1Title: Kernel Object Performance
2
3Description:
4
5The app_kernel test is used to measure the performance of the following
6kernel objects: message queues, semaphores, memory slabs, mailboxes and pipes.
7
8When the userspace version is selected (CONF_FILE=prj_user.conf), this
9benchmark will execute with four configurations (kernel/kernel, kernel/user,
10user/kernel and user/user). However, any configuration involving user threads
11will omit both the memory slabs and mailbox tests.
12
13--------------------------------------------------------------------------------
14
15Sample Output:
16
17|-----------------------------------------------------------------------------|
18|          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    |
19|-----------------------------------------------------------------------------|
20|-----------------------------------------------------------------------------|
21| enqueue 1 byte msg in FIFO                                       |    NNNNNN|
22| dequeue 1 byte msg in FIFO                                       |    NNNNNN|
23| enqueue 4 bytes msg in FIFO                                      |    NNNNNN|
24| dequeue 4 bytes msg in FIFO                                      |    NNNNNN|
25| enqueue 192 bytes msg in MSGQ                                    |    NNNNNN|
26| dequeue 192 bytes msg in MSGQ                                    |    NNNNNN|
27| enqueue 1 byte msg in MSGQ to a waiting higher priority task     |    NNNNNN|
28| enqueue 4 bytes in MSGQ to a waiting higher priority task        |    NNNNNN|
29| enqueue 192 bytes in MSGQ to a waiting higher priority task      |    NNNNNN|
30|-----------------------------------------------------------------------------|
31| signal semaphore                                                 |    NNNNNN|
32| signal to waiting high pri task                                  |    NNNNNN|
33| signal to waiting high pri task, with timeout                    |    NNNNNN|
34|-----------------------------------------------------------------------------|
35| average lock and unlock mutex                                    |    NNNNNN|
36|-----------------------------------------------------------------------------|
37| average alloc and dealloc memory page                            |    NNNNNN|
38|-----------------------------------------------------------------------------|
39|                M A I L B O X   M E A S U R E M E N T S                      |
40|-----------------------------------------------------------------------------|
41| Send mailbox message to waiting high priority task and wait                 |
42| repeat for  128 times and take the average                                  |
43|-----------------------------------------------------------------------------|
44|   size(B) |       time/packet (nsec)       |          KB/sec                |
45|-----------------------------------------------------------------------------|
46|          N|                          NNNNNN|                               N|
47|          N|                          NNNNNN|                              NN|
48|         NN|                          NNNNNN|                              NN|
49|         NN|                          NNNNNN|                              NN|
50|         NN|                          NNNNNN|                              NN|
51|        NNN|                          NNNNNN|                             NNN|
52|        NNN|                          NNNNNN|                             NNN|
53|        NNN|                          NNNNNN|                             NNN|
54|       NNNN|                         NNNNNNN|                             NNN|
55|       NNNN|                         NNNNNNN|                            NNNN|
56|       NNNN|                         NNNNNNN|                            NNNN|
57|       NNNN|                         NNNNNNN|                            NNNN|
58|-----------------------------------------------------------------------------|
59| message overhead:      NNNNNN     nsec/packet                               |
60| raw transfer rate:           NNNN KB/sec (without overhead)                 |
61|-----------------------------------------------------------------------------|
62|                   P I P E   M E A S U R E M E N T S                         |
63|-----------------------------------------------------------------------------|
64| Send data into a pipe towards a receiving high priority task and wait       |
65|-----------------------------------------------------------------------------|
