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From: Nick Piggin <nickpiggin@yahoo.com.au>
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
Date: Wed, 06 Apr 2005 18:12:09 +1000	[thread overview]
Message-ID: <425399D9.8090301@yahoo.com.au> (raw)
In-Reply-To: <20050406071341.GA7517@elte.hu>

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.


  reply	other threads:[~2005-04-06  8:14 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-05 23:44 [patch 1/5] sched: remove degenerate domains Nick Piggin
2005-04-05 23:45 ` [patch 2/5] sched: NULL domains Nick Piggin
2005-04-05 23:46   ` [patch 3/5] sched: multilevel sbe and sbf Nick Piggin
2005-04-05 23:47     ` [patch 4/5] sched: RCU sched domains Nick Piggin
2005-04-05 23:49       ` [patch 5/5] sched: consolidate sbe sbf Nick Piggin
2005-04-06  6:27         ` Ingo Molnar
2005-04-06  8:09           ` Nick Piggin
2005-04-06  8:16             ` Nick Piggin
2005-04-07  7:17               ` Ingo Molnar
2005-04-07  7:15             ` Ingo Molnar
2005-04-06  6:18       ` [patch 4/5] sched: RCU sched domains Ingo Molnar
2005-04-06  8:01         ` Nick Piggin
2005-04-07  7:11           ` Ingo Molnar
2005-04-07  7:58             ` Nick Piggin
2005-04-11 22:15               ` Paul E. McKenney
2005-04-12  0:03                 ` Nick Piggin
2005-04-06  5:54     ` [patch 3/5] sched: multilevel sbe and sbf Ingo Molnar
2005-04-06  7:53       ` Nick Piggin
2005-04-06  5:45   ` [patch 2/5] sched: NULL domains Ingo Molnar
2005-04-06  5:48     ` Ingo Molnar
2005-04-06  7:51       ` Nick Piggin
2005-04-06  5:44 ` [patch 1/5] sched: remove degenerate domains Ingo Molnar
2005-04-06  7:10   ` Siddha, Suresh B
2005-04-06  7:13     ` Ingo Molnar
2005-04-06  8:12       ` Nick Piggin [this message]
2005-04-06  7:49   ` Nick Piggin
2005-04-07  7:00     ` Ingo Molnar

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