On 19/7/19 8:43 pm, Marc Roos wrote: > > Maybe a bit of topic, just curious what speeds did you get previously? > Depending on how you test your native drive of 5400rpm, the performance > could be similar. 4k random read of my 7200rpm/5400 rpm results in > ~60iops at 260kB/s. Well, to be honest I never formally tested the performance prior to the move to Bluestore. It was working "acceptably" for my needs, thus I never had a reason to test it. It was never a speed demon, but it did well enough for my needs. Had Filestore on BTRFS remained an option in Ceph v12, I'd have stayed that way. > I also wonder why filestore could be that much faster, is this not > something else? Maybe some dangerous caching method was on? My understanding is that Bluestore does not benefit from the Linux kernel filesystem cache. On paper, Bluestore *should* be faster, but it's hard to know for sure. Maybe I should try migrating back to Filestore and see if that improves things? -- Stuart Longland (aka Redhatter, VK4MSL) I haven't lost my mind... ...it's backed up on a tape somewhere. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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