linux-kernel - Re: [PATCH] Add Kconfig option for default swappiness

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Message-ID: <87eib1byf8.fsf@gmail.com>
Date:	Wed, 03 Nov 2010 22:44:11 -0400
From:	Ben Gamari <bgamari.foss@...il.com>
To:	Hiroyuki Kamezawa <kamezawa.hiroyuki@...il.com>
Cc:	David Rientjes <rientjes@...gle.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Jesper Juhl <jj@...osbits.net>,
	Wu Fengguang <fengguang.wu@...el.com>
Subject: Re: [PATCH] Add Kconfig option for default swappiness

On Tue, 2 Nov 2010 23:34:27 +0900, Hiroyuki Kamezawa <kamezawa.hiroyuki@...il.com> wrote:
> Hmm, then, can't we add a sysctl template config/script for generic
> sysctl values ?
>
That is one idea. Unfortunately, then we have something of a dependency
on out of tree userspace utilities.

> Adding this kind of CONFIG one by one seems not very helpful...
> 
This was definitely a concern of mine as well. In principle, a
distribution might want to tune any of the knobs in /proc/sys, so I
agree that adding them to Kconfig is a bit of a poor path to go down.
That being said, swappiness is an especially important tunable.

- Ben
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