Re: Provide more documentation for MDS performance tuning on large file systems

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Hi Dan & Janek,

On Sat, Dec 5, 2020 at 6:26 AM Dan van der Ster <dan@xxxxxxxxxxxxxx> wrote:
> My understanding is that the recall thresholds (see my list below)
> should be scaled proportionally. OTOH, I haven't played with the decay
> rates (and don't know if there's any significant value to tuning
> those).

I haven't gone through this thread yet but I want to note for those
reading that we do now have documentation (thanks for the frequent
pokes Janek!) for the recall configurations:

https://docs.ceph.com/en/latest/cephfs/cache-configuration/#mds-recall

Please let us know if it's missing information or if something could
be more clear.

-- 
Patrick Donnelly, Ph.D.
He / Him / His
Principal Software Engineer
Red Hat Sunnyvale, CA
GPG: 19F28A586F808C2402351B93C3301A3E258DD79D
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