<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_0) on Wed Dec 30 04:50:31 EST 2009 -->
<TITLE>
CacheStats
</TITLE>
<META NAME="date" CONTENT="2009-12-30">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">
<SCRIPT type="text/javascript">
function windowTitle()
{
if (location.href.indexOf('is-external=true') == -1) {
parent.document.title="CacheStats";
}
}
</SCRIPT>
<NOSCRIPT>
</NOSCRIPT>
</HEAD>
<BODY BGCOLOR="white" onload="windowTitle();">
<HR>
<!-- ========= START OF TOP NAVBAR ======= -->
<A NAME="navbar_top"><!-- --></A>
<A HREF="#skip-navbar_top" title="Skip navigation links"></A>
<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY="">
<TR>
<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
<A NAME="navbar_top_firstrow"><!-- --></A>
<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY="">
<TR ALIGN="center" VALIGN="top">
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD>
<TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD>
</TR>
</TABLE>
</TD>
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
</EM>
</TD>
</TR>
<TR>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
<A HREF="../../../com/sleepycat/db/CacheFileStats.html" title="class in com.sleepycat.db"><B>PREV CLASS</B></A>
<A HREF="../../../com/sleepycat/db/CheckpointConfig.html" title="class in com.sleepycat.db"><B>NEXT CLASS</B></A></FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
<A HREF="../../../index.html?com/sleepycat/db/CacheStats.html" target="_top"><B>FRAMES</B></A>
<A HREF="CacheStats.html" target="_top"><B>NO FRAMES</B></A>
<SCRIPT type="text/javascript">
<!--
if(window==top) {
document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>');
}
//-->
</SCRIPT>
<NOSCRIPT>
<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>
</NOSCRIPT>
</FONT></TD>
</TR>
<TR>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD>
</TR>
</TABLE>
<A NAME="skip-navbar_top"></A>
<!-- ========= END OF TOP NAVBAR ========= -->
<HR>
<!-- ======== START OF CLASS DATA ======== -->
<H2>
<FONT SIZE="-1">
com.sleepycat.db</FONT>
<BR>
Class CacheStats</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>com.sleepycat.db.CacheStats</B>
</PRE>
<HR>
<DL>
<DT><PRE>public class <B>CacheStats</B><DT>extends java.lang.Object</DL>
</PRE>
<P>
Cache statistics for a database environment.
<P>
<P>
<HR>
<P>
<!-- ========== METHOD SUMMARY =========== -->
<A NAME="method_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Method Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getAlloc()">getAlloc</A></B>()</CODE>
<BR>
Number of page allocations.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getAllocBuckets()">getAllocBuckets</A></B>()</CODE>
<BR>
Number of hash buckets checked during allocation.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getAllocMaxBuckets()">getAllocMaxBuckets</A></B>()</CODE>
<BR>
Maximum number of hash buckets checked during an allocation.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getAllocMaxPages()">getAllocMaxPages</A></B>()</CODE>
<BR>
Maximum number of pages checked during an allocation.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getAllocPages()">getAllocPages</A></B>()</CODE>
<BR>
Number of pages checked during allocation.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getBytes()">getBytes</A></B>()</CODE>
<BR>
Bytes of cache (total cache size is st_gbytes + st_bytes).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getCacheHit()">getCacheHit</A></B>()</CODE>
<BR>
Requested pages found in the cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getCacheMiss()">getCacheMiss</A></B>()</CODE>
<BR>
Requested pages not found in the cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getGbytes()">getGbytes</A></B>()</CODE>
<BR>
Gigabytes of cache (total cache size is st_gbytes + st_bytes).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getHashBuckets()">getHashBuckets</A></B>()</CODE>
<BR>
Number of hash buckets in buffer hash table.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getHashExamined()">getHashExamined</A></B>()</CODE>
<BR>
Total number of hash elements traversed during hash table lookups.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getHashLongest()">getHashLongest</A></B>()</CODE>
<BR>
The longest chain ever encountered in buffer hash table lookups.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getHashMaxNowait()">getHashMaxNowait</A></B>()</CODE>
<BR>
The number of times a thread of control was able to obtain the
hash bucket lock without waiting on the bucket which had the
maximum number of times that a thread of control needed to wait.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getHashMaxWait()">getHashMaxWait</A></B>()</CODE>
<BR>
The maximum number of times any hash bucket lock was waited for by
a thread of control.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getHashNowait()">getHashNowait</A></B>()</CODE>
<BR>
