feat(tracing): [1/n] support Python 3.15 coroutine and generator wrapping #17446 by vlad-scherbich · Pull Request #17531 · DataDog/dd-trace-py

vlad-scherbich · 2026-04-15T03:00:56Z

• https://datadoghq.atlassian.net/browse/PROF-14200

Description

This is [1/n] in the Python 3.15 support stack for dd-trace-py. It is a prerequisite for the profiling PR (2/n), since CPython 3.15 changed two bytecode operands used by ddtrace's async/generator wrapping machinery. It is causing ddtrace to raise NotImplementedError at import time.

This PR adds the 3.15 assembly branches to asyncs.py, generators.py, and context.py.

Changed bytecode operands:

YIELD_VALUE in SEND loops (await): 0 → 1
RESUME after async gen yield-to-caller: 1 → 5

Code Changes

asyncs.py: new 3.15 branch with updated operands; ASYNC_HEAD and COROUTINE_ASSEMBLY structure identical to 3.14, ASYNC_GEN_ASSEMBLY yield_value updated in all three await loops (presend0/1/2) and resume updated in the yield-to-caller section.
generators.py: new 3.15 branch identical to 3.14 — generator yields inside try blocks still use RESUME 1 in 3.15 (only unprotected yields changed to RESUME 5).
context.py: extended 3.13 branch to cover 3.15 — no bytecode changes needed for context enter/exit/return assembly.

Testing

Validated on Python 3.15.0a7:

$ pyenv shell 3.15.0a7
$ python3.15 -m pytest -v -o "addopts=" tests/internal/test_wrapping.py
...
======================================================= 34 passed, 41 warnings in 0.69s =======================================================

Risks

CPython may change bytecode operand values between now and the 3.15 final release, requiring an update to asyncs.py/generators.py. No risk to existing supported Python versions, as 3.15 logic is behind version guards.

Additional Notes

python/cpython #146182 may land before 3.15 beta and eliminate the need for bytecode manipulation. In that case, we'll follow up with another PR.

cit-pr-commenter-54b7da · 2026-04-15T21:31:50Z

Codeowners resolved as

docker/.python-version                                                  @DataDog/apm-core-python

pr-commenter · 2026-04-15T22:14:19Z

Performance SLOs

Comparing candidate vlad/ddtracepy-315-tracing-wrapping (fff2289) with baseline main (f062c81)

📈 Performance Regressions (2 suites)

