HenrikHolst
commented
1 month ago The main question is why only some are reporting a max of 5.8Ghz while the other P cores are reporting a max of 5.5Ghz. Are only some cores boostable on the 13900?
edit: ok so in the current code we used 5% as the safety margin for boost and that is too small here, 10% works fine but ofc is that enough for future cpus or should be do this some other way.
Anyway quick fix here is to change line 128 in daemon/gamemode-cpu.c from
unsigned long long cutoff = (freq * 5) / 100;
to
unsigned long long cutoff = (freq * 10) / 100;
wereii
As the title says, on my machine with an Intel 13900kf processor, automatic core pinning (
pin_cores=yes, or commented out ie the default) will pick out the cpus 8-11, which is just 2 cores with 4 threads in total.Quick look around the code and in issues tells me this is currently basically by design, at least going by the "picking cores with most maxfreq", though because of the rather atypical max freq spread between even the p-cores on this processor it will pin games to CPU 8-11 (cores 4 and 5).
In my case, I've noticed very low fps in Helldivers 2 ~70 FPS instead of ~140 with no pinning.
I can already see that there is a check that won't try pinning less then 4 cores. I guess it's not really feasible to make the automatic pinning algorithm universal across all the possibilities with p/e cores but one idea here would be to also log a warning if the autopinning results in less then X% (let's say 10%) cores of the total core count ?