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Committer:
Max Kanat-Alexander
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Date:
2010-01-13 23:17:57 UTC
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mto:
This revision was merged to the branch mainline in
revision
400.
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Revision ID:
mkanat@everythingsolved.com-20100113231757-82hsrvn36andz77h
Add locks so that we only build a revision graph cache once simultaneously
per branch. Under high-load situations, loggerhead was building the revision
graph cache for one branch multiple times simultaneously, causing such a
slowdown that it would appear to have hung.