[LEDE-DEV] LEDE new image on gw5520

[Koen Vandeputte]

On 2017-11-10 12:57, Outback Dingo wrote:
> Yeah i can do tthat, as a side note, do you know anything about
> cpu_scaling or thermal management on this board maybe ? it runs
> terribly hot

<snip>


I haven't tested it before, but setting it seems to alter the frequency 
(at least cosmetically ..)
Only setting cpu0 seems to also set the other cpu's


[ Node 20 | node-20 ] cd /
[ Node 20 | node-20 ] echo performance > 
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor



[ Node 20 | node-20 ] cat 
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
performance

[ Node 20 | node-20 ] cat 
/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
792000

[ Node 20 | node-20 ] cat 
/sys/devices/system/cpu/cpu1/cpufreq/scaling_cur_freq
792000



[ Node 20 | node-20 ] echo powersave > 
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
[ Node 20 | node-20 ] cat 
/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
396000

[ Node 20 | node-20 ] cat 
/sys/devices/system/cpu/cpu1/cpufreq/scaling_cur_freq
396000



Available governors:
- performance (default.  selected in kernel config)
- powersave
- ondemand
- userspace
- conservative


"ondemand" seems the interesting for practical use as it *should* 
dynamically alter clock freq on the fly ..


You could also throw a bone at Gateworks Support if they ever tested 
this in-depth. :)

Koen