📈 iastaspects - 118/118

✅ add_aspect

Time: ✅ 105.328µs (SLO: <130.000µs 📉 -19.0%) vs baseline: -2.5%

Memory: ✅ 43.865MB (SLO: <46.000MB -4.6%) vs baseline: +5.3%

✅ add_inplace_aspect

Time: ✅ 103.189µs (SLO: <130.000µs 📉 -20.6%) vs baseline: -3.0%

Memory: ✅ 43.837MB (SLO: <46.000MB -4.7%) vs baseline: +4.8%

✅ add_inplace_noaspect

Time: ✅ 28.151µs (SLO: <40.000µs 📉 -29.6%) vs baseline: -0.8%

Memory: ✅ 43.786MB (SLO: <46.000MB -4.8%) vs baseline: +4.9%

✅ add_noaspect

Time: ✅ 49.297µs (SLO: <70.000µs 📉 -29.6%) vs baseline: -2.1%

Memory: ✅ 43.950MB (SLO: <46.000MB -4.5%) vs baseline: +5.2%

✅ bytearray_aspect

Time: ✅ 272.631µs (SLO: <400.000µs 📉 -31.8%) vs baseline: +6.1%

Memory: ✅ 43.838MB (SLO: <46.000MB -4.7%) vs baseline: +5.4%

✅ bytearray_extend_aspect

Time: ✅ 656.071µs (SLO: <800.000µs 📉 -18.0%) vs baseline: -0.2%

Memory: ✅ 43.961MB (SLO: <46.000MB -4.4%) vs baseline: +5.5%

✅ bytearray_extend_noaspect

Time: ✅ 265.579µs (SLO: <400.000µs 📉 -33.6%) vs baseline: -2.5%

Memory: ✅ 43.927MB (SLO: <46.000MB -4.5%) vs baseline: +5.3%

✅ bytearray_noaspect

Time: ✅ 141.848µs (SLO: <300.000µs 📉 -52.7%) vs baseline: +0.2%

Memory: ✅ 43.910MB (SLO: <46.000MB -4.5%) vs baseline: +5.0%

✅ bytes_aspect

Time: ✅ 233.438µs (SLO: <300.000µs 📉 -22.2%) vs baseline: +3.7%

Memory: ✅ 43.882MB (SLO: <46.000MB -4.6%) vs baseline: +5.1%

✅ bytes_noaspect

Time: ✅ 136.891µs (SLO: <200.000µs 📉 -31.6%) vs baseline: -1.6%

Memory: ✅ 43.838MB (SLO: <46.000MB -4.7%) vs baseline: +5.1%

✅ bytesio_aspect

Time: ✅ 3.832ms (SLO: <5.000ms 📉 -23.4%) vs baseline: -1.3%

Memory: ✅ 43.824MB (SLO: <46.000MB -4.7%) vs baseline: +5.2%

✅ bytesio_noaspect

Time: ✅ 318.060µs (SLO: <420.000µs 📉 -24.3%) vs baseline: -0.8%

Memory: ✅ 43.818MB (SLO: <46.000MB -4.7%) vs baseline: +5.1%

✅ capitalize_aspect

Time: ✅ 89.853µs (SLO: <300.000µs 📉 -70.0%) vs baseline: +0.5%

Memory: ✅ 43.845MB (SLO: <46.000MB -4.7%) vs baseline: +5.1%

✅ capitalize_noaspect

Time: ✅ 263.378µs (SLO: <300.000µs 📉 -12.2%) vs baseline: +2.3%

Memory: ✅ 43.980MB (SLO: <46.000MB -4.4%) vs baseline: +5.4%

✅ casefold_aspect

Time: ✅ 89.500µs (SLO: <500.000µs 📉 -82.1%) vs baseline: -1.4%

Memory: ✅ 43.954MB (SLO: <46.000MB -4.4%) vs baseline: +5.4%

✅ casefold_noaspect

Time: ✅ 314.296µs (SLO: <500.000µs 📉 -37.1%) vs baseline: -4.2%

Memory: ✅ 43.831MB (SLO: <46.000MB -4.7%) vs baseline: +5.0%

✅ decode_aspect

Time: ✅ 87.037µs (SLO: <100.000µs 📉 -13.0%) vs baseline: -0.3%

Memory: ✅ 43.814MB (SLO: <46.000MB -4.8%) vs baseline: +4.9%

✅ decode_noaspect

Time: ✅ 155.697µs (SLO: <210.000µs 📉 -25.9%) vs baseline: -1.0%

Memory: ✅ 43.812MB (SLO: <46.000MB -4.8%) vs baseline: +5.1%

✅ encode_aspect

Time: ✅ 84.755µs (SLO: <200.000µs 📉 -57.6%) vs baseline: +0.5%

Memory: ✅ 43.889MB (SLO: <46.000MB -4.6%) vs baseline: +5.4%

✅ encode_noaspect

Time: ✅ 145.199µs (SLO: <200.000µs 📉 -27.4%) vs baseline: +0.6%

Memory: ✅ 43.880MB (SLO: <46.000MB -4.6%) vs baseline: +4.9%

✅ format_aspect

Time: ✅ 14.618ms (SLO: <19.200ms 📉 -23.9%) vs baseline: ~same

Memory: ✅ 44.004MB (SLO: <46.000MB -4.3%) vs baseline: +4.6%

✅ format_map_aspect

Time: ✅ 16.321ms (SLO: <21.500ms 📉 -24.1%) vs baseline: -0.3%

Memory: ✅ 43.887MB (SLO: <46.000MB -4.6%) vs baseline: +4.7%

✅ format_map_noaspect

Time: ✅ 373.594µs (SLO: <500.000µs 📉 -25.3%) vs baseline: -0.4%

Memory: ✅ 43.948MB (SLO: <46.000MB -4.5%) vs baseline: +5.4%

✅ format_noaspect

Time: ✅ 315.521µs (SLO: <500.000µs 📉 -36.9%) vs baseline: -1.9%

Memory: ✅ 43.867MB (SLO: <46.000MB -4.6%) vs baseline: +4.9%

✅ index_aspect

Time: ✅ 146.817µs (SLO: <300.000µs 📉 -51.1%) vs baseline: 📈 +14.7%

Memory: ✅ 43.857MB (SLO: <46.000MB -4.7%) vs baseline: +5.1%

✅ index_noaspect

Time: ✅ 40.366µs (SLO: <300.000µs 📉 -86.5%) vs baseline: -1.5%

Memory: ✅ 43.856MB (SLO: <46.000MB -4.7%) vs baseline: +5.5%

✅ join_aspect

Time: ✅ 218.960µs (SLO: <300.000µs 📉 -27.0%) vs baseline: +0.9%

Memory: ✅ 43.846MB (SLO: <46.000MB -4.7%) vs baseline: +5.0%

✅ join_noaspect

Time: ✅ 145.853µs (SLO: <300.000µs 📉 -51.4%) vs baseline: +1.3%

Memory: ✅ 43.808MB (SLO: <46.000MB -4.8%) vs baseline: +4.8%

✅ ljust_aspect

Time: ✅ 518.270µs (SLO: <700.000µs 📉 -26.0%) vs baseline: -0.8%

Memory: ✅ 43.847MB (SLO: <46.000MB -4.7%) vs baseline: +4.8%

✅ ljust_noaspect

Time: ✅ 274.925µs (SLO: <300.000µs -8.4%) vs baseline: +1.4%

Memory: ✅ 43.786MB (SLO: <46.000MB -4.8%) vs baseline: +4.8%

✅ lower_aspect

Time: ✅ 307.202µs (SLO: <500.000µs 📉 -38.6%) vs baseline: -0.5%

Memory: ✅ 43.933MB (SLO: <46.000MB -4.5%) vs baseline: +5.3%

✅ lower_noaspect

Time: ✅ 239.086µs (SLO: <300.000µs 📉 -20.3%) vs baseline: -1.0%

Memory: ✅ 43.805MB (SLO: <46.000MB -4.8%) vs baseline: +5.0%

✅ lstrip_aspect

Time: ✅ 0.274ms (SLO: <3.000ms 📉 -90.9%) vs baseline: -1.9%

Memory: ✅ 43.879MB (SLO: <46.000MB -4.6%) vs baseline: +5.2%

✅ lstrip_noaspect

Time: ✅ 0.178ms (SLO: <3.000ms 📉 -94.1%) vs baseline: -1.1%

Memory: ✅ 43.879MB (SLO: <46.000MB -4.6%) vs baseline: +4.9%

✅ modulo_aspect

Time: ✅ 14.239ms (SLO: <18.750ms 📉 -24.1%) vs baseline: +0.1%

Memory: ✅ 43.962MB (SLO: <46.000MB -4.4%) vs baseline: +4.9%

✅ modulo_aspect_for_bytearray_bytearray

Time: ✅ 14.782ms (SLO: <19.350ms 📉 -23.6%) vs baseline: ~same

Memory: ✅ 43.825MB (SLO: <46.000MB -4.7%) vs baseline: +4.6%

