Thanks Yahia for sharing that. Can you explain a bit more as I don't have much experience with that.
Let's say I have some algo to decide the cpu freq in gem5 SRC/CPU/O3/commit_impl.hh... How can I set the file you mentioned to that freq from here?? Thanks, On Apr 15, 2015 2:53 AM, "Yahia Benmoussa" <yahia.benmou...@gmail.com> wrote: > Hello, > > You have to enable userspace governor in your kernel then you can scale > the CPU frequency by setting > /sys/devices/system/cpu/cpu*/cpufreq/scaling_setspeed file. It should work. > > Regards. > Yahia > > > 2015-04-15 4:00 GMT+02:00 Nimish Girdhar <nimi...@tamu.edu>: > >> Hello all, >> >> I am working on a project where I have to use DVFS to change the >> frequency of cores based on my evaluation of some counters that I inserted >> in the gem5 o3 cpu src code. >> >> I followed the guidelines given on >> http://www.m5sim.org/Running_gem5#Experimenting_with_DVFS . >> But with these steps, the kernel will be the one who decides the >> performance levels of the cores at different point of time. But in my case >> I want to decide the levels based on some counters as mentioned above. >> >> Has anybody tried anything similar to that? I want to know how can I >> access and update the dvfs handler registers from within the cpu src code. >> >> Any help will be appreciated. >> >> Thanks, >> >> -- >> Warm regards >> Nimish Girdhar >> Department of Electrical and Computer Engineering >> Texas A&M University >> >> _______________________________________________ >> gem5-users mailing list >> gem5-users@gem5.org >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >> > > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >
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