sched_getcpu (3) - Linux Man Pages
sched_getcpu: determine CPU on which the calling thread is running
sched_getcpu - determine CPU on which the calling thread is running
#include <sched.h> int sched_getcpu(void);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
- Since glibc 2.14:
- Before glibc 2.14:
_BSD_SOURCE || _SVID_SOURCE
/* _GNU_SOURCE also suffices */
DESCRIPTIONsched_getcpu() returns the number of the CPU on which the calling thread is currently executing.
RETURN VALUEOn success, sched_getcpu() returns a nonnegative CPU number. On error, -1 is returned and errno is set to indicate the error.
- This kernel does not implement getcpu(2).
VERSIONSThis function is available since glibc 2.6.
ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7).
CONFORMING TOsched_getcpu() is glibc-specific.
cpu = sched_getcpu();
is equivalent to the following getcpu(2) call:
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