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

Andi Kleen
2001-01-07T03:30:33Z

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