Re: [mm/mremap] ecf8443e51: vm-scalability.throughput -29.4% regression
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From: Aneesh Kumar K.V <hidden>
Date: 2021-06-14 16:09:27
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linux-mm, lkml, oe-lkp
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 (local) Instead of pud lock we are now using rmap lock with mremap. Can you check with that series? -aneesh