1881627 - Explore other options for when to increase timer resolution on Windows

Status: NEW

(Core :: Performance Engineering, enhancement, P3)

Description

[Justin Link]

In bug 1826224 we introduced functionality to enable high-resolution timers on Windows when not on battery power. High-res timers can result in an improvement to performance and responsiveness but also, because some sites are written in a way that relies on them, the lack of them can make some sites function "incorrectly".

The purpose of this ticket is look for other options on how to determine when to request high-resolution timers rather than just tie them to whether the system in question is running on battery power. In particular, I think that we can robustly make this determination by looking at the upcoming timers in the timer list and requesting high-res timers iff there are timers that need to fire precisely.