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Date: Sat, 17 Nov 2001 13:41:27 +0100
From: Francois Romieu <romieu@cogenit.fr>
To: Jan Kasprzak <kas@informatics.muni.cz>
Cc: linux-kernel@vger.kernel.org
Subject: Re: VM tuning for Linux routers
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Jan Kasprzak <kas@informatics.muni.cz> :
[...]
> 	I have a dual Athlon w/ 512M RAM and three NICs (one gigabit
> 3c985B running 802.1Q with 5 VLANs, two on-board 100Mbit 3c982). This box
> has almost nothing other to do apart from routing and packet filtering.
> Is there anything I can do to tell the VM system to use as much memory
> for network packets as possible?

In a sysctl fashion ? No.
However you can increase the length of the Rx/Tx rings on the 100Mb/s side 
and tune the pci latency timers (depends on the hardware fifo size). 

-- 
Ueimor
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