✅ modulo_aspect_for_bytes

Time: ✅ 14.362ms (SLO: <18.900ms 📉 -24.0%) vs baseline: +0.2%

Memory: ✅ 44.004MB (SLO: <46.000MB -4.3%) vs baseline: +4.7%

✅ modulo_aspect_for_bytes_bytearray

Time: ✅ 14.579ms (SLO: <19.150ms 📉 -23.9%) vs baseline: +0.2%

Memory: ✅ 43.937MB (SLO: <46.000MB -4.5%) vs baseline: +4.8%

✅ modulo_noaspect

Time: ✅ 0.373ms (SLO: <3.000ms 📉 -87.6%) vs baseline: -1.3%

Memory: ✅ 43.852MB (SLO: <46.000MB -4.7%) vs baseline: +5.0%

✅ replace_aspect

Time: ✅ 18.353ms (SLO: <24.000ms 📉 -23.5%) vs baseline: -0.5%

Memory: ✅ 43.972MB (SLO: <46.000MB -4.4%) vs baseline: +4.9%

✅ replace_noaspect

Time: ✅ 286.309µs (SLO: <400.000µs 📉 -28.4%) vs baseline: -3.1%

Memory: ✅ 43.839MB (SLO: <46.000MB -4.7%) vs baseline: +5.2%

✅ repr_aspect

Time: ✅ 340.345µs (SLO: <420.000µs 📉 -19.0%) vs baseline: +3.3%

Memory: ✅ 43.944MB (SLO: <46.000MB -4.5%) vs baseline: +5.4%

✅ repr_noaspect

Time: ✅ 47.531µs (SLO: <90.000µs 📉 -47.2%) vs baseline: +0.2%

Memory: ✅ 43.951MB (SLO: <46.000MB -4.5%) vs baseline: +5.4%

✅ rstrip_aspect

Time: ✅ 390.343µs (SLO: <500.000µs 📉 -21.9%) vs baseline: +0.4%

Memory: ✅ 43.868MB (SLO: <46.000MB -4.6%) vs baseline: +5.0%

✅ rstrip_noaspect

Time: ✅ 182.078µs (SLO: <300.000µs 📉 -39.3%) vs baseline: -5.5%

Memory: ✅ 43.941MB (SLO: <46.000MB -4.5%) vs baseline: +5.3%

✅ slice_aspect

Time: ✅ 183.751µs (SLO: <300.000µs 📉 -38.7%) vs baseline: ~same

Memory: ✅ 43.932MB (SLO: <46.000MB -4.5%) vs baseline: +5.2%

✅ slice_noaspect

Time: ✅ 53.956µs (SLO: <90.000µs 📉 -40.0%) vs baseline: -2.0%

Memory: ✅ 43.889MB (SLO: <46.000MB -4.6%) vs baseline: +5.2%

✅ stringio_aspect

Time: ✅ 4.506ms (SLO: <5.000ms -9.9%) vs baseline: 📈 +14.7%

Memory: ✅ 43.832MB (SLO: <46.000MB -4.7%) vs baseline: +5.3%

✅ stringio_noaspect

Time: ✅ 352.528µs (SLO: <500.000µs 📉 -29.5%) vs baseline: -0.5%

Memory: ✅ 43.993MB (SLO: <46.000MB -4.4%) vs baseline: +5.3%

✅ strip_aspect

Time: ✅ 273.345µs (SLO: <350.000µs 📉 -21.9%) vs baseline: -2.4%

Memory: ✅ 43.792MB (SLO: <46.000MB -4.8%) vs baseline: +4.9%

✅ strip_noaspect

Time: ✅ 175.800µs (SLO: <240.000µs 📉 -26.8%) vs baseline: -3.0%

Memory: ✅ 43.877MB (SLO: <46.000MB -4.6%) vs baseline: +5.4%

✅ swapcase_aspect

Time: ✅ 347.621µs (SLO: <500.000µs 📉 -30.5%) vs baseline: +2.5%

Memory: ✅ 43.807MB (SLO: <46.000MB -4.8%) vs baseline: +5.1%

✅ swapcase_noaspect

Time: ✅ 274.105µs (SLO: <400.000µs 📉 -31.5%) vs baseline: -1.0%

Memory: ✅ 43.878MB (SLO: <46.000MB -4.6%) vs baseline: +5.4%

✅ title_aspect

Time: ✅ 333.555µs (SLO: <500.000µs 📉 -33.3%) vs baseline: -0.1%

Memory: ✅ 43.841MB (SLO: <46.000MB -4.7%) vs baseline: +4.9%

✅ title_noaspect

Time: ✅ 265.490µs (SLO: <400.000µs 📉 -33.6%) vs baseline: +1.8%

Memory: ✅ 43.720MB (SLO: <46.000MB -5.0%) vs baseline: +4.8%

✅ translate_aspect

Time: ✅ 511.575µs (SLO: <700.000µs 📉 -26.9%) vs baseline: +0.4%

Memory: ✅ 43.841MB (SLO: <46.000MB -4.7%) vs baseline: +5.1%

✅ translate_noaspect

Time: ✅ 431.852µs (SLO: <500.000µs 📉 -13.6%) vs baseline: -2.5%

Memory: ✅ 43.880MB (SLO: <46.000MB -4.6%) vs baseline: +5.2%

✅ upper_aspect

Time: ✅ 312.271µs (SLO: <500.000µs 📉 -37.5%) vs baseline: +2.4%

Memory: ✅ 43.824MB (SLO: <46.000MB -4.7%) vs baseline: +5.1%

✅ upper_noaspect

Time: ✅ 238.717µs (SLO: <400.000µs 📉 -40.3%) vs baseline: -1.0%

Memory: ✅ 43.806MB (SLO: <46.000MB -4.8%) vs baseline: +5.1%

📈 iastaspectsospath - 24/24

✅ ospathbasename_aspect

Time: ✅ 544.960µs (SLO: <700.000µs 📉 -22.1%) vs baseline: 📈 +25.7%

Memory: ✅ 43.819MB (SLO: <46.000MB -4.7%) vs baseline: +5.4%

✅ ospathbasename_noaspect

Time: ✅ 438.802µs (SLO: <700.000µs 📉 -37.3%) vs baseline: +0.5%

Memory: ✅ 43.866MB (SLO: <46.000MB -4.6%) vs baseline: +5.2%

✅ ospathjoin_aspect

Time: ✅ 641.709µs (SLO: <700.000µs -8.3%) vs baseline: +0.6%

Memory: ✅ 43.984MB (SLO: <46.000MB -4.4%) vs baseline: +6.1%

✅ ospathjoin_noaspect

Time: ✅ 649.764µs (SLO: <700.000µs -7.2%) vs baseline: +1.9%

Memory: ✅ 43.939MB (SLO: <46.000MB -4.5%) vs baseline: +5.2%

✅ ospathnormcase_aspect

Time: ✅ 358.796µs (SLO: <700.000µs 📉 -48.7%) vs baseline: +2.1%

Memory: ✅ 43.940MB (SLO: <46.000MB -4.5%) vs baseline: +5.5%

✅ ospathnormcase_noaspect

Time: ✅ 366.829µs (SLO: <700.000µs 📉 -47.6%) vs baseline: ~same

Memory: ✅ 43.974MB (SLO: <46.000MB -4.4%) vs baseline: +5.7%

✅ ospathsplit_aspect

Time: ✅ 498.734µs (SLO: <700.000µs 📉 -28.8%) vs baseline: -0.3%

Memory: ✅ 43.826MB (SLO: <46.000MB -4.7%) vs baseline: +5.3%

✅ ospathsplit_noaspect

Time: ✅ 513.556µs (SLO: <700.000µs 📉 -26.6%) vs baseline: +2.0%

Memory: ✅ 43.847MB (SLO: <46.000MB -4.7%) vs baseline: +5.3%

✅ ospathsplitdrive_aspect

Time: ✅ 378.875µs (SLO: <700.000µs 📉 -45.9%) vs baseline: +0.2%

Memory: ✅ 43.861MB (SLO: <46.000MB -4.7%) vs baseline: +5.9%

✅ ospathsplitdrive_noaspect

Time: ✅ 71.879µs (SLO: <700.000µs 📉 -89.7%) vs baseline: -1.4%

Memory: ✅ 43.847MB (SLO: <46.000MB -4.7%) vs baseline: +5.0%

✅ ospathsplitext_aspect

Time: ✅ 467.649µs (SLO: <700.000µs 📉 -33.2%) vs baseline: -0.3%

Memory: ✅ 43.840MB (SLO: <46.000MB -4.7%) vs baseline: +5.2%

✅ ospathsplitext_noaspect

Time: ✅ 473.769µs (SLO: <700.000µs 📉 -32.3%) vs baseline: -0.8%

Memory: ✅ 43.857MB (SLO: <46.000MB -4.7%) vs baseline: +5.3%

🟡 Near SLO Breach (5 suites)

