From: Jan De Luyck <lkml@kcore.org>
To: Kiko Piris <kernel@pirispons.net>
Subject: Re: [PATCH] Laptop-mode v7 for linux 2.6.1
Date: Mon, 12 Jan 2004 13:45:51 +0100
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Cc: Bart Samwel <bart@samwel.tk>, linux-kernel@vger.kernel.org,
       Dax Kelson <dax@gurulabs.com>, Bartek Kania <mrbk@gnarf.org>,
       Simon Mackinlay <smackinlay@mail.com>
References: <3FFFD61C.7070706@samwel.tk> <200401121212.44902.lkml@kcore.org> <20040112121956.GA8226@portsdebalears.com>
In-Reply-To: <20040112121956.GA8226@portsdebalears.com>
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On Monday 12 January 2004 13:19, Kiko Piris wrote:
> As you don't say if you have checked it, here goes my suggestion:
>
> First of all, you should assure there's no process doing reads [*] that
> cause a cache miss (eg. daemons like postfix that check the queue every
> few seconds). You can tell this running vmstat 1 and see that bi and bo
> [**] stay at 0.

bi == 0 in 99% of the time. It caused one spinup sofar, and the disk has been 
spun op 10 times sofar.

> [*] Processes making disk writes are supposed to be "harmless", because
> laptop-mode will delay those writes to disk (that's what it's supposed
> to do! ;).

Well, it looks otherwise to me.

Jan
-- 
It's hard to keep your shirt on when you're getting something off your chest.

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