On 12/11/2014 11:39 AM, ano nym wrote: > > there is a ceph pool on a hp dl360g5 with 25 sas 10k (sda-sdy) on a > msa70 which gives me about 600 MB/s continous write speed with rados > write bench. tgt on the server with rbd backend uses this pool. mounting > local(host) with iscsiadm, sdz is the virtual iscsi device. As you can > see, sdz max out with 100%util at ~55MB/s when writing to it. > > I know that tgt-rbd is more a proof-of-concept then production-ready. > > Anyway, is someone using it and/or are there any hints to speed it up? >
Increasing the tgt nr_threads setting helps. Try 64 or 128. _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
