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systemtap-client-2.1-2.fc17.i686.rpm

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class="previous"><a accesskey="p" href="appe-Publican-Revision_History.html"><strong>Prev</strong></a></li><li class="next"></li></ul><div class="index" id="idm8627824"><div class="titlepage"><div><div><h2 class="title">Index</h2></div></div></div><div class="index"><div class="indexdiv"><h3>Symbols</h3><dl><dt>$count</dt><dd><dl><dt>sample usage</dt><dd><dl><dt>local variables, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt></dl></dd></dl></dd><dt>$return</dt><dd><dl><dt>sample usage</dt><dd><dl><dt>local variables, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a>, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd></dl></dd><dt>@avg (integer extractor)</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt>@count (integer extractor)</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt>@max (integer extractor)</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt>@min (integer extractor)</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt>@sum (integer extractor)</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>A</h3><dl><dt>adding values to statistical aggregates</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt>advantages of cross-instrumentation, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>aggregate element not found</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd><dt>aggregates (statistical)</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd><dt>aggregation overflow</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd><dt>algebraic formulas using arrays</dt><dd><dl><dt>reading values from arrays</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt>architecture notation, determining, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>architecture of SystemTap, <a class="indexterm" href="understanding-how-systemtap-works.html#understanding-architecture-tools">Architecture</a></dt><dt>array locals not supported</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>array operations</dt><dd><dl><dt>assigning associated values, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt><dd><dl><dt>associating timestamps to process names, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd><dt>associative arrays, <a class="indexterm" href="arrayoperators.html">Array Operations in SystemTap</a></dt><dt>clearing arrays/array elements, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dd><dl><dt>delete operator, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>multiple array operations within the same probe, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>virtual file system reads (non-cumulative), tallying, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt></dl></dd><dt>computing for statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dd><dl><dt>@avg (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@count (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@max (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@min (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@sum (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>adding values to statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>count (operator), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>extracting data collected by statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd><dt>conditional statements, using arrays in, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt><dd><dl><dt>testing for array membership, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt></dl></dd><dt>deleting arrays and array elements, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>incrementing associated values, <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt><dd><dl><dt>tallying virtual file system reads (VFS reads), <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt></dl></dd><dt>multiple elements in an array, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>processing multiple elements in an array, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dd><dl><dt>cumulative virtual file system reads, tallying, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>foreach, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>iterations, processing elements in an array as, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>limiting the output of foreach, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>ordering the output of foreach, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd><dt>reading values from arrays, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dd><dl><dt>computing for timestamp deltas, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dt>empty unique keys, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dt>using arrays in simple computations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dd><dl><dt>(see also associative arrays)</dt></dl></dd><dt>assigning associated values</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt><dd><dl><dt>associating timestamps to process names, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd><dt>associating timestamps to process names</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd></dl></dd><dt>associated values</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt>associating timestamps to process names</dt><dd><dl><dt>assigning associated values</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd></dl></dd><dt>associative arrays</dt><dd><dl><dt>introduction, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dd><dl><dt>associated values, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dt>example, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dt>index expression, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dt>key pairs, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dt>syntax, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dt>unique keys, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt>asynchronous events</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>B</h3><dl><dt>begin</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt>building instrumentation modules from SystemTap scripts, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>building kernel modules from SystemTap scripts, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></div><div class="indexdiv"><h3>C</h3><dl><dt>call graph tracing</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt>capabilities of SystemTap</dt><dd><dl><dt>Introduction, <a class="indexterm" href="intro-systemtap-vs-others.html">SystemTap Capabilities</a></dt></dl></dd><dt>changes to file attributes, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatch2sect.html">Monitoring Changes to File Attributes</a></dt></dl></dd><dt>clearing arrays/array elements</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dd><dl><dt>delete operator, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>multiple array operations within the same probe, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>virtual file system reads (non-cumulative), tallying, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt></dl></dd></dl></dd><dt>command-line arguments</dt><dd><dl><dt>SystemTap handler constructs</dt><dd><dl><dt>handlers, <a class="indexterm" href="commandlineargssect.html">Command-Line Arguments</a></dt></dl></dd></dl></dd><dt>compiling instrumentation/kernel modules from SystemTap