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

4 years ago · c092488c53
1 changed files with 3 additions and 1 deletions
--- a/src/common/wall_clock.cpp
+++ b/src/common/wall_clock.cpp
@ -72,7 +72,9 @@ std::unique_ptr<WallClock> CreateBestMatchingClock(u32 emulated_cpu_frequency,
    if (caps.invariant_tsc) {
        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,
                                                   emulated_clock_frequency);
    } else {