[Webkit-unassigned] [Bug 63531] Turn PreloadScanner implementation to a thread based solution

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=63531





--- Comment #5 from Adam Barth <abarth at webkit.org>  2011-06-28 14:17:24 PST ---
Another way this can improve performance is the following situation:

<script src="external-script-that-comes-back-quickly.js"></script>
... lots of stuff to scan ...

In this case, we'll be blocked inside the preload scanner when the script comes back from the network.  The time between that point in time and when the preload scanner yields will be wasted and add to overall latency.

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