Performance Panel
Turn "is it laggy?" into readable numbers
Aggregates dual-core CPU usage, radio load and memory headroom with trend curves. After adding a feature, if you suspect the device got slower, this page tells you whether compute, radio or memory is the bottleneck.
The page throttles itself: metrics are not recomputed while you are elsewhere, so monitoring does not consume the very resources it measures.
On-screen interface
A recreation of this page on the 2.41-inch AMOLED display (600 Γ 450). Actual interaction and layout follow the latest firmware.
Key capabilities
Dual-core load
CPU0 / CPU1 shown separately to identify single-core hotspots.
Radio load
The cost of WiFi/BLE activity on the whole system is visible.
Memory headroom
Free and largest-free-block side by side to anticipate allocation failures.
Zero extra cost
Sampling stops as soon as you leave the page.
Technical specs
Typical scenarios
Performance regression
Compare load curves under the same conditions before and after a change.
Memory early warning
Intervene early when the largest free block keeps shrinking.
Related commands
page 11 Jump to the performance panel heap Print detailed memory info