linux-kernel - Re: [PATCH] sched: Call update_group_power only for local

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Message-ID: <1278611346.1900.165.camel@laptop>
Date:	Thu, 08 Jul 2010 19:49:06 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Suresh Siddha <suresh.b.siddha@...el.com>
Cc:	Venkatesh Pallipadi <venki@...gle.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Gautham R Shenoy <ego@...ibm.com>,
	Joel Schopp <jschopp@...tin.ibm.com>,
	Michael Neuling <mikey@...ling.org>
Subject: Re: [PATCH] sched: Call update_group_power only for local_group

On Thu, 2010-07-08 at 10:45 -0700, Suresh Siddha wrote:
>  
> @@ -2456,6 +2454,9 @@ static inline void update_sd_lb_stats(struct sched_domain *sd, int this_cpu,
>  	init_sd_power_savings_stats(sd, sds, idle);
>  	load_idx = get_sd_load_idx(sd, idle);
>  
> +	if (this_cpu == smp_processor_id())
> +		update_group_power(sd, this_cpu);
> +
>  	do {
>  		int local_group;

Which will break for nohz_idle_balance..
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