linux-kernel - Re: [PATCH 0/6] cpufreq: Add 'load_table' debugfs file to show colleced CPUs load

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Message-ID: <CAKohpokzn4jrO3rr8pjzwd4Xn+0umOK-sMANV2Fj5xn6UhBHVg@mail.gmail.com>
Date:	Tue, 9 Jul 2013 12:20:02 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Chanwoo Choi <cw00.choi@...sung.com>
Cc:	rjw@...k.pl, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, cpufreq@...r.kernel.org,
	kyungmin.park@...sung.com, myungjoo.ham@...sung.com
Subject: Re: [PATCH 0/6] cpufreq: Add 'load_table' debugfs file to show
 colleced CPUs load

On 5 July 2013 14:16, Chanwoo Choi <cw00.choi@...sung.com> wrote:
> Second, previous performance/powersave governor haven't calculated CPUs load
> becuase these governor didn't change CPU frequency according to CPUs load. But,
> load_table debugfs file always should indicate the collected CPUs data regardless
> of the kind of cpufreq governor. So, the patch3/4/5 implement that performance/
> powersave governor will check periodically CPUs load by calling dbs_check_cpu()
> with timer.

I raised a query on how can we call dbs_check_cpu() from
performance/powersave? Also, calling this routine will degrade
performance without any sense. So, I vote not for doing it.
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