On Fri, Sep 2, 2022 at 11:08 PM Yu Kuai <yukuai1@xxxxxxxxxxxxxxx> wrote: > > Hi, Song > > 在 2022/09/01 2:00, Song Liu 写道: > > On Mon, Aug 29, 2022 at 6:03 AM Yu Kuai <yukuai1@xxxxxxxxxxxxxxx> wrote: > >> > >> From: Yu Kuai <yukuai3@xxxxxxxxxx> > >> > >> 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. Sure, I will drop it from md-next. Song