🟡 djangosimple - 28/28

✅ appsec

Time: ✅ 19.652ms (SLO: <22.300ms 📉 -11.9%) vs baseline: ~same

Memory: ✅ 71.467MB (SLO: <73.500MB -2.8%) vs baseline: +4.9%

✅ exception-replay-enabled

Time: ✅ 1.365ms (SLO: <1.450ms -5.9%) vs baseline: +0.1%

Memory: ✅ 69.599MB (SLO: <71.500MB -2.7%) vs baseline: +4.9%

✅ iast

Time: ✅ 19.662ms (SLO: <22.250ms 📉 -11.6%) vs baseline: -0.1%

Memory: ✅ 71.447MB (SLO: <75.000MB -4.7%) vs baseline: +4.9%

✅ profiler

Time: ✅ 15.167ms (SLO: <16.550ms -8.4%) vs baseline: -0.4%

Memory: ✅ 60.282MB (SLO: <61.000MB 🟡 -1.2%) vs baseline: +4.8%

✅ resource-renaming

Time: ✅ 19.563ms (SLO: <21.750ms 📉 -10.1%) vs baseline: +0.4%

Memory: ✅ 71.565MB (SLO: <73.500MB -2.6%) vs baseline: +5.1%

✅ span-code-origin

Time: ✅ 20.165ms (SLO: <28.200ms 📉 -28.5%) vs baseline: +1.4%

Memory: ✅ 71.782MB (SLO: <75.000MB -4.3%) vs baseline: +5.3%

✅ tracer

Time: ✅ 19.712ms (SLO: <21.750ms -9.4%) vs baseline: +0.2%

Memory: ✅ 71.487MB (SLO: <75.000MB -4.7%) vs baseline: +4.9%

✅ tracer-and-profiler

Time: ✅ 20.992ms (SLO: <23.500ms 📉 -10.7%) vs baseline: ~same

Memory: ✅ 73.453MB (SLO: <75.000MB -2.1%) vs baseline: +5.2%

✅ tracer-dont-create-db-spans

Time: ✅ 19.753ms (SLO: <21.500ms -8.1%) vs baseline: +0.2%

Memory: ✅ 71.447MB (SLO: <75.000MB -4.7%) vs baseline: +5.0%

✅ tracer-minimal

Time: ✅ 17.873ms (SLO: <18.500ms -3.4%) vs baseline: +0.2%

Memory: ✅ 71.457MB (SLO: <75.000MB -4.7%) vs baseline: +4.9%

✅ tracer-no-caches

Time: ✅ 18.888ms (SLO: <19.650ms -3.9%) vs baseline: ~same

Memory: ✅ 71.447MB (SLO: <75.000MB -4.7%) vs baseline: +4.9%

✅ tracer-no-databases

Time: ✅ 20.635ms (SLO: <21.100ms -2.2%) vs baseline: -0.4%

Memory: ✅ 71.467MB (SLO: <75.000MB -4.7%) vs baseline: +4.9%

✅ tracer-no-middleware

Time: ✅ 20.718ms (SLO: <21.500ms -3.6%) vs baseline: -0.7%

Memory: ✅ 71.447MB (SLO: <75.000MB -4.7%) vs baseline: +4.9%

✅ tracer-no-templates

Time: ✅ 19.646ms (SLO: <22.000ms 📉 -10.7%) vs baseline: +1.6%

Memory: ✅ 71.346MB (SLO: <73.500MB -2.9%) vs baseline: +4.7%

🟡 otelspan - 22/22

✅ add-event

Time: ✅ 41.591ms (SLO: <47.150ms 📉 -11.8%) vs baseline: +0.4%

Memory: ✅ 41.659MB (SLO: <47.000MB 📉 -11.4%) vs baseline: +5.4%

✅ add-metrics

Time: ✅ 236.010ms (SLO: <344.800ms 📉 -31.6%) vs baseline: +0.1%

Memory: ✅ 45.510MB (SLO: <47.500MB -4.2%) vs baseline: +5.4%

✅ add-tags

Time: ✅ 264.216ms (SLO: <330.000ms 📉 -19.9%) vs baseline: -0.5%

Memory: ✅ 45.450MB (SLO: <47.500MB -4.3%) vs baseline: +5.0%

✅ get-context

Time: ✅ 80.801ms (SLO: <92.350ms 📉 -12.5%) vs baseline: +0.6%

Memory: ✅ 41.209MB (SLO: <46.500MB 📉 -11.4%) vs baseline: +5.4%

✅ is-recording

Time: ✅ 37.667ms (SLO: <44.500ms 📉 -15.4%) vs baseline: +0.1%

Memory: ✅ 41.122MB (SLO: <47.500MB 📉 -13.4%) vs baseline: +5.5%

✅ record-exception

Time: ✅ 62.757ms (SLO: <67.650ms -7.2%) vs baseline: +0.1%

Memory: ✅ 41.820MB (SLO: <47.000MB 📉 -11.0%) vs baseline: +5.2%

✅ set-status

Time: ✅ 43.574ms (SLO: <50.400ms 📉 -13.5%) vs baseline: +0.4%

Memory: ✅ 41.021MB (SLO: <47.000MB 📉 -12.7%) vs baseline: +4.8%

✅ start

Time: ✅ 38.785ms (SLO: <44.500ms 📉 -12.8%) vs baseline: +4.8%

Memory: ✅ 41.009MB (SLO: <47.000MB 📉 -12.7%) vs baseline: +5.2%

✅ start-finish

Time: ✅ 89.771ms (SLO: <92.000ms -2.4%) vs baseline: -0.5%

Memory: ✅ 38.810MB (SLO: <46.500MB 📉 -16.5%) vs baseline: +5.4%

✅ start-finish-telemetry

Time: ✅ 91.651ms (SLO: <93.000ms 🟡 -1.5%) vs baseline: -0.3%

Memory: ✅ 38.712MB (SLO: <46.500MB 📉 -16.7%) vs baseline: +5.1%

✅ update-name

Time: ✅ 38.968ms (SLO: <45.150ms 📉 -13.7%) vs baseline: +0.4%

Memory: ✅ 41.018MB (SLO: <47.000MB 📉 -12.7%) vs baseline: +5.0%

🟡 recursivecomputation - 8/8

✅ deep

Time: ✅ 311.897ms (SLO: <320.950ms -2.8%) vs baseline: ~same

Memory: ✅ 37.316MB (SLO: <38.750MB -3.7%) vs baseline: +5.9%

✅ deep-profiled

Time: ✅ 331.470ms (SLO: <359.150ms -7.7%) vs baseline: +0.4%

Memory: ✅ 43.529MB (SLO: <46.000MB -5.4%) vs baseline: +5.7%

✅ medium

Time: ✅ 7.339ms (SLO: <7.450ms 🟡 -1.5%) vs baseline: +0.1%

Memory: ✅ 36.156MB (SLO: <38.000MB -4.9%) vs baseline: +4.9%

✅ shallow

Time: ✅ 1.039ms (SLO: <1.050ms 🟡 -1.0%) vs baseline: +2.4%

Memory: ✅ 36.176MB (SLO: <38.000MB -4.8%) vs baseline: +5.0%

🟡 span - 26/26

✅ add-event

Time: ✅ 20.449ms (SLO: <22.500ms -9.1%) vs baseline: +0.5%

Memory: ✅ 38.614MB (SLO: <53.000MB 📉 -27.1%) vs baseline: +5.0%

✅ add-metrics

Time: ✅ 89.807ms (SLO: <93.500ms -3.9%) vs baseline: -0.9%

Memory: ✅ 42.880MB (SLO: <53.000MB 📉 -19.1%) vs baseline: +5.0%

✅ add-tags

Time: ✅ 135.365ms (SLO: <155.000ms 📉 -12.7%) vs baseline: -0.4%

Memory: ✅ 42.729MB (SLO: <53.000MB 📉 -19.4%) vs baseline: +5.0%

✅ get-context

Time: ✅ 17.905ms (SLO: <20.500ms 📉 -12.7%) vs baseline: +1.0%

Memory: ✅ 38.142MB (SLO: <53.000MB 📉 -28.0%) vs baseline: +5.9%

✅ is-recording

Time: ✅ 18.074ms (SLO: <20.500ms 📉 -11.8%) vs baseline: +1.8%

Memory: ✅ 38.083MB (SLO: <53.000MB 📉 -28.1%) vs baseline: +5.8%

✅ record-exception

Time: ✅ 41.727ms (SLO: <42.000ms 🟡 -0.6%) vs baseline: -0.7%

Memory: ✅ 39.007MB (SLO: <53.000MB 📉 -26.4%) vs baseline: +5.2%

✅ set-status

Time: ✅ 19.580ms (SLO: <22.000ms 📉 -11.0%) vs baseline: +0.8%

Memory: ✅ 38.201MB (SLO: <53.000MB 📉 -27.9%) vs baseline: +5.8%

✅ start

Time: ✅ 18.848ms (SLO: <20.500ms -8.1%) vs baseline: +6.9%

Memory: ✅ 38.181MB (SLO: <53.000MB 📉 -28.0%) vs baseline: +6.0%

✅ start-finish

Time: ✅ 58.071ms (SLO: <58.500ms 🟡 -0.7%) vs baseline: +0.2%

Memory: ✅ 36.196MB (SLO: <38.000MB -4.7%) vs baseline: +4.7%

✅ start-finish-telemetry

Time: ✅ 59.165ms (SLO: <60.000ms 🟡 -1.4%) vs baseline: -0.6%

Memory: ✅ 36.196MB (SLO: <38.000MB -4.7%) vs baseline: +4.7%

✅ start-finish-traceid128

Time: ✅ 60.314ms (SLO: <62.000ms -2.7%) vs baseline: -0.4%

Memory: ✅ 36.117MB (SLO: <38.000MB -5.0%) vs baseline: +4.7%

✅ start-traceid128

Time: ✅ 17.733ms (SLO: <22.500ms 📉 -21.2%) vs baseline: +0.2%

Memory: ✅ 38.083MB (SLO: <53.000MB 📉 -28.1%) vs baseline: +5.0%

✅ update-name

Time: ✅ 18.496ms (SLO: <22.000ms 📉 -15.9%) vs baseline: +1.7%

Memory: ✅ 38.248MB (SLO: <53.000MB 📉 -27.8%) vs baseline: +5.2%

🟡 tracer - 6/6

✅ large

Time: ✅ 32.873ms (SLO: <33.950ms -3.2%) vs baseline: +1.0%

Memory: ✅ 37.493MB (SLO: <39.250MB -4.5%) vs baseline: +5.3%

✅ medium

Time: ✅ 3.190ms (SLO: <3.500ms -8.9%) vs baseline: +1.3%

Memory: ✅ 36.294MB (SLO: <38.750MB -6.3%) vs baseline: +5.0%

✅ small

Time: ✅ 385.855µs (SLO: <390.000µs 🟡 -1.1%) vs baseline: +4.2%

Memory: ✅ 36.117MB (SLO: <38.750MB -6.8%) vs baseline: +4.7%

⚠️ Unstable Tests (2 suites)

⚠️

coreapiscenario - 10/10 (1 unstable)

⚠️ context_with_data_listeners

Time: ⚠️ 13.653µs (SLO: <20.000µs 📉 -31.7%) vs baseline: -0.1%

Memory: ✅ 36.215MB (SLO: <38.000MB -4.7%) vs baseline: +5.1%

✅ context_with_data_no_listeners

Time: ✅ 3.584µs (SLO: <10.000µs 📉 -64.2%) vs baseline: -1.2%

Memory: ✅ 36.255MB (SLO: <38.000MB -4.6%) vs baseline: +5.3%

✅ get_item_exists

Time: ✅ 0.588µs (SLO: <10.000µs 📉 -94.1%) vs baseline: +1.2%

Memory: ✅ 36.117MB (SLO: <38.000MB -5.0%) vs baseline: +4.6%

✅ get_item_missing

Time: ✅ 0.638µs (SLO: <10.000µs 📉 -93.6%) vs baseline: -0.4%

Memory: ✅ 36.117MB (SLO: <38.000MB -5.0%) vs baseline: +4.4%

✅ set_item

Time: ✅ 24.913µs (SLO: <30.000µs 📉 -17.0%) vs baseline: +1.9%

Memory: ✅ 36.176MB (SLO: <38.000MB -4.8%) vs baseline: +4.8%

⚠️

packagesupdateimporteddependencies - 24/24 (1 unstable)

✅ import_many

Time: ✅ 157.495µs (SLO: <170.000µs -7.4%) vs baseline: +0.6%

Memory: ✅ 40.513MB (SLO: <46.000MB 📉 -11.9%) vs baseline: +4.9%

✅ import_many_cached

Time: ✅ 121.529µs (SLO: <130.000µs -6.5%) vs baseline: -0.1%

Memory: ✅ 40.439MB (SLO: <46.000MB 📉 -12.1%) vs baseline: +4.9%

✅ import_many_stdlib

Time: ✅ 1.263ms (SLO: <1.750ms 📉 -27.8%) vs baseline: +1.2%

Memory: ✅ 40.477MB (SLO: <46.000MB 📉 -12.0%) vs baseline: +4.8%

⚠️ import_many_stdlib_cached

Time: ⚠️ 0.620ms (SLO: <1.100ms 📉 -43.7%) vs baseline: -0.9%

Memory: ✅ 40.490MB (SLO: <46.000MB 📉 -12.0%) vs baseline: +5.2%

✅ import_many_unknown

Time: ✅ 833.779µs (SLO: <890.000µs -6.3%) vs baseline: ~same

Memory: ✅ 40.632MB (SLO: <46.000MB 📉 -11.7%) vs baseline: +4.7%

✅ import_many_unknown_cached

Time: ✅ 797.009µs (SLO: <870.000µs -8.4%) vs baseline: +0.3%

Memory: ✅ 40.603MB (SLO: <46.000MB 📉 -11.7%) vs baseline: +5.2%

✅ import_one

Time: ✅ 21.156µs (SLO: <30.000µs 📉 -29.5%) vs baseline: ~same

Memory: ✅ 40.592MB (SLO: <46.000MB 📉 -11.8%) vs baseline: +5.7%

✅ import_one_cache

Time: ✅ 7.310µs (SLO: <10.000µs 📉 -26.9%) vs baseline: -0.9%

Memory: ✅ 40.476MB (SLO: <46.000MB 📉 -12.0%) vs baseline: +4.7%

✅ import_one_stdlib

Time: ✅ 20.080µs (SLO: <30.000µs 📉 -33.1%) vs baseline: +0.3%

Memory: ✅ 40.494MB (SLO: <46.000MB 📉 -12.0%) vs baseline: +5.0%

✅ import_one_stdlib_cache

Time: ✅ 7.355µs (SLO: <10.000µs 📉 -26.5%) vs baseline: +0.5%

Memory: ✅ 40.569MB (SLO: <46.000MB 📉 -11.8%) vs baseline: +5.2%

✅ import_one_unknown

Time: ✅ 46.800µs (SLO: <50.000µs -6.4%) vs baseline: ~same

Memory: ✅ 40.625MB (SLO: <46.000MB 📉 -11.7%) vs baseline: +5.3%

✅ import_one_unknown_cache

Time: ✅ 7.327µs (SLO: <10.000µs 📉 -26.7%) vs baseline: ~same

Memory: ✅ 40.590MB (SLO: <43.000MB -5.6%) vs baseline: +5.3%

✅ All Tests Passing (16 suites)

