From: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org, Paul Menage <menage@google.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Mike Galbraith <efault@gmx.de>
Subject: Re: [PATCH] accelerate newidle balancing in relax_domain
Date: Thu, 13 Nov 2008 20:58:07 +0900 [thread overview]
Message-ID: <491C164F.4030907@jp.fujitsu.com> (raw)
In-Reply-To: <20081113111040.GA26461@elte.hu>
Ingo Molnar wrote:
> I agree with making it more sensitive to momentary load fluctuations.
> (as long as other metrics do not degrade).
>
> But this solutin basically overrides the newidle_idx tuning in
> topology.h.
>
> Is there a strong reason to do this tuning dynamically, or could we
> just decrease newidle_idx in the appropriate templates in the
> topology.h files?
IMHO topology.h should have proper values that will fit 'standard'
system usage. I'm not sure that the current values (such as 2 in
SD_NODE) is best number or not... And I think it can differ by archs.
If there are no features that will be affected by the changing
default newidle_idx values, then we can fix it in the templates.
It would be a strong reason - I don't like regression :-)
Thanks,
H.Seto
prev parent reply other threads:[~2008-11-13 11:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-13 11:05 [PATCH] accelerate newidle balancing in relax_domain Hidetoshi Seto
2008-11-13 11:10 ` Ingo Molnar
2008-11-13 11:58 ` Hidetoshi Seto [this message]
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