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Merge pull request #6317 from ameerj/fps-fix

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perf_stats: Rework FPS counter to be more accurate
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bunnei 2021-05-18 19:56:29 -07:00 • committed by GitHub
commit 7d86a6ff02
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10 changed files with 26 additions and 14 deletions
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9
src/core/perf_stats.h
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@ -5,6 +5,7 @@
#pragma once
#include <array>
#include <atomic>
#include <chrono>
#include <cstddef>
#include <mutex>
@ -15,8 +16,8 @@ namespace Core {
struct PerfStatsResults {
/// System FPS (LCD VBlanks) in Hz
double system_fps;
/// Game FPS (GSP frame submissions) in Hz
double game_fps;
/// Average game FPS (GPU frame renders) in Hz
double average_game_fps;
/// Walltime per system frame, in seconds, excluding any waits
double frametime;
/// Ratio of walltime / emulated time elapsed
@ -72,7 +73,7 @@ private:
/// Cumulative number of system frames (LCD VBlanks) presented since last reset
u32 system_frames = 0;
/// Cumulative number of game frames (GSP frame submissions) since last reset
u32 game_frames = 0;
std::atomic<u32> game_frames = 0;
/// Point when the previous system frame ended
Clock::time_point previous_frame_end = reset_point;
@ -80,6 +81,8 @@ private:
Clock::time_point frame_begin = reset_point;
/// Total visible duration (including frame-limiting, etc.) of the previous system frame
Clock::duration previous_frame_length = Clock::duration::zero();
/// Previously computed fps
double previous_fps = 0;
};
class FrameLimiter {