Title: Microkernel Object Performance
Description:
AppKernel is used to measure the performance of microkernel events, mutexes,
semaphores, FIFOs, mailboxes, pipes, memory maps, and memory pools.
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Building and Running Project:
This project outputs to the console. It can be built and executed
on QEMU as follows:
make run
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Troubleshooting:
Problems caused by out-dated project information can be addressed by
issuing one of the following commands then rebuilding the project:
make clean # discard results of previous builds
# but keep existing configuration info
or
make pristine # discard results of previous builds
# and restore pre-defined configuration info
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Sample Output:
|-----------------------------------------------------------------------------|
| S I M P L E S E R V I C E M E A S U R E M E N T S | nsec |
|-----------------------------------------------------------------------------|
|-----------------------------------------------------------------------------|
| enqueue 1 byte msg in FIFO | NNNNNN|
| dequeue 1 byte msg in FIFO | NNNNNN|
| enqueue 4 bytes msg in FIFO | NNNNNN|
| dequeue 4 bytes msg in FIFO | NNNNNN|
| enqueue 1 byte msg in FIFO to a waiting higher priority task | NNNNNN|
| enqueue 4 bytes in FIFO to a waiting higher priority task | NNNNNN|
|-----------------------------------------------------------------------------|
| signal semaphore | NNNNNN|
| signal to waiting high pri task | NNNNNN|
| signal to waiting high pri task, with timeout | NNNNNN|
| signal to waitm (2) | NNNNNN|
| signal to waitm (2), with timeout | NNNNNN|
| signal to waitm (3) | NNNNNN|
| signal to waitm (3), with timeout | NNNNNNN|
| signal to waitm (4) | NNNNNNN|
| signal to waitm (4), with timeout | NNNNNNN|
|-----------------------------------------------------------------------------|
| average lock and unlock mutex | NNNNNN|
|-----------------------------------------------------------------------------|
| average alloc and dealloc memory page | NNNNNN|
|-----------------------------------------------------------------------------|
| average alloc and dealloc memory pool block | NNNNNN|
|-----------------------------------------------------------------------------|
| Signal enabled event | NNNNNN|
| Signal event & Test event | NNNNNN|
| Signal event & TestW event | NNNNNN|
| Signal event with installed handler |
| Handler responds OK |
|-----------------------------------------------------------------------------|
| M A I L B O X M E A S U R E M E N T S |
|-----------------------------------------------------------------------------|
| Send mailbox message to waiting high priority task and wait |
| repeat for 128 times and take the average |
|-----------------------------------------------------------------------------|
| size(B) | time/packet (nsec) | KB/sec |
|-----------------------------------------------------------------------------|
| N| NNNNNN| N|
| N| NNNNNN| NN|
| NN| NNNNNN| NN|
| NN| NNNNNN| NN|
| NN| NNNNNN| NN|
| NNN| NNNNNN| NNN|
| NNN| NNNNNN| NNN|
| NNN| NNNNNN| NNN|
| NNNN| NNNNNNN| NNN|
| NNNN| NNNNNNN| NNNN|
| NNNN| NNNNNNN| NNNN|
| NNNN| NNNNNNN| NNNN|
|-----------------------------------------------------------------------------|
| message overhead: NNNNNN nsec/packet |
| raw transfer rate: NNNN KB/sec (without overhead) |
