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simplify nanobench --quiet / -q output

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This tries to cut things down to the very minimum you might want to know:

$ out/Release/nanobench --match nytimes --config 8888 gpu -q
Timer overhead: 29.6ns
! -> high variance, ? -> moderate variance
    micros       bench
   2479.05 !    desk_nytimes.skp_1_mpd    8888
   1313.92      desk_nytimes.skp_1_mpd    gpu
   3617.65      desk_nytimes.skp_1    8888
   1158.34      desk_nytimes.skp_1    gpu
   1368.99 !    keymobi_nytimes_com_.skp_1_mpd    8888
    393.40      keymobi_nytimes_com_.skp_1_mpd    gpu
   1179.68 !    keymobi_nytimes_com_.skp_1    8888
    342.74      keymobi_nytimes_com_.skp_1    gpu

All times are printed in microseconds, and high variance runs are marked.

BUG=skia:

Review URL: https://codereview.chromium.org/1493313003
This commit is contained in:
mtklein 2015-12-04 06:35:30 -08:00 committed by Commit bot
parent 1603e9310f
commit 66cfcffd5d
1 changed files with 9 additions and 5 deletions
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14
bench/nanobench.cpp
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@ -1131,7 +1131,8 @@ int nanobench_main() {
if (kAutoTuneLoops != FLAGS_loops) {
SkDebugf("Fixed number of loops; times would only be misleading so we won't print them.\n");
} else if (FLAGS_quiet) {
SkDebugf("median\tbench\tconfig\n");
SkDebugf("! -> high variance, ? -> moderate variance\n");
SkDebugf(" micros \tbench\n");
} else if (FLAGS_ms) {
SkDebugf("curr/maxrss\tloops\tmin\tmedian\tmean\tmax\tstddev\tsamples\tconfig\tbench\n");
} else {
@ -1241,10 +1242,13 @@ int nanobench_main() {
, bench->getUniqueName()
, config);
} else if (FLAGS_quiet) {
if (configs.count() == 1) {
config = ""; // Only print the config if we run the same bench on more than one.
}
SkDebugf("%s\t%s\t%s\n", HUMANIZE(stats.median), bench->getUniqueName(), config);
const char* mark = " ";
const double stddev_percent = 100 * sqrt(stats.var) / stats.mean;
if (stddev_percent > 5) mark = "?";
if (stddev_percent > 10) mark = "!";
SkDebugf("%10.2f %s\t%s\t%s\n",
stats.median*1e3, mark, bench->getUniqueName(), config);
} else {
const double stddev_percent = 100 * sqrt(stats.var) / stats.mean;
SkDebugf("%4d/%-4dMB\t%d\t%s\t%s\t%s\t%s\t%.0f%%\t%s\t%s\t%s\n"