Re: [Xen-devel] [PATCH] Enlarge default NR_CPUS to 64 for x86_64

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

Shall we just bump it for i386 too?

 -- Keir

On 07/08/2009 10:37, "Wei, Gang" <gang.wei@xxxxxxxxx> wrote:

> By far a lot of systems are with more sockets (>=4), more cores (>=8),
> meanwhile with HyperThread, so enlarge the default NR_CPUS would easier the
> build for more threads systems.
> 
> Jimmy
> 
> -------------------------------------------------------------
> Enlarge default NR_CPUS to 64 for x86_64.
> 
> Signed-off-by: Wei Gang <gang.wei@xxxxxxxxx>
> 
> diff -r b9cdcf502aa3 xen/include/asm-x86/config.h
> --- a/xen/include/asm-x86/config.h Thu Aug 06 11:14:48 2009 +0100
> +++ b/xen/include/asm-x86/config.h Fri Aug 07 14:54:06 2009 +0800
> @@ -49,7 +49,11 @@
>  #ifdef MAX_PHYS_CPUS
>  #define NR_CPUS MAX_PHYS_CPUS
>  #else
> +#ifdef __i386__
>  #define NR_CPUS 32
> +#else
> +#define NR_CPUS 64
> +#endif
>  #endif
>  
>  #ifdef __i386__



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