Re: idle task's task_t allocation on NUMA machines

From: Samuel Thibault
Date: Thu Aug 18 2005 - 15:03:23 EST


Samuel Thibault, le Thu 18 Aug 2005 21:49:41 +0200, a écrit :
> Eric Dumazet, le Thu 18 Aug 2005 17:18:55 +0200, a écrit :
> > I believe IRQ stacks are also allocated on node 0, that seems more serious.
>
> For the i386 architecture at least, yes: they are statically defined in
> arch/i386/kernel/irq.c, while they could be per_cpu.

Hum, but the per_cpu areas for i386 are not numa-aware... I'm wondering:
isn't the current x86_64 numa-aware implementation of per_cpu generic
enough for any architecture?

Regards,
Samuel
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