GlimmerStatsBarA quick look at what your CPU is doing.
Keep a whole-Mac reading nearby, then look at the process list when you want to know which app is busy.
See CPU usage in the menu bar
GlimmerStatsBar (mac stats bar) can show CPU as a percentage, bar or graph. The reading uses your Mac's total CPU capacity, with a whole-machine range from 0% to 100%.
Give a busy moment some context
A render, download, build or video call can make activity rise. A single high reading is not enough to identify a problem. Look at the recent pattern and what your Mac is doing at the time. GlimmerStatsBar (mac stats bar) has 5, 15 and 60-minute history views.
Find the app behind the activity
Open GlimmerStatsBar (mac stats bar)’s Apps tab to sort CPU and memory use and follow a selected app’s history. You can include background processes when needed, or open Activity Monitor for another view.
Understand a gap
CPU needs a fresh interval to calculate activity. The first reading, sleep or a long sampling gap can leave a dash or a gap in the chart. Keeping that gap visible avoids making an old reading look current.
Read more from Apple
Questions you might have
Does a CPU monitor make a Mac faster?
A monitor shows activity and helps you find the app behind it. GlimmerStatsBar (mac stats bar)’s Apps tab gives you that context; it does not automatically optimise your Mac or stop apps.
Why does the first CPU reading show a dash?
The app needs two samples to calculate activity over an interval. Give it a moment to collect a fresh reading; sleep and longer gaps can also require a new interval.