From: Anton Blanchard <anton@samba.org>
To: Andi Kleen <ak@suse.de>
Cc: Brian Gerst <bgerst@didntduck.org>,
lkml <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH] Fix hotplug cpu on x86_64
Date: Sat, 8 Oct 2005 10:50:16 +1000 [thread overview]
Message-ID: <20051008005016.GG5210@krispykreme> (raw)
In-Reply-To: <20051007095041.GK6642@verdi.suse.de>
Hi,
> I also have a followon patch to avoid the extreme memory wastage
> currently caused by hotplug CPUs (e.g. with NR_CPUS==128 you currently
> lose 4MB of memory just for preallocated per CPU data). But that is
> something for post 2.6.14.
Im interested in doing that on ppc64 too. Are you currently only
creating per cpu data areas for possible cpus? The generic code does
NR_CPUS worth, we should change that in 2.6.15.
Anton
next prev parent reply other threads:[~2005-10-08 0:53 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-05 7:16 Bogus load average and cpu times on x86_64 SMP kernels Brian Gerst
2005-10-05 18:00 ` Brian Gerst
2005-10-07 4:15 ` [PATCH] Fix hotplug cpu on x86_64 Brian Gerst
2005-10-07 9:50 ` Andi Kleen
2005-10-08 0:50 ` Anton Blanchard [this message]
2005-10-08 10:33 ` Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2005-10-07 15:07 Protasevich, Natalie
2005-10-07 15:27 ` Brian Gerst
2005-10-07 16:24 ` Andi Kleen
2005-10-07 16:00 Protasevich, Natalie
2005-10-07 16:42 Protasevich, Natalie
2005-10-07 17:25 ` Andi Kleen
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