Optimal or recommended threads values

[Andrei Mikhailovsky <andrei@xxxxxxxxxx>]

Hello guys,

Could some one comment on the optimal or recommended values of various threads values in ceph.conf?

At the moment I have the following settings:

filestore_op_threads = 8
osd_disk_threads = 8
osd_op_threads = 8
filestore_merge_threshold = 40
filestore_split_multiple = 8

Are these reasonable for a small cluster made of 7.2K SAS disks with ssd journals with a ratio of 4:1?

What are the settings that other people are using?

Thanks

Andrei

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