Thanks Mark , for a superb explanation . This is indeed very useful.

****************************************************************
Karan Singh 
Systems Specialist , Storage Platforms
CSC - IT Center for Science,
Keilaranta 14, P. O. Box 405, FIN-02101 Espoo, Finland
mobile: +358 503 812758
tel. +358 9 4572001
fax +358 9 4572302
http://www.csc.fi/
****************************************************************

> On 17 Feb 2015, at 22:16, Stephen Hindle <shin...@llnw.com> wrote:
> 
> I was wondering what the 'CBT' tool is ?  Google is useless for that 
> acronym...
> 
> Thanks!
> Steve
> 
> On Tue, Feb 17, 2015 at 10:37 AM, Mark Nelson <mnel...@redhat.com> wrote:
>> Hi All,
>> 
>> I wrote up a short document describing some tests I ran recently to look at
>> how SSD backed OSD performance has changed across our LTS releases. This is
>> just looking at RADOS performance and not RBD or RGW.  It also doesn't offer
>> any real explanations regarding the results.  It's just a first high level
>> step toward understanding some of the behaviors folks on the mailing list
>> have reported over the last couple of releases.  I hope you find it useful.
>> 
>> Mark
>> 
>> _______________________________________________
>> ceph-users mailing list
>> ceph-users@lists.ceph.com
>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>> 
> 
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