man7.org > Linux > man-pages

Linux/UNIX system programming training

PR_TASK_PERF_EVENTS_DISABLE(2const) — Linux manual page

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | STANDARDS | HISTORY | SEE ALSO | COLOPHON 

PR_TASK_P...TS_DISABLE(2)  System Calls Manual PR_TASK_P...TS_DISABLE(2)

NAME         top

       PR_TASK_PERF_EVENTS_DISABLE, PR_TASK_PERF_EVENTS_ENABLE - disable
       or enable performance counters attached to the calling process

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

       #include <linux/prctl.h>  /* Definition of PR_* constants */
       #include <sys/prctl.h>

       int prctl(PR_TASK_PERF_EVENTS_DISABLE);
       int prctl(PR_TASK_PERF_EVENTS_ENABLE);

DESCRIPTION         top

       PR_TASK_PERF_EVENTS_DISABLE
              Disable all performance counters attached to the calling
              process, regardless of whether the counters were created
              by this process or another process.  Performance counters
              created by the calling process for other processes are
              unaffected.

       PR_TASK_PERF_EVENTS_ENABLE
              The converse of PR_TASK_PERF_EVENTS_DISABLE; enable
              performance counters attached to the calling process.

RETURN VALUE         top

       On success, 0 is returned.  On error, -1 is returned, and errno
       is set to indicate the error.

STANDARDS         top

       Linux.

HISTORY         top

       Linux 2.6.31.

       Originally called PR_TASK_PERF_COUNTERS_DISABLE and
       PR_TASK_PERF_COUNTERS_ENABLE; renamed (retaining the same
       numerical value) in Linux 2.6.32.

SEE ALSO         top

       prctl(2)

       For more information on performance counters, see the Linux
       kernel source file tools/perf/design.txt.

COLOPHON         top

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
       fetched from
       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
       2024-06-26.  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

Linux man-pages 6.9.1          2024-06-02      PR_TASK_P...TS_DISABLE(2)

Pages that refer to this page: prctl(2)

HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface.

For details of in-depth Linux/UNIX system programming training courses that I teach, look here.

Hosting by jambit GmbH.

Cover of TLPI