More writes on filestore than on journal ?

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Hi,

I'm still trying to find why there is much more write operations on
filestore since Emperor/Firefly than from Dumpling.

So, I add monitoring of all perf counters values from OSD.

>From what I see : «filestore.ops» reports an average of 78 operations
per seconds. But, block device monitoring reports an average of 113
operations per seconds (+45%).
please thoses 2 graphs :
- https://daevel.fr/img/firefly/osd-70.filestore-ops.png
- https://daevel.fr/img/firefly/osd-70.sda-ops.png

Do you see what can explain this difference ? (this OSD use XFS)

Thanks,
Olivier

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