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perf(internal, profiling): native PeriodicThread avoids awake() after fork() (#16545) [backport 4.5]#16900

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perf(internal, profiling): native PeriodicThread avoids awake() after fork() (#16545) [backport 4.5]#16900
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@KowalskiThomas KowalskiThomas commented Mar 13, 2026

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Description

Backport of #16545 to 4.5.

@taegyunkim @KowalskiThomas
perf(internal, profiling): native PeriodicThread avoids awake() aft…
6cac384 
…er fork()

After #14163, we started to see a profiler behavior change in `dd-trace-doe` CI:
- `TestLanguage/python/flush/false` expected `0` profiles, got `3`. https://github.com/DataDog/dd-trace-doe/actions/runs/22102391228/job/63875669025

- During pre-fork, `PeriodicThread.stop()` sets the internal request event to wake the periodic threads promptly.
- After fork restart, that same request could be interpreted as a real wakeup, causing an immediate `periodic()` run.
- For profiling, that means an immediate `upload()` right after fork, which results in unexpected profile exports.

What this PR changfes:
- Distinguishes a fork-stop wakeup from a real `awake()` request in `PeriodicThread`
- Clears the request after fork only when it came from the pre-fork stop path.
- Preserves real `awake()` behavior across restart windows.

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Co-authored-by: taegyun.kim <[email protected]>
(cherry picked from commit 295a47f)
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ddtrace/internal/_threads.cpp                                           @DataDog/apm-core-python
tests/internal/test_periodic.py                                         @DataDog/apm-core-python
tests/profiling/collector/test_sample_count.py                          @DataDog/profiling-python
tests/profiling/gunicorn_count_app.py                                   @DataDog/profiling-python
tests/profiling/test_gunicorn.py                                        @DataDog/profiling-python

@KowalskiThomas KowalskiThomas added changelog/no-changelog A changelog entry is not required for this PR. Profiling Continous Profling labels Mar 13, 2026
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KowalskiThomas marked this pull request as ready for review March 13, 2026 12:55
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KowalskiThomas requested review from a team as code owners March 13, 2026 12:55
@KowalskiThomas KowalskiThomas changed the title perf(internal, profiling): native PeriodicThread avoids awake() after fork() (#16545) perf(internal, profiling): native PeriodicThread avoids awake() after fork() (#16545) [backport 4.5] Mar 13, 2026
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KowalskiThomas enabled auto-merge (squash) March 13, 2026 13:04
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Performance SLOs

Comparing candidate kowalski/backport-16545-to-4.5 (6cac384) with baseline 4.5 (c3478bd)

📈 Performance Regressions (2 suites)
📈 iastaspects - 118/118

✅ add_aspect

Time: ✅ 102.931µs (SLO: <130.000µs 📉 -20.8%) vs baseline: +2.8%

Memory: ✅ 42.880MB (SLO: <46.000MB -6.8%) vs baseline: +4.8%

✅ add_inplace_aspect

Time: ✅ 100.413µs (SLO: <130.000µs 📉 -22.8%) vs baseline: -0.8%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.8%

✅ add_inplace_noaspect

Time: ✅ 28.273µs (SLO: <40.000µs 📉 -29.3%) vs baseline: ~same

Memory: ✅ 42.900MB (SLO: <46.000MB -6.7%) vs baseline: +4.8%

✅ add_noaspect

Time: ✅ 48.810µs (SLO: <70.000µs 📉 -30.3%) vs baseline: +0.4%

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ bytearray_aspect

Time: ✅ 250.729µs (SLO: <400.000µs 📉 -37.3%) vs baseline: +0.3%

Memory: ✅ 42.959MB (SLO: <46.000MB -6.6%) vs baseline: +4.9%

✅ bytearray_extend_aspect

Time: ✅ 639.303µs (SLO: <800.000µs 📉 -20.1%) vs baseline: +0.4%

Memory: ✅ 42.880MB (SLO: <46.000MB -6.8%) vs baseline: +4.8%

✅ bytearray_extend_noaspect

Time: ✅ 263.766µs (SLO: <400.000µs 📉 -34.1%) vs baseline: +0.9%

Memory: ✅ 42.979MB (SLO: <46.000MB -6.6%) vs baseline: +5.0%

✅ bytearray_noaspect

Time: ✅ 134.382µs (SLO: <300.000µs 📉 -55.2%) vs baseline: -0.3%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ bytes_aspect

Time: ✅ 218.030µs (SLO: <300.000µs 📉 -27.3%) vs baseline: -0.3%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.8%

✅ bytes_noaspect

Time: ✅ 133.882µs (SLO: <200.000µs 📉 -33.1%) vs baseline: +0.5%

Memory: ✅ 42.880MB (SLO: <46.000MB -6.8%) vs baseline: +4.8%

✅ bytesio_aspect

Time: ✅ 3.792ms (SLO: <5.000ms 📉 -24.2%) vs baseline: +0.3%

Memory: ✅ 42.959MB (SLO: <46.000MB -6.6%) vs baseline: +5.0%

✅ bytesio_noaspect

Time: ✅ 317.508µs (SLO: <420.000µs 📉 -24.4%) vs baseline: +0.7%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ capitalize_aspect

Time: ✅ 89.326µs (SLO: <300.000µs 📉 -70.2%) vs baseline: ~same

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ capitalize_noaspect

Time: ✅ 250.970µs (SLO: <300.000µs 📉 -16.3%) vs baseline: +0.5%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +5.0%

✅ casefold_aspect

Time: ✅ 89.424µs (SLO: <500.000µs 📉 -82.1%) vs baseline: +0.2%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.7%

