From: Con Kolivas <kernel@kolivas.org>
To: Nick Piggin <piggin@cyberone.com.au>
Cc: Marcelo Tosatti <marcelo.tosatti@cyclades.com>,
Andrew Morton <akpm@osdl.org>,
raybry@sgi.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
riel@redhat.com, mbligh@aracnet.com
Subject: Re: swapping and the value of /proc/sys/vm/swappiness
Date: Tue, 07 Sep 2004 20:56:47 +1000 [thread overview]
Message-ID: <413D93EF.80305@kolivas.org> (raw)
In-Reply-To: <413D8FB2.1060705@cyberone.com.au>
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Nick Piggin wrote:
>
>
> Marcelo Tosatti wrote:
>
>>
>> Hi kernel fellows,
>>
>> I volunteer. I'll try something tomorrow to compare swappiness of
>> older kernels like 2.6.5 and 2.6.6, which were fine on SGI's Altix
>> tests, up to current newer kernels (on small memory boxes of course).
>>
>
> Hi Marcelo,
>
> Just a suggestion - I'd look at the thrashing control patch first.
> I bet that's the cause.
Good point!
I recall one of my users found his workload which often hit swap lightly
was swapping much heavier and his performance dropped dramatically until
I stopped including the swap thrash control patch. I informed Rik about
it some time back so I'm not sure if he addressed it in the meantime.
Cheers,
Con
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next prev parent reply other threads:[~2004-09-07 10:56 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 [this message]
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
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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