Why is the sleep duration taking so long in some cases?
Hi, I need to create a infinite (but breakable) cycle where I can slow down the cycle by awaiting promises inside. While cycle should be able to do this, but as you can see in the image, the duration is all over the place.
Why is this happening? Is there a way to make it close to the original sleep duration?
async function slowLoop() {
while (true) {
console.time('sleepDuration')
await new Promise(resolve => setTimeout(resolve, 1000))
console.timeEnd('sleepDuration')
}
}
It is not suppose to deviate too much. setTimeout will execute whenever possible at / after the given timeout duration. I am getting between 1006 to 1023 on my sysyem
Is your device performance starved during this test?
I tried it in about:blank but it does the same. Maybe there is some extension in my browser that slows it down (somehow). Im running tampermonkey but it's not active on any pages I tried this on.
I ran the script in nodejs and everything works perfectly, the sleep time is very close to the original value so it's definitely something inside browser that causes it to lag.