pr_set_timing(2const) - BetterMan

pr_set_timing(2const)

set the process timing mode

distropkg manpages-dev@6.9.1-1dataset 2026-04-01T06:19:02Z+debian+ec4110e+mandoc:1.14.6-4

Synopsis

#include <linux/prctl.h>
  /* Definition of 
PR_*
 constants */
#include <sys/prctl.h>
int prctl(PR_SET_TIMING, long 
mode
);

—

Options · 1

EINVAL

mode is not PR_TIMING_STATISTICAL.

NAME

PR_SET_TIMING - set the process timing mode

LIBRARY

Standard C library (libc, -lc)

SYNOPSIS

bash

#include <linux/prctl.h>\n  /* Definition of \nPR_*\n constants */
\n#include <sys/prctl.h>

bash

int prctl(PR_SET_TIMING, long \nmode\n);

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).