From: Tejun Heo <tj@kernel.org>
To: David Miller <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 12/12]: sparc64: Use new dynamic per-cpu allocator.
Date: Thu, 09 Apr 2009 14:45:19 -0700 [thread overview]
Message-ID: <49DE6C6F.8090402@kernel.org> (raw)
In-Reply-To: <20090409.142923.252620650.davem@davemloft.net>
David Miller wrote:
>> Isn't it better to use embedding allocator for !NUMA cases (one less
>> TLB entry usage for each CPU)?
>
> Heck, the embedding case would probably be optimal for Niagara NUMA
> systems too.
>
> On Niagara systems all of the "possible" cpu numbers are linear and in
> order. No holes, gaps, or other stuff like this. So just allocating
> big TLB mapping chunks and chopping them up to the individual cpus is
> the best scheme possible.
Sounds great. I wonder whether the remap allocator could be replaced
with embed allocator with right parameters on x86 too.
Thanks.
--
tejun
prev parent reply other threads:[~2009-04-09 21:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-09 5:37 [PATCH 12/12]: sparc64: Use new dynamic per-cpu allocator David Miller
2009-04-09 6:44 ` Sam Ravnborg
2009-04-09 11:48 ` Tejun Heo
2009-04-09 21:29 ` David Miller
2009-04-09 21:45 ` Tejun Heo [this message]
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