Hi, >>> I just upgraded from Infernalis to Jewel and see an approximate 10x >>> latency increase. >>> >>> Quick facts: >>> - 3x replicated pool >>> - 4x 2x-"E5-2690 v3 @ 2.60GHz", 128GB RAM, 6x 1.6 TB Intel S3610 >>> SSDs, >>> - LSI3008 controller with up-to-date firmware and upstream driver, >>> and up-to-date firmware on SSDs. >>> - 40GbE (Mellanox, with up-to-date drivers & firmware) >>> - CentOS 7.2 Which kernel do you runs ? I found performance drop on the troughput (~40%) with kernel 4.4 compare of kernel 4.2. I didn't do the bench on latency but maybe the issue impact the latency too. -- Yoann Moulin EPFL IC-IT _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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