Re: [PATCH v3 linux-next] cpufreq: ondemand: Calculate gradient ofCPU load to early increase frequency

From: Viresh Kumar
Date: Fri Feb 22 2013 - 00:57:16 EST

On Fri, Feb 22, 2013 at 7:26 AM, Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:
> On 21 February 2013 23:09, Stratos Karafotis <stratosk@xxxxxxxxxxxx> wrote:

>> Instead of checking only the absolute value of CPU load_freq to increase
>> frequency, we detect forthcoming CPU load rise and increase frequency
>> earlier.
>> Every sampling rate, we calculate the gradient of load_freq. If it is
>> too steep we assume that the load most probably will go over
>> up_threshold in next iteration(s) and we increase frequency immediately.
>> New tuners are introduced:
>> - early_demand: to enable this functionality (disabled by default).
>> - grad_up_threshold: over this gradient of load we will increase
>> frequency immediately.
>> Signed-off-by: Stratos Karafotis <stratosk@xxxxxxxxxxxx>
> Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>


I applied it here with my Ack over my patches, for getting a run by
"kbuild test robot".;a=shortlog;h=refs/heads/cpufreq-for-3.10
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