Windows Timer Resolution: The Great Rule Change
https://randomascii.wordpress.com/2020/10/04/windows-timer-resolution-the-great-rule-change/ [randomascii.wordpress.com]
2020-10-11 22:01
The behavior of the Windows scheduler changed significantly in Windows 10 2004, in a way that will break a few applications, and there appears to have been no announcement, and the documentation has not been updated. This isn’t the first time this has happened, but this change seems bigger than last time.
The short version is that calls to timeBeginPeriod from one process now affect other processes less than they used to, but there is still an effect.