Hi, On 05/05/2015 03:37 PM, Межов Игорь Александрович wrote: > Hi! > > Sorry, I've found the reason of this strange results - rbd cache was enabled > in local ceph.conf on client node, I used for testing. I remove it from config > and get more sane results. > > On all tests direct=1 iodepth=32 ioengine=aio fio=seqwr bs=4k sync=0 > cache=wb -> iops=31700,bw=126Mb/s, 75% lat < 10msec > cache=no -> iops=1695, bw=7Mb/s, 95% lat < 28msec > > So, I've got 20x improvement on seq writes. Interesting, can you explain this please ? Which ceph.conf do you talk about ? The one on host server (on which vm is running) ? _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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