✅ casefold_noaspect

Time: ✅ 304.511µs (SLO: <500.000µs 📉 -39.1%) vs baseline: -1.4%

Memory: ✅ 42.900MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ decode_aspect

Time: ✅ 86.371µs (SLO: <100.000µs 📉 -13.6%) vs baseline: -0.3%

Memory: ✅ 42.880MB (SLO: <46.000MB -6.8%) vs baseline: +4.8%

✅ decode_noaspect

Time: ✅ 153.420µs (SLO: <210.000µs 📉 -26.9%) vs baseline: +0.2%

Memory: ✅ 42.880MB (SLO: <46.000MB -6.8%) vs baseline: +4.7%

✅ encode_aspect

Time: ✅ 84.553µs (SLO: <200.000µs 📉 -57.7%) vs baseline: +0.3%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.8%

✅ encode_noaspect

Time: ✅ 140.569µs (SLO: <200.000µs 📉 -29.7%) vs baseline: +1.1%

Memory: ✅ 42.900MB (SLO: <46.000MB -6.7%) vs baseline: +5.0%

✅ format_aspect

Time: ✅ 14.614ms (SLO: <19.200ms 📉 -23.9%) vs baseline: +0.1%

Memory: ✅ 42.979MB (SLO: <46.000MB -6.6%) vs baseline: +4.8%

✅ format_map_aspect

Time: ✅ 16.386ms (SLO: <21.500ms 📉 -23.8%) vs baseline: -0.2%

Memory: ✅ 43.057MB (SLO: <46.000MB -6.4%) vs baseline: +4.9%

✅ format_map_noaspect

Time: ✅ 371.087µs (SLO: <500.000µs 📉 -25.8%) vs baseline: +0.3%

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +5.0%

✅ format_noaspect

Time: ✅ 302.767µs (SLO: <500.000µs 📉 -39.4%) vs baseline: +0.3%

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +5.0%

✅ index_aspect

Time: ✅ 128.441µs (SLO: <300.000µs 📉 -57.2%) vs baseline: +5.5%

Memory: ✅ 42.979MB (SLO: <46.000MB -6.6%) vs baseline: +5.0%

✅ index_noaspect

Time: ✅ 40.429µs (SLO: <300.000µs 📉 -86.5%) vs baseline: +0.3%

Memory: ✅ 42.979MB (SLO: <46.000MB -6.6%) vs baseline: +5.0%

✅ join_aspect

Time: ✅ 210.147µs (SLO: <300.000µs 📉 -30.0%) vs baseline: +0.2%

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +5.0%

✅ join_noaspect

Time: ✅ 143.677µs (SLO: <300.000µs 📉 -52.1%) vs baseline: +1.2%

Memory: ✅ 42.900MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ ljust_aspect

Time: ✅ 581.818µs (SLO: <700.000µs 📉 -16.9%) vs baseline: 📈 +16.7%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.8%

✅ ljust_noaspect

Time: ✅ 258.014µs (SLO: <300.000µs 📉 -14.0%) vs baseline: -0.2%

Memory: ✅ 42.880MB (SLO: <46.000MB -6.8%) vs baseline: +4.7%

✅ lower_aspect

Time: ✅ 298.470µs (SLO: <500.000µs 📉 -40.3%) vs baseline: +0.9%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.8%

✅ lower_noaspect

Time: ✅ 234.071µs (SLO: <300.000µs 📉 -22.0%) vs baseline: -1.1%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.8%

✅ lstrip_aspect

Time: ✅ 0.271ms (SLO: <3.000ms 📉 -91.0%) vs baseline: ~same

Memory: ✅ 42.959MB (SLO: <46.000MB -6.6%) vs baseline: +4.9%

✅ lstrip_noaspect

Time: ✅ 0.179ms (SLO: <3.000ms 📉 -94.0%) vs baseline: +0.8%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ modulo_aspect

Time: ✅ 14.394ms (SLO: <18.750ms 📉 -23.2%) vs baseline: +0.7%

Memory: ✅ 42.959MB (SLO: <46.000MB -6.6%) vs baseline: +4.8%

✅ modulo_aspect_for_bytearray_bytearray

Time: ✅ 14.790ms (SLO: <19.350ms 📉 -23.6%) vs baseline: -1.2%

Memory: ✅ 42.959MB (SLO: <46.000MB -6.6%) vs baseline: +4.7%

✅ modulo_aspect_for_bytes

Time: ✅ 14.537ms (SLO: <18.900ms 📉 -23.1%) vs baseline: +1.3%

Memory: ✅ 43.096MB (SLO: <46.000MB -6.3%) vs baseline: +5.1%

✅ modulo_aspect_for_bytes_bytearray

Time: ✅ 14.566ms (SLO: <19.150ms 📉 -23.9%) vs baseline: -0.3%

Memory: ✅ 43.057MB (SLO: <46.000MB -6.4%) vs baseline: +5.0%

✅ modulo_noaspect

Time: ✅ 0.362ms (SLO: <3.000ms 📉 -87.9%) vs baseline: +1.0%

Memory: ✅ 42.861MB (SLO: <46.000MB -6.8%) vs baseline: +4.8%

✅ replace_aspect

Time: ✅ 18.396ms (SLO: <24.000ms 📉 -23.4%) vs baseline: -0.2%

Memory: ✅ 43.018MB (SLO: <46.000MB -6.5%) vs baseline: +4.7%

✅ replace_noaspect

Time: ✅ 281.287µs (SLO: <300.000µs -6.2%) vs baseline: +0.2%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ repr_aspect