The number of times that a thread of control was able to obtain a
hash bucket lock without waiting.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getHashSearches()">getHashSearches</A></B>()</CODE>
<BR>
Total number of buffer hash table lookups.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getHashWait()">getHashWait</A></B>()</CODE>
<BR>
The number of times that a thread of control was forced to wait
before obtaining a hash bucket lock.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getIoWait()">getIoWait</A></B>()</CODE>
<BR>
Number of operations blocked waiting for I/O to complete.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getMap()">getMap</A></B>()</CODE>
<BR>
Requested pages mapped into the process' address space (there is no
available information about whether or not this request caused disk I/O,
although examining the application page fault rate may be helpful).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getMaxNumCache()">getMaxNumCache</A></B>()</CODE>
<BR>
Maximum number of caches, as configured with
<A HREF="../../../com/sleepycat/db/EnvironmentConfig.html#setCacheMax(long)"><CODE>EnvironmentConfig.setCacheMax(long)</CODE></A>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getMaxOpenfd()">getMaxOpenfd</A></B>()</CODE>
<BR>
Maximum number of open file descriptors.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getMaxWrite()">getMaxWrite</A></B>()</CODE>
<BR>
The maximum number of sequential write operations scheduled by the library
when flushing dirty pages from the cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getMaxWriteSleep()">getMaxWriteSleep</A></B>()</CODE>
<BR>
The number of microseconds the thread of control should pause before
scheduling further write operations.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getMmapSize()">getMmapSize</A></B>()</CODE>
<BR>
Maximum file size for mmap.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getMultiversionFreed()">getMultiversionFreed</A></B>()</CODE>
<BR>
Number of frozen buffers freed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getMultiversionFrozen()">getMultiversionFrozen</A></B>()</CODE>
<BR>
Number of buffers frozen.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getMultiversionThawed()">getMultiversionThawed</A></B>()</CODE>
<BR>
Number of buffers thawed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getNumCache()">getNumCache</A></B>()</CODE>
<BR>
Number of caches.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getPageClean()">getPageClean</A></B>()</CODE>
<BR>
Clean pages currently in the cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getPageCreate()">getPageCreate</A></B>()</CODE>
<BR>
Pages created in the cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getPageDirty()">getPageDirty</A></B>()</CODE>
<BR>
Dirty pages currently in the cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getPageIn()">getPageIn</A></B>()</CODE>
<BR>
Pages read into the cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getPageOut()">getPageOut</A></B>()</CODE>
<BR>
Pages written from the cache to the backing file.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getPages()">getPages</A></B>()</CODE>
<BR>
Pages in the cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getPageTrickle()">getPageTrickle</A></B>()</CODE>
<BR>
Dirty pages written using <A HREF="../../../com/sleepycat/db/Environment.html#trickleCacheWrite(int)"><CODE>Environment.trickleCacheWrite</CODE></A>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getRegionNowait()">getRegionNowait</A></B>()</CODE>
<BR>
The number of times that a thread of control was able to obtain a
region lock without waiting.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getRegionWait()">getRegionWait</A></B>()</CODE>
<BR>
The number of times that a thread of control was forced to wait
before obtaining a region lock.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getRegSize()">getRegSize</A></B>()</CODE>
<BR>
Individual cache size.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getRoEvict()">getRoEvict</A></B>()</CODE>
<BR>
Clean pages forced from the cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#getRwEvict()">getRwEvict</A></B>()</CODE>
<BR>
Dirty pages forced from the cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sleepycat/db/CacheStats.html#toString()">toString</A></B>()</CODE>
<BR>
For convenience, the CacheStats class has a toString method that
lists all the data fields.</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
<P>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="getGbytes()"><!-- --></A><H3>
getGbytes</H3>
<PRE>
public int <B>getGbytes</B>()</PRE>
<DL>
<DD>Gigabytes of cache (total cache size is st_gbytes + st_bytes).
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getBytes()"><!-- --></A><H3>
getBytes</H3>
<PRE>
public int <B>getBytes</B>()</PRE>
<DL>
<DD>Bytes of cache (total cache size is st_gbytes + st_bytes).
