42 lines
2.4 KiB
Plaintext
42 lines
2.4 KiB
Plaintext
Title: Latency Measurement
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Description:
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This benchmark measures the latency of selected capabilities
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IMPORTANT: The sample output below was generated using a simulation
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environment, and may not reflect the results that will be generated using other
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environments (simulated or otherwise).
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Sample Output:
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***** BOOTING ZEPHYR OS v1.7.99 - BUILD: Mar 24 2017 22:46:05 *****
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|-----------------------------------------------------------------------------|
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| Latency Benchmark |
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|-----------------------------------------------------------------------------|
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| tcs = timer clock cycles: 1 tcs is 10 nsec |
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|-----------------------------------------------------------------------------|
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| 1 - Measure time to switch from ISR back to interrupted thread |
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| switching time is 12591 tcs = 125910 nsec |
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|-----------------------------------------------------------------------------|
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| 2 - Measure time from ISR to executing a different thread (rescheduled) |
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| switch time is 8344 tcs = 83440 nsec |
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|-----------------------------------------------------------------------------|
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| 3 - Measure average time to signal a sema then test that sema |
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| Average semaphore signal time 63 tcs = 638 nsec |
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| Average semaphore test time 49 tcs = 498 nsec |
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|-----------------------------------------------------------------------------|
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| 4- Measure average time to lock a mutex then unlock that mutex |
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| Average time to lock the mutex 107 tcs = 1078 nsec |
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| Average time to unlock the mutex 92 tcs = 929 nsec |
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|-----------------------------------------------------------------------------|
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| 5 - Measure average context switch time between threads using (k_yield) |
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| Average thread context switch using yield 110 tcs = 1107 nsec |
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|-----------------------------------------------------------------------------|
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| 6 - Measure average context switch time between threads (coop) |
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| Average context switch time is 88 tcs = 882 nsec |
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|-----------------------------------------------------------------------------|
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===================================================================
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PROJECT EXECUTION SUCCESSFUL
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