Re: [pypy-dev] A question about RPython's JIT in scheduler

Hi, For future reference: we discussed this question on IRC yesterday, Feb 4th (see logs). Let me repeat here the main answer: the JIT works well because you're using a scheme where some counter is decremented (and the soft-thread interrupted when it reaches zero) only once in each app-level loop. The soft-thread switch is done by returning to some scheduler, which will resume a different soft-thread by calling it. It means the JIT can still compile each of the loops as usual, with the generated machine code containing the decrease-and-check-for-zero operation which, when true, exits the assembler. A bientôt, Armin.