pcp-numastat(1) — Linux manual page


PCP-NUMASTAT(1)          General Commands Manual         PCP-NUMASTAT(1)

NAME         top

       pcp-numastat - report on NUMA memory allocation

SYNOPSIS         top

       pcp [pcp options] numastat [-Vw?]

DESCRIPTION         top

       pcp-numastat displays NUMA allocation statistics from the kernel
       memory allocator.  Each process has NUMA policies that specify on
       which node pages are allocated.  The performance counters in the
       kernel track on which nodes memory is allocated and these values
       are sampled and reported by pcp-numastat.

       Counters are maintained individually for each NUMA node.  Details
       of the semantics of each reported metric can be retrieved using
       the following command:

            # pminfo ‐dt mem.numa.alloc

OPTIONS         top

       When invoked via the pcp(1) command, the -h/--host, -a/--archive,
       -O/--origin, -Z/--timezone and several other pcp options become
       indirectly available; refer to PCPIntro(1) for a complete
       description of these options.

       The additional command line options available for pcp-numastat

       -V, --version
            Display the current version of the command.

       -w width, --width=width
            Limit display to width.

       -?, --help
            Display usage message and exit.

NOTES         top

       pcp-numastat is inspired by the numastat(1) command and produces
       exactly the same output.


       Environment variables with the prefix PCP_ are used to
       parameterize the file and directory names used by PCP.  On each
       installation, the file /etc/pcp.conf contains the local values
       for these variables.  The $PCP_CONF variable may be used to
       specify an alternative configuration file, as described in

       For environment variables affecting PCP tools, see

SEE ALSO         top

       PCPIntro(1), pcp(1) and numastat(1).

COLOPHON         top

       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 pcp@groups.io.  This page was obtained from the
       project's upstream Git repository
       ⟨https://github.com/performancecopilot/pcp.git⟩ on 2023-12-22.
       (At that time, the date of the most recent commit that was found
       in the repository was 2023-12-16.)  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                   PCP-NUMASTAT(1)

Pages that refer to this page: pcp(1)