NAME
sched_getcpu – get current CPU
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <sched.h>
int
sched_getcpu(void);
DESCRIPTION
The sched_getcpu() function returns the current CPU on which the calling thread is running.
RETURN VALUES
sched_getcpu() returns the 0-based index of the current CPU at the time of the call. The value may become invalid immediately after return, unless the thread is pinned to a specific CPU. CPU numbering is the same as used by cpuset(2) and CPU affinity calls.
There are no error values as sched_getcpu() does not fail.
SEE ALSO
cpuset(2), cpuset_getaffinity(2), cpuset_setaffinity(2), pthread_getaffinity_np(3), pthread_setaffinity_np
STANDARDS
The sched_getcpu function originated in Linux. This implementation aims to be source-compatible with the Linux implementation.
HISTORY
The sched_getcpu function was introduced in FreeBSD 13.1.