Le 13/08/2018 à 16:29, Jason Dillaman a écrit : > > > For such a small benchmark (2 GiB), I wouldn't be surprised if you are > not just seeing the Filestore-backed OSDs hitting the page cache for > the reads whereas the Bluestore-backed OSDs need to actually hit the > disk. Are the two clusters similar in terms of the numbers of > HDD-backed OSDs? >
I looked at iostat on both cluster when running fio and yes, on new cluster I see disks reads, but not with old cluster, everything comes from page cache. So is there a way to simulate page cache for bluestore, or on rbd side?
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