README.txt
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
