Application Memory Statistic (Alpha)#

The service systematically collects heap and stack usage data from active threads across various configurations involving FreeRTOS, MicriumOS, and different toolchains such as GCC and IAR. This critical information is then relayed to the Real-Time Transfer (RTT) console. To ensure accurate reporting, proper RTT setup is essential. The component includes a warning mechanism that provides hints about missing or incorrect configurations.

Within the component configuration, you can set the service thread parameters, the update period time, the maximum count of trackable threads, and enable heap usage statistics. A common scenario involves increasing the measurable thread stack size and the application heap size before beginning testing.

Based on the measurement results, adjustments can be made to the appropriate thread's stack and the application heap size. Stack size is calculated using the highest watermarks, and the last result always displays the maximum values.

The following RTT log demonstrates the component's operation:

[APP_OS_STAT][AppMain] Used/Tot: 584/1024 (58%)
[APP_OS_STAT][Ping] Used/Tot: 232/1024 (23%)
[APP_OS_STAT][WisunLedTask] Used/Tot: 192/320 (64%)
[APP_OS_STAT][AppOsStatThread] Used/Tot: 728/1024 (72%)
[APP_OS_STAT][Wi-SUN Event Task] Used/Tot: 500/2000 (25%)
[APP_OS_STAT][Wi-SUN Task] Used/Tot: 1164/2000 (58%)
[APP_OS_STAT][CoAP-Notification-Service] Used/Tot: 208/1024 (20%)
[APP_OS_STAT][CoAP-RHND-Service] Used/Tot: 240/1024 (24%)
[APP_OS_STAT][CLI instance vcom] Used/Tot: 340/1600 (21%)
[APP_OS_STAT][Kernel's Stat Task] Used/Tot: 188/1024 (18%)
[APP_OS_STAT][heap]  addr 0x2000BF80   Used/Tot: 65560/475264 (13%)

Modules#

Configurations