zephyr

History

Yonattan Louise 16ddcfa43d Fix kernel event logger sample for nanokernel-only systems. This commit fixes the nanokernel sample of the kernel event logger that shows the event messages for context switch and interrupt events. Change-Id: I4e972adb06b81f2f548bbabe8cd6577af633001c Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>		2016-02-05 20:24:43 -05:00
..
src	Fix kernel event logger sample for nanokernel-only systems.	2016-02-05 20:24:43 -05:00
Makefile	Rename Profiler to Event Logger.	2016-02-05 20:24:41 -05:00
README.txt	Rename Profiler to Event Logger.	2016-02-05 20:24:41 -05:00
prj.mdef	Rename Profiler to Event Logger.	2016-02-05 20:24:41 -05:00
prj_arm.conf	Rename Profiler to Event Logger.	2016-02-05 20:24:41 -05:00
prj_x86.conf	Rename Profiler to Event Logger.	2016-02-05 20:24:41 -05:00
testcase.ini	Rename Profiler to Event Logger.	2016-02-05 20:24:41 -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.

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Building and Running Project:

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

    make qemu

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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.

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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