✅ codeprovenancefork - 2/2

✅ fork-10

Time: ✅ 2.194s (SLO: <2.400s -8.6%) vs baseline: +2.6%

Memory: ✅ 17.419MB (SLO: <20.000MB 📉 -12.9%) vs baseline: +5.2%

✅ errortrackingdjangosimple - 6/6

✅ errortracking-enabled-all

Time: ✅ 17.404ms (SLO: <19.850ms 📉 -12.3%) vs baseline: -1.2%

Memory: ✅ 71.408MB (SLO: <75.000MB -4.8%) vs baseline: +5.7%

✅ errortracking-enabled-user

Time: ✅ 17.497ms (SLO: <19.400ms -9.8%) vs baseline: -0.2%

Memory: ✅ 71.349MB (SLO: <75.000MB -4.9%) vs baseline: +5.6%

✅ tracer-enabled

Time: ✅ 17.475ms (SLO: <19.450ms 📉 -10.2%) vs baseline: -0.1%

Memory: ✅ 71.270MB (SLO: <75.000MB -5.0%) vs baseline: +5.4%

✅ errortrackingflasksqli - 6/6

✅ errortracking-enabled-all

Time: ✅ 2.116ms (SLO: <2.300ms -8.0%) vs baseline: ~same

Memory: ✅ 58.286MB (SLO: <60.000MB -2.9%) vs baseline: +4.8%

✅ errortracking-enabled-user

Time: ✅ 2.127ms (SLO: <2.250ms -5.5%) vs baseline: +0.5%

Memory: ✅ 58.334MB (SLO: <60.000MB -2.8%) vs baseline: +4.7%

✅ tracer-enabled

Time: ✅ 2.115ms (SLO: <2.300ms -8.0%) vs baseline: ~same

Memory: ✅ 58.550MB (SLO: <60.000MB -2.4%) vs baseline: +5.2%

✅ flasksimple - 16/16

✅ appsec-get

Time: ✅ 3.396ms (SLO: <4.750ms 📉 -28.5%) vs baseline: -0.2%

Memory: ✅ 58.636MB (SLO: <66.500MB 📉 -11.8%) vs baseline: +5.2%

✅ appsec-post

Time: ✅ 2.893ms (SLO: <6.750ms 📉 -57.1%) vs baseline: -0.2%

Memory: ✅ 58.636MB (SLO: <66.500MB 📉 -11.8%) vs baseline: +5.1%

✅ appsec-telemetry

Time: ✅ 3.385ms (SLO: <4.750ms 📉 -28.7%) vs baseline: +0.3%

Memory: ✅ 58.570MB (SLO: <66.500MB 📉 -11.9%) vs baseline: +4.9%

✅ debugger

Time: ✅ 1.882ms (SLO: <2.000ms -5.9%) vs baseline: +0.2%

Memory: ✅ 49.324MB (SLO: <51.500MB -4.2%) vs baseline: +5.1%

✅ iast-get

Time: ✅ 1.865ms (SLO: <2.000ms -6.7%) vs baseline: ~same

Memory: ✅ 46.021MB (SLO: <49.000MB -6.1%) vs baseline: +5.1%

✅ profiler

Time: ✅ 1.904ms (SLO: <2.100ms -9.4%) vs baseline: -0.2%

Memory: ✅ 52.253MB (SLO: <53.500MB -2.3%) vs baseline: +5.5%

✅ resource-renaming

Time: ✅ 3.377ms (SLO: <3.650ms -7.5%) vs baseline: +0.1%

Memory: ✅ 58.569MB (SLO: <60.000MB -2.4%) vs baseline: +5.0%

✅ tracer

Time: ✅ 3.383ms (SLO: <3.650ms -7.3%) vs baseline: +0.1%

Memory: ✅ 58.643MB (SLO: <60.000MB -2.3%) vs baseline: +5.3%

✅ flasksqli - 6/6

✅ appsec-enabled

Time: ✅ 2.110ms (SLO: <4.200ms 📉 -49.8%) vs baseline: ~same

Memory: ✅ 58.491MB (SLO: <66.000MB 📉 -11.4%) vs baseline: +4.6%

✅ iast-enabled

Time: ✅ 2.115ms (SLO: <2.800ms 📉 -24.5%) vs baseline: ~same

Memory: ✅ 58.648MB (SLO: <62.500MB -6.2%) vs baseline: +5.1%

✅ tracer-enabled

Time: ✅ 2.110ms (SLO: <2.250ms -6.2%) vs baseline: -0.2%

Memory: ✅ 58.570MB (SLO: <60.000MB -2.4%) vs baseline: +5.0%

✅ forktime - 4/4

✅ baseline

Time: ✅ 1.937ms (SLO: <3.000ms 📉 -35.4%) vs baseline: +3.7%

Memory: ✅ 29.354MB (SLO: <33.000MB 📉 -11.0%) vs baseline: +5.1%

✅ configured

Time: ✅ 9.381ms (SLO: <17.000ms 📉 -44.8%) vs baseline: ~same

Memory: ✅ 58.511MB (SLO: <60.000MB -2.5%) vs baseline: +4.7%

✅ httppropagationextract - 60/60

✅ all_styles_all_headers

Time: ✅ 76.333µs (SLO: <100.000µs 📉 -23.7%) vs baseline: -0.6%

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +5.0%

✅ b3_headers

Time: ✅ 12.835µs (SLO: <20.000µs 📉 -35.8%) vs baseline: -0.6%

Memory: ✅ 36.235MB (SLO: <38.000MB -4.6%) vs baseline: +4.9%

✅ b3_single_headers

Time: ✅ 11.865µs (SLO: <20.000µs 📉 -40.7%) vs baseline: -0.5%

Memory: ✅ 36.333MB (SLO: <38.000MB -4.4%) vs baseline: +5.1%

✅ datadog_tracecontext_tracestate_not_propagated_on_trace_id_no_match

Time: ✅ 60.058µs (SLO: <80.000µs 📉 -24.9%) vs baseline: -0.3%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +5.4%

✅ datadog_tracecontext_tracestate_propagated_on_trace_id_match

Time: ✅ 63.477µs (SLO: <80.000µs 📉 -20.7%) vs baseline: ~same

Memory: ✅ 36.392MB (SLO: <38.000MB -4.2%) vs baseline: +5.2%

✅ empty_headers

Time: ✅ 1.293µs (SLO: <10.000µs 📉 -87.1%) vs baseline: -0.4%

Memory: ✅ 36.294MB (SLO: <38.000MB -4.5%) vs baseline: +5.0%

✅ full_t_id_datadog_headers

Time: ✅ 21.639µs (SLO: <30.000µs 📉 -27.9%) vs baseline: -0.2%

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +5.1%

✅ invalid_priority_header

Time: ✅ 5.970µs (SLO: <10.000µs 📉 -40.3%) vs baseline: +0.9%

Memory: ✅ 36.490MB (SLO: <38.000MB -4.0%) vs baseline: +5.5%

✅ invalid_span_id_header

Time: ✅ 5.960µs (SLO: <10.000µs 📉 -40.4%) vs baseline: +0.2%

Memory: ✅ 36.392MB (SLO: <38.000MB -4.2%) vs baseline: +5.2%

✅ invalid_tags_header

Time: ✅ 5.966µs (SLO: <10.000µs 📉 -40.3%) vs baseline: +0.5%

Memory: ✅ 36.392MB (SLO: <38.000MB -4.2%) vs baseline: +5.3%

✅ invalid_trace_id_header

Time: ✅ 5.971µs (SLO: <10.000µs 📉 -40.3%) vs baseline: ~same

Memory: ✅ 36.451MB (SLO: <38.000MB -4.1%)

✅ large_header_no_matches

Time: ✅ 27.234µs (SLO: <30.000µs -9.2%) vs baseline: -0.5%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +5.3%

✅ large_valid_headers_all

Time: ✅ 28.335µs (SLO: <40.000µs 📉 -29.2%) vs baseline: +0.3%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +5.3%

✅ medium_header_no_matches

Time: ✅ 9.277µs (SLO: <20.000µs 📉 -53.6%) vs baseline: -0.2%

Memory: ✅ 36.372MB (SLO: <38.000MB -4.3%) vs baseline: +5.2%

✅ medium_valid_headers_all

Time: ✅ 10.686µs (SLO: <20.000µs 📉 -46.6%) vs baseline: ~same

Memory: ✅ 36.255MB (SLO: <38.000MB -4.6%)

✅ none_propagation_style

Time: ✅ 1.394µs (SLO: <10.000µs 📉 -86.1%) vs baseline: -0.1%

Memory: ✅ 36.510MB (SLO: <38.000MB -3.9%) vs baseline: +5.8%

✅ tracecontext_headers

Time: ✅ 32.654µs (SLO: <40.000µs 📉 -18.4%) vs baseline: -0.1%

Memory: ✅ 36.510MB (SLO: <38.000MB -3.9%) vs baseline: +5.5%

✅ valid_headers_all

Time: ✅ 5.949µs (SLO: <10.000µs 📉 -40.5%) vs baseline: +0.2%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +5.2%

✅ valid_headers_basic

Time: ✅ 5.548µs (SLO: <10.000µs 📉 -44.5%) vs baseline: +0.5%

Memory: ✅ 36.471MB (SLO: <38.000MB -4.0%) vs baseline: +5.6%

✅ wsgi_empty_headers

Time: ✅ 1.297µs (SLO: <10.000µs 📉 -87.0%) vs baseline: -1.0%

Memory: ✅ 36.392MB (SLO: <38.000MB -4.2%) vs baseline: +5.4%

✅ wsgi_invalid_priority_header

Time: ✅ 5.982µs (SLO: <10.000µs 📉 -40.2%) vs baseline: +0.8%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +5.0%

✅ wsgi_invalid_span_id_header

Time: ✅ 1.307µs (SLO: <10.000µs 📉 -86.9%) vs baseline: ~same

Memory: ✅ 36.156MB (SLO: <38.000MB -4.9%) vs baseline: +4.6%

✅ wsgi_invalid_tags_header

Time: ✅ 5.955µs (SLO: <10.000µs 📉 -40.5%) vs baseline: -0.4%

Memory: ✅ 36.372MB (SLO: <38.000MB -4.3%) vs baseline: +5.3%

✅ wsgi_invalid_trace_id_header

Time: ✅ 5.983µs (SLO: <10.000µs 📉 -40.2%) vs baseline: +0.6%

Memory: ✅ 36.608MB (SLO: <38.000MB -3.7%) vs baseline: +5.8%

✅ wsgi_large_header_no_matches

Time: ✅ 28.180µs (SLO: <40.000µs 📉 -29.6%) vs baseline: -0.2%

Memory: ✅ 36.451MB (SLO: <38.000MB -4.1%) vs baseline: +5.5%

✅ wsgi_large_valid_headers_all

Time: ✅ 29.378µs (SLO: <40.000µs 📉 -26.6%) vs baseline: +0.6%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +5.3%