Time: ✅ 314.462µs (SLO: <420.000µs 📉 -25.1%) vs baseline: +0.4%

Memory: ✅ 42.959MB (SLO: <46.000MB -6.6%) vs baseline: +4.9%

✅ repr_noaspect

Time: ✅ 46.689µs (SLO: <90.000µs 📉 -48.1%) vs baseline: -0.6%

Memory: ✅ 42.880MB (SLO: <46.000MB -6.8%) vs baseline: +4.8%

✅ rstrip_aspect

Time: ✅ 385.910µs (SLO: <500.000µs 📉 -22.8%) vs baseline: +2.0%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ rstrip_noaspect

Time: ✅ 184.956µs (SLO: <300.000µs 📉 -38.3%) vs baseline: +0.1%

Memory: ✅ 42.979MB (SLO: <46.000MB -6.6%) vs baseline: +5.1%

✅ slice_aspect

Time: ✅ 186.590µs (SLO: <300.000µs 📉 -37.8%) vs baseline: +0.4%

Memory: ✅ 42.841MB (SLO: <46.000MB -6.9%) vs baseline: +4.7%

✅ slice_noaspect

Time: ✅ 54.303µs (SLO: <90.000µs 📉 -39.7%) vs baseline: +0.5%

Memory: ✅ 43.018MB (SLO: <46.000MB -6.5%) vs baseline: +4.8%

✅ stringio_aspect

Time: ✅ 4.400ms (SLO: <5.000ms 📉 -12.0%) vs baseline: 📈 +15.1%

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +4.8%

✅ stringio_noaspect

Time: ✅ 346.585µs (SLO: <500.000µs 📉 -30.7%) vs baseline: +0.2%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ strip_aspect

Time: ✅ 269.946µs (SLO: <350.000µs 📉 -22.9%) vs baseline: +0.7%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ strip_noaspect

Time: ✅ 176.340µs (SLO: <240.000µs 📉 -26.5%) vs baseline: -0.2%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.8%

✅ swapcase_aspect

Time: ✅ 331.465µs (SLO: <500.000µs 📉 -33.7%) vs baseline: ~same

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.8%

✅ swapcase_noaspect

Time: ✅ 272.566µs (SLO: <400.000µs 📉 -31.9%) vs baseline: +0.7%

Memory: ✅ 42.979MB (SLO: <46.000MB -6.6%) vs baseline: +5.0%

✅ title_aspect

Time: ✅ 321.594µs (SLO: <500.000µs 📉 -35.7%) vs baseline: -0.4%

Memory: ✅ 42.880MB (SLO: <46.000MB -6.8%) vs baseline: +4.8%

✅ title_noaspect

Time: ✅ 257.482µs (SLO: <400.000µs 📉 -35.6%) vs baseline: -0.2%

Memory: ✅ 42.880MB (SLO: <46.000MB -6.8%) vs baseline: +4.8%

✅ translate_aspect

Time: ✅ 492.722µs (SLO: <700.000µs 📉 -29.6%) vs baseline: -0.2%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ translate_noaspect

Time: ✅ 421.117µs (SLO: <500.000µs 📉 -15.8%) vs baseline: -0.9%

Memory: ✅ 42.998MB (SLO: <46.000MB -6.5%) vs baseline: +5.1%

✅ upper_aspect

Time: ✅ 299.273µs (SLO: <500.000µs 📉 -40.1%) vs baseline: +0.8%

Memory: ✅ 42.861MB (SLO: <46.000MB -6.8%) vs baseline: +4.8%

✅ upper_noaspect

Time: ✅ 236.467µs (SLO: <400.000µs 📉 -40.9%) vs baseline: +0.6%

Memory: ✅ 42.900MB (SLO: <46.000MB -6.7%) vs baseline: +4.7%

📈 iastaspectsospath - 24/24

✅ ospathbasename_aspect

Time: ✅ 512.401µs (SLO: <700.000µs 📉 -26.8%) vs baseline: 📈 +21.1%

Memory: ✅ 42.979MB (SLO: <46.000MB -6.6%) vs baseline: +5.6%

✅ ospathbasename_noaspect

Time: ✅ 433.544µs (SLO: <700.000µs 📉 -38.1%) vs baseline: -0.6%

Memory: ✅ 42.900MB (SLO: <46.000MB -6.7%) vs baseline: +5.6%

✅ ospathjoin_aspect

Time: ✅ 627.724µs (SLO: <700.000µs 📉 -10.3%) vs baseline: ~same

Memory: ✅ 42.959MB (SLO: <46.000MB -6.6%) vs baseline: +5.4%

✅ ospathjoin_noaspect

Time: ✅ 634.309µs (SLO: <700.000µs -9.4%) vs baseline: ~same

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +5.1%

✅ ospathnormcase_aspect

Time: ✅ 350.094µs (SLO: <700.000µs 📉 -50.0%) vs baseline: -0.8%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +5.4%

