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core_timing: Make use of MicroSleep for x64 CPUs

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For CPUs that support tpause, this should result in significant CPU power savings over thread yield in this spin wait.
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Morph 2023-03-21 21:30:02 -04:00
parent 27c33ab73f
commit e1bce50d8b
1 changed files with 8 additions and 0 deletions
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8
src/core/core_timing.cpp
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@ -10,6 +10,10 @@
#include "common/windows/timer_resolution.h"
#endif
#ifdef ARCHITECTURE_x86_64
#include "common/x64/cpu_wait.h"
#endif
#include "common/microprofile.h"
#include "core/core_timing.h"
#include "core/core_timing_util.h"
@ -269,7 +273,11 @@ void CoreTiming::ThreadLoop() {
if (wait_time >= timer_resolution_ns) {
Common::Windows::SleepForOneTick();
} else {
#ifdef ARCHITECTURE_x86_64
Common::X64::MicroSleep();
#else
std::this_thread::yield();
#endif
}
}