[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 #1 from Dirk Pranke <dpranke at chromium.org>  2010-04-16 16:16:14 PST ---
wow, that's slow. I wonder if there was something wrong with your
configuration. Were all your files on a local filesystem? I've only ever seen
that kind of slowness on a windows machine running on top of an SMB share.

It is true that new-run-webkit-tests is slower than run-webkit-tests for a
couple of reasons. The first has to do with spawning off multiple threads,
which obviously takes time. The second is that there is a certain amount of
"all at once" processing that new-run-webkit-tests does to compute statistics
at the start. I have been tempted to fix the latter but I've never seen that
it's been a real problem.

Either way, your numbers are an order of magnitude slower than I would expect,
so we should figure out what's going on. If you could post the log output from
--verbose from the beginning to when testing started that would be a big help.

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