| Title: Kernel Object Performance |
| |
| Description: |
| |
| The app_kernel test is used to measure the performance of the following |
| kernel objects: message queues, semaphores, memory slabs, mailboxes and pipes. |
| |
| When the userspace version is selected (CONF_FILE=prj_user.conf), this |
| benchmark will execute with four configurations (kernel/kernel, kernel/user, |
| user/kernel and user/user). However, any configuration involving user threads |
| will omit both the memory slabs and mailbox tests. |
| |
| -------------------------------------------------------------------------------- |
| |
| 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 192 bytes msg in MSGQ | NNNNNN| |
| | dequeue 192 bytes msg in MSGQ | NNNNNN| |
| | enqueue 1 byte msg in MSGQ to a waiting higher priority task | NNNNNN| |
| | enqueue 4 bytes in MSGQ to a waiting higher priority task | NNNNNN| |
| | enqueue 192 bytes in MSGQ 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| |
| |-----------------------------------------------------------------------------| |
| | average lock and unlock mutex | NNNNNN| |
| |-----------------------------------------------------------------------------| |
| | average alloc and dealloc memory page | NNNNNN| |
| |-----------------------------------------------------------------------------| |
| | 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 |