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`Timer` is ~1ms too slow #57263

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jakobnissen opened this issue Feb 4, 2025 · 0 comments · May be fixed by #57264

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jakobnissen commented Feb 4, 2025

On my computer, Timer is about one millisecond too slow:
E.g:

julia> @btime sleep(0.001)
  2.062 ms (4 allocations: 112 bytes)

This also reproduces in more realistic scenarios where I'm timing a loop which can be assumed to be dominated by sleep.

The code for Timer states:

# libuv has a tendency to timeout 1 ms early, so we need +1 on the timeout (in milliseconds), unless it is zero

Maybe this was fixed in libuv?

The text was updated successfully, but these errors were encountered:

jakobnissen linked a pull request

that will close this issue

Stop compensating for early Timer in libuv #57264

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