zephyr

History

Yonattan Louise dbada63eee Fix coding style issues. Some checkpatch issues were solved by scripts leaving other problems such as alignment and indentation issues. In order to comply with the defined coding style the following fixes were made: - Fixed the function declaration moving the parameters' comments above the function in accordance to the doxygen format. - Fixed functions' opening and closing brackets. These brackets should not be indented. - Fixed the 'if', 'for' and 'while' statements adding the brackets around the sentence. - Fixed comments' alignment. - Fixed indentation. The work was done manually and submitted as one commit. I didn't separate these changes in different commits because they were fixed all at once. Basically, all errors were fixed in every file at once. Change-Id: Icc94a10bfd2cff82007ce60df23b2ccd4c30268d Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>		2016-02-05 20:13:59 -05:00
..
src	Fix coding style issues.	2016-02-05 20:13:59 -05:00
Makefile	Fix benchmark projects makefiles to use proper configuration for i8253	2016-02-05 20:13:40 -05:00
prj_generic.conf	First commit	2015-04-10 16:44:37 -07:00
prj_pc8253.conf	First commit	2015-04-10 16:44:37 -07:00
prj.vpf	First commit	2015-04-10 16:44:37 -07:00
README.txt	Remove references to Simics from README.txt files	2016-02-05 20:13:48 -05:00

README.txt

Title: latency measure

Description:

This benchmark measures the latency of selected capabilities of both the VxMicro
nanokernel and microkernel.

IMPORTANT: The sample output below was generated using a simulation
environment, and may not reflect the results that will be generated using other
environments (simulated or otherwise).

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

Building and Running Project:

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

    make pristine
    make NODE1.qemu

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

Sample Output:

|-----------------------------------------------------------------------------|
|                    VxMicro Nanokernel Latency Benchmark                     |
|-----------------------------------------------------------------------------|
|  tcs = timer clock cycles: 1 tcs is N nsec                                  |
|-----------------------------------------------------------------------------|
| 1- Measure time to switch from fiber to ISR execution                       |
| switching time is NNNN tcs = NNNNN nsec                                     |
|-----------------------------------------------------------------------------|
| 2- Measure time to switch from ISR back to interrupted fiber                |
| switching time is NNNN tcs = NNNNN nsec                                     |
|-----------------------------------------------------------------------------|
| 3- Measure time from ISR to executing a different fiber (rescheduled)       |
| switching time is NNNN tcs = NNNNN nsec                                     |
|-----------------------------------------------------------------------------|
| 4- Measure average context switch time between fibers                       |
| Average context switch time is NNNN tcs = NNNNN nsec                        |
|-----------------------------------------------------------------------------|
| 5- Measure average time to lock then unlock interrupts                      |
| 5.1- When each lock and unlock is executed as a function call               |
| Average time for lock then unlock is NNNN tcs = NNNN nsec                   |
|                                                                             |
| 5.2- When each lock and unlock is executed as inline function call          |
| Average time for lock then unlock is NNN tcs = NNNN nsec                    |
|-----------------------------------------------------------------------------|
|-----------------------------------------------------------------------------|
|                    VxMicro Microkernel Latency Benchmark                    |
|-----------------------------------------------------------------------------|
|  tcs = timer clock cycles: 1 tcs is N nsec                                  |
|-----------------------------------------------------------------------------|
| 1- Measure time to switch from ISR to back to interrupted task              |
| switching time is NNNN tcs = NNNNN nsec                                     |
|-----------------------------------------------------------------------------|
| 2- Measure time from ISR to executing a different task (rescheduled)        |
| switch time is NNNNN tcs = NNNNNN nsec                                      |
|-----------------------------------------------------------------------------|
| 3- Measure average time to signal a sema then test that sema                |
| Average semaphore signal time NNNNN tcs = NNNNNN nsec                       |
| Average semaphore test time NNNNN tcs = NNNNNN nsec                         |
|-----------------------------------------------------------------------------|
| 4- Measure average time to lock a mutex then unlock that mutex              |
| Average time to lock the mutex NNNNN tcs = NNNNNN nsec                      |
| Average time to unlock the mutex NNNNN tcs = NNNNNN nsec                    |
|-----------------------------------------------------------------------------|
| 5- Measure average context switch time between tasks using (task_yield)     |
| Average task context switch using yield NNNNN tcs = NNNNNN nsec             |
|-----------------------------------------------------------------------------|
|                                    E N D                                    |
|-----------------------------------------------------------------------------|
===================================================================
VXMICRO PROJECT EXECUTION SUCCESSFUL