[Webkit-unassigned] [Bug 42756] JIT requires VM overcommit (particularly on x86-64), Linux does not by default support this without swap?

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Jan 12 15:02:13 PST 2011


https://bugs.webkit.org/show_bug.cgi?id=42756


Xan Lopez <xan.lopez at gmail.com> changed:

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--- Comment #33 from Xan Lopez <xan.lopez at gmail.com>  2011-01-12 15:02:11 PST ---
(In reply to comment #32)
> (From update of attachment 78732 [details])
> i think 32mb will be far too little to be useful -- a simple test would be for you to just try using midori with a jsc build with vmPoolSizeGeneric == 32mb

I did try running a browser with those values for some minutes and things didn't explode right away, but you are right that they are fairly conservative. Do you want to make them bigger in general or do you want a triplet like generic/conservative desktop/conservative embedded. If the answer is the latter,  how will we know which one to fallback in linux when overcommit is not on?

> 
> Also i think the logic to determine what size the allocation should be would be better in a separate function.

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