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Merge pull request #7791 from german77/wall_clock

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wall_clock: Use standard wall clock if rtsc frequency is too low
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Morph 2022-01-28 20:04:24 -05:00 committed by GitHub
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1 changed files with 3 additions and 1 deletions
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src/common/wall_clock.cpp
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@ -72,7 +72,9 @@ std::unique_ptr<WallClock> CreateBestMatchingClock(u32 emulated_cpu_frequency,
if (caps.invariant_tsc) { if (caps.invariant_tsc) {
rtsc_frequency = EstimateRDTSCFrequency(); rtsc_frequency = EstimateRDTSCFrequency();
} }
if (rtsc_frequency == 0) {
// Fallback to StandardWallClock if rtsc period is higher than a nano second
if (rtsc_frequency <= 1000000000) {
return std::make_unique<StandardWallClock>(emulated_cpu_frequency, return std::make_unique<StandardWallClock>(emulated_cpu_frequency,
emulated_clock_frequency); emulated_clock_frequency);
} else { } else {