plucky (2) PR_TASK_PERF_EVENTS_DISABLE.2.gz

NAME

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

LIBRARY

       Standard C library (libc, -lc)

SYNOPSIS

       #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

       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

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

STANDARDS

       Linux.

HISTORY

       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

       prctl(2)

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