sched_yield man page on Archlinux

Man page or keyword search:  
man Server   11224 pages
apropos Keyword Search (all sections)
Output format
Archlinux logo
[printable version]

SCHED_YIELD(2)		   Linux Programmer's Manual		SCHED_YIELD(2)

       sched_yield - yield the processor

       #include <sched.h>

       int sched_yield(void);

       sched_yield()  causes  the  calling  thread to relinquish the CPU.  The
       thread is moved to the end of the queue for its static priority	and  a
       new thread gets to run.

       On  success,  sched_yield()  returns  0.	 On error, -1 is returned, and
       errno is set appropriately.

       In the Linux implementation, sched_yield() always succeeds.


       If the calling thread is the only thread in the highest	priority  list
       at that time, it will continue to run after a call to sched_yield().

       POSIX  systems on which sched_yield() is available define _POSIX_PRIORÔÇÉ
       ITY_SCHEDULING in <unistd.h>.

       Strategic calls to sched_yield()	 can  improve  performance  by	giving
       other  threads  or  processes  a chance to run when (heavily) contended
       resources (e.g., mutexes) have been  released  by  the  caller.	 Avoid
       calling	sched_yield()  unnecessarily  or  inappropriately  (e.g., when
       resources needed by other schedulable threads are  still	 held  by  the
       caller),	 since	doing  so will result in unnecessary context switches,
       which will degrade system performance.

       sched_setscheduler(2) for a description of Linux scheduling

       Programming for the real	 world	-  POSIX.4  by	Bill  O.  Gallmeister,
       O'Reilly & Associates, Inc., ISBN 1-56592-074-0.

       This  page  is  part of release 3.65 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at

Linux				  2008-10-18			SCHED_YIELD(2)

List of man pages available for Archlinux

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net