Messages in this thread | | | Subject | Re: [PATCH -next 0/3] md/raid10: reduce lock contention for io | From | Yu Kuai <> | Date | Sat, 3 Sep 2022 14:08:21 +0800 |
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Hi, Song
在 2022/09/01 2:00, Song Liu 写道: > On Mon, Aug 29, 2022 at 6:03 AM Yu Kuai <yukuai1@huaweicloud.com> wrote: >> >> From: Yu Kuai <yukuai3@huawei.com> >> >> patch 1 is a small problem found by code review. >> patch 2 avoid holding resync_lock in fast path. >> patch 3 avoid holding lock in wake_up() in fast path. >> >> Test environment: >> >> Architecture: aarch64 >> Cpu: Huawei KUNPENG 920, there are four numa nodes >> >> Raid10 initialize: >> mdadm --create /dev/md0 --level 10 --bitmap none --raid-devices 4 /dev/nvme0n1 /dev/nvme1n1 /dev/nvme2n1 /dev/nvme3n1 >> >> Test cmd: >> fio -name=0 -ioengine=libaio -direct=1 -group_reporting=1 -randseed=2022 -rwmixread=70 -refill_buffers -filename=/dev/md0 -numjobs=16 -runtime=60s -bs=4k -iodepth=256 -rw=randread >> >> Test result: >> before this patchset: 2.9 GiB/s >> after this patchset: 6.6 Gib/s > > Nice work! Applied to md-next.
Can you drop this version? There are something to improve. I can send a new version.
Thanks, Kuai > > Thanks, > Song > . >
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