So your assertion is that developers should get in a big huddle to decide how they’re going to consume L1 between applications? Which of course no dev has control over since the OS determines what runs and when.
You can make your time in the CPU more efficient by thinking of the cache and the branch predictor, or you can say “nothing I do matters because the OS schedules things how it wants.” Up to you I guess, but I know which of those approaches performs significantly better.
