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From: "Martin J. Bligh" <mbligh@aracnet.com>
To: Diego Calleja <diegocg@teleline.es>, Rik van Riel <riel@redhat.com>
Cc: raybry@sgi.com, marcelo.tosatti@cyclades.com, kernel@kolivas.org,
	akpm@osdl.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	piggin@cyberone.com.au
Subject: Re: swapping and the value of /proc/sys/vm/swappiness
Date: Wed, 08 Sep 2004 14:10:32 -0700	[thread overview]
Message-ID: <36100000.1094677832@flay> (raw)
In-Reply-To: <20040908215008.10a56e2b.diegocg@teleline.es>

>> > For HPC, maybe. For a fileserver, it might be far too little. That's the
>> > trouble ... it's all dependant on the workload. Personally, I'd prefer
>> > to get rid of manual tweakables (which are a pain in the ass in the field
>> > anyway), and try to have the kernel react to what the customer is doing.
>> 
>> Agreed.  Many of these things should be self-tunable pretty
>> easily, too...
> 
> I know this has been discussed before, but could a userspace daemon which
> autotunes the tweakables do a better job wrt. to adapting the kernel
> behaviour depending on the workload? Just like these days we have
> irqbalance instead of a in-kernel "irq balancer". It's a alternative
> worth of look at?

I really don't see any point in pushing the self-tuning of the kernel out
into userspace. What are you hoping to achieve?

M.


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  reply	other threads:[~2004-09-08 21:10 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
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 [this message]
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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