98b47ebb33
It's nice to have a quick way to get stable results on the local
machine for the classic d8 benchmarks. CSuite revitalizes an
old tool called BSuite which offers multiple averaged runs,
and a nice ascii display of results.
Sample usage:
./csuite.py octane baseline ~/src/v8/out/d8
./csuite.py octane compare ~/src/v8/out-mine/d8
benchmark: score | master | % |
===================================================+==========+========+
Richards: 26201.0 | 26568.0 | -1.4 |
DeltaBlue: 55744.0 | 58309.0 | -4.4 |
Crypto: 31831.0 | 31815.0 | |
RayTrace: 73481.0 | 73185.0 | 0.4 |
............<snip>............................
Octane: 36388.0 | 35741.0 | 1.8 |
---------------------------------------------------+----------+--------+
See README.md for more documentation.
Change-Id: I182490506ca07fab1240bd485bd1d7a8920db893
Reviewed-on: https://chromium-review.googlesource.com/c/1387487
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58434}
1.5 KiB
CSuite: Local benchmarking help for V8 performance analysis
CSuite helps you make N averaged runs of a benchmark, then compare with a different binary and/or different flags. It knows about the "classic" benchmarks of SunSpider, Kraken and Octane, which are still useful for investigating peak performance scenarios. It offers a default number of runs, by default they are:
- SunSpider - 100 runs
- Kraken - 80 runs
- Octane - 10 runs
Usage
Say you want to see how much optimization buys you:
./csuite.py kraken baseline ~/src/v8/out/d8 -x="--noopt"
./csuite.py kraken compare ~/src/v8/out/d8
Suppose you are comparing two binaries, and want a quick look at results. Normally, Octane should have about 10 runs, but 3 will only take a few minutes:
./csuite.py -r 3 octane baseline ~/src/v8/out-master/d8
./csuite.py -r 3 octane compare ~/src/v8/out-mine/d8
You can run from any place:
../../somewhere-strange/csuite.py sunspider baseline ./d8
../../somewhere-strange/csuite.py sunspider compare ./d8-better
Note that all output files are created in the directory where you run
from. A _benchmark_runner_data directory will be created to store run
output, and a _results directory as well for scores.
For more detailed documentation, see:
./csuite.py --help
Output from the runners is captured into files and cached, so you can cancel and resume multi-hour benchmark runs with minimal loss of data/time. The -f flag forces re-running even if these cached files still exist.