POSIX threads, used by C/C++ and a lot of other language runtimes is somewhat platform independent and provides for affinity, priority and policy controls. For

POSIX threads, used by C/C++ and a lot of other language runtimes is somewhat platform independent and provides for affinity, priority and policy controls. For starters: https://man7.org/linux/man-pages/man3/pthread_setschedparam.3.html https://man7.org/linux/man-pages/man3/pthread_setschedparam.... None of the standard attributes (AFAIK) are directly "put me on a tiny core", but they frequently work hand in hand with those decisions. Lower your priority and the scheduler dumps you on some low clocked small core kinds of effects when its not busy. Or if you have machine knowledge just set your core affinity with pthread_setaffinity_np() which as the extension states is non-portable but can directly translate to "run me on a tiny core" if the right mask is provided. At least in C/C++ most if not all modern platforms provide these kinds of controls and metadata and while the API might change a bit writing a couple versions of schedule_me_on_a_tiny_core() for each target platform is fairly trivial.