From: Stefan Priebe <s.priebe@profihost.ag>
To: Alexandre DERUMIER <aderumier@odiso.com>
Cc: Mark Nelson <mark.nelson@inktank.com>,
Gregory Farnum <greg@inktank.com>,
ceph-devel@vger.kernel.org
Subject: Re: OSD Hardware questions
Date: Thu, 28 Jun 2012 18:01:52 +0200 [thread overview]
Message-ID: <4FEC7FF0.2010308@profihost.ag> (raw)
In-Reply-To: <5d5b400b-c2b4-4bce-9231-b412ce1aff03@mailpro>
Am 28.06.2012 17:18, schrieb Alexandre DERUMIER:
> Hi,
> maybe it can help, I'm doing same tests that stefan,
> random write with 4K with 3 nodes with 5 osds (with 15K drives)
> fio --filename=[disk] --direct=1 --rw=randwrite --bs=4k --size=100M --numjobs=50 --runtime=30 --group_reporting --name=file1
>
> I can achieve 5500io/s (disks are not at 100%)
>
> cpu is around 30%idle ( 8 cores E5420 @ 2.50GHz)
mine is 25-30% idle? May be this is the limit? So our osds are the problem?
Stefan
next prev parent reply other threads:[~2012-06-28 16:01 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-27 13:04 OSD Hardware questions Stefan Priebe - Profihost AG
2012-06-27 13:55 ` Mark Nelson
2012-06-27 14:55 ` Jim Schutt
2012-06-27 15:19 ` Stefan Priebe
2012-06-27 17:23 ` Jim Schutt
2012-06-27 17:54 ` Stefan Priebe
2012-06-27 18:38 ` Jim Schutt
2012-06-27 18:48 ` Stefan Priebe
2012-06-27 19:10 ` Jim Schutt
2012-06-27 19:14 ` Jim Schutt
2012-06-27 15:53 ` Mark Nelson
2012-06-27 17:59 ` Jim Schutt
2012-06-27 15:13 ` Stefan Priebe
[not found] ` <CAPYLRzj916kW=KLy3dMTVPJRoNtPMP_Ejz+YAxRUJ5jZc+HeMg@mail.gmail.com>
2012-06-27 15:28 ` Stefan Priebe
2012-06-27 16:00 ` Mark Nelson
2012-06-28 13:21 ` Stefan Priebe - Profihost AG
2012-06-28 14:38 ` Mark Nelson
2012-06-28 15:18 ` Alexandre DERUMIER
2012-06-28 15:33 ` Sage Weil
2012-06-28 15:45 ` Alexandre DERUMIER
2012-06-28 15:48 ` Jim Schutt
2012-06-28 21:25 ` Stefan Priebe
2012-06-29 11:37 ` Mark Nelson
2012-06-29 12:35 ` Stefan Priebe - Profihost AG
2012-06-28 16:01 ` Stefan Priebe [this message]
2012-06-28 16:00 ` Stefan Priebe
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