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pcp-summary - Online in the Cloud

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This is the command pcp-summary that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


pcp, pcp-summary - run a command or summarize an installation

SYNOPSIS


pcp [pcp options...] pcp-command [command options...]
pcp [-P] [-a archive] [-h host] [-n pmnsfile]

DESCRIPTION


The pcp command is used in one of two modes. By default, it summarizes the Performance
Co-Pilot (PCP) installation on the local host. This mode can also be used to summarize
the installation from a remote host, or a historical installation from a PCP archive.
This mode indirectly invokes the pcp-summary command (in the absence of any other
requested command).

Alternatively, a command can be passed to pcp to run, again possibly in the context of a
remote host or historical archive.

COMMAND MODE


When pcp is invoked with a command to run, it will search for the named command in
$PCP_BINADM_DIR and also $HOME/.pcp/bin (these are usually scripts, and are installed with
a "pcp-" prefix). This mode of operation allows system performance tools to be
implemented using PMAPI(3) services, while still preserving all of their usual command
line options. These options are thus (indirectly) augmented with the standard PCP option
set, as described in PCPIntro(1).

This provides a convenient mechanism for obtaining retrospective or remote monitoring
capabilities while preserving the behaviour of the system tools.

For example, the pcp-free(1) utility can be invoked as follows, for recorded data from
host munch:

$ pcp -a $PCP_LOG_DIR/pmlogger/munch/20140317 -O 11:35:50am free -m
total used free shared buffers cached
Mem: 23960 14554 9406 0 176 2137
-/+ buffers/cache: 12240 11720
Swap 12047 0 12047

A complete list of the available and installed tools is provided along with the pcp(1)
usage message, but some examples include: pcp-free(1), pcp-uptime(1) and pcp-numastat(1).

SUMMARY MODE


The summary report includes: the OS version, a summary of the hardware inventory, the
local timezone, the PCP software version, the state of the pmcd(1) process and associated
Performance Metrics Domain Agents (PMDAs), as well as information about any PCP archive
loggers (pmlogger(1)) and PCP inference engines (pmie(1)) that are running.

With no arguments, pcp reports on the local host, however the following options are
accepted:

-a archive
Report the PCP configuration as described in the PCP archive log archive.

-h host
Report the PCP configuration on host rather than the local host.

-n pmnsfile
Load an alternative Performance Metrics Name Space (pmns(5)) from the file
pmnsfile.

-P Display pmie performance information - counts of rules evaluating to true, false,
or indeterminate, as well as the expected rate of rule calculation, for each pmie
process running on the default host. Refer to the individual metric help text for
full details on these values.

All of the displayed values are performance metric values and further information for each
can be obtained using the command:

$ pminfo -dtT metric

The complete set of metrics required by pcp to produce its output is contained in
$PCP_VAR_DIR/config/pmlogconf/tools/pcp-summary.

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