I have 3 pools.
0 rbd,1 cephfs_data,2 cephfs_metadata cephfs_data has 1024 as a pg_num, total pg number is 2113 POOL_NAME USED OBJECTS CLONES COPIES MISSING_ON_PRIMARY UNFOUND DEGRADED RD_OPS RD WR_OPS WR cephfs_data 4000M 1000 0 2000 0 0 0 2 0 27443 44472M cephfs_metadata 11505k 24 0 48 0 0 0 38 8456k 7384 14719k rbd 0 0 0 0 0 0 0 0 0 0 0 total_objects 1024 total_used 30575M total_avail 55857G total_space 55887G From: David Turner [mailto:drakonst...@gmail.com] Sent: Tuesday, July 18, 2017 2:31 AM To: Gencer Genç <gen...@gencgiyen.com>; Patrick Donnelly <pdonn...@redhat.com> Cc: Ceph Users <ceph-users@lists.ceph.com> Subject: Re: [ceph-users] Yet another performance tuning for CephFS What are your pool settings? That can affect your read/write speeds as much as anything in the ceph.conf file. On Mon, Jul 17, 2017, 4:55 PM Gencer Genç <gen...@gencgiyen.com <mailto:gen...@gencgiyen.com> > wrote: I don't think so. Because I tried one thing a few minutes ago. I opened 4 ssh channel and run rsync command and copy bigfile to different targets in cephfs at the same time. Then i looked into network graphs and i see numbers up to 1.09 gb/s. But why single copy/rsync cannot exceed 200mb/s? What prevents it im really wonder this. Gencer. -----Original Message----- From: Patrick Donnelly [mailto:pdonn...@redhat.com <mailto:pdonn...@redhat.com> ] Sent: 17 Temmuz 2017 Pazartesi 23:21 To: gen...@gencgiyen.com <mailto:gen...@gencgiyen.com> Cc: Ceph Users <ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com> > Subject: Re: [ceph-users] Yet another performance tuning for CephFS On Mon, Jul 17, 2017 at 1:08 PM, <gen...@gencgiyen.com <mailto:gen...@gencgiyen.com> > wrote: > But lets try another. Lets say i have a file in my server which is 5GB. If i > do this: > > $ rsync ./bigfile /mnt/cephfs/targetfile --progress > > Then i see max. 200 mb/s. I think it is still slow :/ Is this an expected? Perhaps that is the bandwidth limit of your local device rsync is reading from? -- Patrick Donnelly _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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