scripts, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>components</dt><dd><dl><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dd><dl><dt>@avg (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@count (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@max (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@min (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@sum (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>adding values to statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>count (operator), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>extracting data collected by statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt>computing for timestamp deltas</dt><dd><dl><dt>reading values from arrays</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt>conditional operators</dt><dd><dl><dt>conditional statements</dt><dd><dl><dt>handlers, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt></dl></dd></dl></dd><dt>conditional statements, using arrays in</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt><dd><dl><dt>testing for array membership, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt></dl></dd></dl></dd><dt>CONFIG_HZ, computing for, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt><dt>contended user-space locks (futex contentions), identifying</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt></dl></dd><dt>copy fault</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd><dt>count operator</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array (operator), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt>counting function calls</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt></dl></dd><dt>CPU ticks</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt></dl></dd><dt>cpu()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>cross-compiling, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>cross-instrumentation</dt><dd><dl><dt>advantages of, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>building kernel modules from SystemTap scripts, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>configuration</dt><dd><dl><dt>host system and target system, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt>generating instrumentation from SystemTap scripts, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>host system, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>instrumentation module, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>target kernel, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>target system, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt>ctime()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>ctime(), example of usage</dt><dd><dl><dt>script examples, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt></dl></dd><dt>cumulative I/O, tracking</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd><dt>cumulative virtual file system reads, tallying</dt><dd><dl><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>D</h3><dl><dt>delete operator</dt><dd><dl><dt>clearing arrays/array elements</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt></dl></dd></dl></dd><dt>determining architecture notation, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>determining the kernel version, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information RPMs</a></dt><dt>determining time spent in kernel and user space</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt></dl></dd><dt>device I/O, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt>device number of a file (integer format)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt>disk I/O traffic, summarizing</dt><dd><dl><dt>script examples, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt></dl></dd><dt>division by 0</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd><dt>documentation goals</dt><dd><dl><dt>Introduction, <a class="indexterm" href="introduction.html#goals">Documentation Goals</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>E</h3><dl><dt>embedded code in unprivileged script</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>empty unique keys</dt><dd><dl><dt>reading values from arrays</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt>end</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt>errors</dt><dd><dl><dt>parse/semantics error, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dd><dl><dt>embedded code in unprivileged script, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>expected symbol/array index expression, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>grammatical/typographical script error, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>guru mode, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>invalid values to variables/arrays, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>libdwfl failure, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>no match for probe point, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>non-global arrays, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>probe mismatch, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>type mismatch for identifier, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved function call, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved target-symbol expression, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved type for identifier, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>variable modified during 'foreach', <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd><dt>runtime errors/warnings, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dd><dl><dt>aggregate element not found, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>aggregation overflow, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>copy fault, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>division by 0, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>MAXACTION exceeded, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>MAXNESTING exceeded, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>number of errors: N, skipped probes: M, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>pointer dereference fault, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd><dt>event types</dt><dd><dl><dt>Understanding How SystemTap Works, <a class="indexterm" href="understanding-how-systemtap-works.html">Understanding How SystemTap Works</a></dt></dl></dd><dt>Events</dt><dd><dl><dt>asynchronous events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>begin, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>end, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>examples of synchronous and asynchronous events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>introduction, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>kernel.function("function"), <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>kernel.trace("tracepoint"), <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>module("module"), <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>synchronous events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>syscall.system_call, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>timer events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>user-space, <a class="indexterm" href="userspace-probing.html#uevents">User-Space Events</a></dt><dt>vfs.file_operation, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>wildcards, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt>events and