Run a loop for a set amount of time

[lmiq]

Is it necessary for sleep to allocate?

I was optimizing a complex block of multithreaded code and discovered that sleep was allocating. julia> @btime sleep(0) 1.720 μs (5 allocations: 144 bytes) I was pretty surprised, so checked the source which is basically wait(Timer(sec)), so it’s allocating a mutable struct for that Timer. Is there a more efficient alternative to that to sleep for a very short time? I found a reference to usleep but I’m on Windows so that’s not an option for me. I need a thread to sleep briefly (millisecon…