sched_getcpu


SYNOPSIS
       #define _GNU_SOURCE         /* See feature_test_macros(7) */
       #include <sched.h>

       int sched_getcpu(void);

DESCRIPTION
       sched_getcpu()  returns  the  number  of  the  CPU on which the calling
       thread is currently executing.

RETURN VALUE
       On success, sched_getcpu() returns a nonnegative CPU number.  On error,
       -1 is returned and errno is set to indicate the error.

ERRORS
       ENOSYS This kernel does not implement getcpu(2).

VERSIONS
       This function is available since glibc 2.6.

CONFORMING TO
       sched_getcpu() is glibc specific.

NOTES
       The call

           cpu = sched_getcpu();

       is equivalent to the following getcpu(2) call:

           int c, s;
           s = getcpu(&c, NULL, NULL);
           cpu = (s == -1) ? s : c;

SEE ALSO
       getcpu(2)

COLOPHON
       This  page  is  part of release 3.35 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://man7.org/linux/man-pages/.



Linux                             2010-10-31                   SCHED_GETCPU(3)
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