Messages in this thread | | | Date | Thu, 09 Dec 2004 21:29:29 +1100 | From | Nick Piggin <> | Subject | Re: Kernel 2.6.9 Multiple Page Allocation Failures |
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Lukas Hejtmanek wrote:
>On Thu, Dec 09, 2004 at 07:52:36PM +1100, Nick Piggin wrote: > >>>32MB seems to be ok but it will require further testing to be sure. >>> >>> >>> >>Seems pretty excessive - although maybe your increased socket buffers and >>txqueuelen are contributing? >> > >Yes they are. Without increasing it is just ok. But increasing is ok in 2.6.6. > >
Perhaps they weren't working properly in 2.6.6, or something else is buggy in 2.6.9. 16MB in 2.6.9 should definitely give a a larger atomic reserve than 900K in 2.6.6... so if it isn't an issue with network buffer behaviour, then the only other possibility AFAIKS is that page reclaim latency or efficiency has got much worse. This would be unlikely as it should cause problems and regressions on other workloads.
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