handlers, <a class="indexterm" href="understanding-how-systemtap-works.html">Understanding How SystemTap Works</a></dt><dt>events wildcards, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>example</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt>example of multiple command-line arguments</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt>examples of synchronous and asynchronous events</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html">Useful SystemTap Scripts</a></dt><dd><dl><dt>call graph tracing, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>CPU ticks, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt><dt>ctime(), example of usage, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt><dt>determining time spent in kernel and user space, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt><dt>file device number (integer format), <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>futex (lock) contentions, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt><dt>futex system call, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt><dt>identifying contended user-space locks (i.e. futex contentions), <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt><dt>if/else conditionals, alternative syntax, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a></dt><dt>inode number, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>monitoring changes to file attributes, <a class="indexterm" href="inodewatch2sect.html">Monitoring Changes to File Attributes</a></dt><dt>monitoring device I/O, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt><dt>monitoring I/O block time, <a class="indexterm" href="ioblktimesect.html">Periodically Print I/O Block Time</a></dt><dt>monitoring I/O time, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt><dt>monitoring incoming TCP connections, <a class="indexterm" href="useful-systemtap-scripts.html#tcpconnectionssect">Monitoring Incoming TCP Connections</a></dt><dt>monitoring polling applications, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a></dt><dt>monitoring reads and writes to a file, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>monitoring system calls, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt><dt>monitoring system calls (volume per process), <a class="indexterm" href="syscallsbyprocpidsect.html">Tracking System Call Volume Per Process</a></dt><dt>monitoring TCP packets, <a class="indexterm" href="useful-systemtap-scripts.html#tcpdumplikesect">Monitoring TCP Packets</a></dt><dt>multiple command-line arguments, example of, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>net/socket.c, tracing functions from, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt><dt>network profiling, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a>, <a class="indexterm" href="useful-systemtap-scripts.html#dropwatchsect">Monitoring Network Packets Drops in Kernel</a></dt><dt>stat -c, determining file device number (integer format), <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>stat -c, determining whole device number, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt><dt>summarizing disk I/O traffic, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt><dt>tallying function calls, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt><dt>thread_indent(), sample usage, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>timer.ms(), sample usage, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt><dt>timer.s(), sample usage, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a>, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt><dt>tracing functions called in network socket code, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt><dt>tracking cumulative I/O, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt><dt>trigger function, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>usrdev2kerndev(), <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt><dt>whole device number (usage as a command-line argument), <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt>exceeded MAXACTION</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd><dt>exceeded MAXNESTING</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd><dt>exit()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>expected symbol/array index expression</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>extracting data collected by statistical aggregates</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>F</h3><dl><dt>fedoradebugurl.sh, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information RPMs</a></dt><dt>feedback</dt><dd><dl><dt>contact information for this manual, <a class="indexterm" href="pr01s02.html">We Need Feedback!</a></dt></dl></dd><dt>file attributes, monitoring changes to</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatch2sect.html">Monitoring Changes to File Attributes</a></dt></dl></dd><dt>file device number (integer format)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt>file reads/writes, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt>flight recorder mode, <a class="indexterm" href="using-usage.html#flight-recorder">SystemTap Flight Recorder Mode</a></dt><dd><dl><dt>file mode, <a class="indexterm" href="using-usage.html#file-flight-recorder">File Flight Recorder</a></dt><dt>in-memory mode, <a class="indexterm" href="using-usage.html#memory-flight-recorder">In-memory Flight Recorder</a></dt></dl></dd><dt>for loops</dt><dd><dl><dt>conditional statements</dt><dd><dl><dt>handlers, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt></dl></dd></dl></dd><dt>foreach</dt><dd><dl><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd><dt>format</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt>format and syntax</dt><dd><dl><dt>printf(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>SystemTap handler constructs</dt><dd><dl><dt>handlers, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt></dl></dd><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt>format specifiers</dt><dd><dl><dt>printf(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>format strings</dt><dd><dl><dt>printf(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>function call (unresolved)</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>function calls (incoming/outgoing), tracing</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt>function calls, tallying</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt></dl></dd><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dd><dl><dt>cpu(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>ctime(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>gettimeofday_s(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>pp(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd><dt>target(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>thread_indent(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>tid(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>uid(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>functions (used in handlers)</dt><dd><dl><dt>exit(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>functions called in network socket code, tracing</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt></dl></dd><dt>futex (lock) contentions</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt></dl></dd><dt>futex contention, definition</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt></dl></dd><dt>futex contentions, identifying</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt></dl></dd><dt>futex