On Sat, Nov 04, 2006 at 07:40:13PM +0100, Mikulas Patocka wrote:
> >The problem with a per_cpu biglock is that you may consume a lot of RAM
> >for big NR_CPUS. Count 32 KB per 'biglock' if NR_CPUS=1024
>
> Does one Linux kernel run on system with 1024 cpus? I guess it must fry
> spinlocks... (or even lockup due to spinlock livelocks)
SGI Altix systems comes to mind. I believe that Itanium even comes in
dual core flavor, that would give 2048 CPUs.
--
Tomasz Torcz 72->| 80->|
[email protected] 72->| 80->|
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