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HostTiming: Pause the hardware clock on pause.

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This commit is contained in:
Fernando Sahmkow 2020-02-25 12:28:55 -04:00
parent 6bf137a0e8
commit 18dcb09342
7 changed files with 23 additions and 1 deletions
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7
src/common/x64/native_clock.cpp
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@ -65,6 +65,13 @@ u64 NativeClock::GetRTSC() {
return accumulated_ticks;
}
void NativeClock::Pause(bool is_paused) {
if (!is_paused) {
_mm_mfence();
last_measure = __rdtsc();
}
}
std::chrono::nanoseconds NativeClock::GetTimeNS() {
const u64 rtsc_value = GetRTSC();
return std::chrono::nanoseconds{MultiplyAndDivide64(rtsc_value, 1000000000, rtsc_frequency)};