More accurate alternative to setInterval()?

[teal slate]

Hey, I'm writing a server for a multiplayer game with Bun and I'm wondering if there is an alternative to setInterval that does not vary by ~3ms. I've found some stuff online about using setImmediate

Also, I'll be running a WebSocket server at the same time. Will heavy traffic with lots of messages impact the accuracy of the timer?

Thanks!

[trail zenith]

setInterval is up to the system to decide ultimately

setImmediate runs on the next microtask tick

setTimeout(cb, 0) runs on the next task queue

setImmediate runs sooner than setTimeout(cb, 0)

[teal slate]

So most accurate is an infinite setImmediate hat checks something like performance.now() to see if the right number of milliseconds have passed?

[trail zenith]

yes but that is effectively a while(true) loop

[teal slate]

I'm not too experienced with the event loop - will this have a large performance impact

[trail zenith]

with a slight delay

your best bet is to schedule something like 2x or 3x more often than necessary