✅ ospathnormcase_noaspect

Time: ✅ 358.568µs (SLO: <700.000µs 📉 -48.8%) vs baseline: +0.4%

Memory: ✅ 42.841MB (SLO: <46.000MB -6.9%) vs baseline: +5.2%

✅ ospathsplit_aspect

Time: ✅ 489.080µs (SLO: <700.000µs 📉 -30.1%) vs baseline: ~same

Memory: ✅ 42.900MB (SLO: <46.000MB -6.7%) vs baseline: +4.7%

✅ ospathsplit_noaspect

Time: ✅ 501.432µs (SLO: <700.000µs 📉 -28.4%) vs baseline: +0.3%

Memory: ✅ 42.821MB (SLO: <46.000MB -6.9%) vs baseline: +4.7%

✅ ospathsplitdrive_aspect

Time: ✅ 376.950µs (SLO: <700.000µs 📉 -46.1%) vs baseline: +0.1%

Memory: ✅ 42.644MB (SLO: <46.000MB -7.3%) vs baseline: +4.5%

✅ ospathsplitdrive_noaspect

Time: ✅ 73.254µs (SLO: <700.000µs 📉 -89.5%) vs baseline: +0.2%

Memory: ✅ 42.723MB (SLO: <46.000MB -7.1%) vs baseline: +5.2%

✅ ospathsplitext_aspect

Time: ✅ 459.761µs (SLO: <700.000µs 📉 -34.3%) vs baseline: ~same

Memory: ✅ 42.979MB (SLO: <46.000MB -6.6%) vs baseline: +5.6%

✅ ospathsplitext_noaspect

Time: ✅ 466.510µs (SLO: <700.000µs 📉 -33.4%) vs baseline: +0.4%

Memory: ✅ 42.880MB (SLO: <46.000MB -6.8%) vs baseline: +5.3%

🟡 Near SLO Breach (1 suite)
🟡 tracer - 6/6

✅ large

Time: ✅ 31.606ms (SLO: <32.950ms -4.1%) vs baseline: +0.2%

Memory: ✅ 36.746MB (SLO: <39.250MB -6.4%) vs baseline: +5.0%

✅ medium

Time: ✅ 3.107ms (SLO: <3.200ms -2.9%) vs baseline: -0.1%

Memory: ✅ 35.527MB (SLO: <38.750MB -8.3%) vs baseline: +5.1%

✅ small

Time: ✅ 363.906µs (SLO: <370.000µs 🟡 -1.6%) vs baseline: +4.4%

Memory: ✅ 35.488MB (SLO: <38.750MB -8.4%) vs baseline: +4.6%

⚠️ Unstable Tests (2 suites)
⚠️ coreapiscenario - 10/10 (1 unstable)

⚠️ context_with_data_listeners

Time: ⚠️ 13.235µs (SLO: <20.000µs 📉 -33.8%) vs baseline: -0.2%

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +5.0%

✅ context_with_data_no_listeners

Time: ✅ 3.265µs (SLO: <10.000µs 📉 -67.4%) vs baseline: -1.6%

Memory: ✅ 35.606MB (SLO: <38.000MB -6.3%) vs baseline: +5.0%

✅ get_item_exists

Time: ✅ 0.577µs (SLO: <10.000µs 📉 -94.2%) vs baseline: -0.8%

Memory: ✅ 35.606MB (SLO: <38.000MB -6.3%) vs baseline: +5.0%

✅ get_item_missing

Time: ✅ 0.635µs (SLO: <10.000µs 📉 -93.7%) vs baseline: +0.6%

Memory: ✅ 35.606MB (SLO: <38.000MB -6.3%) vs baseline: +5.0%

✅ set_item

Time: ✅ 24.049µs (SLO: <30.000µs 📉 -19.8%) vs baseline: +0.2%

Memory: ✅ 35.527MB (SLO: <38.000MB -6.5%) vs baseline: +4.6%

⚠️ packagesupdateimporteddependencies - 24/24 (1 unstable)

