On 26/06/14 03:15, Josef Johansson wrote:
Hi,
On 25/06/14 00:27, Mark Kirkwood wrote:
Yes - same kind of findings, specifically:
- random read and write (e.g index access) faster than local disk
- sequential write (e.g batch inserts) similar or faster than local disk
- sequential read (e.g table scan) slower than local disk
Regarding sequential read, I think it was
https://software.intel.com/en-us/blogs/2013/11/20/measure-ceph-rbd-performance-in-a-quantitative-way-part-ii
that did some tuning with that.
Anyone tried to optimize it the way they did in the article?
In a similar vein, enabling striping in the rbd volume might be worth
experimenting with (just thought of it after reading 'How to improve
performance of ceph objcect storage cluster' thread).
Regards
Mark
_______________________________________________
ceph-users mailing list
ceph-users@lists.ceph.com
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
