Hi All, I've recently put together some articles around some of the performance testing I have been doing.
The first explores the high level theory behind latency in a Ceph infrastructure and what we have managed to achieve. http://www.sys-pro.co.uk/ceph-write-latency/ The second explores some of results we got from trying to work out how much CPU a Ceph IO uses. http://www.sys-pro.co.uk/how-many-mhz-does-a-ceph-io-need/ I hope they are of interest to someone. I'm currently working on a couple more explaining the choices behind the hardware that got us 700us write latency and what we finally built. Nick _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
