PTHREAD_CURCPU_NP(3) | Library Functions Manual | PTHREAD_CURCPU_NP(3)

# NAME

`pthread_curcpu_np` —
get current CPU identifier

# SYNOPSIS

`#include <pthread.h>`

unsigned int
`pthread_curcpu_np`(void);

# DESCRIPTION

The `pthread_curcpu_np`() function provides a way for a thread to know which CPU it's currently running on.

Note that, unless the thread is bound to a specific CPU, the result might be already stale when the function returns. However, it still can be useful as a hint to achieve better CPU locality.

# RETURN VALUES

The `pthread_curcpu_np`() function returns the integer identifier of the CPU which is currently running the calling thread.

# COMPATIBILITY

The `pthread_curcpu_np`() function is a non-standard extension.

# SEE ALSO

affinity(3), pthread(3)

November 10, 2011 | NetBSD 9.1