✅ wsgi_medium_header_no_matches

Time: ✅ 9.513µs (SLO: <20.000µs 📉 -52.4%) vs baseline: +0.2%

Memory: ✅ 36.589MB (SLO: <38.000MB -3.7%) vs baseline: +5.8%

✅ wsgi_medium_valid_headers_all

Time: ✅ 10.900µs (SLO: <20.000µs 📉 -45.5%) vs baseline: -0.3%

Memory: ✅ 36.549MB (SLO: <38.000MB -3.8%) vs baseline: +5.8%

✅ wsgi_valid_headers_all

Time: ✅ 5.981µs (SLO: <10.000µs 📉 -40.2%) vs baseline: +0.4%

Memory: ✅ 36.471MB (SLO: <38.000MB -4.0%) vs baseline: +5.7%

✅ wsgi_valid_headers_basic

Time: ✅ 5.557µs (SLO: <10.000µs 📉 -44.4%) vs baseline: +0.4%

Memory: ✅ 36.372MB (SLO: <38.000MB -4.3%) vs baseline: +5.3%

✅ httppropagationinject - 16/16

✅ ids_only

Time: ✅ 20.741µs (SLO: <30.000µs 📉 -30.9%) vs baseline: +3.0%

Memory: ✅ 36.333MB (SLO: <38.000MB -4.4%) vs baseline: +5.1%

✅ with_all

Time: ✅ 26.859µs (SLO: <40.000µs 📉 -32.9%) vs baseline: -0.5%

Memory: ✅ 36.333MB (SLO: <38.000MB -4.4%) vs baseline: +5.1%

✅ with_dd_origin

Time: ✅ 23.762µs (SLO: <30.000µs 📉 -20.8%) vs baseline: -0.3%

Memory: ✅ 36.569MB (SLO: <38.000MB -3.8%) vs baseline: +5.8%

✅ with_priority_and_origin

Time: ✅ 23.227µs (SLO: <40.000µs 📉 -41.9%) vs baseline: -0.5%

Memory: ✅ 36.372MB (SLO: <38.000MB -4.3%) vs baseline: +5.3%

✅ with_sampling_priority

Time: ✅ 20.095µs (SLO: <30.000µs 📉 -33.0%) vs baseline: -0.6%

Memory: ✅ 36.294MB (SLO: <38.000MB -4.5%) vs baseline: +5.0%

✅ with_tags

Time: ✅ 25.058µs (SLO: <40.000µs 📉 -37.4%) vs baseline: ~same

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +5.3%

✅ with_tags_invalid

Time: ✅ 26.467µs (SLO: <40.000µs 📉 -33.8%) vs baseline: ~same

Memory: ✅ 36.333MB (SLO: <38.000MB -4.4%) vs baseline: +5.0%

✅ with_tags_max_size

Time: ✅ 25.436µs (SLO: <40.000µs 📉 -36.4%) vs baseline: -0.6%

Memory: ✅ 36.294MB (SLO: <38.000MB -4.5%) vs baseline: +5.0%

✅ iastaspectssplit - 12/12

✅ rsplit_aspect

Time: ✅ 160.586µs (SLO: <250.000µs 📉 -35.8%) vs baseline: +0.2%

Memory: ✅ 44.041MB (SLO: <46.000MB -4.3%) vs baseline: +5.5%

✅ rsplit_noaspect

Time: ✅ 159.249µs (SLO: <250.000µs 📉 -36.3%) vs baseline: -5.6%

Memory: ✅ 43.825MB (SLO: <46.000MB -4.7%) vs baseline: +5.0%

✅ split_aspect

Time: ✅ 149.017µs (SLO: <250.000µs 📉 -40.4%) vs baseline: -5.0%

Memory: ✅ 43.806MB (SLO: <46.000MB -4.8%) vs baseline: +5.0%

✅ split_noaspect

Time: ✅ 154.468µs (SLO: <250.000µs 📉 -38.2%) vs baseline: -4.0%

Memory: ✅ 43.929MB (SLO: <46.000MB -4.5%) vs baseline: +5.3%

✅ splitlines_aspect

Time: ✅ 145.989µs (SLO: <250.000µs 📉 -41.6%) vs baseline: -6.0%

Memory: ✅ 43.838MB (SLO: <46.000MB -4.7%) vs baseline: +4.9%

✅ splitlines_noaspect

Time: ✅ 154.228µs (SLO: <250.000µs 📉 -38.3%) vs baseline: -3.5%

Memory: ✅ 43.948MB (SLO: <46.000MB -4.5%) vs baseline: +5.3%

✅ iastpropagation - 8/8

✅ no-propagation

Time: ✅ 48.724µs (SLO: <60.000µs 📉 -18.8%) vs baseline: ~same

Memory: ✅ 41.052MB (SLO: <42.000MB -2.3%) vs baseline: +5.2%

✅ propagation_enabled

Time: ✅ 135.941µs (SLO: <190.000µs 📉 -28.5%) vs baseline: -1.0%

Memory: ✅ 40.914MB (SLO: <42.000MB -2.6%) vs baseline: +5.0%

✅ propagation_enabled_100

Time: ✅ 1.553ms (SLO: <2.300ms 📉 -32.5%) vs baseline: -1.2%

Memory: ✅ 40.973MB (SLO: <42.000MB -2.4%) vs baseline: +5.4%

✅ propagation_enabled_1000

Time: ✅ 29.133ms (SLO: <34.550ms 📉 -15.7%) vs baseline: -0.6%

Memory: ✅ 40.816MB (SLO: <42.000MB -2.8%) vs baseline: +4.8%

✅ otelsdkspan - 24/24

✅ add-event

Time: ✅ 40.619ms (SLO: <42.000ms -3.3%) vs baseline: +0.3%

Memory: ✅ 39.105MB (SLO: <40.750MB -4.0%) vs baseline: +5.1%

✅ add-link

Time: ✅ 36.344ms (SLO: <38.550ms -5.7%) vs baseline: -0.4%

Memory: ✅ 39.105MB (SLO: <40.750MB -4.0%) vs baseline: +5.2%

✅ add-metrics

Time: ✅ 220.487ms (SLO: <232.000ms -5.0%) vs baseline: -0.1%

Memory: ✅ 39.046MB (SLO: <40.750MB -4.2%) vs baseline: +4.9%

✅ add-tags

Time: ✅ 212.379ms (SLO: <221.600ms -4.2%) vs baseline: +0.4%

Memory: ✅ 39.046MB (SLO: <40.750MB -4.2%) vs baseline: +5.1%

✅ get-context

Time: ✅ 29.127ms (SLO: <31.300ms -6.9%) vs baseline: +0.5%

Memory: ✅ 39.125MB (SLO: <40.750MB -4.0%) vs baseline: +5.3%

✅ is-recording

Time: ✅ 29.015ms (SLO: <31.000ms -6.4%) vs baseline: -0.3%

Memory: ✅ 39.066MB (SLO: <40.750MB -4.1%) vs baseline: +5.6%

✅ record-exception

Time: ✅ 63.445ms (SLO: <65.850ms -3.7%) vs baseline: ~same

Memory: ✅ 39.046MB (SLO: <40.750MB -4.2%) vs baseline: +5.0%

✅ set-status

Time: ✅ 31.932ms (SLO: <34.150ms -6.5%) vs baseline: +0.7%

Memory: ✅ 39.086MB (SLO: <40.750MB -4.1%) vs baseline: +5.3%

✅ start

Time: ✅ 29.357ms (SLO: <30.150ms -2.6%) vs baseline: +1.6%

Memory: ✅ 39.046MB (SLO: <40.750MB -4.2%) vs baseline: +5.1%

✅ start-finish

Time: ✅ 34.103ms (SLO: <35.350ms -3.5%) vs baseline: ~same

Memory: ✅ 38.987MB (SLO: <40.750MB -4.3%) vs baseline: +4.7%

✅ start-finish-telemetry

Time: ✅ 34.088ms (SLO: <35.450ms -3.8%) vs baseline: -0.2%

Memory: ✅ 39.066MB (SLO: <40.750MB -4.1%) vs baseline: +5.0%

✅ update-name

Time: ✅ 31.209ms (SLO: <33.400ms -6.6%) vs baseline: +0.4%

Memory: ✅ 38.948MB (SLO: <40.750MB -4.4%) vs baseline: +5.2%

✅ packagespackageforrootmodulemapping - 4/4

✅ cache_off

Time: ✅ 345.391ms (SLO: <354.300ms -2.5%) vs baseline: -0.1%

Memory: ✅ 42.977MB (SLO: <46.000MB -6.6%) vs baseline: +5.3%

✅ cache_on

Time: ✅ 0.387µs (SLO: <10.000µs 📉 -96.1%) vs baseline: +1.5%

Memory: ✅ 41.413MB (SLO: <46.000MB -10.0%) vs baseline: +5.4%

✅ ratelimiter - 12/12

✅ defaults

Time: ✅ 2.348µs (SLO: <10.000µs 📉 -76.5%) vs baseline: ~same

Memory: ✅ 36.510MB (SLO: <38.000MB -3.9%) vs baseline: +5.0%

✅ high_rate_limit

Time: ✅ 2.412µs (SLO: <10.000µs 📉 -75.9%) vs baseline: ~same

Memory: ✅ 36.451MB (SLO: <38.000MB -4.1%) vs baseline: +4.7%

✅ long_window

Time: ✅ 2.352µs (SLO: <10.000µs 📉 -76.5%) vs baseline: -0.3%

Memory: ✅ 36.569MB (SLO: <38.000MB -3.8%) vs baseline: +5.0%

✅ low_rate_limit

Time: ✅ 2.347µs (SLO: <10.000µs 📉 -76.5%) vs baseline: -0.8%

