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gh-135953: Add flamegraph reporter to sampling profiler #138304

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lkollar wants to merge 19 commits into python:main from lkollar:profiling/flamegraph
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f82c991
Remove unused variables in sample profiler
lkollar Aug 27, 2025
e7ff0d1
Add HTML flamegraph to sampling profiler
lkollar Aug 27, 2025
a9b1213
Avoid displaying popup outside viewport
lkollar Aug 31, 2025
e1c56ee
fixup! Add HTML flamegraph to sampling profiler
lkollar Aug 31, 2025
3a64277
Vendor D3 files and Python logo
lkollar Sep 7, 2025
e5139c7
Update Makefile.pre.in
lkollar Sep 7, 2025
37134d8
Move licenses into license.rst
lkollar Sep 7, 2025
09d04fa
Update license.rst
lkollar Sep 7, 2025
3799731
Update license.rst
lkollar Sep 7, 2025
4f10915
fixup! Update license.rst
pablogsal Sep 8, 2025
fb48a88
fixup! fixup! Update license.rst
pablogsal Sep 8, 2025
8882b27
fixup! fixup! fixup! Update license.rst
pablogsal Sep 8, 2025
738bd0a
Update Lib/test/test_profiling/test_sampling_profiler.py
lkollar Sep 9, 2025
4e63501
Shorten lines in flamegraph.js
lkollar Sep 9, 2025
eef995d
Watch for readystate before initialising flamegraph UI
lkollar Sep 9, 2025
97474d6
Add .min.js to .gitattributes
lkollar Sep 9, 2025
8291df0
Break up large functions in flamegraph.js
lkollar Sep 9, 2025
a780144
Use importlib.resources to locate flamegraph assets
lkollar Sep 9, 2025
9d3956d
fixup! Update Lib/test/test_profiling/test_sampling_profiler.py
lkollar Sep 9, 2025
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1 change: 1 addition & 0 deletions .gitattributes
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Original file line number Diff line number Diff line change
Expand Up @@ -103,3 +103,4 @@ Python/stdlib_module_names.h generated
Tools/peg_generator/pegen/grammar_parser.py generated
aclocal.m4 generated
configure generated
*.min.js generated
30 changes: 30 additions & 0 deletions Doc/license.rst
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Expand Up @@ -1169,3 +1169,33 @@ contributors. The pyzstd code is distributed under the 3-Clause BSD License::
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


Profiling module
----------------

The :mod:`!profiling` module includes vendored third-party libraries in
:file:`Lib/profiling/sampling/_vendor/` with the following licenses:

**d3-flamegraph**

The d3-flamegraph library is distributed under the Apache License, Version 2.0.
See the OpenSSL section above for the full text of the Apache License Version 2.0.

**d3.js**

The d3.js library contains the following notice::

Copyright 2010-2021 Mike Bostock

Permission to use, copy, modify, and/or distribute this software for any purpose
with or without fee is hereby granted, provided that the above copyright notice
and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
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@@ -0,0 +1,46 @@
.d3-flame-graph rect {
stroke: #EEEEEE;
fill-opacity: .8;
}

.d3-flame-graph rect:hover {
stroke: #474747;
stroke-width: 0.5;
cursor: pointer;
}

.d3-flame-graph-label {
pointer-events: none;
white-space: nowrap;
text-overflow: ellipsis;
overflow: hidden;
font-size: 12px;
font-family: Verdana;
margin-left: 4px;
margin-right: 4px;
line-height: 1.5;
padding: 0 0 0;
font-weight: 400;
color: black;
text-align: left;
}

.d3-flame-graph .fade {
opacity: 0.6 !important;
}

.d3-flame-graph .title {
font-size: 20px;
font-family: Verdana;
}

.d3-flame-graph-tip {
background-color: black;
border: none;
border-radius: 3px;
padding: 5px 10px 5px 10px;
min-width: 250px;
text-align: left;
color: white;
z-index: 10;
}
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2 changes: 2 additions & 0 deletions Lib/profiling/sampling/_vendor/d3/7.8.5/d3.min.js
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