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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - LLInt should support other types of prototype GetById caching."
href="https://bugs.webkit.org/show_bug.cgi?id=158083#c34">Comment # 34</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - LLInt should support other types of prototype GetById caching."
href="https://bugs.webkit.org/show_bug.cgi?id=158083">bug 158083</a>
from <span class="vcard"><a class="email" href="mailto:sbarati@apple.com" title="Saam Barati <sbarati@apple.com>"> <span class="fn">Saam Barati</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=158083#c32">comment #32</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=280573" name="attach_280573" title="Cached Accessor's benchmark output">attachment 280573</a> <a href="attachment.cgi?id=280573&action=edit" title="Cached Accessor's benchmark output">[details]</a></span>
> Cached Accessor's benchmark output</span >
You can compare two VMs directly using the `run-jsc-benchmarks` script. This will give you nice output showing the differences so you don't have to manually compare the results.
Like so:
`run-jsc-benchmarks baseline:<pathToBaslineBuild>/jsc changes:<pathToChanges>/jsc`
You can run individual benchmarks like (this runs only Kraken):
`run-jsc-benchmarks --kraken baseline:<pathToBaslineBuild>/jsc changes:<pathToChanges>/jsc`
You can make run-jsc-benchmarks run more iterations which is helpful for noisy benchmarks. The default is 4 runs. This will make kraken run for 10 runs:
`run-jsc-benchmarks --kraken --outer 10 baseline:<pathToBaslineBuild>/jsc changes:<pathToChanges>/jsc`
You can also provide a regex to specify sub tests inside a benchmark suite. This will run just ai-astar and audio-fft from kraken.
`run-jsc-benchmarks --kraken --benchmarks "ai-astar|audio-fft" baseline:<pathToBaslineBuild>/jsc changes:<pathToChanges>/jsc`
Also, you should get yourself an Octane and Kraken. They can be found on github I think. We don't bundle those benchmarks inside WebKit itself, but run-jsc-benchmarks
will look for the following the following JSON file:
`~/.run-jsc-benchmarks`
Which specifies paths to where Octane/Kraken can be found.
My `~/.run-jsc-benchmarks` looks like:
```
{
"OctanePath": "/Volumes/Data/jsc-benchmarks/octane",
"KrakenPath": "/Volumes/Data/jsc-benchmarks/kraken/tests/kraken-1.1"
}
```</pre>
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