From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Christoph Lameter <clameter@sgi.com>
Cc: David Chinner <dgc@sgi.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [REGRESSION] 2.6.19/2.6.20-rc3 buffered write slowdown
Date: Fri, 12 Jan 2007 11:06:48 +1100 [thread overview]
Message-ID: <45A6D118.5030508@yahoo.com.au> (raw)
In-Reply-To: <Pine.LNX.4.64.0701110950380.28802@schroedinger.engr.sgi.com>
Christoph Lameter wrote:
> On Thu, 11 Jan 2007, Nick Piggin wrote:
>
>
>>You're not turning on zone_reclaim, by any chance, are you?
>
>
> It is not a NUMA system so zone reclaim is not available.
Ah yes... Can't you force it on if you have a NUMA complied kernel?
> zone reclaim was
> already in 2.6.16.
Well it was a long shot, but that is something that has had a few
changes recently and is something that could interact badly with
the global pdflush.
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
WARNING: multiple messages have this Message-ID (diff)
From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Christoph Lameter <clameter@sgi.com>
Cc: David Chinner <dgc@sgi.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [REGRESSION] 2.6.19/2.6.20-rc3 buffered write slowdown
Date: Fri, 12 Jan 2007 11:06:48 +1100 [thread overview]
Message-ID: <45A6D118.5030508@yahoo.com.au> (raw)
In-Reply-To: <Pine.LNX.4.64.0701110950380.28802@schroedinger.engr.sgi.com>
Christoph Lameter wrote:
> On Thu, 11 Jan 2007, Nick Piggin wrote:
>
>
>>You're not turning on zone_reclaim, by any chance, are you?
>
>
> It is not a NUMA system so zone reclaim is not available.
Ah yes... Can't you force it on if you have a NUMA complied kernel?
> zone reclaim was
> already in 2.6.16.
Well it was a long shot, but that is something that has had a few
changes recently and is something that could interact badly with
the global pdflush.
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
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next prev parent reply other threads:[~2007-01-12 0:07 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-10 22:37 [REGRESSION] 2.6.19/2.6.20-rc3 buffered write slowdown David Chinner
2007-01-10 22:37 ` David Chinner
2007-01-10 23:04 ` Christoph Lameter
2007-01-10 23:04 ` Christoph Lameter
2007-01-10 23:08 ` David Chinner
2007-01-10 23:08 ` David Chinner
2007-01-10 23:12 ` Christoph Lameter
2007-01-10 23:12 ` Christoph Lameter
2007-01-10 23:18 ` David Chinner
2007-01-10 23:18 ` David Chinner
2007-01-10 23:13 ` Nick Piggin
2007-01-10 23:13 ` Nick Piggin
2007-01-11 0:31 ` David Chinner
2007-01-11 0:43 ` Christoph Lameter
2007-01-11 0:43 ` Christoph Lameter
2007-01-11 1:06 ` David Chinner
2007-01-11 1:06 ` David Chinner
2007-01-11 1:40 ` Christoph Lameter
2007-01-11 1:40 ` Christoph Lameter
2007-01-11 2:57 ` David Chinner
2007-01-11 2:57 ` David Chinner
2007-01-11 1:08 ` Nick Piggin
2007-01-11 1:08 ` Nick Piggin
2007-01-11 1:24 ` David Chinner
2007-01-11 1:24 ` David Chinner
2007-01-11 9:27 ` Nick Piggin
2007-01-11 9:27 ` Nick Piggin
2007-01-11 17:51 ` Christoph Lameter
2007-01-11 17:51 ` Christoph Lameter
2007-01-12 0:06 ` Nick Piggin [this message]
2007-01-12 0:06 ` Nick Piggin
2007-01-12 3:04 ` Christoph Lameter
2007-01-12 3:04 ` Christoph Lameter
[not found] ` <20070111063555.GB33919298@melbourne.sgi.com>
2007-01-11 9:23 ` Nick Piggin
2007-01-11 9:23 ` Nick Piggin
2007-01-11 1:11 ` David Chinner
2007-01-11 1:11 ` David Chinner
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