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

[Stratos Karafotis]

On 04/09/2013 07:56 PM, Stratos Karafotis wrote:
> On 04/05/2013 10:50 PM, Stratos Karafotis wrote:
> > Hi Viresh,
> >
> > On 04/04/2013 07:54 AM, Viresh Kumar wrote:
> > > Hi Stratos,
> > >
> > > Yes, your results show some improvements. BUT if performance is the
> > > only thing
> > > we were looking for, then we will never use ondemand governor but
> > > performance
> > > governor.
> > >
> > > I suspect this little increase in performance must have increased
> > > power numbers
> > > too (significantly). So, if you can get numbers in the form of
> > > power/performance
> > > with and without your patch, it will be great.
> > >
> > > --
> > > viresh
> >
> > I run some more tests. I increased the number of iterations to 100
> > (from 20).
> > I also test for counter 1,000,000 (~4200us), 5,000,000 (~10000us),
> > 15,000,000 (~30000us).
> >
> > This time, I also extracted statistics from cpufreq_stats driver. I
> > think this will be an
> > indication for power consumption. Below the results and attached the
> > program I used for to
> > get these numbers.
>
> Any comments would be appreciated.
>
> Thanks,
> Stratos

Ping.

Thanks,
Stratos
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