[Webkit-unassigned] [Bug 158083] LLInt should support other types of prototype GetById caching.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=158083

--- Comment #34 from Saam Barati <sbarati at apple.com> ---
(In reply to comment #32)
> Created attachment 280573 [details]
> Cached Accessor's benchmark output

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"
}
```

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