linux-kernel - Re: [PATCH] sched: avoid large irq-latencies in smp-balancing

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Message-Id: <1194461933.6289.120.camel@twins>
Date:	Wed, 07 Nov 2007 19:58:53 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	mingo@...e.hu, pwil3058@...pond.net.au,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sched: avoid large irq-latencies in smp-balancing

On Wed, 2007-11-07 at 10:27 -0800, Andrew Morton wrote:
> > On Wed, 07 Nov 2007 13:17:00 +0100 Peter Zijlstra <peterz@...radead.org> wrote:
> > +	{
> > +		.ctl_name	= CTL_UNNUMBERED,
> > +		.procname	= "sched_nr_migrate",
> > +		.data		= &sysctl_sched_nr_migrate,
> > +		.maxlen		= sizeof(unsigned int),
> > +		.mode		= 644,
> > +		.proc_handler	= &proc_dointvec,
> > +	},
> 
> This (and all the other stuff in that table) should be described in
> Documentation/, please.
> 
> It would be nice if sched_nr_migrate didn't exist, really.  It's hard to
> imagine anyone wanting to tweak it, apart from developers.

Right, most of these SCHED_DEBUG sysctls are only interesting to
developers, although stuff like sched_latency might be interesting to
some users.

I'll try and write up a documentation thingy before .24 hits the street.



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