From bff14532825e7517882ca913738347059f73cf7f Mon Sep 17 00:00:00 2001 From: Morph <39850852+Morph1984@users.noreply.github.com> Date: Wed, 1 Mar 2023 21:06:19 -0500 Subject: core_timing: Use higher precision sleeps on Windows The precision of sleep_for and wait_for is limited to 1-1.5ms on Windows. Using SleepForOneTick() allows us to sleep for exactly one interval of the current timer resolution. This allows us to take advantage of systems that have a timer resolution of 0.5ms to reduce CPU overhead in the event loop. --- src/core/core_timing.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'src/core/core_timing.h') diff --git a/src/core/core_timing.h b/src/core/core_timing.h index da366637b..4b89c0c39 100644 --- a/src/core/core_timing.h +++ b/src/core/core_timing.h @@ -122,6 +122,9 @@ public: /// Returns current time in emulated in Clock cycles u64 GetClockTicks() const; + /// Returns current time in nanoseconds. + std::chrono::nanoseconds GetCPUTimeNs() const; + /// Returns current time in microseconds. std::chrono::microseconds GetGlobalTimeUs() const; @@ -139,7 +142,8 @@ private: void Reset(); - std::unique_ptr clock; + std::unique_ptr cpu_clock; + std::unique_ptr event_clock; s64 global_timer = 0; -- cgit v1.2.3