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CPU preemption control: Improve analysis

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Eladash 2022-09-14 15:03:51 +03:00 • committed by Ivan
parent cf4da5c4d1
commit 2e9ee81dcd
4 changed files with 16 additions and 7 deletions
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10
rpcs3/Emu/RSX/RSXThread.cpp
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@ -3493,8 +3493,6 @@ namespace rsx
intr_thread->cmd_notify.notify_one();
}
}
evaluate_cpu_usage_reduction_limits();
}
void thread::evaluate_cpu_usage_reduction_limits()
@ -3574,9 +3572,9 @@ namespace rsx
const u64 cur_diff = (i == frame_times.size() ? current_time : frame_times[i].timestamp) - frame_times[i - 1].timestamp;
if (const u64 diff_of_diff = abs_dst(cur_diff, avg_frame_time);
diff_of_diff >= avg_frame_time / 4)
diff_of_diff >= avg_frame_time / 7)
{
if (diff_of_diff >= avg_frame_time / 2)
if (diff_of_diff >= avg_frame_time / 3)
{
highered_delay++;
hard_fails++;
@ -3608,7 +3606,7 @@ namespace rsx
preempt_count = 0;
}
if (hard_fails > 2 && is_last_frame_a_fail)
if ((hard_fails > 2 || fails > 20) && is_last_frame_a_fail)
{
hard_measures_taken = preempt_count > 1;
preempt_count = preempt_count * 7 / 8;
@ -3641,7 +3639,7 @@ namespace rsx
}
}
// Sudden FPS drop detection
else if ((fails > 10 || hard_fails > 2 || !(abs_dst(fps_10, 300) < 20 || abs_dst(fps_10, 600) < 30 || abs_dst(fps_10, g_cfg.video.vblank_rate * 10) < 20 || abs_dst(fps_10, g_cfg.video.vblank_rate * 10 / 2) < 30)) && lowered_delay < highered_delay && is_last_frame_a_fail)
else if ((fails > 13 || hard_fails > 2 || !(abs_dst(fps_10, 300) < 20 || abs_dst(fps_10, 600) < 30 || abs_dst(fps_10, g_cfg.video.vblank_rate * 10) < 20 || abs_dst(fps_10, g_cfg.video.vblank_rate * 10 / 2) < 30)) && lowered_delay < highered_delay && is_last_frame_a_fail)
{
lower_preemption_count();
}