[Webkit-unassigned] [Bug 32677] [Qt] Avoid QThread overhead on Unix platforms

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=32677





--- Comment #3 from Benjamin Poulain <benjamin.poulain at nokia.com>  2009-12-18 02:51:21 PST ---
(In reply to comment #2)
> it seems a nice change.
> 
> benjamin , have you measured the gains ?

Here is is, it is for a reduced cycler test on a N900:

With pthread:
     79,889 msec per iteration (total: 79889, iterations: 1)
     79,288 msec per iteration (total: 79288, iterations: 1)
     78,139 msec per iteration (total: 78139, iterations: 1)
     Avg: 79105

with QThread:
     80,960 msec per iteration (total: 80960, iterations: 1)
     80,543 msec per iteration (total: 80543, iterations: 1)
     81,649 msec per iteration (total: 81649, iterations: 1)
     Avg: 81050

Time spent: ~0.97%

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