[Webkit-unassigned] [Bug 37643] new-run-webkit-tests has much higher startup latency than run-webkit-tests

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=37643





--- Comment #3 from Eric Seidel <eric at webkit.org>  2010-04-19 01:45:40 PST ---
I ran:
python -m cProfile new-run-webkit-tests

and aborted it about 2 minutes in (20% through the tests on my machine).

We spent a whopping 45 SECONDS in time.sleep:
     3011   45.569    0.015   45.569    0.015 {time.sleep}

And 3 seconds making some 100k stat calls:
   109687    3.603    0.000    3.603    0.000 {posix.stat}

50 seconds were spent reading files:
     5441   50.576    0.009   50.576    0.009 {method 'read' of 'file' objects}

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