From: Mark Nelson <mark.nelson@inktank.com>
To: Li Wang <liwang@ubuntukylin.com>
Cc: "ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>,
Sage Weil <sage@inktank.com>
Subject: Re: Performance results on inline data support
Date: Mon, 30 Sep 2013 07:39:37 -0500 [thread overview]
Message-ID: <52497109.8030206@inktank.com> (raw)
In-Reply-To: <5249377C.8030003@ubuntukylin.com>
On 09/30/2013 03:34 AM, Li Wang wrote:
> Hi,
> We did a performance test on inline data support, the Ceph cluster is
> composed of 1 MDS, 1 MON, 6 OSD on a HPC cluster. The program is simple,
> there are 1000 - 3000 files with each being 1KB. The program repeated
> the following processes on each file: open(), read(), close(). The total
> time is measured with/without inline data support. The results are as
> follows (seconds),
>
> #files without with
> 1000 17.3674 8.7186
> 2000 35.4848 17.7646
> 3000 53.2164 26.4374
Excellent job! Looks like this could make a big difference for certain
workloads. How much data can it store before it switches away from
inlining the data?
>
> Cheers,
> Li Wang
> --
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next prev parent reply other threads:[~2013-09-30 12:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-30 8:34 Performance results on inline data support Li Wang
2013-09-30 12:39 ` Mark Nelson [this message]
2013-10-01 14:21 ` Li Wang
2013-10-01 14:29 ` Mark Nelson
2013-10-01 14:40 ` Li Wang
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