From mboxrd@z Thu Jan  1 00:00:00 1970
From: Fyodor Ustinov <ufm@ufm.su>
Subject: Re: read performance not perfect
Date: Mon, 08 Aug 2011 20:52:39 +0300
Message-ID: <4E402267.3010401@ufm.su>
References: <CABAwU-YJ8DFjphavMQ+NjqPU7=fFBtwsEMzE7xT1G8gp4LywSA@mail.gmail.com>	<Pine.LNX.4.64.1107181012540.22215@cobra.newdream.net>	<CABAwU-YKmEC=umFLzDb-ykPbzQ9s3sKoUmQbkumExrXEwyveNA@mail.gmail.com>	<Pine.LNX.4.64.1108040846500.17151@cobra.newdream.net>	<loom.20110804T213454-854@post.gmane.org>	<Pine.LNX.4.64.1108041252230.26398@cobra.newdream.net>	<4E3B2D78.5060605@ufm.su>	<Pine.LNX.4.64.1108041825230.29841@cobra.newdream.net>	<4E3B8F0E.20606@ufm.su>	<Pine.LNX.4.64.1108050905350.12301@cobra.newdream.net>	<4E3C44DC.9090906@ufm.su> <Pine.LNX.4.64.1108051315420.12301@cobra.newdream.net> <4E3C5CD0.6060100@ufm.su>
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To: Sage Weil <sage@newdream.net>
Cc: ceph-devel@vger.kernel.org

On 08/06/2011 12:12 AM, Fyodor Ustinov wrote:
> On 08/05/2011 11:17 PM, Sage Weil wrote:
>> On Fri, 5 Aug 2011, Fyodor Ustinov wrote:
>>> On 08/05/2011 07:07 PM, Sage Weil wrote:
>>>> This is the problem.  The readahead patches in the master branch of
>>>> git://ceph.newdream.net/git/ceph-client.git.  They're not upstream 
>>>> yet.
>>>> Sorry that wasn't clear!
>>> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=e9852227431a0ed6ceda064f33e4218757acab6c 
>>>
>>> - it's not this patch?
>> Nope, it's ebd62c49c0a71a9af6b92b4f0cedfd2b1d46c16e, in ceph-client.git.
>> Then d0a287e18a81a0314a9aa82b6f54eb7f5ecabd60 bumps up the default 
>> rasize
>> window.
>>
>> FWIW I saw a big jump in read spead on my cluster (now fully 
>> saturates the
>> client interface).
>>
>> sage
> Well. I wait net kernel. :)
Sage, 3.1-rc1 released. This release has the necessary patches?

WBR,
     Fyodor.