__ppc_yield(3) Library Functions Manual __ppc_yield(3) NAME __ppc_yield, __ppc_mdoio, __ppc_mdoom - Hint the processor to release shared resources LIBRARY Standard C library (libc, -lc) SYNOPSIS #include <sys/platform/ppc.h> void __ppc_yield(void); void __ppc_mdoio(void); void __ppc_mdoom(void); DESCRIPTION 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 im- proved if shared resources dedicated to the executing processor are re- leased for use by other processors. __ppc_mdoio() provides a hint that performance will probably be im- proved if shared resources dedicated to the executing processor are re- leased until all outstanding storage accesses to caching-inhibited storage have been completed. __ppc_mdoom() provides a hint that performance will probably be im- proved if shared resources dedicated to the executing processor are re- leased until all outstanding storage accesses to cacheable storage for which the data is not in the cache have been completed. VERSIONS These functions first appeared in glibc 2.18. ATTRIBUTES For an explanation of the terms used in this section, see at- tributes(7). ┌────────────────────────────────────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├────────────────────────────────────────────┼───────────────┼─────────┤ │__ppc_yield(), __ppc_mdoio(), __ppc_mdoom() │ Thread safety │ MT-Safe │ └────────────────────────────────────────────┴───────────────┴─────────┘ STANDARDS These functions are nonstandard GNU extensions. SEE ALSO __ppc_set_ppr_med(3) Power ISA, Book II - Section 3.2 ("or" architecture) Linux man-pages 6.03 2022-12-15 __ppc_yield(3)
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