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Date: Wed, 12 Feb 2003 19:18:48 +0100
From: Andi Kleen <ak@suse.de>
To: Ingo Oeser <ingo.oeser@informatik.tu-chemnitz.de>
Cc: Andi Kleen <ak@suse.de>, Jamie Lokier <jamie@shareable.org>,
       Dave Jones <davej@codemonkey.org.uk>,
       "Martin J. Bligh" <mbligh@aracnet.com>,
       linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [Bug 350] New: i386 context switch very slow compared to 2.4 due to wrmsr (performance)
Message-ID: <20030212181848.GA11114@wotan.suse.de>
References: <629040000.1045013743@flay> <20030212025902.GA14092@codemonkey.org.uk> <20030212075048.GA9049@wotan.suse.de> <20030212102741.GC10422@bjl1.jlokier.co.uk> <20030212104508.GA1273@wotan.suse.de> <20030212185200.A629@nightmaster.csn.tu-chemnitz.de>
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On Wed, Feb 12, 2003 at 06:52:00PM +0100, Ingo Oeser wrote:
> On Wed, Feb 12, 2003 at 11:45:08AM +0100, Andi Kleen wrote:
> > [...] I have no real interest in vm86 mode, perhaps one of the people
> > interested in dosemu etc. could take care of it. I'm very glad it doesn't
> > exist on my main architecture - x86-64 - given how many hacks it needs to be 
> > supported.
> 
> So what about making it a CONFIG_XXX option? The few dosemu users
> could then configure it in.

Doesn't help for precompiled distribution kernels, which is what the majority
of linux users run these days.

-Andi
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