> This also leads me to agree with you there's 'something wrong' with > the mclock scheduler. I was almost starting to suspect hardware issues > or something like that, I was at my wit's end. > > Could you update this thread with the exact quincy version by running: $ ceph versions and $ ceph config show-with-defaults osd.N | grep osd_mclock Please replace N with any valid OSD id. I suspect that the quincy version you are running on doesn't have the latest changes we made to the Reef upstream release. Recent changes introduced significant improvements to the mClock profiles and address slow recovery/backfill rates. The improvements to the mClock profiles should also help throttle snaptrim operations. Snaptrim operation with mClock currently uses a static cost as defined by osd_snap_trim_cost. There are improvements planned around this soon. For e.g., the cost must be dynamic and reflect the size of the object being trimmed. -Sridhar _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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