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Re: [PATCH] hashed device lookup (Does NOT meet Linus' sumission policy!

To: Ben Greear <greearb@xxxxxxxxxxxxxxx>
Subject: Re: [PATCH] hashed device lookup (Does NOT meet Linus' sumission policy!)
From: Andi Kleen <ak@xxxxxxx>
Date: Sun, 7 Jan 2001 04:29:59 +0100
Cc: linux-kernel <linux-kernel@xxxxxxxxxxxxxxx>, "netdev@xxxxxxxxxxx" <netdev@xxxxxxxxxxx>
In-reply-to: <3A578F27.D2A9DF52@candelatech.com>; from greearb@candelatech.com on Sat, Jan 06, 2001 at 02:33:27PM -0700
References: <3A578F27.D2A9DF52@candelatech.com>
Sender: owner-netdev@xxxxxxxxxxx
User-agent: Mutt/1.2.5i
On Sat, Jan 06, 2001 at 02:33:27PM -0700, Ben Greear wrote:
> I'm hoping that I can get a few comments on this code.  It was added
> to (significantly) speed up things like 'ifconfig -a' when running with
> 4000 or so VLAN devices.  It should also help other instances with lots
> of (virtual) devices, like FrameRelay, ATM, and possibly virtual IP
> interfaces.  It probably won't help 'normal' users much, and in it's final
> form, should probably be a selectable option in the config process.
> 
> Anyway, let me know what you think!

Does it make any significant different with the ifconfig from newest nettools? 
I 
removed a quadratic algorithm from ifconfig's device parsing, and with that I 
was 
able to display a few thousand alias devices on a unpatched kernel in 
reasonable time.



-Andi

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