✅ import_many

Time: ✅ 154.603µs (SLO: <170.000µs -9.1%) vs baseline: -0.7%

Memory: ✅ 40.439MB (SLO: <46.000MB 📉 -12.1%) vs baseline: +4.8%

✅ import_many_cached

Time: ✅ 121.367µs (SLO: <130.000µs -6.6%) vs baseline: +0.3%

Memory: ✅ 40.336MB (SLO: <46.000MB 📉 -12.3%) vs baseline: +5.3%

✅ import_many_stdlib

Time: ✅ 0.766ms (SLO: <1.750ms 📉 -56.2%) vs baseline: ~same

Memory: ✅ 40.244MB (SLO: <46.000MB 📉 -12.5%) vs baseline: +5.1%

⚠️ import_many_stdlib_cached

Time: ⚠️ 0.175ms (SLO: <1.100ms 📉 -84.1%) vs baseline: +0.5%

Memory: ✅ 40.347MB (SLO: <46.000MB 📉 -12.3%) vs baseline: +5.2%

✅ import_many_unknown

Time: ✅ 832.794µs (SLO: <890.000µs -6.4%) vs baseline: +0.2%

Memory: ✅ 40.458MB (SLO: <46.000MB 📉 -12.0%) vs baseline: +5.1%

✅ import_many_unknown_cached

Time: ✅ 798.303µs (SLO: <870.000µs -8.2%) vs baseline: +0.4%

Memory: ✅ 40.444MB (SLO: <46.000MB 📉 -12.1%) vs baseline: +4.8%

✅ import_one

Time: ✅ 19.847µs (SLO: <30.000µs 📉 -33.8%) vs baseline: +0.7%

Memory: ✅ 40.265MB (SLO: <46.000MB 📉 -12.5%) vs baseline: +5.0%

✅ import_one_cache

Time: ✅ 6.337µs (SLO: <10.000µs 📉 -36.6%) vs baseline: +0.7%

Memory: ✅ 40.260MB (SLO: <46.000MB 📉 -12.5%) vs baseline: +5.0%

✅ import_one_stdlib

Time: ✅ 18.704µs (SLO: <20.000µs -6.5%) vs baseline: +0.7%

Memory: ✅ 40.164MB (SLO: <46.000MB 📉 -12.7%) vs baseline: +4.6%

✅ import_one_stdlib_cache

Time: ✅ 6.293µs (SLO: <10.000µs 📉 -37.1%) vs baseline: +0.5%

Memory: ✅ 40.472MB (SLO: <46.000MB 📉 -12.0%) vs baseline: +4.9%

✅ import_one_unknown

Time: ✅ 45.615µs (SLO: <50.000µs -8.8%) vs baseline: +0.3%

Memory: ✅ 40.325MB (SLO: <46.000MB 📉 -12.3%) vs baseline: +4.8%

✅ import_one_unknown_cache

Time: ✅ 6.294µs (SLO: <10.000µs 📉 -37.1%) vs baseline: +0.3%

Memory: ✅ 40.237MB (SLO: <43.000MB -6.4%) vs baseline: +4.4%

✅ All Tests Passing (19 suites)
✅ djangosimple - 27/27

✅ appsec

Time: ✅ 19.451ms (SLO: <22.300ms 📉 -12.8%) vs baseline: -0.1%

Memory: ✅ 67.594MB (SLO: <73.500MB -8.0%) vs baseline: +4.8%

✅ exception-replay-enabled

Time: ✅ 1.381ms (SLO: <1.450ms -4.8%) vs baseline: +0.3%

Memory: ✅ 65.746MB (SLO: <71.500MB -8.0%) vs baseline: +4.7%

✅ iast

Time: ✅ 19.586ms (SLO: <22.250ms 📉 -12.0%) vs baseline: ~same

Memory: ✅ 67.535MB (SLO: <75.000MB -10.0%) vs baseline: +4.8%

✅ profiler

Time: ✅ 15.267ms (SLO: <16.550ms -7.8%) vs baseline: ~same

Memory: ✅ 58.868MB (SLO: <61.000MB -3.5%) vs baseline: +4.8%

✅ resource-renaming

Time: ✅ 19.414ms (SLO: <21.750ms 📉 -10.7%) vs baseline: -0.2%

✅ span-code-origin

Time: ✅ 20.037ms (SLO: <28.200ms 📉 -28.9%) vs baseline: +1.3%

Memory: ✅ 67.633MB (SLO: <75.000MB -9.8%) vs baseline: +4.9%

✅ tracer

Time: ✅ 19.575ms (SLO: <21.750ms 📉 -10.0%) vs baseline: +0.3%

Memory: ✅ 67.574MB (SLO: <75.000MB -9.9%) vs baseline: +4.8%

✅ tracer-and-profiler

Time: ✅ 20.937ms (SLO: <23.500ms 📉 -10.9%) vs baseline: -0.4%

✅ tracer-dont-create-db-spans

Time: ✅ 19.660ms (SLO: <21.500ms -8.6%) vs baseline: ~same

Memory: ✅ 67.594MB (SLO: <75.000MB -9.9%) vs baseline: +4.8%

✅ tracer-minimal

Time: ✅ 16.862ms (SLO: <17.500ms -3.6%) vs baseline: +0.5%

Memory: ✅ 67.672MB (SLO: <75.000MB -9.8%) vs baseline: +5.0%

✅ tracer-native

Time: ✅ 19.351ms (SLO: <21.750ms 📉 -11.0%) vs baseline: -0.7%

Memory: ✅ 67.613MB (SLO: <72.500MB -6.7%) vs baseline: +4.9%

✅ tracer-no-caches

Time: ✅ 17.567ms (SLO: <19.650ms 📉 -10.6%) vs baseline: +0.3%

Memory: ✅ 67.574MB (SLO: <75.000MB -9.9%) vs baseline: +4.9%

✅ tracer-no-databases

Time: ✅ 19.219ms (SLO: <20.100ms -4.4%) vs baseline: +0.3%

Memory: ✅ 67.613MB (SLO: <75.000MB -9.8%) vs baseline: +4.9%

✅ tracer-no-middleware

Time: ✅ 19.248ms (SLO: <21.500ms 📉 -10.5%) vs baseline: ~same

✅ tracer-no-templates

