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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)