Latency Measurements #################### This benchmark measures the latency of selected kernel capabilities, including: * Measure time to switch from ISR back to interrupted thread * Measure time from ISR to executing a different thread (rescheduled) * Measure average time to signal a semaphore then test that semaphore * Measure average time to signal a semaphore then test that semaphore with a context switch * Measure average time to lock a mutex then unlock that mutex * Measure average context switch time between threads using (k_yield) * Measure average context switch time between threads (coop) * Time it takes to suspend a thread * Time it takes to resume a suspended thread * Time it takes to create a new thread (without starting it) * Time it takes to start a newly created thread Sample output of the benchmark:: *** Booting Zephyr OS build zephyr-v2.3.0-2257-g0f420483db07 *** START - Time Measurement Timing results: Clock frequency: 120 MHz Average thread context switch using yield : 420 cycles , 3502 ns Average context switch time between threads (coop) : 429 cycles , 3583 ns Switch from ISR back to interrupted thread : 670 cycles , 5583 ns Time from ISR to executing a different thread : 570 cycles , 4750 ns Time to create a thread (without start) : 360 cycles , 3000 ns Time to start a thread : 545 cycles , 4541 ns Time to suspend a thread : 605 cycles , 5041 ns Time to resume a thread : 660 cycles , 5500 ns Time to abort a thread (not running) : 495 cycles , 4125 ns Average semaphore signal time : 195 cycles , 1626 ns Average semaphore test time : 62 cycles , 518 ns Semaphore take time (context switch) : 695 cycles , 5791 ns Semaphore give time (context switch) : 845 cycles , 7041 ns Average time to lock a mutex : 79 cycles , 659 ns Average time to unlock a mutex : 370 cycles , 3085 ns =================================================================== PROJECT EXECUTION SUCCESSFUL