zephyr

History

Anas Nashif 9c9fe856bd samples: disable kernel logger sample on Quark D2000 This sample depends on functions that are not available in the MVIC driver. Disabling while we wait for those to be implemented. Change-Id: Icd03ef014cbcd890945c0e77e349cccfded62e22 Signed-off-by: Anas Nashif <anas.nashif@intel.com>		2016-02-05 20:24:49 -05:00
..
Makefile	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	Fix kernel event logger sample for nanokernel-only systems.	2016-02-05 20:24:43 -05:00
prj.mdef	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
testcase.ini	samples: disable kernel logger sample on Quark D2000	2016-02-05 20:24:49 -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.

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

Sample Output:

Philosopher 0 THINKING
Philosopher 1 EATING
Philosopher 2 THINKING
Philosopher 3 THINKING
Philosopher 4 THINKING
Philosopher 5 EATING




Dropped events occurred: 0

Context switch summary
Context Id   Amount of context switches
 1068296     140
 1065224     10
 1057984     38
 1059008     44
 1060032     32
 1061056     35
 1062080     40
 1063104     32