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getNumCache()"><!-- --></A><H3>
getNumCache</H3>
<PRE>
public int <B>getNumCache</B>()</PRE>
<DL>
<DD>Number of caches.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getMaxNumCache()"><!-- --></A><H3>
getMaxNumCache</H3>
<PRE>
public int <B>getMaxNumCache</B>()</PRE>
<DL>
<DD>Maximum number of caches, as configured with
<A HREF="../../../com/sleepycat/db/EnvironmentConfig.html#setCacheMax(long)"><CODE>EnvironmentConfig.setCacheMax(long)</CODE></A>.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getMmapSize()"><!-- --></A><H3>
getMmapSize</H3>
<PRE>
public int <B>getMmapSize</B>()</PRE>
<DL>
<DD>Maximum file size for mmap.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getMaxOpenfd()"><!-- --></A><H3>
getMaxOpenfd</H3>
<PRE>
public int <B>getMaxOpenfd</B>()</PRE>
<DL>
<DD>Maximum number of open file descriptors.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getMaxWrite()"><!-- --></A><H3>
getMaxWrite</H3>
<PRE>
public int <B>getMaxWrite</B>()</PRE>
<DL>
<DD>The maximum number of sequential write operations scheduled by the library
when flushing dirty pages from the cache.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getMaxWriteSleep()"><!-- --></A><H3>
getMaxWriteSleep</H3>
<PRE>
public int <B>getMaxWriteSleep</B>()</PRE>
<DL>
<DD>The number of microseconds the thread of control should pause before
scheduling further write operations.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getPages()"><!-- --></A><H3>
getPages</H3>
<PRE>
public int <B>getPages</B>()</PRE>
<DL>
<DD>Pages in the cache.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getMap()"><!-- --></A><H3>
getMap</H3>
<PRE>
public int <B>getMap</B>()</PRE>
<DL>
<DD>Requested pages mapped into the process' address space (there is no
available information about whether or not this request caused disk I/O,
although examining the application page fault rate may be helpful).
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getCacheHit()"><!-- --></A><H3>
getCacheHit</H3>
<PRE>
public int <B>getCacheHit</B>()</PRE>
<DL>
<DD>Requested pages found in the cache.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getCacheMiss()"><!-- --></A><H3>
getCacheMiss</H3>
<PRE>
public int <B>getCacheMiss</B>()</PRE>
<DL>
<DD>Requested pages not found in the cache.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getPageCreate()"><!-- --></A><H3>
getPageCreate</H3>
<PRE>
public int <B>getPageCreate</B>()</PRE>
<DL>
<DD>Pages created in the cache.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getPageIn()"><!-- --></A><H3>
getPageIn</H3>
<PRE>
public int <B>getPageIn</B>()</PRE>
<DL>
<DD>Pages read into the cache.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getPageOut()"><!-- --></A><H3>
getPageOut</H3>
<PRE>
public int <B>getPageOut</B>()</PRE>
<DL>
<DD>Pages written from the cache to the backing file.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getRoEvict()"><!-- --></A><H3>
getRoEvict</H3>
<PRE>
public int <B>getRoEvict</B>()</PRE>
<DL>
<DD>Clean pages forced from the cache.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getRwEvict()"><!-- --></A><H3>
getRwEvict</H3>
<PRE>
public int <B>getRwEvict</B>()</PRE>
<DL>
<DD>Dirty pages forced from the cache.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getPageTrickle()"><!-- --></A><H3>
getPageTrickle</H3>
<PRE>
public int <B>getPageTrickle</B>()</PRE>
<DL>
<DD>Dirty pages written using <A HREF="../../../com/sleepycat/db/Environment.html#trickleCacheWrite(int)"><CODE>Environment.trickleCacheWrite</CODE></A>.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getPageClean()"><!-- --></A><H3>
getPageClean</H3>
<PRE>
public int <B>getPageClean</B>()</PRE>
<DL>
<DD>Clean pages currently in the cache.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getPageDirty()"><!-- --></A><H3>
getPageDirty</H3>
<PRE>
public int <B>getPageDirty</B>()</PRE>
<DL>
<DD>Dirty pages currently in the cache.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getHashBuckets()"><!-- --></A><H3>
getHashBuckets</H3>
<PRE>
public int <B>getHashBuckets</B>()</PRE>
<DL>
<DD>Number of hash buckets in buffer hash table.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getHashSearches()"><!-- --></A><H3>
getHashSearches</H3>
<PRE>
public int <B>getHashSearches</B>()</PRE>
<DL>
<DD>Total number of buffer hash table lookups.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getHashLongest()"><!-- --></A><H3>
getHashLongest</H3>
<PRE>
public int <B>getHashLongest</B>()</PRE>
<DL>
<DD>The longest chain ever encountered in buffer hash table lookups.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getHashExamined()"><!-- --></A><H3>
getHashExamined</H3>
<PRE>
public int <B>getHashExamined</B>()</PRE>
<DL>
<DD>Total number of hash elements traversed during hash table lookups.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getHashNowait()"><!-- --></A><H3>
getHashNowait</H3>
<PRE>
public int <B>getHashNowait</B>()</PRE>
<DL>
<DD>The number of times that a thread of control was able to obtain a
hash bucket lock without waiting.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getHashWait()"><!-- --></A><H3>
getHashWait</H3>
<PRE>
