The idle-observers block has at least 3 function calls, and it was entered every time the script went into idle, however, we can save these calls by checking first that there are indeed such observers.
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| @@ -751,7 +751,7 @@ g.mp_event_loop = function mp_event_loop() { · 750 unmodified lines | ||
| 751 | 751 | wait = 0; // poll the next one |
| 752 | 752 | } else { |
| 753 | 753 | wait = process_timers() / 1000; |
| 754 | − if (wait != 0) { | |
| 754 | + if (wait != 0 && iobservers.length) { | |
| 755 | 755 | notify_idle_observers(); // can add timers -> recalculate wait |
| 756 | 756 | wait = peek_timers_wait() / 1000; |
| 757 | 757 | } |