CPU frequency up to 2GHz?

VIM2 Linux Kernel
24

Thank you!

Some interesting stuff! :slight_smile:

  • The ‘big’ cluster with this kernel is cluster 0 unlike all real big.LITTLE implementations out there where the little cluster is 0. Therefore in sbc-bench monitoring output big.LITTLE column shows frequencies wrong
  • Willy Tarreau’s tool again confirms that the 1512 MHz the kernel is talking about are just 1414 MHz in reality
  • tinymembench numbers for both clusters are slightly different but that’s most probably just related to different clockspeeds the 2 A53 clusters are allowed to run at. I wonder how it would look like when doing echo 1000000> /sys/devices/system/cpu/cpu${1}/cpufreq/scaling_max_freq ; taskset -c 0 /tmp//tinymembench/tinymembench (forcing the ‘big’ cluster also to 1GHz and then executing tinymembench there)
  • Little throttling happened when running the 7-zip benchmark single threaded on each cluster. But since your image relies on zram for swap this should’ve not affected results

I added your numbers to results. Would be very interesting to repeat the test with a Debian Stretch and/or 4.9 kernel (if that one is still in use – I have not kept track with meson64 kernel situation)