The Performance Co-Pilot (PCP) is a toolkit designed for monitoring
and managing system-level performance. These services are
distributed and scalable to accommodate the most complex system
configurations and performance problems.
In order to achieve these goals effectively, protocol and on-disk
compatibility is provided between different versions of PCP. It is
feasible (and indeed encouraged) to use current PCP tools to
interrogate any remote, down-rev or up-rev pmcd(1) and also to replay
any historical PCP archive (the PCP testsuite includes PCP archives
created over 20 years ago!).
From time to time the PCP developers deprecate and remove PCP
utilities, replacing them with new versions of utilities providing
comparable features. This page describes replacement utilities for
historical PCP tools.
Earlier versions of PCP (prior to v5.1.1) provided a shell script
that was used internally by pmlogconf(1), located in the
PCP_BINADM_DIR directory, named pmlogconf-setup. This script has
been retired. The equivalent functionality remains available in the
unlikely event it should be needed via the -s or --setup option to
The version 1 pmlogconf-setup configuration file format (from IRIX)
was also retired in this release, after more than 10 years of
automatic transition to version 2 format by pmlogconf.
The standalone PCP daemon manager pmmgr has been retired from PCP
v5.2.0 onward. It was phased out in favour of the simpler pmfind(1)
service for setting up pmie(1) and pmlogger(1) ``farms'' of
discovered PCP collector systems with pmfind_check(1). The new
mechanisms, especially when integrated with systemd, require no
additional daemons and are better integrated with the pmie and
pmlogger service management used elsewhere in PCP.
The standalone web applications packaged with older PCP versions have
been superceded by grafana-server(1) with the grafana-pcp plugin
This plugin provides an implementation of the Vector application, as
well as data sources for pmdabpftrace(1) (bpftrace(8) scripts) and
pmseries(1) (fast, scalable Redis-based time series analysis).
The pmwebd daemon has been superceded by pmproxy(1) from PCP v5
By default, pmproxy will now listen on both its original port (44322)
and the PCP web API port (44323) when the time series support is
pmproxy provides a compatible implementation of the live PMWEBAPI(3)
interfaces used traditionally by the Vector web application (see the
``PCP-WEBAPPS'' section). It also provides extensions to the
original pmwebd REST APIs (such as derived metrics, namespace lookups
and instance domain profiles), support for the HTTPS protocol, and
fast, scalable time series querying using the pmseries(1) REST API
The partial Graphite API emulation provided by pmwebd has not been
re-implemented - applications wishing to use similar services could
use the scalable time series REST APIs described on PMWEBAPI(3).
This page is part of the PCP (Performance Co-Pilot) project.
Information about the project can be found at ⟨http://www.pcp.io/⟩.
If you have a bug report for this manual page, send it to
email@example.com. This page was obtained from the project's upstream
Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on
2020-07-14. (At that time, the date of the most recent commit that
was found in the repository was 2020-07-14.) If you discover any
rendering problems in this HTML version of the page, or you believe
there is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
Performance Co-Pilot PCP PCPCOMPAT(1)