From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
To: Alexandre DERUMIER <aderumier@odiso.com>
Cc: Sage Weil <sage@inktank.com>,
ceph-devel@vger.kernel.org, Mark Nelson <mark.nelson@inktank.com>
Subject: Re: speedup ceph / scaling / find the bottleneck
Date: Mon, 02 Jul 2012 08:12:59 +0200 [thread overview]
Message-ID: <4FF13BEB.8080906@profihost.ag> (raw)
In-Reply-To: <59beaaec-5f12-4fb2-9c03-69f41849e89e@mailpro>
Am 02.07.2012 07:02, schrieb Alexandre DERUMIER:
> Hi,
> my 2cent,
> maybe with lower range (like 100MB) of random io,
> you have more chance to aggregate them in 4MB block ?
Yes maybe. If you have just a range of 100MB the chance you'll hit the
same 4MB block again is very high.
@sage / mark
How does the aggregation work? Does it work 4MB blockwise or target node
based?
Greets
Stefan
next prev parent reply other threads:[~2012-07-02 6:13 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-29 10:46 speedup ceph / scaling / find the bottleneck Stefan Priebe - Profihost AG
2012-06-29 11:32 ` Alexandre DERUMIER
2012-06-29 11:49 ` Mark Nelson
2012-06-29 13:02 ` Stefan Priebe - Profihost AG
2012-06-29 13:11 ` Stefan Priebe - Profihost AG
2012-06-29 13:16 ` Stefan Priebe - Profihost AG
2012-06-29 13:22 ` Stefan Priebe - Profihost AG
2012-06-29 15:28 ` Sage Weil
2012-06-29 21:18 ` Stefan Priebe
2012-07-01 21:01 ` Stefan Priebe
2012-07-01 21:13 ` Mark Nelson
2012-07-01 21:27 ` Stefan Priebe
2012-07-02 5:02 ` Alexandre DERUMIER
2012-07-02 6:12 ` Stefan Priebe - Profihost AG [this message]
2012-07-02 16:51 ` Gregory Farnum
2012-07-02 19:22 ` Stefan Priebe
2012-07-02 20:30 ` Josh Durgin
2012-07-03 4:42 ` Alexandre DERUMIER
2012-07-03 4:42 ` Alexandre DERUMIER
2012-07-03 7:49 ` Stefan Priebe - Profihost AG
2012-07-03 15:31 ` Sage Weil
2012-07-03 18:20 ` Stefan Priebe
2012-07-05 21:33 ` Gregory Farnum
2012-07-06 3:50 ` Alexandre DERUMIER
2012-07-06 8:54 ` Stefan Priebe
2012-07-06 17:11 ` Gregory Farnum
2012-07-06 18:09 ` Stefan Priebe - Profihost AG
2012-07-06 18:17 ` Gregory Farnum
2012-07-09 18:21 ` Stefan Priebe
2012-07-03 19:16 ` Stefan Priebe
2012-07-02 13:19 ` Stefan Priebe - Profihost AG
2012-06-29 12:33 ` Stefan Priebe - Profihost AG
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