linux-kernel - Re: [PATCH] Only show RESOURCES_64BIT on relevant architectures

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Message-ID: <20071030200040.GA13999@flint.arm.linux.org.uk>
Date:	Tue, 30 Oct 2007 20:00:40 +0000
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	Matthew Wilcox <matthew@....cx>
Cc:	Ralf Baechle <ralf@...ux-mips.org>,
	Kumar Gala <galak@...nel.crashing.org>,
	Kyle McMartin <kyle@...artin.ca>, linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Only show RESOURCES_64BIT on relevant architectures

On Tue, Oct 30, 2007 at 06:13:16AM -0600, Matthew Wilcox wrote:
> On Tue, Oct 30, 2007 at 11:42:21AM +0000, Ralf Baechle wrote:
> > On Tue, Oct 30, 2007 at 02:37:19AM -0600, Matthew Wilcox wrote:
> > > On Mon, Oct 29, 2007 at 10:03:16PM -0500, Kumar Gala wrote:
> > > > same HW platform that you want to run with just 32-bit phys (for  
> > > > performance).
> > > 
> > > Have you measured what the performance difference is?
> > 
> > So that's 5668, 256 bytes data and 128 bytes of bss for a total of 6052
> > bytes.  Not a whole lot but I still fear some users on the most
> > claustrophobic systems will mind.
> 
> Oh, sure, I'm not saying I thought there would be no size difference; I
> was just bemused at the suggestion there was a performance difference.
> 
> Unless "won't fit in ROM any more" is considered a performance problem ;-)

I think we've gone way past that that issue NetWinders long ago... in the
2.4 days iirc.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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