From: Mark Nelson <mnelson@redhat.com>
To: Stefan Priebe <s.priebe@profihost.ag>,
"ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>
Subject: Re: speed decrease since firefly,giant,hammer the 2nd try
Date: Tue, 10 Feb 2015 15:38:07 -0600 [thread overview]
Message-ID: <54DA7A3F.6070009@redhat.com> (raw)
In-Reply-To: <54DA7404.4060201@profihost.ag>
On 02/10/2015 03:11 PM, Stefan Priebe wrote:
>
> mhm i installed librbd1-dbg and librados2-dbg - but the output still
> looks useless to me. Should i upload it somewhere?
Meh, if it's all just symbols it's probably not that helpful.
I've summarized your results here:
1 concurrent 4k write (libaio, direct=1, iodepth=1)
IOPS Latency
wb on wb off wb on wb off
dumpling 10870 536 ~100us ~2ms
firefly 10350 525 ~100us ~2ms
So in single op tests dumpling and firefly are far closer. Now let's
see each of these cases with iodepth=32 (still 1 thread for now).
Mark
>
> Stefan
> --
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next prev parent reply other threads:[~2015-02-10 21:38 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-10 18:55 speed decrease since firefly,giant,hammer the 2nd try Stefan Priebe
2015-02-10 19:05 ` Gregory Farnum
2015-02-10 19:12 ` Stefan Priebe
2015-02-10 19:10 ` Mark Nelson
2015-02-10 19:13 ` Stefan Priebe
2015-02-10 19:40 ` Mark Nelson
2015-02-10 20:24 ` Stefan Priebe
2015-02-10 20:36 ` Mark Nelson
2015-02-10 21:11 ` Stefan Priebe
2015-02-10 21:38 ` Mark Nelson [this message]
2015-02-10 22:18 ` Stefan Priebe
2015-02-11 4:45 ` Mark Nelson
2015-02-11 5:42 ` Stefan Priebe
[not found] ` <1032317804.358821.1423634390142.JavaMail.zimbra@oxygem.tv>
2015-02-11 5:59 ` Alexandre DERUMIER
2015-02-15 18:40 ` Stefan Priebe
[not found] ` <1880785650.892634.1424077856500.JavaMail.zimbra@oxygem.tv>
2015-02-16 9:11 ` Alexandre DERUMIER
2015-02-16 14:50 ` Stefan Priebe - Profihost AG
2015-02-16 15:35 ` Mark Nelson
2015-02-16 15:36 ` Alexandre DERUMIER
2015-02-16 19:10 ` Stefan Priebe
[not found] ` <198700848.1004998.1424124086231.JavaMail.zimbra@oxygem.tv>
2015-02-16 22:01 ` Alexandre DERUMIER
[not found] ` <1760409866.980984.1424105112443.JavaMail.zimbra@oxygem.tv>
2015-02-16 16:45 ` Alexandre DERUMIER
2015-02-16 19:40 ` Stefan Priebe
2015-02-16 21:22 ` Stefan Priebe
[not found] ` <2015376321.1005004.1424124122884.JavaMail.zimbra@oxygem.tv>
2015-02-16 22:02 ` Alexandre DERUMIER
2015-02-16 22:08 ` Stefan Priebe - Profihost AG
[not found] ` <1975903570.1005549.1424125095286.JavaMail.zimbra@oxygem.tv>
2015-02-16 22:18 ` Alexandre DERUMIER
2015-02-17 9:15 ` Stefan Priebe - Profihost AG
[not found] ` <1999473015.1036573.1424165503094.JavaMail.zimbra@oxygem.tv>
2015-02-17 9:31 ` Alexandre DERUMIER
[not found] ` <764258391.358931.1423634637318.JavaMail.zimbra@oxygem.tv>
2015-02-11 6:04 ` Alexandre DERUMIER
[not found] ` <1971513819.362434.1423640637237.JavaMail.zimbra@oxygem.tv>
2015-02-11 7:44 ` Alexandre DERUMIER
2015-02-11 8:32 ` Stefan Priebe - Profihost AG
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