-benchmarkruns: show a report of min/median/max of the benchmarks at the end

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11547 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/cl_demo.c b/cl_demo.c
index 6a0f194c5b88834e522cc9b667a501aa5c7a825d..5ca4780ee4cdc8ac950572290db37f7b58c07e54 100644 (file)
--- a/cl_demo.c
+++ b/cl_demo.c
@@ -457,6 +457,25 @@ void CL_PlayDemo_f (void)
        cls.demostarting = false;
 }
 
+typedef struct
+{
+       int frames;
+       double time, totalfpsavg;
+       double fpsmin, fpsavg, fpsmax;
+}
+benchmarkhistory_t;
+static size_t doublecmp_offset;
+static int doublecmp_withoffset(const void *a_, const void *b_)
+{
+       const double *a = (const double *) ((const char *) a_ + doublecmp_offset);
+       const double *b = (const double *) ((const char *) b_ + doublecmp_offset);
+       if(*a > *b)
+               return +1;
+       if(*a < *b)
+               return -1;
+       return 0;
+}
+
 /*
 ====================
 CL_FinishTimeDemo
@@ -489,6 +508,17 @@ static void CL_FinishTimeDemo (void)
                i = COM_CheckParm("-benchmarkruns");
                if(i && i + 1 < com_argc)
                {
+                       static benchmarkhistory_t *history = NULL;
+                       if(!history)
+                               history = Z_Malloc(sizeof(*history) * atoi(com_argv[i + 1]));
+
+                       history[benchmark_runs - 1].frames = frames;
+                       history[benchmark_runs - 1].time = time;
+                       history[benchmark_runs - 1].totalfpsavg = totalfpsavg;
+                       history[benchmark_runs - 1].fpsmin = fpsmin;
+                       history[benchmark_runs - 1].fpsavg = fpsavg;
+                       history[benchmark_runs - 1].fpsmax = fpsmax;
+
                        if(atoi(com_argv[i + 1]) > benchmark_runs)
                        {
                                // restart the benchmark
@@ -496,7 +526,53 @@ static void CL_FinishTimeDemo (void)
                                // cannot execute here
                        }
                        else
+                       {
+                               // print statistics
+                               int first = COM_CheckParm("-benchmarkruns_skipfirst") ? 1 : 0;
+                               if(benchmark_runs > first)
+                               {
+#define DO_MIN(f) \
+                                       for(i = first; i < benchmark_runs; ++i) if((i == first) || (history[i].f < f)) f = history[i].f
+
+#define DO_MAX(f) \
+                                       for(i = first; i < benchmark_runs; ++i) if((i == first) || (history[i].f > f)) f = history[i].f
+
+#define DO_MED(f) \
+                                       doublecmp_offset = (char *)&history->f - (char *)history; \
+                                       qsort(history + first, benchmark_runs - first, sizeof(*history), doublecmp_withoffset); \
+                                       if((first + benchmark_runs) & 1) \
+                                               f = history[(first + benchmark_runs - 1) / 2].f; \
+                                       else \
+                                               f = (history[(first + benchmark_runs - 2) / 2].f + history[(first + benchmark_runs) / 2].f) / 2
+
+                                       DO_MIN(frames);
+                                       DO_MAX(time);
+                                       DO_MIN(totalfpsavg);
+                                       DO_MIN(fpsmin);
+                                       DO_MIN(fpsavg);
+                                       DO_MIN(fpsmax);
+                                       Con_Printf("MIN: %i frames %5.7f seconds %5.7f fps, one-second fps min/avg/max: %.0f %.0f %.0f (%i seconds)\n", frames, time, totalfpsavg, fpsmin, fpsavg, fpsmax, cls.td_onesecondavgcount);
+
+                                       DO_MED(frames);
+                                       DO_MED(time);
+                                       DO_MED(totalfpsavg);
+                                       DO_MED(fpsmin);
+                                       DO_MED(fpsavg);
+                                       DO_MED(fpsmax);
+                                       Con_Printf("MED: %i frames %5.7f seconds %5.7f fps, one-second fps min/avg/max: %.0f %.0f %.0f (%i seconds)\n", frames, time, totalfpsavg, fpsmin, fpsavg, fpsmax, cls.td_onesecondavgcount);
+
+                                       DO_MAX(frames);
+                                       DO_MIN(time);
+                                       DO_MAX(totalfpsavg);
+                                       DO_MAX(fpsmin);
+                                       DO_MAX(fpsavg);
+                                       DO_MAX(fpsmax);
+                                       Con_Printf("MAX: %i frames %5.7f seconds %5.7f fps, one-second fps min/avg/max: %.0f %.0f %.0f (%i seconds)\n", frames, time, totalfpsavg, fpsmin, fpsavg, fpsmax, cls.td_onesecondavgcount);
+                               }
+                               Z_Free(history);
+                               history = NULL;
                                Host_Quit_f();
+                       }
                }
                else
                        Host_Quit_f();