[Webkit-unassigned] [Bug 48374] run-webkit-tests takes 20 minutes longer on a Debug build than on a Release build on Windows and Leopard

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=48374





--- Comment #9 from Adam Roben (:aroben) <aroben at apple.com>  2011-03-21 15:37:43 PST ---
I did some sunspider comparisons:

64-bit Debug -> 64-bit Debug with assertions disabled: 1.47x as fast
64-bit Debug -> 64-bit Release with assertions enabled: 5.76x as fast

The vast majority of the slowdown in Debug mode seems to come from having compiler optimizations turned off.

We could use a Release build with assertions enabled to speed up test times on the bots. Maybe that would be just as good as using a Debug build? Some possible downsides:

1) We wouldn't be testing with the system malloc
2) Backtraces from the bots might be harder to interpret

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