Message-ID: <425399D9.8090301@yahoo.com.au>
Date: Wed, 06 Apr 2005 18:12:09 +1000
From: Nick Piggin <nickpiggin@yahoo.com.au>
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To: Ingo Molnar <mingo@elte.hu>
CC: "Siddha, Suresh B" <suresh.b.siddha@intel.com>,
       Andrew Morton <akpm@osdl.org>,
       linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [patch 1/5] sched: remove degenerate domains
References: <425322E0.9070307@yahoo.com.au> <20050406054412.GA5853@elte.hu> <20050406001041.A24403@unix-os.sc.intel.com> <20050406071341.GA7517@elte.hu>
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Ingo Molnar wrote:
> * Siddha, Suresh B <suresh.b.siddha@intel.com> wrote:
> 
> 
>>Similarly I am working on adding a new core domain for dual-core 
>>systems! All these domains are unnecessary and cause performance 
>>isssues on non Multi-threading/Multi-core capable cpus! Agreed that 
>>performance impact will be minor but still...
> 
> 
> ok, lets keep it then. It may in fact simplify the domain setup code: we 
> could generate the 'most generic' layout for a given arch all the time, 
> and then optimize it automatically. I.e. in theory we could have just a 
> single domain-setup routine, which would e.g. generate the NUMA domains 
> on SMP too, which would then be optimized away.
> 

Yep, exactly. Even so, Andrew: please ignore this patch series
and I'll redo it for you when we all agree on everything.

Thanks.

-- 
SUSE Labs, Novell Inc.

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