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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->| - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | |||||||||
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