Time: ✅ 19.560ms (SLO: <22.000ms 📉 -11.1%) vs baseline: +1.1%

Memory: ✅ 67.641MB (SLO: <73.500MB -8.0%) vs baseline: +5.0%

✅ errortrackingdjangosimple - 6/6

✅ errortracking-enabled-all

Time: ✅ 16.376ms (SLO: <19.850ms 📉 -17.5%) vs baseline: +0.5%

Memory: ✅ 67.241MB (SLO: <75.000MB 📉 -10.3%) vs baseline: +4.9%

✅ errortracking-enabled-user

Time: ✅ 16.333ms (SLO: <19.400ms 📉 -15.8%) vs baseline: -0.3%

Memory: ✅ 67.189MB (SLO: <75.000MB 📉 -10.4%) vs baseline: +4.8%

✅ tracer-enabled

Time: ✅ 16.311ms (SLO: <19.450ms 📉 -16.1%) vs baseline: ~same

Memory: ✅ 67.218MB (SLO: <75.000MB 📉 -10.4%) vs baseline: +4.9%

✅ errortrackingflasksqli - 6/6

✅ errortracking-enabled-all

Time: ✅ 2.102ms (SLO: <2.300ms -8.6%) vs baseline: ~same

Memory: ✅ 55.011MB (SLO: <60.000MB -8.3%) vs baseline: +5.1%

✅ errortracking-enabled-user

Time: ✅ 2.113ms (SLO: <2.250ms -6.1%) vs baseline: +0.1%

Memory: ✅ 54.991MB (SLO: <60.000MB -8.3%) vs baseline: +4.9%

✅ tracer-enabled

Time: ✅ 2.100ms (SLO: <2.300ms -8.7%) vs baseline: ~same

Memory: ✅ 54.952MB (SLO: <60.000MB -8.4%) vs baseline: +4.7%

✅ flasksimple - 18/18

✅ appsec-get

Time: ✅ 3.407ms (SLO: <4.750ms 📉 -28.3%) vs baseline: -0.6%

Memory: ✅ 54.670MB (SLO: <66.500MB 📉 -17.8%) vs baseline: +4.7%

✅ appsec-post

Time: ✅ 2.901ms (SLO: <6.750ms 📉 -57.0%) vs baseline: ~same

Memory: ✅ 55.005MB (SLO: <66.500MB 📉 -17.3%) vs baseline: +4.7%

✅ appsec-telemetry

Time: ✅ 3.440ms (SLO: <4.750ms 📉 -27.6%) vs baseline: +0.8%

Memory: ✅ 54.831MB (SLO: <66.500MB 📉 -17.5%) vs baseline: +4.9%

✅ debugger

Time: ✅ 1.868ms (SLO: <2.000ms -6.6%) vs baseline: +0.2%

Memory: ✅ 48.422MB (SLO: <51.500MB -6.0%) vs baseline: +4.9%

✅ iast-get

Time: ✅ 1.856ms (SLO: <2.000ms -7.2%) vs baseline: -0.2%

Memory: ✅ 45.277MB (SLO: <49.000MB -7.6%) vs baseline: +4.8%

✅ profiler

Time: ✅ 1.907ms (SLO: <2.100ms -9.2%) vs baseline: ~same

Memory: ✅ 51.293MB (SLO: <52.500MB -2.3%) vs baseline: +4.9%

✅ resource-renaming

Time: ✅ 3.398ms (SLO: <3.650ms -6.9%) vs baseline: ~same

Memory: ✅ 54.635MB (SLO: <60.000MB -8.9%) vs baseline: +4.6%

✅ tracer

Time: ✅ 3.417ms (SLO: <3.650ms -6.4%) vs baseline: -0.2%

Memory: ✅ 54.694MB (SLO: <60.000MB -8.8%) vs baseline: +4.7%

✅ tracer-native

Time: ✅ 3.419ms (SLO: <3.650ms -6.3%) vs baseline: +0.3%

Memory: ✅ 54.729MB (SLO: <60.000MB -8.8%) vs baseline: +4.7%

✅ flasksqli - 6/6

✅ appsec-enabled

Time: ✅ 2.094ms (SLO: <4.200ms 📉 -50.1%) vs baseline: -0.5%

Memory: ✅ 55.011MB (SLO: <66.000MB 📉 -16.7%) vs baseline: +4.9%

✅ iast-enabled

Time: ✅ 2.106ms (SLO: <2.800ms 📉 -24.8%) vs baseline: +0.1%

Memory: ✅ 54.952MB (SLO: <62.500MB 📉 -12.1%) vs baseline: +4.8%

✅ tracer-enabled

Time: ✅ 2.093ms (SLO: <2.250ms -7.0%) vs baseline: +0.1%

Memory: ✅ 54.972MB (SLO: <60.000MB -8.4%) vs baseline: +4.9%

✅ forktime - 4/4

✅ baseline

Time: ✅ 1.971ms (SLO: <3.000ms 📉 -34.3%) vs baseline: +4.3%

Memory: ✅ 29.334MB (SLO: <33.000MB 📉 -11.1%) vs baseline: +4.9%

✅ configured

Time: ✅ 8.489ms (SLO: <13.000ms 📉 -34.7%) vs baseline: -0.7%

Memory: ✅ 54.997MB (SLO: <60.000MB -8.3%) vs baseline: +4.9%

✅ httppropagationextract - 60/60

✅ all_styles_all_headers

Time: ✅ 79.625µs (SLO: <100.000µs 📉 -20.4%) vs baseline: +5.0%

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +4.7%

✅ b3_headers

Time: ✅ 12.787µs (SLO: <20.000µs 📉 -36.1%) vs baseline: -0.5%

Memory: ✅ 35.606MB (SLO: <38.000MB -6.3%) vs baseline: +5.0%

✅ b3_single_headers

Time: ✅ 11.805µs (SLO: <20.000µs 📉 -41.0%) vs baseline: -0.2%

Memory: ✅ 35.665MB (SLO: <38.000MB -6.1%) vs baseline: +5.1%

✅ datadog_tracecontext_tracestate_not_propagated_on_trace_id_no_match

Time: ✅ 60.775µs (SLO: <80.000µs 📉 -24.0%) vs baseline: ~same

