[Webkit-unassigned] [Bug 84939] Optimize ASCII to UTF16 conversion using SSE2.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=84939





--- Comment #8 from James Robinson <jamesr at chromium.org>  2012-04-26 10:52:59 PST ---
(In reply to comment #2)
> I did test html5 spec page.
> http://dev.w3.org/html5/spec/single-page.html
> 
> There is about 20% improvement.
> 
> I tested 5 times before and after.
> Loading time is about 24s.
> 
> Test Machine : Intel® Xeon(R) CPU X5650 @ 2.67GHz × 6 
> Test WebKit : Qt WebKit Upstream
> 
> BEFORE
> :4.617188
> :4.814941
> :4.692627
> :4.772949
> :4.892578
> Avg. 4.7580566 ms
> 
> 
> AFTER
> :3.817139
> :3.701904
> :3.840820
> :3.384277
> :3.834961
> Avg. 3.7158202 ms

Something here doesn't add up - are you mixing up seconds and milliseconds here?  The sum of the BEFORE times do add up to 24.

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