[Webkit-unassigned] [Bug 97510] Some perf. tests have variances that differ greatly between runs

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=97510





--- Comment #13 from Ryosuke Niwa <rniwa at webkit.org>  2012-09-24 19:53:23 PST ---
(In reply to comment #12)
> General comment: In my experience, an average value is strongly affected by a couple of outliers. How about calculating the average value after discarding one or two outliers (i.e. discarding one or two largest values)? Or how about using a median instead of an average?

You can take a look at each graph (click on the test to show the graph, and then click on the graph to adjust the y-axis), but I don't think discarding one or two extrema or using median wouldn't help here because some of these tests have bi-modal distributions.

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