From: Dave Jones <davej@codemonkey.org.uk>
To: Andrew Morton <akpm@digeo.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: 2.5.60-mm2
Date: Fri, 14 Feb 2003 09:38:56 +0000 [thread overview]
Message-ID: <20030214093856.GC13845@codemonkey.org.uk> (raw)
In-Reply-To: <20030214013144.2d94a9c5.akpm@digeo.com>
On Fri, Feb 14, 2003 at 01:31:44AM -0800, Andrew Morton wrote:
> . Considerable poking at the NFS MAP_SHARED OOM lockup. It is limping
> along now, but writeout bandwidth is poor and it is still struggling.
> Needs work.
>
> . There's a one-liner which removes an O(n^2) search in the NFS writeback
> path. It increases writeout bandwidth by 4x and decreases CPU load from
> 100% to 3%. Needs work.
I'm puzzled that you've had NFS stable enough to test these.
How much testing has this stuff had? Here 2.5.60+bk clients fall over under
moderate NFS load. (And go splat quickly under high load).
Trying to run things like dbench causes lockups, fsx/fstress made it
reboot, plus the odd 'cheating' errors reported yesterday.
Dave
--
| Dave Jones. http://www.codemonkey.org.uk
| SuSE Labs
WARNING: multiple messages have this Message-ID (diff)
From: Dave Jones <davej@codemonkey.org.uk>
To: Andrew Morton <akpm@digeo.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: 2.5.60-mm2
Date: Fri, 14 Feb 2003 09:38:56 +0000 [thread overview]
Message-ID: <20030214093856.GC13845@codemonkey.org.uk> (raw)
In-Reply-To: <20030214013144.2d94a9c5.akpm@digeo.com>
On Fri, Feb 14, 2003 at 01:31:44AM -0800, Andrew Morton wrote:
> . Considerable poking at the NFS MAP_SHARED OOM lockup. It is limping
> along now, but writeout bandwidth is poor and it is still struggling.
> Needs work.
>
> . There's a one-liner which removes an O(n^2) search in the NFS writeback
> path. It increases writeout bandwidth by 4x and decreases CPU load from
> 100% to 3%. Needs work.
I'm puzzled that you've had NFS stable enough to test these.
How much testing has this stuff had? Here 2.5.60+bk clients fall over under
moderate NFS load. (And go splat quickly under high load).
Trying to run things like dbench causes lockups, fsx/fstress made it
reboot, plus the odd 'cheating' errors reported yesterday.
Dave
--
| Dave Jones. http://www.codemonkey.org.uk
| SuSE Labs
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next prev parent reply other threads:[~2003-02-14 9:35 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-14 9:31 2.5.60-mm2 Andrew Morton
2003-02-14 9:31 ` 2.5.60-mm2 Andrew Morton
2003-02-14 9:38 ` Dave Jones [this message]
2003-02-14 9:38 ` 2.5.60-mm2 Dave Jones
2003-02-14 9:58 ` 2.5.60-mm2 Andrew Morton
2003-02-14 9:58 ` 2.5.60-mm2 Andrew Morton
2003-02-14 10:13 ` 2.5.60-mm2 Dave Jones
2003-02-14 10:13 ` 2.5.60-mm2 Dave Jones
2003-02-14 10:22 ` 2.5.60-mm2 Andrew Morton
2003-02-14 10:22 ` 2.5.60-mm2 Andrew Morton
2003-02-14 10:10 ` 2.5.60-mm2 Thomas Schlichter
2003-02-17 1:59 ` 2.5.60-mm2 Bill Davidsen
2003-02-17 12:08 ` 2.5.60-mm2 Bill Davidsen
2003-02-17 12:35 ` 2.5.60-mm2 Thomas Schlichter
2003-02-17 12:35 ` 2.5.60-mm2 Thomas Schlichter
2003-02-17 18:32 ` 2.5.60-mm2 Bill Davidsen
2003-02-17 18:32 ` 2.5.60-mm2 Bill Davidsen
2003-02-14 20:59 ` compile fail: 2.5.60-mm2 Core
2003-02-14 21:18 ` Joshua Kwan
2003-02-14 22:06 ` Andrew Morton
2003-02-14 22:06 ` Andrew Morton
2003-02-15 20:27 ` 2.5.60-mm2 Arador
2003-02-15 20:27 ` 2.5.60-mm2 Arador
-- strict thread matches above, loose matches on Subject: below --
2003-02-14 13:02 2.5.60-mm2 Con Kolivas
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