linux-kernel - Re: why does the macro "ZERO

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Message-ID: <20070607192911.GV6909@holomorphy.com>
Date:	Thu, 7 Jun 2007 12:29:11 -0700
From:	William Lee Irwin III <wli@...omorphy.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Robert P. J. Day" <rpjday@...dspring.com>,
	Satyam Sharma <satyam.sharma@...il.com>,
	Nick Piggin <nickpiggin@...oo.com.au>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ralf Baechle <ralf@...ux-mips.org>
Subject: Re: why does the macro "ZERO_PAGE" take an argument?

Robert P. J. Day wrote:
>> although it's not clear where in the source tree are the invocations
>> that would actually make a difference to a MIPS system, which is why
>> i've CC'ed ralf on this.  i'm sure he can clear this up. :-)

On Thu, Jun 07, 2007 at 10:32:29AM -0700, H. Peter Anvin wrote:
> x86 could also benefit from coloured zeropages.  In fact, I thought it
> already had them (K8 wants as many as 8.)

How would one demonstrate the beneficial effect of such?


-- wli
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