From: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
To: Ray Bryant <raybry@sgi.com>
Cc: Con Kolivas <kernel@kolivas.org>, Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
riel@redhat.com, piggin@cyberone.com.au, mbligh@aracnet.com
Subject: Re: swapping and the value of /proc/sys/vm/swappiness
Date: Wed, 8 Sep 2004 23:14:09 -0300 [thread overview]
Message-ID: <20040909021409.GA2122@logos.cnet> (raw)
In-Reply-To: <413FC8AC.7030707@sgi.com>
On Wed, Sep 08, 2004 at 10:06:20PM -0500, Ray Bryant wrote:
> Marcelo,
>
> For what it is worth, here are the benchmark results for the kernel with
> the patch I discussed before, along with the previous 2.6.9-rc1-mm3 results:
>
> Kernel Version 2.6.9-rc1-mm3:
> Total I/O Avg Swap min max pg cache min max
> ----------- --------- ------- ------ --------- ------- -------
> 0 274.80 MB/s 10511 MB ( 5644, 14492) 13293 MB ( 8596, 17156)
> 20 267.02 MB/s 12624 MB ( 5578, 16287) 15298 MB ( 8468, 18889)
> 40 267.66 MB/s 13541 MB ( 6619, 17461) 16199 MB ( 9393, 20044)
> 60 233.73 MB/s 18094 MB ( 16550, 19676) 20629 MB ( 19103, 22192)
> 80 213.64 MB/s 20950 MB ( 15844, 22977) 23450 MB ( 18496, 25440)
> 100 164.58 MB/s 26004 MB ( 26004, 26004) 28410 MB ( 28327, 28455)
>
> Kernel Version 2.6.9-rc1-mm3-kdb-nrmap:
> Total I/O Avg Swap min max pg cache min max
> ----------- --------- ------- ------ --------- ------- -------
> 0 286.93 MB/s 7288 MB ( 4847, 14536) 10122 MB ( 7771, 17138)
> 20 252.43 MB/s 13305 MB ( 3950, 18337) 15938 MB ( 6866, 20876)
> 40 268.52 MB/s 11538 MB ( 5333, 17298) 14238 MB ( 8247, 19836)
> 60 242.72 MB/s 16367 MB ( 8652, 21217) 18909 MB ( 11514, 23561)
> 80 212.94 MB/s 19424 MB ( 5632, 24047) 21937 MB ( 8567, 26469)
> 100 161.66 MB/s 26006 MB ( 26004, 26007) 28445 MB ( 28407, 28471)
>
> Except for the swappiness = 20 case, things are a smallish bit better for
> the modified kernel than 2.6.9-rc1-mm3. Clearly we haven't found the root
> of this problem yet.
Indeed.
> Have you still been unable to duplicate this problem on a small i386
> platform?
Yes right, I have been unable to duplicate the problem on small i386 box.
What about your tests?
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next prev parent reply other threads:[~2004-09-09 2:14 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-06 19:11 Ray Bryant
2004-09-06 20:10 ` Andrew Morton
2004-09-06 21:22 ` Ray Bryant
2004-09-06 21:36 ` Andrew Morton
2004-09-06 22:37 ` William Lee Irwin III
2004-09-06 23:51 ` Nick Piggin
2004-09-07 0:31 ` Ray Bryant
2004-09-06 22:48 ` William Lee Irwin III
2004-09-06 23:09 ` Con Kolivas
2004-09-06 23:27 ` Andrew Morton
2004-09-06 23:34 ` Con Kolivas
2004-09-07 0:03 ` Marcelo Tosatti
2004-09-07 1:34 ` Con Kolivas
2004-09-07 10:38 ` Nick Piggin
2004-09-07 10:56 ` Con Kolivas
2004-09-08 16:45 ` Marcelo Tosatti
2004-09-09 1:12 ` Con Kolivas
2004-09-07 17:03 ` Ray Bryant
2004-09-07 21:20 ` Marcelo Tosatti
2004-09-08 2:18 ` Marcelo Tosatti
2004-09-08 14:20 ` Ray Bryant
2004-09-08 16:54 ` Marcelo Tosatti
2004-09-08 19:35 ` Ray Bryant
2004-09-08 19:30 ` Marcelo Tosatti
2004-09-09 3:06 ` Ray Bryant
2004-09-09 2:14 ` Marcelo Tosatti [this message]
2004-09-09 14:21 ` Ray Bryant
2004-09-09 3:09 ` William Lee Irwin III
2004-09-09 14:16 ` Ray Bryant
2004-09-09 17:23 ` William Lee Irwin III
2004-09-28 1:54 ` Ray Bryant
2004-09-28 3:36 ` Nick Piggin
2004-09-29 0:36 ` Nick Piggin
2004-09-29 4:23 ` Ray Bryant
2004-09-30 17:15 ` Ray Bryant
2004-09-08 17:31 ` Martin J. Bligh
2004-09-08 18:04 ` Rik van Riel
2004-09-08 19:50 ` Diego Calleja
2004-09-08 21:10 ` Martin J. Bligh
2004-09-08 21:55 ` Diego Calleja
2004-09-08 22:20 ` Martin J. Bligh
2004-09-08 23:22 ` Rik van Riel
2004-09-08 22:28 ` Alan Cox
2004-09-08 23:42 ` Martin J. Bligh
2004-09-08 19:54 ` Ray Bryant
2004-09-08 15:19 ` Ray Bryant
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