system call</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>G</h3><dl><dt>gettimeofday_s()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>global</dt><dd><dl><dt>SystemTap handler constructs</dt><dd><dl><dt>handlers, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt></dl></dd></dl></dd><dt>goals, documentation</dt><dd><dl><dt>Introduction, <a class="indexterm" href="introduction.html#goals">Documentation Goals</a></dt></dl></dd><dt>grammatical/typographical script error</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>guru mode</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>H</h3><dl><dt>handler functions, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>handlers</dt><dd><dl><dt>conditional statements, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dd><dl><dt>conditional operators, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dt>for loops, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dt>if/else, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dt>while loops, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt></dl></dd><dt>introduction, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>SystemTap handler constructs, <a class="indexterm" href="scriptconstructions.html">Basic SystemTap Handler Constructs</a></dt><dd><dl><dt>command-line arguments, <a class="indexterm" href="commandlineargssect.html">Command-Line Arguments</a></dt><dt>global, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt><dt>syntax and format, <a class="indexterm" href="scriptconstructions.html">Basic SystemTap Handler Constructs</a></dt><dt>variable notations, <a class="indexterm" href="commandlineargssect.html">Command-Line Arguments</a></dt><dt>variables, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt></dl></dd><dt>target variables, <a class="indexterm" href="targetvariables.html">Target Variables</a></dt></dl></dd><dt>handlers and events, <a class="indexterm" href="understanding-how-systemtap-works.html">Understanding How SystemTap Works</a></dt><dd><dl><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt>heaviest disk reads/writes, identifying</dt><dd><dl><dt>script examples, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt></dl></dd><dt>host system</dt><dd><dl><dt>cross-instrumentation, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt>host system and target system</dt><dd><dl><dt>cross-instrumentation</dt><dd><dl><dt>configuration, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>I</h3><dl><dt>I/O block time, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="ioblktimesect.html">Periodically Print I/O Block Time</a></dt></dl></dd><dt>I/O monitoring (by device)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt>I/O time, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt></dl></dd><dt>I/O traffic, summarizing</dt><dd><dl><dt>script examples, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt></dl></dd><dt>identifier type mismatch</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>identifying contended user-space locks (i.e. futex contentions)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt></dl></dd><dt>identifying heaviest disk reads/writes</dt><dd><dl><dt>script examples, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt></dl></dd><dt>if/else</dt><dd><dl><dt>conditional statements</dt><dd><dl><dt>handlers, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt></dl></dd></dl></dd><dt>if/else conditionals, alternative syntax</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a></dt></dl></dd><dt>if/else statements, using arrays in</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt></dl></dd><dt>incoming TCP connections, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#tcpconnectionssect">Monitoring Incoming TCP Connections</a></dt></dl></dd><dt>incoming/outgoing function calls, tracing</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt>incrementing associated values</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt><dd><dl><dt>tallying virtual file system reads (VFS reads), <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt></dl></dd></dl></dd><dt>index expression</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt>initial testing, <a class="indexterm" href="using-systemtap.html#testing">Initial Testing</a></dt><dt>inode number</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt>Installation</dt><dd><dl><dt>fedoradebugurl.sh, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information RPMs</a></dt><dt>initial testing, <a class="indexterm" href="using-systemtap.html#testing">Initial Testing</a></dt><dt>kernel information packages, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information RPMs</a></dt><dt>kernel version, determining the, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information RPMs</a></dt><dt>required packages, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information RPMs</a></dt><dt>Setup and Installation, <a class="indexterm" href="using-systemtap.html#using-setup">Installation and Setup</a></dt><dt>systemtap package, <a class="indexterm" href="using-systemtap.html#installproper">Installing SystemTap</a></dt><dt>systemtap-runtime package, <a class="indexterm" href="using-systemtap.html#installproper">Installing SystemTap</a></dt></dl></dd><dt>instrumentation module</dt><dd><dl><dt>cross-instrumentation, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt>instrumentation modules from SystemTap scripts, building, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>integer extractors</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt>Introduction</dt><dd><dl><dt>capabilities of SystemTap, <a class="indexterm" href="intro-systemtap-vs-others.html">SystemTap Capabilities</a></dt><dt>documentation goals, <a class="indexterm" href="introduction.html#goals">Documentation Goals</a></dt><dt>goals, documentation, <a class="indexterm" href="introduction.html#goals">Documentation Goals</a></dt><dt>limitations of SystemTap, <a class="indexterm" href="intro-systemtap-vs-others.html">SystemTap Capabilities</a></dt><dt>performance monitoring, <a class="indexterm" href="introduction.html">Introduction</a></dt></dl></dd><dt>invalid division</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd><dt>invalid values to variables/arrays</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>iterations, processing elements in an array as</dt><dd><dl><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>K</h3><dl><dt>kernel and user space, determining time spent in</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt></dl></dd><dt>kernel information packages, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information RPMs</a></dt><dt>kernel modules from SystemTap scripts, building, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>kernel version, determining the, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information RPMs</a></dt><dt>kernel.function("function")</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt>kernel.trace("tracepoint")</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt>key pairs</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>L</h3><dl><dt>libdwfl failure</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>limitations of SystemTap</dt><dd><dl><dt>Introduction, <a class="indexterm" href="intro-systemtap-vs-others.html">SystemTap Capabilities</a></dt></dl></dd><dt>limiting the output of