Hallo Nick, very interesting reading, thanks!What are you using for measuring performance? Base "fio" or something else? Would you be willing to attach to the article the relevant part of the benchmark tool configuration?
Thanks!
Fulvio
-------- Original Message --------
Subject: [ceph-users] Ceph Blog Articles
From: Nick Fisk <n...@fisk.me.uk>
To: 'Ceph Users' <ceph-users@lists.ceph.com>
Date: 11/11/2016 08:33 PM
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
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