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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | ATTRIBUTES | STANDARDS | HISTORY | SEE ALSO | COLOPHON |
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__ppc_yield(3) Library Functions Manual __ppc_yield(3)
__ppc_yield, __ppc_mdoio, __ppc_mdoom - Hint the processor to
release shared resources
Standard C library (libc, -lc)
#include <sys/platform/ppc.h>
void __ppc_yield(void);
void __ppc_mdoio(void);
void __ppc_mdoom(void);
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.
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() │ │ │
└──────────────────────────────────────┴───────────────┴─────────┘
GNU.
glibc 2.18.
__ppc_set_ppr_med(3)
Power ISA, Book II - Section 3.2 ("or" architecture)
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-6.15.tar.gz
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⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
2025-08-11. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
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man-pages@man7.org
Linux man-pages 6.15 2025-05-17 __ppc_yield(3)
Pages that refer to this page: __ppc_set_ppr_med(3)
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