On Fri, Mar 6, 2015 at 7:27 PM, Nick Fisk <nick@xxxxxxxxxx> wrote: > Hi Somnath, > > I think you hit the nail on the head, setting librbd to not use TCP_NODELAY shows the same behaviour as with krbd. That's why I asked about the kernel version. TCP_NODELAY is enabled by default since 4.0-rc1, so if you are up for it you can grab 4.0-rc2 and try it out. Thanks, Ilya _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com