I now wonder what should be the average ratio of heavy 512-bit was AVX512 instructions vs lighter 256-bit instructions to avoid getting into permanent L2 mode a

I now wonder what should be the average ratio of heavy 512-bit was AVX512 instructions vs lighter 256-bit instructions to avoid getting into permanent L2 mode and stay at L1. One of the co-authors talks more about the exact limits here: https://www.realworldtech.com/forum/?threadid=179654&curpostid=179654 https://www.realworldtech.com/forum/?threadid=179654&curpost... The quick answer is that on the W-2104 system he tested, you can sustain one FMA every 2 cycles while still remaining in the medium speed L1 state. His avx-turbo tool (https://github.com/travisdowns/avx-turbo https://github.com/travisdowns/avx-turbo) can be used to check the situation for your particular processor.