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<TD WIDTH=500><P VALIGN=MIDDLE ALIGN=LEFT><A HREF="index.html"><FONT COLOR="#cc0000">Home</FONT></A> · <A HREF="lab.pmchart.html"><FONT COLOR="#cc0000">Charts</FONT></A> · <A HREF="timecontrol.html"><FONT COLOR="#cc0000">Time Control</FONT></A></P></TD>
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<H1 ALIGN=CENTER STYLE="margin-top: 0.48cm; margin-bottom: 0.32cm"><FONT SIZE=7>What's New in PCP</FONT></H1>
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A detailed log of changes included in each PCP release is included on the PCP website as well as in the PCP source code, so here we aim to provide a more general overview of the significant changes between major versions.
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<TR><TD WIDTH=100% BGCOLOR="#081c59"><P ALIGN=LEFT><FONT SIZE=5 COLOR="#ffffff"><B>PCP 3.0+</B></FONT></P></TD></TR>
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<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Native Win32 port, replacing the Cygwin/MSVC hybrid</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Dynamic namespace support where PMDAs manage namespaces</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">RPM packaging split into separate development, runtime and shared library packages</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">PCP packages shipping with all major Linux distributions - Debian, Fedora, RHEL, SLES, Ubuntu.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Local context API changes for finer control in tools.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Import API changes and Perl module for creating archives.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Cluster or server farm management improvements - pmieconf open sourced, pmlogconf completely redesigned.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">MMV PMDA open sourced (SGI) and Parfait Java instrumentation open sourced (Aconex).</FONT></P>
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<TR><TD WIDTH=100% BGCOLOR="#081c59"><P ALIGN=LEFT><FONT SIZE=5 COLOR="#ffffff">PCP 2.3 - 2.9</FONT></P></TD></TR>
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<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Mac OS X port and kernel PMDA included.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Solaris port and kernel PMDA merged.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">AIX port and kernel PMDA merged.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">PCP test suite open sourced.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">FHS (filesystem hierarchy standard) compliance on Linux.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">IANA ports registered for pmcd and pmproxy daemons.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Support for open source pmtime in some console tools.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Support for Perl PMDAs introduced.</FONT></P>
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<TR><TD WIDTH=100% BGCOLOR="#081c59"><P ALIGN=LEFT><FONT SIZE=5 COLOR="#ffffff">PCP 2.2 - Linux and IRIX</FONT></P></TD></TR>
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<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">First open source contributions from outside SGI.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Linux and IRIX building from the same source tree.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Introduction of /etc/pcp.conf to manage platform differences.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Included in SGI Advanced Cluster Environment and SGI ProPack platforms for Linux.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">pmie extended to facilitate running as a daemon, startup and other support scripts introduced to aid management of pmie farms.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Cross-platform namespace support - overhaul to remove the irix prefix for all kernel metrics.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Estimation of PCP archive sizes. The -r option for pmlogger(1) causes the size of the physical record(s) for each group of metrics and the expected contribution of the group to the size of the PCP archive for one full day of collection to be reported in the log file. The -s option to pmdumplog(1) will report the size in bytes of each physical record in the archive. </FONT></P>
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<TR><TD WIDTH=100% BGCOLOR="#081c59"><P ALIGN=LEFT><FONT SIZE=5 COLOR="#ffffff">PCP 2.0 - IRIX</FONT></P></TD></TR>
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<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Distributed namespace - the PCP Performance Metrics Name Space (PMNS) had previously been local to the application wishing to make reference to PCP metrics by name. In PCP 2.0 the PMNS operations are now directed to the host or archive that is the source of the desired performance metrics. The default name space is now associated with the PCP collector host rather than PCP monitor host.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">Product structural changes, including the inclusion of pcp_eoe in SGI IRIX by default.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">pmlogsummary utility introduced for statistical log analysis.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">A new (smaller) format for PMDA help text files was introduced.</FONT></P>
<LI><P STYLE=" margin-bottom: 0cm; margin-top: 0cm;"><FONT COLOR="#000060">pmlogger uses additional pmcd state change information to embed "mark" records in PCP archives when new PMDAs are started by pmcd. During replay, this prevents interpolation of values in the PCP archive across the life of an old and a new instance of the same PMDA. </FONT></P>
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