NAME¶

PR_SET_TIMING - set the process timing mode

LIBRARY¶

Standard C library (libc, -lc)

SYNOPSIS¶

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

int prctl(PR_SET_TIMING, long mode);

DESCRIPTION¶

Set whether to use (normal, traditional) statistical process timing or accurate timestamp-based process timing, by passing PR_TIMING_STATISTICAL or PR_TIMING_TIMESTAMP to mode.

RETURN VALUE¶

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

ERRORS¶

EINVAL

mode is not PR_TIMING_STATISTICAL.

STANDARDS¶

Linux.

HISTORY¶

Linux 2.6.0.

CAVEATS¶

PR_TIMING_TIMESTAMP is not currently implemented (attempting to set this mode will yield the error EINVAL).

SEE ALSO¶

prctl(2), PR_GET_TIMING(2const)