Memory: ✅ 36.431MB (SLO: <38.000MB -4.1%) vs baseline: +4.7%

✅ no_rate_limit

Time: ✅ 0.841µs (SLO: <10.000µs 📉 -91.6%) vs baseline: +1.4%

Memory: ✅ 36.530MB (SLO: <38.000MB -3.9%) vs baseline: +5.1%

✅ short_window

Time: ✅ 2.496µs (SLO: <10.000µs 📉 -75.0%) vs baseline: -0.4%

Memory: ✅ 36.431MB (SLO: <38.000MB -4.1%) vs baseline: +4.9%

✅ samplingrules - 8/8

✅ average_match

Time: ✅ 147.239µs (SLO: <200.000µs 📉 -26.4%) vs baseline: +0.3%

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +5.1%

✅ high_match

Time: ✅ 167.223µs (SLO: <200.000µs 📉 -16.4%) vs baseline: ~same

Memory: ✅ 36.156MB (SLO: <38.000MB -4.9%) vs baseline: +5.1%

✅ low_match

Time: ✅ 121.802µs (SLO: <130.000µs -6.3%) vs baseline: -1.0%

Memory: ✅ 619.405MB (SLO: <780.000MB 📉 -20.6%) vs baseline: +4.9%

✅ very_low_match

Time: ✅ 2.669ms (SLO: <4.000ms 📉 -33.3%) vs baseline: -0.8%

Memory: ✅ 73.739MB (SLO: <85.000MB 📉 -13.2%) vs baseline: +5.1%

✅ sethttpmeta - 32/32

✅ all-disabled

Time: ✅ 10.580µs (SLO: <20.000µs 📉 -47.1%) vs baseline: -0.2%

Memory: ✅ 37.159MB (SLO: <38.750MB -4.1%) vs baseline: +5.1%

✅ all-enabled

Time: ✅ 40.249µs (SLO: <50.000µs 📉 -19.5%) vs baseline: +2.0%

Memory: ✅ 37.238MB (SLO: <38.750MB -3.9%) vs baseline: +5.4%

✅ collectipvariant_exists

Time: ✅ 40.106µs (SLO: <50.000µs 📉 -19.8%) vs baseline: ~same

Memory: ✅ 37.238MB (SLO: <38.750MB -3.9%) vs baseline: +5.0%

✅ no-collectipvariant

Time: ✅ 39.283µs (SLO: <50.000µs 📉 -21.4%) vs baseline: -0.5%

Memory: ✅ 37.139MB (SLO: <38.750MB -4.2%) vs baseline: +5.0%

✅ no-useragentvariant

Time: ✅ 37.962µs (SLO: <50.000µs 📉 -24.1%) vs baseline: ~same

Memory: ✅ 37.080MB (SLO: <38.750MB -4.3%) vs baseline: +4.6%

✅ obfuscation-no-query

Time: ✅ 39.774µs (SLO: <50.000µs 📉 -20.5%) vs baseline: -0.4%

Memory: ✅ 37.139MB (SLO: <38.750MB -4.2%) vs baseline: +5.1%

✅ obfuscation-regular-case-explicit-query

Time: ✅ 75.764µs (SLO: <90.000µs 📉 -15.8%) vs baseline: +0.1%

Memory: ✅ 37.375MB (SLO: <38.750MB -3.5%) vs baseline: +5.0%

✅ obfuscation-regular-case-implicit-query

Time: ✅ 76.371µs (SLO: <90.000µs 📉 -15.1%) vs baseline: +0.3%

Memory: ✅ 37.591MB (SLO: <38.750MB -3.0%) vs baseline: +5.2%

✅ obfuscation-send-querystring-disabled

Time: ✅ 154.389µs (SLO: <170.000µs -9.2%) vs baseline: ~same

Memory: ✅ 37.493MB (SLO: <38.750MB -3.2%) vs baseline: +5.1%

✅ obfuscation-worst-case-explicit-query

Time: ✅ 148.946µs (SLO: <160.000µs -6.9%) vs baseline: ~same

Memory: ✅ 37.532MB (SLO: <38.750MB -3.1%) vs baseline: +5.0%

✅ obfuscation-worst-case-implicit-query

Time: ✅ 154.744µs (SLO: <170.000µs -9.0%) vs baseline: -0.5%

Memory: ✅ 37.631MB (SLO: <38.750MB -2.9%) vs baseline: +5.4%

✅ useragentvariant_exists_1

Time: ✅ 38.898µs (SLO: <50.000µs 📉 -22.2%) vs baseline: -0.2%

Memory: ✅ 37.375MB (SLO: <38.750MB -3.5%) vs baseline: +5.7%

✅ useragentvariant_exists_2

Time: ✅ 40.027µs (SLO: <50.000µs 📉 -19.9%) vs baseline: -0.1%

Memory: ✅ 37.021MB (SLO: <38.750MB -4.5%) vs baseline: +4.7%

✅ useragentvariant_exists_3

Time: ✅ 39.424µs (SLO: <50.000µs 📉 -21.2%) vs baseline: +0.2%

Memory: ✅ 37.061MB (SLO: <38.750MB -4.4%) vs baseline: +4.4%

✅ useragentvariant_not_exists_1

Time: ✅ 39.168µs (SLO: <50.000µs 📉 -21.7%) vs baseline: +1.0%

Memory: ✅ 37.238MB (SLO: <38.750MB -3.9%) vs baseline: +5.5%

✅ useragentvariant_not_exists_2

Time: ✅ 38.782µs (SLO: <50.000µs 📉 -22.4%) vs baseline: ~same

Memory: ✅ 37.061MB (SLO: <38.750MB -4.4%) vs baseline: +4.8%

✅ telemetryaddmetric - 30/30

✅ 1-count-metric-1-times

Time: ✅ 2.352µs (SLO: <20.000µs 📉 -88.2%) vs baseline: +9.6%

Memory: ✅ 36.510MB (SLO: <38.000MB -3.9%) vs baseline: +5.5%

✅ 1-count-metrics-100-times

Time: ✅ 152.684µs (SLO: <220.000µs 📉 -30.6%) vs baseline: -0.9%

Memory: ✅ 36.549MB (SLO: <38.000MB -3.8%) vs baseline: +5.6%

✅ 1-distribution-metric-1-times

Time: ✅ 2.484µs (SLO: <20.000µs 📉 -87.6%) vs baseline: +2.9%

Memory: ✅ 36.549MB (SLO: <38.000MB -3.8%) vs baseline: +6.2%

✅ 1-distribution-metrics-100-times

Time: ✅ 165.179µs (SLO: <230.000µs 📉 -28.2%) vs baseline: +1.4%

Memory: ✅ 36.549MB (SLO: <38.000MB -3.8%) vs baseline: +5.8%

✅ 1-gauge-metric-1-times

Time: ✅ 2.000µs (SLO: <20.000µs 📉 -90.0%) vs baseline: +1.4%

Memory: ✅ 36.549MB (SLO: <38.000MB -3.8%) vs baseline: +5.9%

✅ 1-gauge-metrics-100-times

Time: ✅ 136.016µs (SLO: <150.000µs -9.3%) vs baseline: -0.9%

Memory: ✅ 36.707MB (SLO: <38.000MB -3.4%) vs baseline: +6.2%

✅ 1-rate-metric-1-times

Time: ✅ 2.245µs (SLO: <20.000µs 📉 -88.8%) vs baseline: -1.1%

Memory: ✅ 36.628MB (SLO: <38.000MB -3.6%) vs baseline: +6.2%

✅ 1-rate-metrics-100-times

Time: ✅ 166.952µs (SLO: <250.000µs 📉 -33.2%) vs baseline: -0.5%

Memory: ✅ 36.549MB (SLO: <38.000MB -3.8%) vs baseline: +5.9%

✅ 100-count-metrics-100-times

Time: ✅ 15.373ms (SLO: <22.000ms 📉 -30.1%) vs baseline: +1.2%

Memory: ✅ 36.294MB (SLO: <38.000MB -4.5%) vs baseline: +4.9%

✅ 100-distribution-metrics-100-times

Time: ✅ 1.766ms (SLO: <2.550ms 📉 -30.7%) vs baseline: +3.2%

Memory: ✅ 36.628MB (SLO: <38.000MB -3.6%) vs baseline: +6.2%

✅ 100-gauge-metrics-100-times

Time: ✅ 1.405ms (SLO: <1.550ms -9.4%) vs baseline: +0.2%

Memory: ✅ 36.196MB (SLO: <38.000MB -4.7%) vs baseline: +4.7%

✅ 100-rate-metrics-100-times

Time: ✅ 1.712ms (SLO: <2.550ms 📉 -32.9%) vs baseline: -0.8%

Memory: ✅ 36.215MB (SLO: <38.000MB -4.7%) vs baseline: +4.8%

✅ flush-1-metric

Time: ✅ 3.587µs (SLO: <20.000µs 📉 -82.1%) vs baseline: -3.1%

Memory: ✅ 36.490MB (SLO: <38.000MB -4.0%) vs baseline: +4.5%

✅ flush-100-metrics

Time: ✅ 176.582µs (SLO: <250.000µs 📉 -29.4%) vs baseline: -0.7%

Memory: ✅ 36.608MB (SLO: <38.000MB -3.7%) vs baseline: +5.0%

✅ flush-1000-metrics

Time: ✅ 2.202ms (SLO: <2.500ms 📉 -11.9%) vs baseline: -0.7%

Memory: ✅ 37.297MB (SLO: <38.750MB -3.8%) vs baseline: +4.6%

ℹ️ Scenarios Missing SLO Configuration (48 scenarios)

