diff --git a/src/common/timer.cpp b/src/common/timer.cpp index 679824f45..931d28dd8 100644 --- a/src/common/timer.cpp +++ b/src/common/timer.cpp @@ -27,9 +27,13 @@ static HANDLE GetSleepTimer() return s_sleep_timer; s_sleep_timer_created = true; - s_sleep_timer = CreateWaitableTimer(nullptr, TRUE, nullptr); + s_sleep_timer = CreateWaitableTimerEx(nullptr, nullptr, CREATE_WAITABLE_TIMER_HIGH_RESOLUTION, TIMER_ALL_ACCESS); if (!s_sleep_timer) - std::fprintf(stderr, "CreateWaitableTimer() failed, falling back to Sleep()\n"); + { + s_sleep_timer = CreateWaitableTimer(nullptr, TRUE, nullptr); + if (!s_sleep_timer) + std::fprintf(stderr, "CreateWaitableTimer() failed, falling back to Sleep()\n"); + } return s_sleep_timer; } @@ -89,8 +93,19 @@ void Timer::SleepUntil(Value value, bool exact) { if (exact) { - while (GetCurrentValue() < value) - SleepUntil(value, false); + for (;;) + { + Value current = GetCurrentValue(); + if (current >= value) + break; + + // spin for the last 1ms + if ((value - current) > ConvertMillisecondsToValue(1)) + { + SleepUntil(value, false); + continue; + } + } } else {