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zephyr/tests/benchmarks/app_kernel
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Andy Ross 46891f0213 tests/kernel/benchmarks: Disable TICKLESS_KERNEL for "no tick" tests 
These tests was written to try to eliminate timer interrupts, but the
mechanism chosen (setting TICKS_PER_SECOND to 1) is dangerously
susceptible to overflow conditions on systems with fast cycle counters
and high timeout durations.

Actually the tests pass just fine if you use a conventional tick rate
and use a tickless-capable driver (which eliminates interrupts too,
which is the whole point), but there's no easy way in kconfig to do an
"if" to select that condition for capable systems only.  Just disable
tickless to keep the same behavior.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
..
src sys_clock.h: Remove sys_clock_ticks_per_sec() 2018-10-16 15:03:10 -04:00
CMakeLists.txt samples, tests: Use semi-accurate project names 2018-10-27 21:31:25 -04:00
prj_fp.conf tests/kernel/benchmarks: Disable TICKLESS_KERNEL for "no tick" tests 2018-11-13 17:10:07 -05:00
prj.conf tests/kernel/benchmarks: Disable TICKLESS_KERNEL for "no tick" tests 2018-11-13 17:10:07 -05:00
README.txt
testcase.yaml tests: fix test identifiers 2018-06-07 18:01:49 -05:00

README.txt 

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.

--------------------------------------------------------------------------------

Building and Running Project:

This project outputs to the console. It can be built and executed
on QEMU as follows:

    make run

--------------------------------------------------------------------------------

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

--------------------------------------------------------------------------------

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