[Webkit-unassigned] [Bug 133876] REGRESSION(r169703): Memory usage (JSHeap) on all performance tests got ~50% worse

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=133876


Geoffrey Garen <ggaren at apple.com> changed:

           What    |Removed                     |Added
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                 CC|                            |ggaren at apple.com




--- Comment #4 from Geoffrey Garen <ggaren at apple.com>  2014-06-18 10:53:21 PST ---
It looks like the absolute size of the regression is 60kB - 100kB. Is that right? If so, I think those high percentages just indicate that the test doesn't use much JS memory -- not that something major has changed.

In a test that does use a lot of JS memory, I would expect the memory impact of <http://trac.webkit.org/changeset/169703> to be much lower, percentage-wise, since one prototype is typically used by many client objects, making prototype memory a small fraction of heap memory.

I think we can accept this delta.

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