Messages in this thread | | | Subject | Re: [mm/mremap] ecf8443e51: vm-scalability.throughput -29.4% regression | From | "Aneesh Kumar K.V" <> | Date | Mon, 14 Jun 2021 21:38:44 +0530 |
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On 6/14/21 8:25 PM, kernel test robot wrote: > > > Greeting, > > FYI, we noticed a -29.4% regression of vm-scalability.throughput due to commit: > > > commit: ecf8443e51a862b261313c2319ab4e4aed9e6b7e ("[PATCH v7 02/11] mm/mremap: Fix race between MOVE_PUD mremap and pageout") > url: https://github.com/0day-ci/linux/commits/Aneesh-Kumar-K-V/Speedup-mremap-on-ppc64/20210607-135424 > base: https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git next > >
We dropped that approach and is now using https://lore.kernel.org/linux-mm/20210610083549.386085-1-aneesh.kumar@linux.ibm.com
Instead of pud lock we are now using rmap lock with mremap.
Can you check with that series?
-aneesh
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