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- Overview embedded Hypervisor
- Concepts
- Configuration
- RT-Measurements
Signed-off-by: Andreas Messerschmid <andreas.messerschmid@linutronix.de>
(adapt to schulung repo)
Signed-off-by: Holger Dengler <dengler@linutronix.de>
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Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
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It's much simpler to have syscall names instead of numbers in traces.
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
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The "ln" tool is needed for the basic schulung. Add it to the
command reference handout.
Since adding something to the left column creates empty space in
the right column, use that to add a reference to ctrl+r (searching
the shell history). This is a feature that is always asked about
during the schulung.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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An older version of this file was in the devel/jogness branch. We
do not want trainers digging around in the devel/jogness branch.
And since this file is still considered useful, put the latest
version in the master branch.
NOTE: This needs to be converted to LaTeX at some point!
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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It is much easier to use tcf-agent with eclipse and cross-remote
debugging. Since local plugin-mirrors and yocto instructions are
now available, update the documents to reflect this.
Using the old method (with ssh) probably still works, but is
definitely more work to get setup on the target.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
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Sched deadline was introduced in 3.14 and extended in 4.13. Customers keep
asking about this, so we should at least mention it in our scheduling slides.
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
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top -d 0 is also an interesting test for finding bugs.
[jogness] Extended the description of the test.
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
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As discussed with John, this slide set basically only shows the RT tests. So
rename it.
Furthermore, the last two slides are not needed. Especially for scheduling, we
have different slides.
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
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Rather than manually determining and setting the uprobes, use perf
to do it. This allows for the README to become a generic script
that can run out-of-the-box to create the trace.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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pthread_mutexattr_setrobust() is now in the posix standard. Remove
the _np/_NP usage.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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The daemon slides are sitting in the middle of the scheduling
section. Very odd. Move them to after the Parent/Child slides.
There it makes more sense.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Priority 99 is really reserved for special kernel tasks (such as
migration and watchdog). Mention that it should never be used by
any thing the user does.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Signed-off-by: John Ogness <john.ogness@linutronix.de>
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User apps should _never_ use prio 99. So don't show a demo using it!
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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In the last 2 trainings I've had participants with batteries going
dead because there was no display for the battery status. The mate
power manager provides this feature. Add it to the image.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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During the audio schulung, we needed to manually install:
qjackctl
libjack-dev
Also, compiling the new kernels now requires:
libelf-dev
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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JUCE itself is not installed (it is broken in stretch). Instead,
all JUCE dependencies are installed and the upstream JUCE will
be used for the workshop.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Signed-off-by: John Ogness <john.ogness@linutronix.de>
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- Update Concepts (redundant, rescue)
- Update Processing (swupdate)
- Deployment (Hawkbit)
Signed-off-by: Holger Dengler <dengler@linutronix.de>
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With the sumo release, a lot of May commits were pushed. Regenerate
the stats to show this.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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The list of machine features was too long for the slide. Shorten
it and add dots to show that there are more.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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The paths for the toolchains were too long and inconsistent with
rocko. Change them to more generic examples (using dots).
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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The section title was german. Change it to english.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Update commands, examples, and output to match rocko.
NOTE: We will checkout a tag instead of a branch!
There are many many slides showing lots (all?) the various
tasks that exist. It is not productive to spend so much time
going through such details. The slides have been completely
commented out. It would probably be good to have a few slides
about this, but that will need to be determined by someone.
The text for many points has been cleaned up (capitalization,
grammar) and in many cases modified to improve clarity. The
general the content of the slides has been preserved.
New slides are added to show function overriding and function
extending.
The kernel/u-boot part of the machine.conf explanation has
been moved to the end of the machine.conf slides.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Capitalization for slides has been cleaned up.
There are many slides about inspection of things like the build
stats. Although interesting, it is not something we should spend
so many slides on. The slides have been commented out.
There are many slides talking about how cleaning can be different
depending on the recipe. We probably don't need slides for this
and can just mention it instead. The slides have been commented
out.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Perform minor cleanups to capitalization and examples.
John Ogness <john.ogness@linutronix.de>
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All slide sets show the date on the cover page. We should not
have individual slide sets that do their own thing. If dates are
not wanted, they should be generally removed (or perhaps a
configuration option when building).
John Ogness <john.ogness@linutronix.de>
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The eclipse information is no longer correct for oxygen. It is
almost correct and just needs updating. For that reason it has
been commented out (not deleted).
Capitalization and grammar has been cleaned up on several
places.
The toolchain slides have been moved together and the NFS export
slide moved after.
John Ogness <john.ogness@linutronix.de>
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Use a consistent and easy to read capitalization scheme.
This patch fixes some minor typos discovered during capitalization
changes.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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The various statistic tables were replaced by gnuplot graphs. These
graphs were generated using various scripts. These scripts need to
be added to this repository so that it is easy to update the graphs.
The yocto version table was replaced by a screenshot from
https://wiki.yoctoproject.org/wiki/Releases.png
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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With stretch, the new runstatedir variable is supported. Use the
configure script generated by stretch.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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For the yocto training, some important packages are missing.
Toaster requires pip for python3. The documentation requires
xsltproc and fop. Install them.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Use the image/device argument now passed to the script.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Rather than assuming the image file lx-trainer.img in the current
working directory, require an argument that specifies this. Also,
allow this argument to be a block device to perform the secure
boot preparation on devices already prepared with the image.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Start the untar processes in parallel. This will take advantage
of file caching and should max out the USB bandwidth.
This is important because some trainings (like Yocto) have huge
layers.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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/home shouldn't be empty, but check just in case. Getting an
error in the middle of the script is very annoying.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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It is very annoying if the script aborts in the middle because
of something like missing files. Check for them in the beginnning.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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... from neon-3 to oxygen-3a.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Eventually the lx-trainer image will come with secure boot
automatically. But for now, we have to manually adjust the image.
Here is a script to do that.
Also update the README.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Tarballs are copied to the USB drives and then unpacked in a
chroot. However, this means the data will travel across the bus
three times! For large layers this is craziness.
Since --numeric-owner is used anyway, just unpack the tarballs
directly.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Label the menu item "Evaluation sheet" and name the config item
CONFIG_EVALSHEET.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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A clean must be performed when the theme is switched and
incremental building does not work if printouts are enabled. Add
this information to the README.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Add a new CONFIG_BUILD_MICROCONSULT option to use the MicroConsult
theme. Printouts are also affected by this option.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Liberation Sans is a free metrically equivalent drop-in replacement
for the non-free Arial. Use it instead.
This also requires users to install the fonts-liberation2 package.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Signed-off-by: Holger Dengler <dengler@linutronix.de>
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The new "make check" caught some tabs in .tex files. Remove them.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Some targets were missed in b9c47deaa48("build: cleanup PHONY
targets"). Add them as well.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
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Tabs in tex-files are not correctly processed, so check for tabs in
all tex-files and print a warning about the affected files. Tabs in
tex-files will not terminate the build process.
Signed-off-by: Holger Dengler <dengler@linutronix.de>
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