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core_timing: Remove GetCurrentTimerResolution in CoreTiming loop

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Other programs may change this value, but if thousands of syscalls in this loop is undesirable, then we can just set this once.
This commit is contained in:
Morph
2023-07-02 15:05:35 -04:00
parent 657ab0287d
commit c3fbc8d2fe
4 changed files with 22 additions and 5 deletions
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9
src/core/core_timing.cpp
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@ -253,9 +253,6 @@ void CoreTiming::ThreadLoop() {
auto wait_time = *next_time - GetGlobalTimeNs().count();
if (wait_time > 0) {
#ifdef _WIN32
const auto timer_resolution_ns =
Common::Windows::GetCurrentTimerResolution().count();
while (!paused && !event.IsSet() && wait_time > 0) {
wait_time = *next_time - GetGlobalTimeNs().count();
@ -316,4 +313,10 @@ std::chrono::microseconds CoreTiming::GetGlobalTimeUs() const {
return std::chrono::microseconds{Common::WallClock::CPUTickToUS(cpu_ticks)};
}
#ifdef _WIN32
void CoreTiming::SetTimerResolutionNs(std::chrono::nanoseconds ns) {
timer_resolution_ns = ns.count();
}
#endif
} // namespace Core::Timing