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Date: Tue, 20 Nov 2001 19:58:47 +0100
From: Francois Romieu <romieu@cogenit.fr>
To: linux-kernel@vger.kernel.org
Subject: Re: VM tuning for Linux routers
Message-ID: <20011120195847.A27711@se1.cogenit.fr>
In-Reply-To: <20011118145400.A23181@se1.cogenit.fr> <E1661at-0005cw-00@calista.inka.de>
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In-Reply-To: <E1661at-0005cw-00@calista.inka.de>; from ecki@lina.inka.de on Tue, Nov 20, 2001 at 04:29:07AM +0100
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Bernd Eckenfels <ecki@lina.inka.de> :
> In article <20011118145400.A23181@se1.cogenit.fr> you wrote:
> >> You can increase the reserved free memory (not sure where to do this in
> > This reserve isn't dedicated to networking alas.
> 
> But it is for atomic kernel memory requests, which happen to be caused by
> Interrupt handlers. On a Network loaded Box most of them are from the NICs.

The word "firewall" triggered the syslog activity led in my head. :o)

<grep, grep>
How would you do an estimate of the required memory for the whole 
networking (GFP_ATOMIC is wildly used out of the irq handlers themselves) ?

-- 
Ueimor 
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