Only log at debug level when a kernel config option is missing while
generating the default JSON content.

Update subtrees

remote: https://github.com/ARM-Software/devlib.git

80c0e37d1 utils/misc: Use an RLock in tls_property
f523afda9 target: Fix deadlock in Target.clear_logcat()
b64ec714a utils/misc: Use RLock for check_output_lock

git-subtree-dir: external/devlib
git-subtree-split: 80c0e37d1129756063ec5883a7e27cd47f9dd8ea

Fix exception on Python 3.6

If we set it there, it will interfere with the default tool set set in
lisa.analysis.base.

Use only one legend entry for plot_signal() figures

Add various plot examples to demonstrate what can be done.

Ensure the panel's width stretches to the plots width.

Update subtrees to fetch PCMark 3 support from workload-automation

remote: https://github.com/ARM-Software/workload-automation.git

06b50810 workloads/pcmark: Add PCMark 3.0 support

git-subtree-dir: external/workload-automation
git-subtree-split: 06b508107b8d11528fea21b47945adf1bbbf12c7

6249c06b modules/sched: Add awareness of new debug directory root
3af3463c utils/ssh: Fix paramiko streams
7065847f utils/ssh: Fix paramiko stdin

git-subtree-dir: external/devlib
git-subtree-split: 6249c06b446d77962bcdb8132f1b306f4ec2d637

remote: https://github.com/ARM-Software/devlib.git

When two columns are redundant and only one of them is part of the
ref_group, this will lead to a situation where sub groups cannot be
compared their reference, since no subgroup of the refgroup matches.

Fix that by automatically extending ref_group with the value of the
redundant column.

Ensure it is always called with either a TraceEventCheckerBase or an
iterable of strings, that are then combined with AndTraceEventChecker.

Mimic what is done in holoviews codebase for the default color cycle.

Ensure path trimming will always work no matter how many folders are
given.

Vincent Donnefort authored Jul 14, 2021 and Douglas Raillard committed Jul 14, 2021

When filling wa_path, WAOutput is looking for the longest common path,
shared by all the WA folder path. e.g

  foo/bar foo/bar2 would become respectively bar and bar2.

A problem occurs when using a path with WAOutput that is the root of a
WA folder. (e.g. foobar where foobar/__meta exists). This common path
(common_prefix) would then be PosixPath('.'). Pathlib cannot use a such
path with relative_to() and raises the following error:

   ValueError: '/foo/bar/' does not start with ''

Fixing this problem by converting common_prefix to an absolute path.

typical_experiment.ipynb:
    * Use holoviews plots
    * s/xbins/bins
    * s/trace.analysis/trace.ana/
    * Add a paragraph on using the new analysis proxy object (trace.ana)

kernel_functions_profiling.ipynb:
    * fix examples
    * Use holoviews plots

Remove uses of the deprecated trace.analysis proxy.

 sed -i 's/trace\.analysis/trace.ana/g' lisa/**.py ipynb/**.ipynb
 # Avoid "converting" the deprecation warning
 git checkout lisa/analysis/proxy.py

Update to use holoviews, using the bokeh backend.

BREAKING CHANGE

--xkcd option is removed as it is not supported by bokeh.
--matplotlib-backend option is removed as it becomes irrelevant.

Use holoviews API for debug plots

Add a deprecated "nbins" parameter for backward compatibility.

BREAKING CHANGE

Plot methods of lisa.stats.Stats used to return matplotlib Axes objects,
they now return holoviews elements.

Deprecate trace.ana.notebook.plot_XXX() in favor of
trace.ana.notebook.custom.plot_XXX() in order to free the namespace for
plot methods provided by LISA.

Use pandas custom attrs system to provide a name.

Order columns for a better kernelshark-like display.

Add deprecated xbins parameter for backward compatibility.

Make colors, linestyles and markers plot method parameters a no-op, as
they cannot currently be correctly implemented in holoviews. There is no
way to safely change the global defaults and restore them afterwards,
and there is no way to distinguish between options set by the plot
methods from the ones coming from the global defaults.

Move to NotebookAnalysis so it can benefit from the dataframe cache, as
it is a non-essential method of Trace class.

A deprecated shim is left in place.

Remove as it is untestable without traces that have the right events.
Since it's a complex function, it would be impossible to port it to
holoviews without testing.

Please open an issue at https://github.com/ARM-software/lisa/issues if
you need it back, along with a trace.dat allowing the port to be done.

Similar to lisa.analysis except:
* shorter to type
* Plot methods will defaults to returning holoviews objects, unlike
  lisa.analysis.XXX.plot_foo() that will return matplotlib axes if
  matplotlib backend is chosen (for backward compatibility)
* Allow setting default values for any analysis method:

    trace.ana(foo=42).XXX.df_YYY()
    # Is equivalent to:
    trace.ana.XXX.df_YYY(foo=42)

    # Parameters can be accumulated as well:
    trace.ana(foo=42)(bar=43).XXX.df_YYY()
    # Is equivalent to:
    trace.ana(foo=42, bar=43).XXX.df_YYY()

    # The method call can override any of these parameters:
    trace.ana(foo=42, bar=43).XXX.df_YYY(foo=53)

Note: If the method does not uses that parameter, it will simply be
ignore.