Messages in this thread | | | Subject | Re: [LKP] Re: [hugetlbfs] c0d0381ade: vm-scalability.throughput -33.4% regression | From | Xing Zhengjun <> | Date | Tue, 13 Oct 2020 09:59:08 +0800 |
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On 10/13/2020 1:40 AM, Mike Kravetz wrote: > On 10/11/20 10:29 PM, Xing Zhengjun wrote: >> Hi Mike, >> >> I re-test it in v5.9-rc8, the regression still existed. It is almost the same as 34ae204f1851. Do you have time to look at it? Thanks. >> > > Thank you for testing. > > Just curious, did you apply the series in this thread or just test v5.9-rc8? > If just testing v5.9-rc8, no changes to this code were added after 34ae204f1851, > so results being the same are expected. >
I just test v5.9-rc8. Where can I find the series patches you mentioned here? Or just wait for the next mainline release?
> There are some functional issues with this new hugetlb locking model that > are currently being worked. It is likely to result in significantly different > code. The performance issues discovered here will be taken into account with > the new code. However, as previously mentioned additional synchronization > is required for functional correctness. As a result, there will be some > regression in this code. >
-- Zhengjun Xing
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