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zephyr/samples/microkernel/apps/kernel_event_logger
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Peter Mitsis 54b782a88b nano_sema: Simplify nano_xxx_sem_take() API family 
Changes the nanokernel semaphore API so that the timeout parameter must be
specified when invoking nano_isr_sem_take(), nano_fiber_sem_take(),
nano_task_sem_take() and nano_sem_take().

This obsoletes the following APIs:
	nano_fiber_sem_take_wait()
	nano_fiber_sem_take_wait_timeout()
	nano_task_sem_take_wait()
	nano_task_sem_take_wait_timeout()
	nano_sem_take_wait()
	nano_sem_take_wait_timeout()

Change-Id: If7a4bce1bd8ec8d6410d04f3c16ff1922ff0910e
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
 		2016-02-05 20:25:14 -05:00
..
src nano_sema: Simplify nano_xxx_sem_take() API family 2016-02-05 20:25:14 -05:00
Makefile Use BOARD instead of PLATFORM_CONFIG 2016-02-05 20:25:11 -05:00
README.txt samples: rename microkernel event logger sample 2016-02-05 20:24:54 -05:00
prj.mdef samples: rename microkernel event logger sample 2016-02-05 20:24:54 -05:00
prj_arm.conf samples: rename microkernel event logger sample 2016-02-05 20:24:54 -05:00
prj_x86.conf samples: rename microkernel event logger sample 2016-02-05 20:24:54 -05:00
testcase.ini samples: rename microkernel event logger sample 2016-02-05 20:24:54 -05:00

README.txt 

Title: Kernel Event Logger Sample

Description:

This sample uses the philosopher sample with two additional tasks to show the
profiling data on different system's states. The fork manager task controls the
fork's availibilty. The worker task performs intermitently heavy processing,
allowing or preventing the system to go idle.

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

Building and Running Project:

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

    make qemu

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

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


Problems with QEMU on ARM:
Qemu v2.1 for ARM platform do not support tickless idle. If run the sample
project in QEMU with the CONFIG_TICKLESS_IDLE option enabled, the project
could present an erratic behaviour.

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

Sample Output:

Philosopher 1 EATING
Philosopher 2 THINKING
Philosopher 3 THINKING
Philosopher 4 EATING
Philosopher 5 THINKING




Dropped events occurred: 0

Context switch summary
Context Id   Amount of context switches
 1067512     17339
 1068536     30067
 1075704     4
 1064184     350
 1074680     1986
 1073656     2018
 1072632     2623
 1071608     2630
 1070584     1983
 1069560     1340