foreach</dt><dd><dl><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd><dt>local variables</dt><dd><dl><dt>name, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>sample usage</dt><dd><dl><dt>$count, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt><dt>$return, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a>, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>M</h3><dl><dt>MAXACTION exceeded</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd><dt>MAXNESTING exceeded</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd><dt>membership (in array), testing for</dt><dd><dl><dt>conditional statements, using arrays in</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt></dl></dd></dl></dd><dt>module("module")</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt>monitoring changes to file attributes</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatch2sect.html">Monitoring Changes to File Attributes</a></dt></dl></dd><dt>monitoring cumulative I/O</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd><dt>monitoring device I/O</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt>monitoring I/O block time</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="ioblktimesect.html">Periodically Print I/O Block Time</a></dt></dl></dd><dt>monitoring I/O time</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt></dl></dd><dt>monitoring incoming TCP connections</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#tcpconnectionssect">Monitoring Incoming TCP Connections</a></dt></dl></dd><dt>monitoring polling applications</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a></dt></dl></dd><dt>monitoring reads and writes to a file</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt>monitoring system calls</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt></dl></dd><dt>monitoring system calls (volume per process)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="syscallsbyprocpidsect.html">Tracking System Call Volume Per Process</a></dt></dl></dd><dt>monitoring TCP packets</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#tcpdumplikesect">Monitoring TCP Packets</a></dt></dl></dd><dt>multiple array operations within the same probe</dt><dd><dl><dt>clearing arrays/array elements</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt></dl></dd></dl></dd><dt>multiple command-line arguments, example of</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt>multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>N</h3><dl><dt>name</dt><dd><dl><dt>local variables, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>net/socket.c, tracing functions from</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt></dl></dd><dt>network profiling</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a>, <a class="indexterm" href="useful-systemtap-scripts.html#dropwatchsect">Monitoring Network Packets Drops in Kernel</a></dt></dl></dd><dt>network socket code, tracing functions called in</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt></dl></dd><dt>network traffic, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a>, <a class="indexterm" href="useful-systemtap-scripts.html#dropwatchsect">Monitoring Network Packets Drops in Kernel</a></dt></dl></dd><dt>no match for probe point</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>non-global arrays</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>number of errors: N, skipped probes: M</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>O</h3><dl><dt>operations</dt><dd><dl><dt>assigning associated values</dt><dd><dl><dt>associating timestamps to process names, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd><dt>associative arrays, <a class="indexterm" href="arrayoperators.html">Array Operations in SystemTap</a></dt><dt>clearing arrays/array elements, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dd><dl><dt>delete operator, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>multiple array operations within the same probe, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>virtual file system reads (non-cumulative), tallying, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt></dl></dd><dt>computing for statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dd><dl><dt>@avg (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@count (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@max (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@min (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@sum (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>adding values to statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>count (operator), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>extracting data collected by statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd><dt>conditional statements, using arrays in, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt><dd><dl><dt>testing for array membership, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt></dl></dd><dt>deleting arrays and array elements, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>incrementing associated values, <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt><dd><dl><dt>tallying virtual file system reads (VFS reads), <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt></dl></dd><dt>multiple elements in an array, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>processing multiple elements in an array, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dd><dl><dt>cumulative virtual file system reads, tallying, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>foreach, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>iterations, processing elements in an array as, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>limiting the output of foreach, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>ordering the output of foreach, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd><dt>reading values from arrays, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dd><dl><dt>computing for timestamp deltas, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dt>empty unique keys, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dt>using arrays in simple computations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt>options, stap</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt>ordering the output of foreach</dt><dd><dl><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd><dt>overflow of aggregation</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>P</h3><dl><dt>packages required to run SystemTap, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information RPMs</a></dt><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dd><dl><dt>embedded code in unprivileged script, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>expected symbol/array index expression, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>grammatical/typographical script error, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>guru mode, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>invalid values to variables/arrays, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>libdwfl failure, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>no match for probe point, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>non-global arrays, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>probe mismatch, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>type mismatch for identifier, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved function call, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved target-symbol expression, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved type for identifier, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>variable modified during 'foreach', <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>performance monitoring</dt><dd><dl><dt>Introduction, <a class="indexterm" href="introduction.html">Introduction</a></dt></dl></dd><dt>pointer dereference fault</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd><dt>polling applications, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a></dt></dl></dd><dt>pp()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>printf()</dt><dd><dl><dt>format specifiers, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>format strings, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>syntax and format, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>printing I/O activity (cumulative)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd><dt>printing I/O block time (periodically)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="ioblktimesect.html">Periodically Print I/O Block Time</a></dt></dl></dd><dt>probe mismatch</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>probe point (no match for)</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>probes</dt><dd><dl><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>cumulative virtual file system reads, tallying</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd><dt>foreach</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd><dt>limiting the output of foreach</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd><dt>ordering the output of foreach</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd><dt>profiling the network</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a>, <a class="indexterm" href="useful-systemtap-scripts.html#dropwatchsect">Monitoring Network Packets Drops in Kernel</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>R</h3><dl><dt>reading values from arrays</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dd><dl><dt>empty unique keys, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dt>using arrays in simple computations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd><dt>computing for timestamp deltas</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt>reads/writes to a file, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt>required packages, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information RPMs</a></dt><dt>RPMs required to run SystemTap, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information RPMs</a></dt><dt>running scripts from standard input, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>running SystemTap scripts</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dd><dl><dt>aggregate element not found, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>aggregation overflow, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>copy fault, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>division by 0, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>MAXACTION exceeded, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>MAXNESTING exceeded, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>number of errors: N, skipped probes: M, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>pointer dereference fault, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>S</h3><dl><dt>script examples</dt><dd><dl><dt>call graph tracing, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>CPU ticks, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt><dt>ctime(), example of usage, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt><dt>determining time spent in kernel and user space, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt><dt>file device number (integer format), <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>futex (lock) contentions, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt><dt>futex system call, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt><dt>identifying contended user-space locks (i.e. futex contentions), <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt><dt>if/else conditionals, alternative syntax, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a></dt><dt>inode number, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>monitoring changes to file attributes, <a class="indexterm" href="inodewatch2sect.html">Monitoring Changes to File Attributes</a></dt><dt>monitoring device I/O, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt><dt>monitoring I/O block time, <a class="indexterm" href="ioblktimesect.html">Periodically Print I/O Block Time</a></dt><dt>monitoring I/O time, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt><dt>monitoring incoming TCP connections, <a class="indexterm" href="useful-systemtap-scripts.html#tcpconnectionssect">Monitoring Incoming TCP Connections</a></dt><dt>monitoring polling applications, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a></dt><dt>monitoring reads and writes to a file, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>monitoring system calls, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt><dt>monitoring system calls (volume per process), <a class="indexterm" href="syscallsbyprocpidsect.html">Tracking System Call Volume Per Process</a></dt><dt>monitoring TCP packets, <a class="indexterm" href="useful-systemtap-scripts.html#tcpdumplikesect">Monitoring TCP Packets</a></dt><dt>multiple command-line arguments, example of, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>net/socket.c, tracing functions from, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt><dt>network profiling, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a>, <a class="indexterm" href="useful-systemtap-scripts.html#dropwatchsect">Monitoring Network Packets Drops in Kernel</a></dt><dt>stat -c, determining file device number (integer format), <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>stat -c, determining whole device number, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt><dt>summarizing disk I/O traffic, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt><dt>tallying function calls, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt><dt>thread_indent(), sample usage, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>timer.ms(), sample usage, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt><dt>timer.s(), sample usage, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a>, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt><dt>tracing functions called in network socket code, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt><dt>tracking cumulative I/O, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt><dt>trigger function, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>usrdev2kerndev(), <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt><dt>whole device number (usage as a command-line argument), <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt>scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dd><dl><dt>components, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>events and handlers, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>format and syntax, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>functions, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>probes, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>statement blocks, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt>sessions, SystemTap, <a