linux-kernel - Re: [PATCH v2] cpufreq: stats: Add 'load_table' debugfs file to show accumulated data of CPUs

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Date:	Thu, 20 Jun 2013 19:59:57 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	rjw@...k.pl, linux-kernel@...r.kernel.org,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Myungjoo Ham <myungjoo.ham@...sung.com>
Subject: Re: [PATCH v2] cpufreq: stats: Add 'load_table' debugfs file to show
 accumulated data of CPUs

On 06/20/2013 07:55 PM, Viresh Kumar wrote:
> On 20 June 2013 16:15, Chanwoo Choi <cw00.choi@...sung.com> wrote:
>> Yes, freq->old is same freq->new.
>>
>> The cpufreq gorvernor(dbs_check_cpu()) send CPUFREQ_LOADCHECK noti
>> right after calculating CPUs load, regardless of changing CPU frequency.
>> So, I use only freq->old value without using freq->new because load_table
>> debugfs file need current cpu frequency.
>>
>> Now, I can't think of any proper usage for freq->new.
>> Do you have good way for using freq->new to include more useful data in load_table?
> 
> This information might be interesting.. At what load, we moved from
> which freq to which one..
> 
> Just see if you can add the notification after frequency has been
> changed.
> 
OK, I'll modify it and send test result. Thanks.

Best Regards,
Chanwoo Choi
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