On Thu, Oct 24, 2013 at 6:31 AM, Guang Yang <yguang11@xxxxxxxxx> wrote: > Hi Mark, Greg and Kyle, > Sorry to response this late, and thanks for providing the directions for me > to look at. > > We have exact the same setup for OSD, pool replica (and even I tried to > create the same number of PGs within the small cluster), however, I can > still reproduce this constantly. > > This is the command I run: > $ rados bench -p perf_40k_PG -b 5000 -t 3 --show-time 10 write 3 seconds is not going to give you an accurate picture of much of anything. :) The difference is probably due to caching effects on the data structure lookups. -Greg Software Engineer #42 @ http://inktank.com | http://ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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