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3.3. Performance Co-Pilot (PCP)
Red Hat Enterprise Linux 6 introduces support for Performance Co-Pilot (PCP), a suite of tools, services, and libraries for acquiring, storing, and analyzing system-level performance measurements. Its light-weight distributed architecture makes it particularly well-suited for centralized analysis of complex systems. Performance metrics can be added using the Python, Perl, C++, and C interfaces. Analysis tools can use the client APIs (Python, C++, C) directly, and rich web applications can explore all available performance data using a JSON interface.
The Performance Co-Pilot Collection Daemon (
pmcd) is responsible for collecting performance data on the host system, and various client tools, such as
pmstat, can be used to retrieve, display, archive, and process this data on the same host or over the network. The pcp package provides the command-line tools and underlying functionality. The graphical tool also requires the pcp-gui package.
- For information on PCP, see the Index of Performance Co-Pilot (PCP) articles, solutions, tutorials and white papers on the Red Hat Customer Portal.
- The manual page named PCPIntro serves as an introduction to Performance Co-Pilot. It provides a list of available tools as well as a description of available configuration options and a list of related manual pages. By default, comprehensive documentation is installed in the
/usr/share/doc/pcp-doc/directory, notably the Performance Co-Pilot User's and Administrator's Guide and Performance Co-Pilot Programmer's Guide.
- If you need to determine what PCP tool has the functionality of an older tool you are already familiar with, see the Side-by-side comparison of PCP tools with legacy tools Red Hat Knowledgebase article.
Overview of System Services and Tools Provided by PCP
Performance Co-Pilot (PCP) provides a large number of command-line tools, graphical tools, and libraries. For more information on these tools, see their respective manual pages.
Table 3.1. System Services Distributed with Performance Co-Pilot in Red Hat Enterprise Linux 6
Table 3.2. Tools Distributed with Performance Co-Pilot in Red Hat Enterprise Linux 6