c2aecb26cc
The test is modified to key on CONFIG_TASK_MONITOR instead of CONFIG_MICROKERNEL, since that is what it was really interested in. Also, this allows the unified kernel to work w.r.t. task monitoring, since that is a concept that is alien to the unified kernel, since there are no more task transitions recorded as part of a kernel server. The unified kernel does not have a CONFIG_TASK_MONITORING option. To make this work, since the kernel_event_logger sample makes use of the philosophers demo, the latter had to be modified as well. The nanokernel philosophers demo would not work with the unifed kernel since it identifies as a microkernel, and in that case the test would be looking for symbols defined in an MDEF file, which the nanokernel demo does not provide of course; the same thing applies to the nanokernel kernel_event_logger sample. Instead, the demo defines NANO_APIS_ONLY=1, which is really what it is interested in. To allow that definition to exist, the nanokernel philosophers demo and both the nano/micro kernel_event_logger samples add src/ directory with its own Makefile and add their own phil_fiber.c and phil.h files, which simply include the original files from the microkernel philosophers demo. As a final change, the kernel_event_logger samples need a different prj.conf file for the unified kernel, since it needs a bigger idle stack than the default, since the kernel event logger does work in the idle thread when the kernel goes to sleep. Change-Id: I4cac45a32d09d6ca1de052a368b3219f64889869 Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com> |
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|---|---|---|
| .. | ||
| src | ||
| Makefile | ||
| prj_micro.conf | ||
| prj_unified.conf | ||
| prj.mdef | ||
| README.txt | ||
| sample.tc | ||
| testcase.ini | ||
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