JavaScript中是否有最小可接受的计时器间隔？

Question

Given:

window.setInterval(function () {
    //test for a change in the window state and, if there has been one:
    //make some changes
}, X); //repeat every X milliseconds

Is there a minimum acceptable value for X?

Some reading lead me to this interesting article, which suggests that, even if X = 1 , in reality the browser will run the interval only 10-15ms. But my question is more in regards to performance. I see two conflicting realities as X grows smaller:

• As X grows smaller, perceived "responsiveness" grows - a positive result.
• As X grows smaller, more system processing power is consumed - a negative result.

If system processing power was a non-issue, the obvious answer would be X = 1 because the moment the user changes the window, there is a more or less immediate response.

I know that the knee-jerk reaction is "well it depends how depleted system resources are, and how complicated the function is." But there must be some way to determine a reasonable lower bound. For example, is there a test suite I should be running on many system/browser combinations to know that X isn't so low that it is consuming to much processing power? Or is the answer "no value for x can possibly consume enough system resources to be noticeable," based on some fact about javascript intervals that I don't know?

Knowing the answer requires such specific details, a more refined question would be:

How does one go about determining the minimum value for X given any project/function combination? Is there a definitive method?

Answer 1

运行该函数并计时执行时间，当手中有执行时间时，将该值放入setInterval +一些空闲时间。