LP-AM263: How can I trace CPU and memory utilization?

Hi Charlie, 

CPU Load trace:

The below code snippet will be useful to calculate CPU load for your program. You can change the time interval (default I've shared is for 5 seconds, i.e., CPU load will be printed every 5 seconds). The CPU load is calculated with respect to the time IDLE task was running.

#include "FreeRTOS.h"
#include "task.h"
#include <kernel/dpl/TaskP.h>
#include <kernel/dpl/ClockP.h>

TaskStatus_t gTaskStatusArr[32] ={0};
uint32_t gNumTask = 0U;

void print_cpu_load()
{
    static uint32_t start_time = 0;
    uint32_t print_interval_in_secs = 5;
    uint32_t cur_time = ClockP_getTimeUsec()/1000;
    uint32_t totalRunTime = 0U;

    if(start_time==0)
    {
        start_time = cur_time;
    }
    else
    if( (cur_time-start_time) >= (print_interval_in_secs*1000) )
    {
        uint32_t cpu_load = TaskP_loadGetTotalCpuLoad();

        DebugP_log(" %6d.%3ds : CPU load = %3d.%02d %%\r\n",
            cur_time/1000, cur_time%1000,
            cpu_load/100, cpu_load%100 );

        start_time = cur_time;
        gNumTask = uxTaskGetSystemState(&gTaskStatusArr[0], 32U, &totalRunTime);
        TaskP_loadResetAll();
    }
}

Memory Trace:

To get the memory usage statistics of heap, you can use APIs provided by FreeRTOS DPL (HeapP.c)

Make sure to include the FreeRTOS library and the required HeapP files, then call 

void   HeapP_getHeapStats( HeapP_Object *heap, HeapP_MemStats * pHeapStats )

• Size of largest free block in heap
• Size of smallest free block in heap
• number of free blocks in heap
• Available free Heap space in bytes
• Number of successful allocations, frees, 
• Minimum ever free bytes remaining

Regards,
Shaunak