__ppc_yield(3)

1__ppc_yield(3)             Library Functions Manual             __ppc_yield(3)
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NAME

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

10       Standard C library (libc, -lc)
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SYNOPSIS

13       #include <sys/platform/ppc.h>
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15       void __ppc_yield(void);
16       void __ppc_mdoio(void);
17       void __ppc_mdoom(void);
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DESCRIPTION

20       These functions provide hints about the usage  of  resources  that  are
21       shared  with  other  processors on the Power architecture.  They can be
22       used, for example, if a program waiting on a lock intends to divert the
23       shared resources to be used by other processors.
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25       __ppc_yield()  provides  a  hint  that performance will probably be im‐
26       proved if shared resources dedicated to the executing processor are re‐
27       leased for use by other processors.
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29       __ppc_mdoio()  provides  a  hint  that performance will probably be im‐
30       proved if shared resources dedicated to the executing processor are re‐
31       leased  until  all  outstanding  storage  accesses to caching-inhibited
32       storage have been completed.
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34       __ppc_mdoom() provides a hint that performance  will  probably  be  im‐
35       proved if shared resources dedicated to the executing processor are re‐
36       leased until all outstanding storage accesses to cacheable storage  for
37       which the data is not in the cache have been completed.
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ATTRIBUTES

40       For  an  explanation  of  the  terms  used  in  this  section,  see at‐
41       tributes(7).
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43       ┌────────────────────────────────────────────┬───────────────┬─────────┐
44       │Interface                                   │ Attribute     │ Value   │
45       ├────────────────────────────────────────────┼───────────────┼─────────┤
46       │__ppc_yield(), __ppc_mdoio(), __ppc_mdoom() │ Thread safety │ MT-Safe │
47       └────────────────────────────────────────────┴───────────────┴─────────┘
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STANDARDS

50       GNU.
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HISTORY

53       glibc 2.18.
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