Re: [patch 1/5] sched: remove degenerate domains

From: Nick Piggin
Date: Wed Apr 06 2005 - 03:18:19 EST


Ingo Molnar wrote:
* Siddha, Suresh B <suresh.b.siddha@xxxxxxxxx> 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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