Messages in this thread | | | Date | Sat, 4 Nov 2006 20:39:16 +0100 | From | Tomasz Torcz <> | Subject | Re: New filesystem for Linux |
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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->| zdzichu@irc.-nie.spam-.pl 72->| 80->|
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