linux-kernel - Re: CONFIG_IRQBALANCE for 64-bit x86 ?

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Message-ID: <47427076.7030702@zytor.com>
Date:	Mon, 19 Nov 2007 21:28:22 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Nick Piggin <nickpiggin@...oo.com.au>
CC:	Adrian Bunk <bunk@...nel.org>, Willy Tarreau <w@....eu>,
	Mark Lord <lkml@....ca>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...l.org>,
	Ingo Molnar <mingo@...e.hu>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: CONFIG_IRQBALANCE for 64-bit x86 ?

Nick Piggin wrote:
> On Tuesday 20 November 2007 15:37, Adrian Bunk wrote:
>> On Tue, Nov 20, 2007 at 05:29:29AM +0100, Willy Tarreau wrote:
> 
>>> Agreed. When userspace has something to do with the way IRQs are
>>> delivered, it's going to smell as bad as micro-kernels...
>> The next step to a micro-kernel would then be hardware drivers and file
>> systems in userspace?  ;-)
> 
> We already have those. So the next step would be to pretend the
> performance critical ones can be in userspace and remain competitive,
> wouldn't it? ;)

Hey, I have a great idea... we can create a microkernel^W hypervisor and 
make a single process^W domain do all the I/O...

	-hpa
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