|-----------------------------------------------------------------------------|
| P I P E M E A S U R E M E N T S |
|-----------------------------------------------------------------------------|
| Send data into a pipe towards a receiving high priority task and wait |
|-----------------------------------------------------------------------------|
| matching sizes (_ALL_N) |
|-----------------------------------------------------------------------------|
| size(B) | time/packet (nsec) | KB/sec |
|-----------------------------------------------------------------------------|
| put | get | no buf | small buf| big buf | no buf | small buf| big buf |
|-----------------------------------------------------------------------------|
| N| N| NNNNNNN| NNNNNNN| NNNNNNN| N| N| N|
| NN| NN| NNNNNNN| NNNNNNN| NNNNNNN| NN| NN| NN|
| NN| NN| NNNNNNN| NNNNNNN| NNNNNNN| NN| NN| NN|
| NN| NN| NNNNNNN| NNNNNNN| NNNNNNN| NN| NN| NN|
| NNN| NNN| NNNNNNN| NNNNNNN| NNNNNNN| NN| NN| NN|
| NNN| NNN| NNNNNNN| NNNNNNN| NNNNNNN| NNN| NNN| NNN|
| NNN| NNN| NNNNNNN| NNNNNNN| NNNNNNN| NNN| NNN| NNN|
| NNNN| NNNN| NNNNNNN| NNNNNNN| NNNNNNN| NNN| NNN| NNN|
| NNNN| NNNN| NNNNNNN| NNNNNNN| NNNNNNN| NNN| NNN| NNN|
| NNNN| NNNN| NNNNNNN| NNNNNNN| NNNNNNN| NNNN| NNNN| NNNN|
|-----------------------------------------------------------------------------|
| non-matching sizes (1_TO_N) to higher priority |
|-----------------------------------------------------------------------------|
| size(B) | time/packet (nsec) | KB/sec |
|-----------------------------------------------------------------------------|
| put | get | no buf | small buf| big buf | no buf | small buf| big buf |
|-----------------------------------------------------------------------------|
| N| NNNN| NNNNNNN| NNNNNNN| NNNNNNN| N| N| N|
| NN| NNNN| NNNNNNN| NNNNNNN| NNNNNNN| NN| NN| NN|
| NN| NNNN| NNNNNNN| NNNNNNN| NNNNNNN| NN| NN| NN|
| NN| NNN| NNNNNNN| NNNNNNN| NNNNNNN| NN| NN| NN|
| NNN| NNN| NNNNNNN| NNNNNNN| NNNNNNN| NN| NN| NN|
| NNN| NNN| NNNNNNN| NNNNNNN| NNNNNNN| NN| NN| NN|
| NNN| NN| NNNNNNNN| NNNNNNN| NNNNNNN| NN| NN| NN|
| NNNN| NN| NNNNNNNN| NNNNNNNN| NNNNNNNN| NN| NN| NN|
| NNNN| NN| NNNNNNNNN| NNNNNNNNN| NNNNNNNNN| NN| NN| NN|
| NNNN| N| NNNNNNNNN| NNNNNNNNN| NNNNNNNNN| N| N| N|
|-----------------------------------------------------------------------------|
| non-matching sizes (1_TO_N) to lower priority |
|-----------------------------------------------------------------------------|
| size(B) | time/packet (nsec) | KB/sec |
|-----------------------------------------------------------------------------|
| put | get | no buf | small buf| big buf | no buf | small buf| big buf |
|-----------------------------------------------------------------------------|
| N| NNNN| NNNNNNN| NNNNNN| NNNNNN| N| N| N|
| NN| NNNN| NNNNNNN| NNNNNNN| NNNNNN| NN| NN| NN|
| NN| NNNN| NNNNNNN| NNNNNNN| NNNNNN| NN| NN| NN|
| NN| NNN| NNNNNNN| NNNNNNN| NNNNNN| NN| NN| NN|
| NNN| NNN| NNNNNNN| NNNNNNN| NNNNNNN| NN| NN| NNN|
| NNN| NNN| NNNNNNN| NNNNNNN| NNNNNNN| NN| NN| NNN|
| NNN| NN| NNNNNNNN| NNNNNNNN| NNNNNNN| NN| NN| NNN|
| NNNN| NN| NNNNNNNN| NNNNNNNN| NNNNNNN| NN| NN| NNN|
| NNNN| NN| NNNNNNNNN| NNNNNNNNN| NNNNNNN| NN| N| NNN|
| NNNN| N| NNNNNNNNN|NNNNNNNNNN| NNNNNNN| N| N| NNNN|
|-----------------------------------------------------------------------------|
| END OF TESTS |
|-----------------------------------------------------------------------------|
PROJECT EXECUTION SUCCESSFUL
8f7f62869a