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Lock contention #6

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ericbodden opened this issue Jan 25, 2014 · 2 comments
Open

Lock contention #6

ericbodden opened this issue Jan 25, 2014 · 2 comments
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@ericbodden

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@ericbodden
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Through tests on our new server I found that there is very high lock contention on the lock on the JumpFunctions table. This should be fixed. Somehow we need much more fine-grained locking.
@StevenArzt something to think about... not sure how well this work with your "fast solver"
@ghost ghost assigned ericbodden Jan 25, 2014
@StevenArzt
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I just committed a lock-free version of the JumpFunctions data structure to the FastSolver in FlowDroid's unstable branch. It seems to work on my 8-core machine, but it would be great to also test on something which offers more parallelism.

The "incoming" and "endSummary" data structures still lock, this needs more work.

@ericbodden
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Great. Please email me your SSL public key (best through PGP), then I will add it to the server's authorized_hosts.

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