[Webkit-unassigned] [Bug 29092] Performance slow when loading a large text html file on Symbian platform

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=29092





--- Comment #9 from Chang Shu <Chang.Shu at nokia.com>  2009-09-16 10:03:46 PDT ---
(In reply to comment #8)
> I conjecture that supplying the entire remainder of the data to the iterator
> will have no effect on performance. I wonder if trimming the beginning has
> any significant effect. 

It depends on lower level implementation. On Qt, calling
characterBreakIterator() is very heavy with large texts. This is the major
improvement with the patch.

> I would think that the dominant part of this patch is not
> instantiating the iterator and not calling it when end >= dataLength.

This saves time of processing the last piece of the text. However, it is not
significant based on the test on a platform with Qt+Symbian.

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