66|                          matching sizes (_ALL_N)                            |
67|-----------------------------------------------------------------------------|
68|   size(B) |       time/packet (nsec)       |          KB/sec                |
69|-----------------------------------------------------------------------------|
70| put | get |  no buf  | small buf| big buf  |  no buf  | small buf| big buf  |
71|-----------------------------------------------------------------------------|
72|    N|    N|   NNNNNNN|   NNNNNNN|   NNNNNNN|         N|         N|         N|
73|   NN|   NN|   NNNNNNN|   NNNNNNN|   NNNNNNN|        NN|        NN|        NN|
74|   NN|   NN|   NNNNNNN|   NNNNNNN|   NNNNNNN|        NN|        NN|        NN|
75|   NN|   NN|   NNNNNNN|   NNNNNNN|   NNNNNNN|        NN|        NN|        NN|
76|  NNN|  NNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|        NN|        NN|        NN|
77|  NNN|  NNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|       NNN|       NNN|       NNN|
78|  NNN|  NNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|       NNN|       NNN|       NNN|
79| NNNN| NNNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|       NNN|       NNN|       NNN|
80| NNNN| NNNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|       NNN|       NNN|       NNN|
81| NNNN| NNNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|      NNNN|      NNNN|      NNNN|
82|-----------------------------------------------------------------------------|
83|                      non-matching sizes (1_TO_N) to higher priority         |
84|-----------------------------------------------------------------------------|
85|   size(B) |       time/packet (nsec)       |          KB/sec                |
86|-----------------------------------------------------------------------------|
87| put | get |  no buf  | small buf| big buf  |  no buf  | small buf| big buf  |
88|-----------------------------------------------------------------------------|
89|    N| NNNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|         N|         N|         N|
90|   NN| NNNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|        NN|        NN|        NN|
91|   NN| NNNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|        NN|        NN|        NN|
92|   NN|  NNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|        NN|        NN|        NN|
93|  NNN|  NNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|        NN|        NN|        NN|
94|  NNN|  NNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|        NN|        NN|        NN|
95|  NNN|   NN|  NNNNNNNN|   NNNNNNN|   NNNNNNN|        NN|        NN|        NN|
96| NNNN|   NN|  NNNNNNNN|  NNNNNNNN|  NNNNNNNN|        NN|        NN|        NN|
97| NNNN|   NN| NNNNNNNNN| NNNNNNNNN| NNNNNNNNN|        NN|        NN|        NN|
98| NNNN|    N| NNNNNNNNN| NNNNNNNNN| NNNNNNNNN|         N|         N|         N|
99|-----------------------------------------------------------------------------|
100|                      non-matching sizes (1_TO_N) to lower priority          |
101|-----------------------------------------------------------------------------|
102|   size(B) |       time/packet (nsec)       |          KB/sec                |
103|-----------------------------------------------------------------------------|
104| put | get |  no buf  | small buf| big buf  |  no buf  | small buf| big buf  |
105|-----------------------------------------------------------------------------|
106|    N| NNNN|   NNNNNNN|    NNNNNN|    NNNNNN|         N|         N|         N|
107|   NN| NNNN|   NNNNNNN|   NNNNNNN|    NNNNNN|        NN|        NN|        NN|
108|   NN| NNNN|   NNNNNNN|   NNNNNNN|    NNNNNN|        NN|        NN|        NN|
109|   NN|  NNN|   NNNNNNN|   NNNNNNN|    NNNNNN|        NN|        NN|        NN|
110|  NNN|  NNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|        NN|        NN|       NNN|
111|  NNN|  NNN|   NNNNNNN|   NNNNNNN|   NNNNNNN|        NN|        NN|       NNN|
112|  NNN|   NN|  NNNNNNNN|  NNNNNNNN|   NNNNNNN|        NN|        NN|       NNN|
113| NNNN|   NN|  NNNNNNNN|  NNNNNNNN|   NNNNNNN|        NN|        NN|       NNN|
114| NNNN|   NN| NNNNNNNNN| NNNNNNNNN|   NNNNNNN|        NN|         N|       NNN|
115| NNNN|    N| NNNNNNNNN|NNNNNNNNNN|   NNNNNNN|         N|         N|      NNNN|
116|-----------------------------------------------------------------------------|
117|         END OF TESTS                                                        |
118|-----------------------------------------------------------------------------|
119PROJECT EXECUTION SUCCESSFUL
120