From: Arjan van de Ven <arjan@infradead.org>
To: Zwane Mwaikambo <zwane@arm.linux.org.uk>
Cc: Andi Kleen <ak@suse.de>, linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] i386: Per node IDT
Date: Mon, 11 Jul 2005 16:05:53 +0200 [thread overview]
Message-ID: <1121090754.3177.26.camel@laptopd505.fenrus.org> (raw)
In-Reply-To: <Pine.LNX.4.61.0507110804210.16055@montezuma.fsmlabs.com>
On Mon, 2005-07-11 at 08:09 -0600, Zwane Mwaikambo wrote:
> On Mon, 11 Jul 2005, Arjan van de Ven wrote:
>
> > On Mon, 2005-07-11 at 03:59 +0200, Andi Kleen wrote:
> > > Why per node? Why not go the whole way and make it per CPU?
> >
> > Agreed, for two reasons even
> > 1) Per cpu allows for even more devices and cache locality
> > 2) While few people have a NUMA system, many have an SMP system so you
> > get a lot more testing.
>
> Agreed, the first version was a per cpu one simply so that i could test it
> on a normal SMP system. Andi seems to be of the same opinion, what do you
> think of the hotplug cpu case (explained in previous email)?
you need to cope with hotplug of entire nodes anyway, or hotunplug of
the last cpu of a node. In fact I bet that the administration needed
will be LESS in the per cpu case (since you know it's the only one)
compared to the per node case.
next prev parent reply other threads:[~2005-07-11 14:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.61.0507101617240.16055@montezuma.fsmlabs.com.suse.lists.linux.kernel>
2005-07-11 1:59 ` [RFC][PATCH] i386: Per node IDT Andi Kleen
2005-07-11 4:02 ` Arjan van de Ven
2005-07-11 4:08 ` Andi Kleen
2005-07-11 14:09 ` Zwane Mwaikambo
2005-07-11 14:05 ` Arjan van de Ven [this message]
2005-07-11 15:17 ` Kenji Kaneshige
2005-07-11 13:34 ` Zwane Mwaikambo
2005-07-11 15:03 ` Brian Gerst
2005-07-11 15:21 ` Zwane Mwaikambo
2005-07-11 16:39 ` Andi Kleen
2005-07-11 12:28 Oleg Nesterov
2005-07-11 14:03 ` Zwane Mwaikambo
2005-07-11 14:44 ` Oleg Nesterov
2005-07-11 15:05 ` Zwane Mwaikambo
2005-07-11 15:19 ` Oleg Nesterov
2005-08-07 1:13 ` Zwane Mwaikambo
2005-08-07 10:47 ` Oleg Nesterov
-- strict thread matches above, loose matches on Subject: below --
2005-07-10 22:41 Zwane Mwaikambo
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