__ppc_yield, __ppc_mdoio, __ppc_mdoom — Hint the processor to release shared resources
#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(), __ppc_mdoom() |
Thread safety | MT-Safe |
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