Messages in this thread | | | Date | Mon, 20 May 2002 10:23:05 -0700 | From | "Martin J. Bligh" <> | Subject | Re: Bug with shared memory. |
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>> I've been benchmarking rmap 13 against mainline (2.4.19-pre7) >> and with the latest lock breakup changes performance now seems >> to be about equivalent to mainline (for kernel compile on NUMA-Q). >> Those changes reduced system time from 650s to 160s. The only > > How much are you swapping in your workload? (as said the fast paths are > hurted a little so it's expected that it's almost as fast as mainline > with a kernel compile, similar to the fact we also add anon pages to the > lru list). I think you're only exercising the fast paths in your > workload, not the memory balancing that is the whole point of the change.
No swapping. We fixed the horrendous locking problem we were seeing, but this was only one test - obviously others are needed. But I think we're in agreement that it's time to give it a beating and see what happens ;-)
M.
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