2013/4/18 Mark Nelson <mark.nelson@xxxxxxxxxxx>: > Well, even with RDMA you probably aren't going to get much more than > ~3.2GB/s (or at least that's what I saw on our production clusters at my > last job). There's encoding overhead so you can't get the full 40Gb/s. > > Beyond that, it's just another software layer with the associated > inefficiencies. Frankly I'm kind of amazed that rsockets can supposedly get > around 3GB/s. That's impressive performance imho. What about SDP ? It should be a transparent TCP replacement that will operative natively on an IB fabric with huge speed improvement and almost none overhead: http://bit.ly/14zQzME - Page 43 (4.3.1) _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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