Memory: ✅ 35.625MB (SLO: <38.000MB -6.2%) vs baseline: +4.9%

✅ datadog_tracecontext_tracestate_propagated_on_trace_id_match

Time: ✅ 62.598µs (SLO: <80.000µs 📉 -21.8%) vs baseline: -0.2%

Memory: ✅ 35.606MB (SLO: <38.000MB -6.3%) vs baseline: +4.9%

✅ empty_headers

Time: ✅ 1.305µs (SLO: <10.000µs 📉 -86.9%) vs baseline: -0.1%

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +4.7%

✅ full_t_id_datadog_headers

Time: ✅ 20.900µs (SLO: <30.000µs 📉 -30.3%) vs baseline: ~same

Memory: ✅ 35.684MB (SLO: <38.000MB -6.1%) vs baseline: +5.1%

✅ invalid_priority_header

Time: ✅ 5.959µs (SLO: <10.000µs 📉 -40.4%) vs baseline: ~same

Memory: ✅ 35.645MB (SLO: <38.000MB -6.2%) vs baseline: +5.0%

✅ invalid_span_id_header

Time: ✅ 5.970µs (SLO: <10.000µs 📉 -40.3%) vs baseline: +0.6%

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +4.6%

✅ invalid_tags_header

Time: ✅ 5.996µs (SLO: <10.000µs 📉 -40.0%) vs baseline: +1.0%

Memory: ✅ 35.625MB (SLO: <38.000MB -6.2%) vs baseline: +4.7%

✅ invalid_trace_id_header

Time: ✅ 5.914µs (SLO: <10.000µs 📉 -40.9%) vs baseline: -0.1%

Memory: ✅ 35.665MB (SLO: <38.000MB -6.1%) vs baseline: +4.9%

✅ large_header_no_matches

Time: ✅ 26.953µs (SLO: <30.000µs 📉 -10.2%) vs baseline: -0.5%

Memory: ✅ 35.665MB (SLO: <38.000MB -6.1%) vs baseline: +5.0%

✅ large_valid_headers_all

Time: ✅ 28.047µs (SLO: <40.000µs 📉 -29.9%) vs baseline: -0.2%

Memory: ✅ 35.684MB (SLO: <38.000MB -6.1%) vs baseline: +5.2%

✅ medium_header_no_matches

Time: ✅ 9.276µs (SLO: <20.000µs 📉 -53.6%) vs baseline: -0.4%

Memory: ✅ 35.625MB (SLO: <38.000MB -6.2%) vs baseline: +4.8%

✅ medium_valid_headers_all

Time: ✅ 10.709µs (SLO: <20.000µs 📉 -46.5%) vs baseline: +0.2%

Memory: ✅ 35.724MB (SLO: <38.000MB -6.0%) vs baseline: +4.5%

✅ none_propagation_style

Time: ✅ 1.405µs (SLO: <10.000µs 📉 -86.0%) vs baseline: -0.9%

Memory: ✅ 35.586MB (SLO: <38.000MB -6.4%) vs baseline: +4.8%

✅ tracecontext_headers

Time: ✅ 32.659µs (SLO: <40.000µs 📉 -18.4%) vs baseline: ~same

Memory: ✅ 35.665MB (SLO: <38.000MB -6.1%) vs baseline: +5.0%

✅ valid_headers_all

Time: ✅ 5.931µs (SLO: <10.000µs 📉 -40.7%) vs baseline: -0.3%

Memory: ✅ 35.665MB (SLO: <38.000MB -6.1%) vs baseline: +4.7%

✅ valid_headers_basic

Time: ✅ 5.525µs (SLO: <10.000µs 📉 -44.7%) vs baseline: +0.5%

Memory: ✅ 35.645MB (SLO: <38.000MB -6.2%) vs baseline: +4.9%

✅ wsgi_empty_headers

Time: ✅ 1.303µs (SLO: <10.000µs 📉 -87.0%) vs baseline: -1.3%

Memory: ✅ 35.704MB (SLO: <38.000MB -6.0%) vs baseline: +5.0%

✅ wsgi_invalid_priority_header

Time: ✅ 5.989µs (SLO: <10.000µs 📉 -40.1%) vs baseline: ~same

Memory: ✅ 35.606MB (SLO: <38.000MB -6.3%) vs baseline: +4.9%

✅ wsgi_invalid_span_id_header

Time: ✅ 1.309µs (SLO: <10.000µs 📉 -86.9%) vs baseline: -0.2%

Memory: ✅ 35.606MB (SLO: <38.000MB -6.3%) vs baseline: +4.7%

✅ wsgi_invalid_tags_header

Time: ✅ 5.957µs (SLO: <10.000µs 📉 -40.4%) vs baseline: -0.6%

Memory: ✅ 35.625MB (SLO: <38.000MB -6.2%) vs baseline: +4.9%

✅ wsgi_invalid_trace_id_header

Time: ✅ 5.955µs (SLO: <10.000µs 📉 -40.5%) vs baseline: +0.6%

Memory: ✅ 35.704MB (SLO: <38.000MB -6.0%) vs baseline: +5.1%

✅ wsgi_large_header_no_matches

Time: ✅ 27.950µs (SLO: <40.000µs 📉 -30.1%) vs baseline: -0.5%

Memory: ✅ 35.586MB (SLO: <38.000MB -6.4%) vs baseline: +4.6%

✅ wsgi_large_valid_headers_all

Time: ✅ 29.162µs (SLO: <40.000µs 📉 -27.1%) vs baseline: -0.2%

Memory: ✅ 35.704MB (SLO: <38.000MB -6.0%) vs baseline: +5.3%

✅ wsgi_medium_header_no_matches

Time: ✅ 9.466µs (SLO: <20.000µs 📉 -52.7%) vs baseline: -0.4%

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +4.4%

✅ wsgi_medium_valid_headers_all

Time: ✅ 11.122µs (SLO: <20.000µs 📉 -44.4%) vs baseline: +1.7%

Memory: ✅ 35.645MB (SLO: <38.000MB -6.2%) vs baseline: +4.8%

