linux-kernel - Re: + sched-use-tasklet-to-call-balancing.patch added to -mm tree

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Message-ID: <20061107093112.A3262@unix-os.sc.intel.com>
Date:	Tue, 7 Nov 2006 09:31:12 -0800
From:	"Siddha, Suresh B" <suresh.b.siddha@...el.com>
To:	Christoph Lameter <clameter@....com>
Cc:	Ingo Molnar <mingo@...e.hu>, akpm@...l.org,
	mm-commits@...r.kernel.org, nickpiggin@...oo.com.au,
	suresh.b.siddha@...el.com, linux-kernel@...r.kernel.org
Subject: Re: + sched-use-tasklet-to-call-balancing.patch added to -mm tree

On Tue, Nov 07, 2006 at 09:44:11AM -0800, Christoph Lameter wrote:
> On Tue, 7 Nov 2006, Ingo Molnar wrote:
> 
> > i'm not sure i get the point of this whole do-rebalance-in-tasklet idea. 
> > A tasklet is global to the system. The rebalance tick was per-CPU. This 
> > is not an equivalent change at all. What am i missing?
> 
> A tasklet runs per cpu. In many ways it is equivalent to an interrupt 
> context just interrupts are enabled.

Christoph, DECLARE_TASKLET that you had atleast needs to be per cpu.. 
Not sure if there are any other concerns.

thanks,
suresh
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