__ppc_yield(3) — Linux manual page

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | ATTRIBUTES | STANDARDS | HISTORY | SEE ALSO | COLOPHON

__ppc_yield(3)          Library Functions Manual          __ppc_yield(3)

NAME         top

       __ppc_yield, __ppc_mdoio, __ppc_mdoom - Hint the processor to
       release shared resources

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

       #include <sys/platform/ppc.h>

       void __ppc_yield(void);
       void __ppc_mdoio(void);
       void __ppc_mdoom(void);

DESCRIPTION         top

       These functions provide hints about the usage of resources that
       are shared with other processors on the Power architecture.  They
       can be used, for example, if a program waiting on a lock intends
       to divert the shared resources to be used by other processors.

       __ppc_yield() provides a hint that performance will probably be
       improved if shared resources dedicated to the executing processor
       are released for use by other processors.

       __ppc_mdoio() provides a hint that performance will probably be
       improved if shared resources dedicated to the executing processor
       are released until all outstanding storage accesses to caching-
       inhibited storage have been completed.

       __ppc_mdoom() provides a hint that performance will probably be
       improved if shared resources dedicated to the executing processor
       are released until all outstanding storage accesses to cacheable
       storage for which the data is not in the cache have been
       completed.

ATTRIBUTES         top

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌─────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                           Attribute     Value   │
       ├─────────────────────────────────────┼───────────────┼─────────┤
       │ __ppc_yield(), __ppc_mdoio(),       │ Thread safety │ MT-Safe │
       │ __ppc_mdoom()                       │               │         │
       └─────────────────────────────────────┴───────────────┴─────────┘

STANDARDS         top

       GNU.

HISTORY         top

       glibc 2.18.

SEE ALSO         top

       __ppc_set_ppr_med(3)

       Power ISA, Book II - Section 3.2 ("or" architecture)

COLOPHON         top

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
       fetched from
       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
       2024-06-26.  If you discover any rendering problems in this HTML
       version of the page, or you believe there is a better or more up-
       to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not
       part of the original manual page), send a mail to
       man-pages@man7.org

Linux man-pages 6.9.1          2024-05-02                 __ppc_yield(3)

Pages that refer to this page: __ppc_set_ppr_med(3)