class="indexterm" href="understanding-how-systemtap-works.html#understanding-architecture-tools">Architecture</a></dt><dt>Setup and Installation, <a class="indexterm" href="using-systemtap.html#using-setup">Installation and Setup</a></dt><dt>Stack backtrace</dt><dd><dl><dt>user-space, <a class="indexterm" href="ustack.html">User-Space Stack Backtraces</a></dt></dl></dd><dt>standard input, running scripts from</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt>stap</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt>stap options, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>stapdev</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt>staprun</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt>stapusr</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt>stat -c, determining file device number (integer format)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt>stat -c, determining whole device number</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt>statement blocks</dt><dd><dl><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt>statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd><dt>summarizing disk I/O traffic</dt><dd><dl><dt>script examples, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt></dl></dd><dt>synchronous events</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt>syntax</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt>syntax and format</dt><dd><dl><dt>printf(), <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>SystemTap handler constructs</dt><dd><dl><dt>handlers, <a class="indexterm" href="scriptconstructions.html">Basic SystemTap Handler Constructs</a></dt></dl></dd><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt>syscall.system_call</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt>system calls volume (per process), monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="syscallsbyprocpidsect.html">Tracking System Call Volume Per Process</a></dt></dl></dd><dt>system calls, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt></dl></dd><dt>SystemTap architecture, <a class="indexterm" href="understanding-how-systemtap-works.html#understanding-architecture-tools">Architecture</a></dt><dt>SystemTap handlers</dt><dd><dl><dt>SystemTap handler constructs, <a class="indexterm" href="scriptconstructions.html">Basic SystemTap Handler Constructs</a></dt><dd><dl><dt>syntax and format, <a class="indexterm" href="scriptconstructions.html">Basic SystemTap Handler Constructs</a></dt></dl></dd></dl></dd><dt>systemtap package, <a class="indexterm" href="using-systemtap.html#installproper">Installing SystemTap</a></dt><dt>SystemTap script functions, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dd><dl><dt>components, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>events and handlers, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>format and syntax, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>functions, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>probes, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>statement blocks, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd><dt>useful examples, <a class="indexterm" href="useful-systemtap-scripts.html">Useful SystemTap Scripts</a></dt></dl></dd><dt>SystemTap scripts, how to run, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>SystemTap sessions, <a class="indexterm" href="understanding-how-systemtap-works.html#understanding-architecture-tools">Architecture</a></dt><dt>SystemTap statements</dt><dd><dl><dt>conditional statements, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dd><dl><dt>conditional operators, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dt>for loops, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dt>if/else, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dt>while loops, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt></dl></dd><dt>SystemTap handler constructs</dt><dd><dl><dt>command-line arguments, <a class="indexterm" href="commandlineargssect.html">Command-Line Arguments</a></dt><dt>global, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt><dt>variable notations, <a class="indexterm" href="commandlineargssect.html">Command-Line Arguments</a></dt><dt>variables, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt></dl></dd></dl></dd><dt>systemtap-runtime package, <a class="indexterm" href="using-systemtap.html#installproper">Installing SystemTap</a></dt><dt>systemtap-testsuite package</dt><dd><dl><dt>sample scripts, <a class="indexterm" href="useful-systemtap-scripts.html">Useful SystemTap Scripts</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>T</h3><dl><dt>tallying function calls</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt></dl></dd><dt>tallying virtual file system reads (VFS reads)</dt><dd><dl><dt>incrementing associated values</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt></dl></dd></dl></dd><dt>Tapsets</dt><dd><dl><dt>definition of, <a class="indexterm" href="understanding-tapsets.html">Tapsets</a></dt></dl></dd><dt>target kernel</dt><dd><dl><dt>cross-instrumentation, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt>target system</dt><dd><dl><dt>cross-instrumentation, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt>target system and host system</dt><dd><dl><dt>configuration, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt>target variables, <a class="indexterm" href="targetvariables.html">Target Variables</a></dt><dd><dl><dt>pretty printing, <a class="indexterm" href="targetvariables.html#targetprettyprinting">Pretty Printing Target Variables</a></dt><dt>typecasting, <a class="indexterm" href="typecasting.html">Typecasting</a></dt><dt>user-space, <a class="indexterm" href="utargetvariable.html">Accessing User-Space Target Variables</a></dt><dt>variable availability, <a class="indexterm" href="targetavailable.html">Checking Target Variable Availablility</a></dt></dl></dd><dt>target()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>target-symbol expression, unresolved</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>TCP connections (incoming), monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#tcpconnectionssect">Monitoring Incoming TCP Connections</a></dt></dl></dd><dt>TCP packets, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#tcpdumplikesect">Monitoring TCP Packets</a></dt></dl></dd><dt>testing for array membership</dt><dd><dl><dt>conditional statements, using arrays in</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt></dl></dd></dl></dd><dt>testing, initial, <a class="indexterm" href="using-systemtap.html#testing">Initial Testing</a></dt><dt>thread_indent()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>thread_indent(), sample usage</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt>tid()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>time of I/O </dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt></dl></dd><dt>time spent in kernel/user space, determining</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt></dl></dd><dt>timer events</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt>timer.ms(), sample usage</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt></dl></dd><dt>timer.s(), sample usage</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a>, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt></dl></dd><dt>timestamp deltas, computing for</dt><dd><dl><dt>reading values from