From: Hannes Reinecke <hare@suse.de>
To: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
Cc: Mark Nelson <mark.nelson@inktank.com>,
"ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>
Subject: Re: Infiniband 40GB
Date: Mon, 04 Jun 2012 09:39:48 +0200 [thread overview]
Message-ID: <4FCC6644.8010106@suse.de> (raw)
In-Reply-To: <4FCC6328.3020606@profihost.ag>
On 06/04/2012 09:26 AM, Stefan Priebe - Profihost AG wrote:
> Am 04.06.2012 08:22, schrieb Hannes Reinecke:
>> Hehe.
>> Good luck with that.
>>
>> We've tried on 10GigE with _disastrous_ results.
>> Up to the point where 1GigE was actually _faster_.
>
> So you mean you've tried 10GBE or 10GB ipoib with Infiniband?
>
>> - osd-server is calling 'fsync' on each and every write request.
>> Does wonders for performance ...
> Already talked to the ceph guys?
>
Still not there yet. Still need to figure out the exact details;
performance regressions are notoriously hard to track.
But yeah, rumours have it we are in contact.
Project management on our side could be improved, though ;)
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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next prev parent reply other threads:[~2012-06-04 7:39 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-03 8:10 Infiniband 40GB Stefan Priebe
2012-06-03 12:56 ` Mark Nelson
2012-06-04 6:22 ` Hannes Reinecke
2012-06-04 7:26 ` Stefan Priebe - Profihost AG
2012-06-04 7:39 ` Hannes Reinecke [this message]
2012-06-04 7:53 ` Stefan Priebe - Profihost AG
2012-06-04 8:02 ` Hannes Reinecke
2012-06-04 8:23 ` Stefan Majer
2012-06-04 9:21 ` Yann Dupont
2012-06-04 9:35 ` Alexandre DERUMIER
2012-06-04 9:53 ` Yann Dupont
2012-06-04 9:47 ` Amon Ott
2012-06-04 9:58 ` Yann Dupont
2012-06-04 11:40 ` Alexandre DERUMIER
2012-06-04 12:59 ` Mark Nelson
2012-06-04 13:07 ` Alexandre DERUMIER
2012-06-04 13:28 ` Mark Nelson
2012-06-04 15:11 ` Gregory Farnum
2012-06-04 15:34 ` Mark Nelson
2012-06-06 16:05 ` Alexandre DERUMIER
2012-06-06 16:43 ` Mark Nelson
2012-06-04 15:42 ` Stefan Priebe
2012-06-05 7:08 ` Amon Ott
2012-06-05 7:46 ` Stefan Priebe - Profihost AG
2012-06-06 10:48 ` Stefan Priebe - Profihost AG
2012-06-06 10:57 ` Amon Ott
2012-06-06 11:02 ` Stefan Priebe - Profihost AG
2012-06-07 11:33 ` Amon Ott
2012-06-07 12:44 ` Stefan Priebe - Profihost AG
2012-06-05 8:54 ` Stefan Priebe - Profihost AG
2012-06-04 12:28 ` Mark Nelson
2012-06-04 12:34 ` Tomasz Paszkowski
2012-06-04 12:40 ` Mark Nelson
[not found] <a81f3855-1c7d-447b-9bbf-6a891e372909@mailpro>
2012-06-07 3:31 ` Alexandre DERUMIER
2012-06-07 11:25 ` Alexandre DERUMIER
2012-06-07 17:15 ` Mark Nelson
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