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How to measure CPU load in TI Hercules TMS570LS3137 running FreeRTOS

Posted by dinodavid4 on June 23, 2016

Hi,

I have generated a FreeRTOS code through Halcogen code generator tool given by TI. I have to measure the CPU load, memory usage, Stack usage, and other timing parameters for my applications (Totally 5 tasks). Is there anyway to measure these parameter? I am using Code Composer Studio v6.1.0 (CCS) I came to know that Tracealyzer from percepio can be used to measure these parameters. Can anybody let me know how to incorporate in CCS ? Is there any user guide ?

Thanks in advance


How to measure CPU load in TI Hercules TMS570LS3137 running FreeRTOS

Posted by rtel on June 23, 2016

I have to measure the CPU load,

You can measure the load of each task using the run time stats feature described on this page: http://www.freertos.org/rtos-run-time-stats.html

Or more simply, you can measure the idle time by using an idle task hook function to add code into the idle task, or a traceTASKSWITCHEDIN/traceTASKSWITCHEDOUT macro to determine when and for how long the idle task is running. The handle of the idle task being obtainable using the xTaskGetIdleTaskHandle() API function.

memory usage,

If you are only using static memory allocation, then the linker and map file will tell you this. Otherwise you can use the xPortGetMinimumEverFreeHeapSize() function to see how much heap has been consumed.

Stack usage,

http://www.freertos.org/uxTaskGetStackHighWaterMark.html

You can also define a stack overflow hook function to detect stack overflows.

I came to know that Tracealyzer from percepio can be used to measure these parameters. Can anybody let me know how to incorporate in CCS ?

FreeRTOS+Trace can be used with any development tools, although tools that provide specific integration do make life easier.

Is there any user guide ?

Yes.


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