CPU utilization in freeRtos

Hans,

Haven't tried this myself but i think you're looking for something like this:

http://www.freertos.org/rtos-run-time-stats.html

is that correct?

thank you for this reply.However, i do not want to this. I want to see tick count and I want to determine executing time.But exactly time..İf I use rti module(not used FreeRtos), I can determine this with rtiGetCurrentTick function. In Freertos , how can I do this ?

Hans,

What are you wanting to measure exactly?  If you just read the start/end times of a task from the RTI then you'll not necessarily get the CPU load due to that task;  because if the task is pre-empted you will also get the execution time of the code that prempted your task in question.

For example, if you look at the user's guide "Using the FreeRTOS Real Time Kernel" figure 3 shows two tasks:

If you read the counter at the beginning and end of Task1 - you'll also get the first and 2nd executions of Task 2 in this result.  This will be more than just the load of Task 1.   Is that what you want?

Yes. I want to execute time of task1. End(task1)  - Start(task1).. Consequently, Task1 can be pre-empted but not finish. I want to determine    (finish time)  -  (start time) ..

Thank you for helping..