PR_SET_TIMING - set the process timing mode

NAME  LIBRARY  SYNOPSIS  DESCRIPTION  RETURN VALUE  ERRORS  STANDARDS  HISTORY  CAVEATS  SEE ALSO 

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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)

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