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Subject: Re: 2.4.12-ac4 10Mbit NE2k interrupt load kills p166
To: gandalf@wlug.westbo.se (Martin Josefsson)
Date: Thu, 25 Oct 2001 21:54:46 +0100 (BST)
Cc: alan@lxorguk.ukuu.org.uk (Alan Cox), bcrl@redhat.com (Benjamin LaHaise),
        _deepfire@mail.ru (Samium Gromoff), linux-kernel@vger.kernel.org
In-Reply-To: <Pine.LNX.4.21.0110252234270.27907-100000@tux.rsn.bth.se> from "Martin Josefsson" at Oct 25, 2001 10:40:49 PM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> Then I upgraded that machine to pIII 700 and even that machine slows to a
> crawl while transmitting with that bloody ISA NE2K. It's the same thing in
> kernel 2.4 too. These days I simply don't use that card anymore...
> 
> So something seems to have taken a wrong turn between 2.0 and 2.2
> I don't think this is a problem intruduced in 2.4.

A faster machine will take as long as a slow machine with an ne2000. It
doesn't matter if its an 8Mb 386 or a dual athlon, it will spend almost all
of its ne2000 handling time poking bytes across an 8MHz bus.

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