On Wed, Jun 12, 2019 at 4:45 AM Doug Smythies <dsmythies@xxxxxxxxx> wrote: > > Hi, > > So, currently there seems to be 3 issues in this thread > (and I am guessing a little, without definitive data): > > 1.) On your system Kernel 5.4-rc2 (or 4) defaults to the intel_pstate CPU frequency > scaling driver and the powersave governor, but kernel 4.6 defaults to the > acpi-cpufreq CPU frequency scaling driver and the ondemand governor. Which means that intel_pstate works in the active mode by default and so it uses its internal governor. That governor is more performance-oriented than ondemand and it very well may cause more power to be allocated for the processor - at the expense of the GPU. The lower-than-expected frame rate may result from that, in principle. One way to mitigate that might be to use intel_pstate in the passive mode (pass intel_pstate=passive to the kernel in the command line) along with either ondemand or schedutil as the governor.
