The client doesn't hit any bottleneck. I also tried to run multiple clients on different host. There's no change.
2014-10-17 14:36 GMT+08:00 Alexandre DERUMIER <aderum...@odiso.com>: > Hi, > >>Thanks for the detailed information. but I am already using fio with rbd > engine. Almost 4 volumes can reach the peak. > > What is your cpu usage of fio-rbd ? > Myself I'm cpu bound on 8cores with around 40000iops read 4K. > > > > ----- Mail original ----- > > De: "Mark Wu" <wud...@gmail.com> > À: "Daniel Schwager" <daniel.schwa...@dtnet.de> > Cc: ceph-users@lists.ceph.com > Envoyé: Jeudi 16 Octobre 2014 19:19:17 > Objet: Re: [ceph-users] Performance doesn't scale well on a full ssd > cluster. > > > > Thanks for the detailed information. but I am already using fio with rbd > engine. Almost 4 volumes can reach the peak. > 2014 年 10 月 17 日 上午 1:03于 wud...@gmail.com 写道： > > > > Thanks for the detailed information. but I am already using fio with rbd > engine. Almost 4 volumes can reach the peak. > 2014 年 10 月 17 日 上午 12:55于 "Daniel Schwager" < daniel.schwa...@dtnet.de > >写道： > > <blockquote> > > > > Hi Mark, > > maybe you will check rbd-enabled fio > > http://telekomcloud.github.io/ceph/2014/02/26/ceph-performance-analysis_fio_rbd.html > > yum install ceph-devel > git clone git:// git.kernel.dk/fio.git > cd fio ; ./configure ; make -j5 ; make install > > Setup the number of jobs (==clients) inside fio config to > numjobs=8 > for simulating multiple clients. > > > regards > Danny > > > my test.fio: > > [global] > #logging > #write_iops_log=write_iops_log > #write_bw_log=write_bw_log > #write_lat_log=write_lat_log > ioengine=rbd > clientname=admin > pool=rbd > rbdname=myimage > invalidate=0 # mandatory > rw=randwrite > bs=1m > runtime=120 > iodepth=8 > numjobs=8 > > time_based > #direct=0 > > > [seq-write] > stonewall > rw=write > > #[seq-read] > #stonewall > #rw=read > > > </blockquote> > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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