On Tuesday, July 7, 2015 at 8:54:29 AM UTC-4, Sunil Agrawal wrote:
>
> If my entire Node.js program is the following
>
> setInterval(function() {}, Infinity)
>
> 'top' shows it consumes 15-20% CPU
>
>
What is happening here is that since `Infinity` is larger than the maximum
allowed timeout value (2147483647 -- 2^31-1), so it changes the value to
1[1], causing the function to execute on *every* tick of the event loop.
Using a value of 100000 is still smaller than the maximum allowed timeout
value, so in that case the function only executes every 100000 milliseconds.
[1]
https://github.com/joyent/node/blob/d38e865fce93c00cb128034202fb1e26987efdbc/lib/timers.js#L208-L210
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