public int <B>getHashWait</B>()</PRE>
<DL>
<DD>The number of times that a thread of control was forced to wait
before obtaining a hash bucket lock.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getHashMaxNowait()"><!-- --></A><H3>
getHashMaxNowait</H3>
<PRE>
public int <B>getHashMaxNowait</B>()</PRE>
<DL>
<DD>The number of times a thread of control was able to obtain the
hash bucket lock without waiting on the bucket which had the
maximum number of times that a thread of control needed to wait.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getHashMaxWait()"><!-- --></A><H3>
getHashMaxWait</H3>
<PRE>
public int <B>getHashMaxWait</B>()</PRE>
<DL>
<DD>The maximum number of times any hash bucket lock was waited for by
a thread of control.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getRegionNowait()"><!-- --></A><H3>
getRegionNowait</H3>
<PRE>
public int <B>getRegionNowait</B>()</PRE>
<DL>
<DD>The number of times that a thread of control was able to obtain a
region lock without waiting.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getRegionWait()"><!-- --></A><H3>
getRegionWait</H3>
<PRE>
public int <B>getRegionWait</B>()</PRE>
<DL>
<DD>The number of times that a thread of control was forced to wait
before obtaining a region lock.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getMultiversionFrozen()"><!-- --></A><H3>
getMultiversionFrozen</H3>
<PRE>
public int <B>getMultiversionFrozen</B>()</PRE>
<DL>
<DD>Number of buffers frozen.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getMultiversionThawed()"><!-- --></A><H3>
getMultiversionThawed</H3>
<PRE>
public int <B>getMultiversionThawed</B>()</PRE>
<DL>
<DD>Number of buffers thawed.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getMultiversionFreed()"><!-- --></A><H3>
getMultiversionFreed</H3>
<PRE>
public int <B>getMultiversionFreed</B>()</PRE>
<DL>
<DD>Number of frozen buffers freed.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getAlloc()"><!-- --></A><H3>
getAlloc</H3>
<PRE>
public int <B>getAlloc</B>()</PRE>
<DL>
<DD>Number of page allocations.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getAllocBuckets()"><!-- --></A><H3>
getAllocBuckets</H3>
<PRE>
public int <B>getAllocBuckets</B>()</PRE>
<DL>
<DD>Number of hash buckets checked during allocation.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getAllocMaxBuckets()"><!-- --></A><H3>
getAllocMaxBuckets</H3>
<PRE>
public int <B>getAllocMaxBuckets</B>()</PRE>
<DL>
<DD>Maximum number of hash buckets checked during an allocation.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getAllocPages()"><!-- --></A><H3>
getAllocPages</H3>
<PRE>
public int <B>getAllocPages</B>()</PRE>
<DL>
<DD>Number of pages checked during allocation.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getAllocMaxPages()"><!-- --></A><H3>
getAllocMaxPages</H3>
<PRE>
public int <B>getAllocMaxPages</B>()</PRE>
<DL>
<DD>Maximum number of pages checked during an allocation.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getIoWait()"><!-- --></A><H3>
getIoWait</H3>
<PRE>
public int <B>getIoWait</B>()</PRE>
<DL>
<DD>Number of operations blocked waiting for I/O to complete.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getRegSize()"><!-- --></A><H3>
getRegSize</H3>
<PRE>
public int <B>getRegSize</B>()</PRE>
<DL>
<DD>Individual cache size.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>For convenience, the CacheStats class has a toString method that
lists all the data fields.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<!-- ========= END OF CLASS DATA ========= -->
<HR>
<!-- ======= START OF BOTTOM NAVBAR ====== -->
<A NAME="navbar_bottom"><!-- --></A>
<A HREF="#skip-navbar_bottom" title="Skip navigation links"></A>
<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY="">
<TR>
<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
<A NAME="navbar_bottom_firstrow"><!-- --></A>
<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY="">
<TR ALIGN="center" VALIGN="top">
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD>
<TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD>
</TR>
</TABLE>
</TD>
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
</EM>
</TD>
</TR>
<TR>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
<A HREF="../../../com/sleepycat/db/CacheFileStats.html" title="class in com.sleepycat.db"><B>PREV CLASS</B></A>
<A HREF="../../../com/sleepycat/db/CheckpointConfig.html" title="class in com.sleepycat.db"><B>NEXT CLASS</B></A></FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
<A HREF="../../../index.html?com/sleepycat/db/CacheStats.html" target="_top"><B>FRAMES</B></A>
<A HREF="CacheStats.html" target="_top"><B>NO FRAMES</B></A>
<SCRIPT type="text/javascript">
<!--
if(window==top) {
document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>');
}
//-->
</SCRIPT>
<NOSCRIPT>
<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>
</NOSCRIPT>
</FONT></TD>
</TR>
<TR>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD>
</TR>
</TABLE>
<A NAME="skip-navbar_bottom"></A>
<!-- ======== END OF BOTTOM NAVBAR ======= -->
<HR>
</BODY>
</HTML>
distrib
>
Mandriva
>
2010.1
>
x86_64
>
media
>
main-release
>
by-pkgid
>
bc1980b66a68f286299491ee8724e71c
>
files
>
254
