On Wed, Aug 24, 2011 at 8:29 AM, Marcus Sorensen <shadowsor@xxxxxxxxx> wrote: > Just thought I'd share this basic testing I did, comparing cephfs 0.32 > on 3.1-rc1 to nfs as well as rbd to iscsi. I'm sure you guys see a lot > of this. Any feedback would be appreciated. > > The data is here: > > http://learnitwithme.com/wp-content/uploads/2011/08/ceph-nfs-iscsi-benchmarks.ods > > and the writeup is here: > > http://learnitwithme.com/?p=303 We see less of it than you'd think, actually. Thanks! To address a few things specifically Ceph is both the name of the project and of the POSIX-compliant filesystem. RADOS stands for Reliable Autonomous Distributed Object Store. Apparently we should publish this a bit more. :) Looks like most of the differences in your tests have to do with our relatively lousy read performance -- this is probably due to lousy readahead, which nobody's spent a lot of time optimizing as we focus on stability. Sage made some improvements a few weeks ago but I don't remember what version of stuff they ended up in. :) (Optimizing cross-server reads is hard!) -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
