1701951 - Record whether a GC slice is running in idle time

Status: RESOLVED DUPLICATE of bug 1752646

(Core :: JavaScript: GC, enhancement, P3)

Description

[Steve Fink [:sfink] [:s:]]

I often infer whether a GC slice is running during idle time by its budget (49ms or close to it is a long idle period; I think 10ms and 5ms are inter-frame idle). It would be better to record it explicitly as a record of the scheduling behavior.

It could perhaps be 3 possibilities: short idle, refresh driver idle, non-idle?

Given how much of GC happens in idle time these days, we could go further and color the non-idle slices differently in the marker view.

Comment 1

[Steve Fink [:sfink] [:s:]]

The GC slice markers now describe their budget with "(idle)" in this case. Or "(started idle but extended)".