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SCHED_GETCPU(3)            Linux Programmer's Manual           SCHED_GETCPU(3)

NAME
       sched_getcpu - determine CPU on which the calling thread is running

SYNOPSIS
       #define _GNU_SOURCE
       #include <utmpx.h>

       int sched_getcpu(void);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       sched_getcpu(): _BSD_SOURCE || _SVID_SOURCE

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  non-negative  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 3.05 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

Linux                             2008-07-03                   SCHED_GETCPU(3)

Time taken: 0.00040 seconds


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