Add stability metric

Percentage of frames that were at or above com_maxfps value
etfdevs · Aug 11, 2024 · 0909e00 · 0909e00
1 parent dd8307e
commit 0909e00
Showing 1 changed file with 13 additions and 2 deletions.
diff --git a/src/client/cl_main.c b/src/client/cl_main.c
@@ -801,6 +801,7 @@ static void CL_TimedemoResults(void) {
 	int      onePercentIdx, pointOnePercentIdx;
 	float    fps, minFps, maxFps;
 	char     onePercent[8], pointOnePercent[8];
+	int      desiredFrametime, numOptimalFrames;
 
 	time = Sys_Microseconds() - clc.timedemo.timeDemoStart;
 
@@ -844,15 +845,25 @@ static void CL_TimedemoResults(void) {
 		Com_sprintf(pointOnePercent, sizeof(pointOnePercent), "%3.2f", 1000000.0f / sortedFrametimes[numFrames - 1 - pointOnePercentIdx]);
 	}
 
+	desiredFrametime = 1000 / com_maxfps->integer;
+	numOptimalFrames = 0;
+
+	for (i = 0; i < numFrames; i++) {
+		if (sortedFrametimes[i] / 1000.0f <= desiredFrametime) {
+			numOptimalFrames++;
+		}
+	}
+
 	Com_Printf("\n----- Benchmark results -----\n");
-	Com_Printf("\n%-18s %3.2f sec\n%-18s %i\n%-18s %3.2f\n%-18s %3.2f\n%-18s %3.2f\n%-18s %s\n%-18s %s\n",
+	Com_Printf("\n%-18s %3.2f sec\n%-18s %i\n%-18s %3.2f\n%-18s %3.2f\n%-18s %3.2f\n%-18s %s\n%-18s %s\n%-18s %3.2f pct\n",
 			   "Time elapsed:", time / 1000000.0f,
 			   "Total frames:", numFrames,
 			   "Minimum fps:", minFps,
 			   "Maximum fps:", maxFps,
 			   "Average fps:", fps,
 			   "99th pct. min:", onePercentIdx ? onePercent : "--",
-			   "99.9th pct. min:", pointOnePercentIdx ? pointOnePercent : "--");
+			   "99.9th pct. min:", pointOnePercentIdx ? pointOnePercent : "--",
+			   "Stability:", (float)numOptimalFrames / (float)numFrames * 100.0f);
 	Com_Printf("\n-----------------------------\n\n");
 }