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wall_clock: use standard wall clock if rtsc frequency is too low

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german77 2022-01-27 16:53:58 -06:00
parent 2136ebccd6
commit e4c63d432d
1 changed files with 3 additions and 1 deletions
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4
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 {