arrays</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt>timestamps, association thereof to process names</dt><dd><dl><dt>assigning associated values</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd></dl></dd><dt>tracepoint, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a>, <a class="indexterm" href="useful-systemtap-scripts.html#dropwatchsect">Monitoring Network Packets Drops in Kernel</a></dt><dt>tracing call graph</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt>tracing functions called in network socket code</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt></dl></dd><dt>tracing incoming/outgoing function calls</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt>tracking cumulative I/O</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd><dt>trigger function</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt>type mismatch for identifier</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>typographical script error</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>U</h3><dl><dt>uid()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt></dl></dd><dt>uname -m, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>uname -r, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information RPMs</a></dt><dt>understainding SystemTap errors</dt><dd><dl><dt>runtime errors/warnings, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dd><dl><dt>aggregate element not found, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>aggregation overflow, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>copy fault, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>division by 0, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>MAXACTION exceeded, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>MAXNESTING exceeded, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>number of errors: N, skipped probes: M, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt><dt>pointer dereference fault, <a class="indexterm" href="runtimeerror.html">Run Time Errors and Warnings</a></dt></dl></dd></dl></dd><dt>Understanding How SystemTap Works, <a class="indexterm" href="understanding-how-systemtap-works.html">Understanding How SystemTap Works</a></dt><dd><dl><dt>architecture, <a class="indexterm" href="understanding-how-systemtap-works.html#understanding-architecture-tools">Architecture</a></dt><dt>event types, <a class="indexterm" href="understanding-how-systemtap-works.html">Understanding How SystemTap Works</a></dt><dt>events and handlers, <a class="indexterm" href="understanding-how-systemtap-works.html">Understanding How SystemTap Works</a></dt><dt>SystemTap sessions, <a class="indexterm" href="understanding-how-systemtap-works.html#understanding-architecture-tools">Architecture</a></dt></dl></dd><dt>understanding SystemTap errors</dt><dd><dl><dt>parse/semantics error, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dd><dl><dt>embedded code in unprivileged script, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>expected symbol/array index expression, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>grammatical/typographical script error, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>guru mode, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>invalid values to variables/arrays, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>libdwfl failure, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>no match for probe point, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>non-global arrays, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>probe mismatch, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>type mismatch for identifier, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved function call, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved target-symbol expression, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved type for identifier, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>variable modified during 'foreach', <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>unique keys</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt>unprivileged script, embedded code in</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>unresolved function call</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>unresolved target-symbol expression</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>unresolved type for identifier</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>unsafe embedded code in unprivileged script</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>Usage</dt><dd><dl><dt>options, stap, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>running SystemTap scripts, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>standard input, running scripts from, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>stap, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>stapdev, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>staprun, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>stapusr, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt>useful examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html">Useful SystemTap Scripts</a></dt><dt>user and kernel space, determining time spent in</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt></dl></dd><dt>using arrays in simple computations</dt><dd><dl><dt>reading values from arrays</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt>Using SystemTap, <a class="indexterm" href="using-systemtap.html">Using SystemTap</a></dt><dt>usrdev2kerndev()</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>V</h3><dl><dt>values, assignment of</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd><dt>variable modified during 'foreach'</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt>variable notations</dt><dd><dl><dt>SystemTap handler constructs</dt><dd><dl><dt>handlers, <a class="indexterm" href="commandlineargssect.html">Command-Line Arguments</a></dt></dl></dd></dl></dd><dt>variables</dt><dd><dl><dt>SystemTap handler constructs</dt><dd><dl><dt>handlers, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt></dl></dd></dl></dd><dt>variables (local)</dt><dd><dl><dt>name, <a class="indexterm" href="systemtapscript-handler.html">Systemtap Handler/Body</a></dt><dt>sample usage</dt><dd><dl><dt>$count, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt><dt>$return, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a>, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd></dl></dd><dt>VFS reads, tallying of</dt><dd><dl><dt>incrementing associated values</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt></dl></dd></dl></dd><dt>vfs.file_operation</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt>virtual file system reads (cumulative), tallying</dt><dd><dl><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd><dt>virtual file system reads (non-cumulative), tallying</dt><dd><dl><dt>clearing arrays/array elements</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>W</h3><dl><dt>while loops</dt><dd><dl><dt>conditional statements</dt><dd><dl><dt>handlers, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt></dl></dd></dl></dd><dt>whole device number (usage as a command-line argument)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt>wildcards in events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>writes/reads to a file, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd></dl></div></div></div><ul class="docnav"><li 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