Hi All, I've just upgraded Ceph cluster from Firefly 0.80.8 (Redhat Ceph 1.2.3) to Hammer (Redhat Ceph 1.3) - Usage : radosgw with Apache 2.4.19 on MPM prefork mode I'm experiencing huge write performance degradation just after upgrade (Cosbench). Do you already run performance tests between Hammer and Firefly ? No problem with read performance that was amazing Sent from my iPhone _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com