Fix RUBY_MN_THREADS sleep returning prematurely (#15868)HEADmaster

timer_thread_check_exceed() was returning true when the remaining time
was less than 1ms, treating it as "too short time". This caused
sub-millisecond sleeps (like sleep(0.0001)) to return immediately
instead of actually sleeping.

The fix removes this optimization that was incorrectly short-circuiting
short sleep durations. Now the timeout is only considered exceeded when
the actual deadline has passed.

Note: There's still a separate performance issue where MN_THREADS mode
is slower for sub-millisecond sleeps due to the timer thread using
millisecond-resolution polling. This will require a separate fix to
use sub-millisecond timeouts in kqueue/epoll.

[Bug #21836]

0 files changed, 0 insertions, 0 deletions