From: "Martin J. Bligh" <mbligh@mbligh.org>
To: Samuel Thibault <samuel.thibault@ens-lyon.org>,
Eric Dumazet <dada1@cosmosbay.com>,
linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net
Subject: Re: [Lse-tech] Re: idle task's task_t allocation on NUMA machines
Date: Thu, 18 Aug 2005 14:28:08 -0700 [thread overview]
Message-ID: <1704890000.1124400488@flay> (raw)
In-Reply-To: <20050818200255.GI8822@bouh.labri.fr>
--On Thursday, August 18, 2005 22:02:55 +0200 Samuel Thibault <samuel.thibault@ens-lyon.org> wrote:
> 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?
All ZONE_NORMAL on ia32 is on node 0, so I don't think it'll help.
M.
next prev parent reply other threads:[~2005-08-18 21:28 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-18 14:08 idle task's task_t allocation on NUMA machines Samuel Thibault
2005-08-18 15:18 ` Eric Dumazet
2005-08-18 15:39 ` Samuel Thibault
2005-08-18 17:20 ` Christoph Lameter
2005-08-18 19:49 ` Samuel Thibault
2005-08-18 20:02 ` Samuel Thibault
2005-08-18 21:28 ` Martin J. Bligh [this message]
2005-08-18 21:32 ` [Lse-tech] " Andi Kleen
2005-08-18 18:27 ` Robin Holt
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