GETCPUID(3C) Standard C Library Functions GETCPUID(3C)

NAME

getcpuid, gethomelgroup - obtain information on scheduling decisions

SYNOPSIS

#include <sys/processor.h>

processorid_t getcpuid(void);


ushort_t gethomelgroup(void);

DESCRIPTION

The getcpuid() function returns the processor ID on which the calling
thread is currently executing.


The gethomelgroup() function returns the home locality group ID of
the calling thread.

RETURN VALUES

See DESCRIPTION.

ERRORS

No errors are defined.

USAGE

Both the current CPU and the home locality group can change at any
time.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------------+
|Interface Stability | getcpuid() is Stable; |
| | gethomelgroup() is |
| | Obsolete. |
+--------------------+-----------------------+
|MT-Level | MT-Safe |
+--------------------+-----------------------+

SEE ALSO

meminfo(2), p_online(2), processor_bind(2), processor_info(2),
pset_assign(2), pset_bind(2), pset_info(2), sysconf(3C),
lgrp_home(3LGRP), attributes(7), psradm(8), psrinfo(8), psrset(8)

NOTES

The gethomelgroup() function is obsolete and might be removed in a
future release. It has been replaced by lgrp_home(3LGRP).

April 16, 2003 GETCPUID(3C)