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Simics is not supported. As such, the sample project README.txt files must not provide instructions on how to execute an image using Simics. Change-Id: I6cc09169902b5e10f50799c280d0bbc63f1ae624 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com> |
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| Makefile | ||
| prj.conf | ||
| README.txt | ||
Title: latency measure
Description:
This benchmark measures the latency of selected capabilities of VxMicro
nanokernel features.
IMPORTANT: The results below were generated using a simulation environment,
and may not reflect the results that will be generated using other
environments (simulated or otherwise).
--------------------------------------------------------------------------------
Building and Running Project:
This nanokernel project outputs to the console. It can be built and executed
on QEMU as follows:
make pristine
make nanokernel.qemu
--------------------------------------------------------------------------------
Sample Output:
|-----------------------------------------------------------------------------|
| VxMicro Nanokernel Latency Benchmark |
|-----------------------------------------------------------------------------|
| tcs = timer clock cycles: 1 tcs is N nsec |
|-----------------------------------------------------------------------------|
| 1- Measure time to switch from fiber to ISR execution |
| switching time is NNNN tcs = NNNNN nsec |
|-----------------------------------------------------------------------------|
| 2- Measure time to switch from ISR back to interrupted fiber |
| switching time is NNNN tcs = NNNNN nsec |
|-----------------------------------------------------------------------------|
| 3- Measure time from ISR to executing a different fiber (rescheduled) |
| switching time is NNNN tcs = NNNNN nsec |
|-----------------------------------------------------------------------------|
| 4- Measure average context switch time between fibers |
| Average context switch time is NNNN tcs = NNNNN nsec |
|-----------------------------------------------------------------------------|
| 5- Measure average time to lock then unlock interrupts |
| 5.1- When each lock and unlock is executed as a function call |
| Average time for lock then unlock is NNNN tcs = NNNN nsec |
| |
| 5.2- When each lock and unlock is executed as inline function call |
| Average time for lock then unlock is NNN tcs = NNNN nsec |
|-----------------------------------------------------------------------------|
| E N D |
|-----------------------------------------------------------------------------|