Re: [PATCH] Only show RESOURCES_64BIT on relevant architectures

Russell King
2007-10-30T20:02:13Z

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/