There have been reports that it was possible to enable AVX512 on the big cores with the little ones enabled [0] by toggling some bits in the MSR. For a first s

There have been reports that it was possible to enable AVX512 on the big cores with the little ones enabled [0] by toggling some bits in the MSR. For a first step it would have been enough to manually pin threads to the big cores for adventurous users, but Linux already tacks which threads use AVX (since it comes with a clock penalty, so you want to isolate them if possible), it's not unreasonable to think that auto-setting CPU mask based on that should be possible too. [0] https://lkml.org/lkml/2021/12/2/1059 https://lkml.org/lkml/2021/12/2/1059