linux-kernel - Re: [PATCH] sched: properly account IRQ and RT load in SCHED

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Message-ID: <20080821111713.GA15680@elte.hu>
Date:	Thu, 21 Aug 2008 13:17:13 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Nick Piggin <nickpiggin@...oo.com.au>,
	Gregory Haskins <ghaskins@...ell.com>,
	vatsa <vatsa@...ibm.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] sched: properly account IRQ and RT load in SCHED_OTHER
	load balancing


* Ingo Molnar <mingo@...e.hu> wrote:

> > This patch tries to solve this issue by accounting the time spend on 
> > both Real-Time tasks and IRQ handling, and using that to 
> > proportionally inflate the SCHED_OTHER load.
> 
> applied it to tip/sched/devel for more testing.

-tip testing found that it wouldnt build on UP in sched_debug.c - made 
that bit dependent on CONFIG_SMP. sched_scale_load() does not seem to be 
too meaningful on UP.

	Ingo
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