Re: [PATCH] ia64: change defconfig to NR_CPUS==1024

From: Adrian Bunk
Date: Fri Jan 06 2006 - 13:24:35 EST


On Fri, Jan 06, 2006 at 09:45:20AM -0800, Luck, Tony wrote:
> >Why can't we keep the default below 64? Surely the 0.1% of the market
> >which needs more than 64 cpus can recompile their kernel ...
>
> I suppose that depends on your expectations from defconfig. In my
> mind its the one that builds into a kernel that will boot and run
> on just about any box. People who want to get a bit of extra performance
> will do the re-compilation to strip out the bits that they don't want
> and tune down limits that are set higher than they need. I only
> ever boot a defconfig kernel to check that it still works, my systems
> all run tiger_defconfig/zx1_defconfig based most of the time. But
> perhaps I'm the weird one?
>...

defconfig's are usually not intended for running on all supported
machines, they are more a base for compile-tests and a starting point
for building an own configuration.

If you intend to use the ia64 defconfig in a different way I don't
see any strong point against it.

But if you seriously want a defconfig "that builds into a kernel that
will boot and run on just about any box", please change your defconfig
to ITANIUM=y,MCKINLEY=n. "People who want to get a bit of extra
performance" can still change their configuration to omit support for
the original Itanium.

> -Tony

cu
Adrian

--

"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed

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