The following scenarios exist in candidate data but have no SLO thresholds configured:

coreapiscenario-core_dispatch_listeners
coreapiscenario-core_dispatch_no_listeners
coreapiscenario-core_dispatch_with_results_listeners
coreapiscenario-core_dispatch_with_results_no_listeners
djangosimple-baseline
errortrackingdjangosimple-baseline
errortrackingflasksqli-baseline
flasksimple-baseline
flasksqli-baseline
iast_aspects-re_expand_aspect
iast_aspects-re_expand_noaspect
iast_aspects-re_findall_aspect
iast_aspects-re_findall_noaspect
iast_aspects-re_finditer_aspect
iast_aspects-re_finditer_noaspect
iast_aspects-re_fullmatch_aspect
iast_aspects-re_fullmatch_noaspect
iast_aspects-re_group_aspect
iast_aspects-re_group_noaspect
iast_aspects-re_groups_aspect
iast_aspects-re_groups_noaspect
iast_aspects-re_match_aspect
iast_aspects-re_match_noaspect
iast_aspects-re_search_aspect
iast_aspects-re_search_noaspect
iast_aspects-re_sub_aspect
iast_aspects-re_sub_noaspect
iast_aspects-re_subn_aspect
iast_aspects-re_subn_noaspect
sethttpmeta-obfuscation-disabled
startup-baseline
startup-baseline_django
startup-baseline_flask
startup-ddtrace_run
startup-ddtrace_run_appsec
startup-ddtrace_run_profiling
startup-ddtrace_run_runtime_metrics
startup-ddtrace_run_send_span
startup-ddtrace_run_telemetry_disabled
startup-ddtrace_run_telemetry_enabled
startup-import_ddtrace
startup-import_ddtrace_auto
startup-import_ddtrace_auto_django
startup-import_ddtrace_auto_flask
startup-import_ddtrace_django
startup-import_ddtrace_flask
telemetrydependencies-first-50-deps-sca-off
telemetrydependencies-first-50-deps-sca-on

P403n1x87 · 2026-04-16T09:50:01Z

FYI I'm hoping we can get python/cpython#146182 merged before the 3.15 beta is cut so that we can move away from bytecode manipulations 🤞.

CPython 3.15 changed two bytecode operands in async/generator code paths: - YIELD_VALUE in SEND loops (await): 0 → 1 - RESUME after async gen yield-to-caller: 1 → 5 asyncs.py: new 3.15 branch with updated operands; ASYNC_HEAD and COROUTINE_ASSEMBLY structure identical to 3.14, ASYNC_GEN_ASSEMBLY yield_value updated in all three await loops (presend0/1/2) and resume updated in the yield-to-caller section. generators.py: new 3.15 branch identical to 3.14 — generator yields inside try blocks still use RESUME 1 in 3.15 (only unprotected yields changed to RESUME 5). context.py: extended 3.13 branch to cover 3.15 — no bytecode changes needed for context enter/exit/return assembly. All version guards bumped from >= (3,15) to >= (3,16). Validated on Python 3.15.0a7: coroutine, generator, async generator, and generator throw all pass.

The 3.13 INJECTION_ASSEMBLY (load_const/push_null/call/pop_top) is valid on 3.15 — no call convention changes were made. Bump the NotImplementedError guard from 3.15 to 3.16.

@lazy

…can't parse Python 3.15 code bytecode 0.17.0 (max Python 3.14) raises IndexError in Bytecode.from_code() on some Python 3.15 code objects. Catch it and return early rather than propagating to callers — e.g. @lazy in module.py and product plugin loading — which would log an ERROR to stderr and fail subprocess tests.

… context wrapping bytecode 0.17.0 does not know the stack effect of CLEANUP_THROW (new in 3.15 for async-generator throw handling), causing cfg.compute_stacksize() to raise RuntimeError. Fall back to an explicit stacksize when this happens on 3.15+.

…ing verified working

P403n1x87 · 2026-04-22T09:00:24Z

FYI I'm hoping we can get python/cpython#146182 merged before the 3.15 beta is cut so that we can move away from bytecode manipulations 🤞.

@vlad-scherbich The PR is merged so we can look into the sys.monitoring alternative implementation instead.

This was referenced Apr 15, 2026

feat(tracing): [1/n][NO_MERGE] support Python 3.15 coroutine and generator wrapping #17446

Closed

feat(profiling): [2/n][NO_MERGE] support Python 3.15 for profiling #17294

Closed

feat(profiling): [NO MERGE][2/n] support Python 3.15 for profiling #17532

Closed

vlad-scherbich changed the title ~~Vlad/ddtracepy 315 tracing wrapping~~ feat(tracing): [1/n] support Python 3.15 coroutine and generator wrapping #17446 Apr 15, 2026

vlad-scherbich force-pushed the vlad/ddtracepy-315-tracing-wrapping branch from aa07e99 to 06e9017 Compare April 15, 2026 21:30

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vlad-scherbich force-pushed the vlad/ddtracepy-315-tracing-wrapping branch from 4526b3b to 4d5a9de Compare April 17, 2026 01:06

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vlad-scherbich marked this pull request as ready for review April 17, 2026 12:22

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vlad-scherbich force-pushed the vlad/ddtracepy-315-tracing-wrapping branch from d379be4 to 8f689cf Compare April 20, 2026 01:41

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vlad-scherbich added 6 commits April 20, 2026 15:37

chore: add release note for Python 3.15 wrapping support

16963f2

fix(tracing): extend bytecode injection support to Python 3.15

bb6d13c

The 3.13 INJECTION_ASSEMBLY (load_const/push_null/call/pop_top) is valid on 3.15 — no call convention changes were made. Bump the NotImplementedError guard from 3.15 to 3.16.

feat(iast): enable IAST on Python 3.15 — taint tracking and AST patch…

4762316

…ing verified working

vlad-scherbich added 5 commits April 20, 2026 15:37

Pin 3.15 version to 3.15.0a7 in .python_version

6f498d5

shortened release note

aef327f

update comments

2f732f4

updated PY version gates

cc541b2

Reverted version change in docker/.python-version

4cada08

vlad-scherbich force-pushed the vlad/ddtracepy-315-tracing-wrapping branch from 8f689cf to 4cada08 Compare April 20, 2026 19:37

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vlad-scherbich mentioned this pull request Apr 20, 2026

chore(profiling): [2/n] support Python 3.15 for profiling (no free-threading) #17624

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remove release note

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Performance SLOs

✅ add_aspect

✅ add_inplace_aspect

✅ add_inplace_noaspect

✅ add_noaspect

✅ bytearray_aspect

✅ bytearray_extend_aspect

✅ bytearray_extend_noaspect

✅ bytearray_noaspect

✅ bytes_aspect

✅ bytes_noaspect

✅ bytesio_aspect

✅ bytesio_noaspect

✅ capitalize_aspect

✅ capitalize_noaspect

✅ casefold_aspect

✅ casefold_noaspect

✅ decode_aspect

✅ decode_noaspect

✅ encode_aspect

✅ encode_noaspect

✅ format_aspect

✅ format_map_aspect

✅ format_map_noaspect

✅ format_noaspect

✅ index_aspect

✅ index_noaspect

✅ join_aspect

✅ join_noaspect

✅ ljust_aspect

✅ ljust_noaspect

✅ lower_aspect

✅ lower_noaspect

✅ lstrip_aspect

✅ lstrip_noaspect

✅ modulo_aspect

✅ modulo_aspect_for_bytearray_bytearray

✅ modulo_aspect_for_bytes

✅ modulo_aspect_for_bytes_bytearray

✅ modulo_noaspect

✅ replace_aspect

✅ replace_noaspect

✅ repr_aspect

✅ repr_noaspect

✅ rstrip_aspect

✅ rstrip_noaspect

✅ slice_aspect

✅ slice_noaspect

✅ stringio_aspect

✅ stringio_noaspect

✅ strip_aspect

✅ strip_noaspect

✅ swapcase_aspect

✅ swapcase_noaspect

✅ title_aspect

✅ title_noaspect

✅ translate_aspect

✅ translate_noaspect

✅ upper_aspect

✅ upper_noaspect

✅ ospathbasename_aspect

✅ ospathbasename_noaspect

✅ ospathjoin_aspect

✅ ospathjoin_noaspect

vlad-scherbich commented Apr 15, 2026 •

edited

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cit-pr-commenter-54b7da Bot commented Apr 15, 2026 •

edited

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pr-commenter Bot commented Apr 15, 2026 •

edited

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