atop-daily(1) — Linux manual page

ATOP-DAILY(1)            General Commands Manual            ATOP-DAILY(1)

NAME         top

       atop-daily - daily maintenance of pcp-atop PCP archives

SYNOPSIS         top

       $PCP_BINADM_DIR/atop-daily [--compress-only] [--help] [LOGPATH]

DESCRIPTION         top

       atop-daily performs daily maintenance of pcp-atop(1) PCP archives.
       It is normally called from systemd(1) via the atop-daily.timer
       unit, or automatically by pcp-atop(1) at startup.

       When run without options, atop-daily creates the archive directory
       if absent, compresses prior-day archives using xz(1) for metadata
       and zstd(1) for data volumes, and culls archives older than
       LOGGENERATIONS days (default 28).

       Compression is non-blocking: files are atomically renamed then
       compressed by background processes so the caller and pcp-atop(1)
       can proceed immediately.

OPTIONS         top

       --compress-only
              Compress prior-day archives only; do not cull old archives.
              This mode is used when called from pcp-atop(1) itself at
              startup.

       --help Display a usage message and exit.

CONFIGURATION         top

       The following environment variables may be set in the pcp-atop(1)
       sysconfig file (/etc/sysconfig/atop or /etc/default/atop):

       LOGPATH
              Archive directory.  Default: /var/log/atop.  May also be
              specified as a command line argument.

       LOGGENERATIONS
              Number of days of archives to retain.  Default: 28.  A
              value of 0 disables culling.

FILES         top

       /var/log/atop
              Default directory for pcp-atop(1) archive files.

SEE ALSO         top

       pcp-atop(1), pcp-atopsar(1), PCPIntro(1), systemd(1), xz(1),
       zstd(1), pcp.conf(5) and pcp.env(5).

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 2026-08-04.
       (At that time, the date of the most recent commit that was found
       in the repository was 2026-08-04.)  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
       man-pages@man7.org

Performance Co-Pilot               PCP                      ATOP-DAILY(1)

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