Messages in this thread | | | Date | Tue, 09 Apr 2013 19:56:53 +0300 | From | Stratos Karafotis <> | Subject | Re: [PATCH v3 linux-next] cpufreq: ondemand: Calculate gradient of CPU load to early increase frequency |
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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
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