linux-kernel - Re: [PATCH v4 3/7] Documentation: KUnit: Added KUnit Architecture

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Date:   Thu, 16 Dec 2021 14:16:21 +0100
From:   Marco Elver <elver@...gle.com>
To:     Harinder Singh <sharinder@...gle.com>
Cc:     davidgow@...gle.com, brendanhiggins@...gle.com, shuah@...nel.org,
        corbet@....net, linux-kselftest@...r.kernel.org,
        kunit-dev@...glegroups.com, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, Tim.Bird@...y.com
Subject: Re: [PATCH v4 3/7] Documentation: KUnit: Added KUnit Architecture

On Thu, Dec 16, 2021 at 11:15AM +0100, Marco Elver wrote:
> On Thu, 16 Dec 2021 at 07:00, Harinder Singh <sharinder@...gle.com> wrote:
> >
> > Describe the components of KUnit and how the kernel mode parts
> > interact with kunit_tool.
> >
> > Signed-off-by: Harinder Singh <sharinder@...gle.com>
> > ---
> >  .../dev-tools/kunit/architecture.rst          | 204 ++++++++++++++++++
> >  Documentation/dev-tools/kunit/index.rst       |   2 +
> >  .../kunit/kunit_suitememorydiagram.png        | Bin 0 -> 24174 bytes
> >  Documentation/dev-tools/kunit/start.rst       |   1 +
> >  4 files changed, 207 insertions(+)
> >  create mode 100644 Documentation/dev-tools/kunit/architecture.rst
> >  create mode 100644 Documentation/dev-tools/kunit/kunit_suitememorydiagram.png
> 
> In response to the other email: Adding binary blobs just creates
> problems, for comparing different versions, and general bloating the
> whole repo, where better alternatives exist.
> 
> I suppose an ASCII diagram is a bit primitive. :-)
> 
> However, SVG files on the other hand are not binary blobs, they are
> text-markup based (XML), and e.g. diffing them often provides useful
> information about what changed. SVG also has the benefit of being
> vector graphics, and not being limited to one resolution.
> 
> Looking at the diagram you added, I think this can easily be turned
> into vector graphics, and most likely will not use up 24KiB as a
> result.

I gave it a shot, see attached SVG file. I re-created the figure using
Inkscape.

The attached SVG file is an "Optimized SVG", where Inkscape stripped as
much useless info as possible and it should be as portable as possible.
Some care is required to make it render the same everywhere, which I did
by turning some objects into pure paths (like the arrows and '{', '}').
The text is still text, and should look similar enough with most
Monospace fonts. The advantage of it still being text is reduced size,
and also being able to edit it with a plain text editor should only
small details need updating (like variable naming). If shapes need
editing, it can be done with the help of Inkscape itself.

Also, kernel-doc has proper support for dealing with SVG:
https://www.kernel.org/doc/html/latest/doc-guide/sphinx.html#image-output

In case you want to use my SVG as-is, you need to add:
Signed-off-by: Marco Elver <elver@...gle.com>

Thanks,
-- Marco

Download attachment "kunit_suitememorydiagram.svg" of type "image/svg+xml" (7785 bytes)