High CPU usage even when idle
- iTerm2 version: Build 3.3.8beta4
- OS version: macOS 10.15.2
Detailed steps to reproduce the problem:
- Leave iTerm2 idle on the foreground. The CPU usage should be close to 0%. It instead averages over 5% according to Activity Monitor.
- Leave iTerm2 idle on the background. The CPU usage should be even closer to 0%. It instead tends to float between 0 and >1%.
- Run some not-too-active utility in an iTerm2 window: for example,
top
on a 120x25 window, orprettyping
, both updating at about 1 Hz. CPU goes over 8% for iTerm.
This is bad enough that even GUI utils use less CPU than a lesser CLI util on iTerm2.
Attaching preferences plist, Activity Monitor sample with iTerm2 idle in the background, and with iTerm2 idle in the foreground (but this last one needed quick switching between the Activity Monitor and iTerm2, so for a moment Activity Monitor was still on the foreground)
com.googlecode.iterm2.plist foreground_mostly.txt background.txt