Re: [ceph-users] performance decrease after continuous run

2016-07-27 Thread RDS
I have seen this and some of our big customers have also seen this. I was using 8TB HDDs and when running small tests using a fresh HDD setup, these tests resulted in very good performance. I then loaded the ceph cluster so each of the 8TB HDD used 4TB and reran the same tests. performance was c

Re: [ceph-users] performance decrease after continuous run

2016-07-21 Thread K K
Hello. Maybe deep-scrub starting at this time? Четверг, 21 июля 2016, 11:10 +05:00 от Christian Balzer : > > >Hello, > >On Wed, 20 Jul 2016 12:19:07 -0700 Kane Kim wrote: > >> Hello, >> >> I was running cosbench for some time and noticed sharp consistent >> performance decrease at some point.

Re: [ceph-users] performance decrease after continuous run

2016-07-20 Thread Christian Balzer
Hello, On Wed, 20 Jul 2016 12:19:07 -0700 Kane Kim wrote: > Hello, > > I was running cosbench for some time and noticed sharp consistent > performance decrease at some point. > > Image is here: http://take.ms/rorPw Unfortunately that statement and image is rather pointless without about a met

[ceph-users] performance decrease after continuous run

2016-07-20 Thread Kane Kim
Hello, I was running cosbench for some time and noticed sharp consistent performance decrease at some point. Image is here: http://take.ms/rorPw ___ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com