✅ wsgi_valid_headers_all

Time: ✅ 5.982µs (SLO: <10.000µs 📉 -40.2%) vs baseline: +0.4%

Memory: ✅ 35.645MB (SLO: <38.000MB -6.2%) vs baseline: +5.0%

✅ wsgi_valid_headers_basic

Time: ✅ 5.522µs (SLO: <10.000µs 📉 -44.8%) vs baseline: ~same

Memory: ✅ 35.586MB (SLO: <38.000MB -6.4%) vs baseline: +4.7%

✅ httppropagationinject - 16/16

✅ ids_only

Time: ✅ 20.434µs (SLO: <30.000µs 📉 -31.9%) vs baseline: +4.4%

Memory: ✅ 35.704MB (SLO: <38.000MB -6.0%) vs baseline: +5.1%

✅ with_all

Time: ✅ 26.401µs (SLO: <40.000µs 📉 -34.0%) vs baseline: +0.2%

Memory: ✅ 35.625MB (SLO: <38.000MB -6.2%) vs baseline: +4.9%

✅ with_dd_origin

Time: ✅ 23.410µs (SLO: <30.000µs 📉 -22.0%) vs baseline: +0.4%

Memory: ✅ 35.665MB (SLO: <38.000MB -6.1%) vs baseline: +4.9%

✅ with_priority_and_origin

Time: ✅ 22.710µs (SLO: <40.000µs 📉 -43.2%) vs baseline: ~same

Memory: ✅ 35.625MB (SLO: <38.000MB -6.2%) vs baseline: +5.0%

✅ with_sampling_priority

Time: ✅ 19.626µs (SLO: <30.000µs 📉 -34.6%) vs baseline: ~same

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +4.7%

✅ with_tags

Time: ✅ 24.494µs (SLO: <40.000µs 📉 -38.8%) vs baseline: +0.3%

Memory: ✅ 35.586MB (SLO: <38.000MB -6.4%) vs baseline: +4.8%

✅ with_tags_invalid

Time: ✅ 25.833µs (SLO: <40.000µs 📉 -35.4%) vs baseline: -0.1%

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +4.6%

✅ with_tags_max_size

Time: ✅ 24.894µs (SLO: <40.000µs 📉 -37.8%) vs baseline: ~same

Memory: ✅ 35.645MB (SLO: <38.000MB -6.2%) vs baseline: +4.7%

✅ iastaspectssplit - 12/12

✅ rsplit_aspect

Time: ✅ 153.371µs (SLO: <250.000µs 📉 -38.7%) vs baseline: +1.7%

Memory: ✅ 42.959MB (SLO: <46.000MB -6.6%) vs baseline: +4.9%

✅ rsplit_noaspect

Time: ✅ 157.872µs (SLO: <250.000µs 📉 -36.9%) vs baseline: +1.1%

Memory: ✅ 42.546MB (SLO: <46.000MB -7.5%) vs baseline: +4.6%

✅ split_aspect

Time: ✅ 149.593µs (SLO: <250.000µs 📉 -40.2%) vs baseline: +0.2%

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +4.9%

✅ split_noaspect

Time: ✅ 153.299µs (SLO: <250.000µs 📉 -38.7%) vs baseline: -0.8%

Memory: ✅ 42.507MB (SLO: <46.000MB -7.6%) vs baseline: +4.7%

✅ splitlines_aspect

Time: ✅ 146.225µs (SLO: <250.000µs 📉 -41.5%) vs baseline: +0.5%

Memory: ✅ 42.841MB (SLO: <46.000MB -6.9%) vs baseline: +4.8%

✅ splitlines_noaspect

Time: ✅ 148.911µs (SLO: <250.000µs 📉 -40.4%) vs baseline: -1.5%

Memory: ✅ 42.861MB (SLO: <46.000MB -6.8%) vs baseline: +5.4%

✅ iastpropagation - 8/8

✅ no-propagation

Time: ✅ 48.098µs (SLO: <60.000µs 📉 -19.8%) vs baseline: -0.4%

Memory: ✅ 39.046MB (SLO: <42.000MB -7.0%) vs baseline: +5.0%

✅ propagation_enabled

Time: ✅ 134.822µs (SLO: <190.000µs 📉 -29.0%) vs baseline: -0.9%

Memory: ✅ 38.928MB (SLO: <42.000MB -7.3%) vs baseline: +4.5%

✅ propagation_enabled_100

Time: ✅ 1.572ms (SLO: <2.300ms 📉 -31.6%) vs baseline: +1.2%

Memory: ✅ 39.007MB (SLO: <42.000MB -7.1%) vs baseline: +5.1%

✅ propagation_enabled_1000

Time: ✅ 29.019ms (SLO: <34.550ms 📉 -16.0%) vs baseline: -0.6%

Memory: ✅ 38.987MB (SLO: <42.000MB -7.2%) vs baseline: +4.8%

✅ otelsdkspan - 24/24

✅ add-event

Time: ✅ 40.369ms (SLO: <42.000ms -3.9%) vs baseline: +0.6%

Memory: ✅ 38.004MB (SLO: <40.750MB -6.7%) vs baseline: +5.0%

✅ add-link

Time: ✅ 36.370ms (SLO: <38.550ms -5.7%) vs baseline: ~same

Memory: ✅ 37.926MB (SLO: <40.750MB -6.9%) vs baseline: +5.2%

✅ add-metrics

Time: ✅ 218.703ms (SLO: <232.000ms -5.7%) vs baseline: -0.3%

Memory: ✅ 38.044MB (SLO: <40.750MB -6.6%) vs baseline: +5.0%

✅ add-tags

Time: ✅ 210.478ms (SLO: <221.600ms -5.0%) vs baseline: -0.9%

Memory: ✅ 38.024MB (SLO: <40.750MB -6.7%) vs baseline: +5.1%

✅ get-context

Time: ✅ 29.041ms (SLO: <31.300ms -7.2%) vs baseline: +0.6%

Memory: ✅ 38.142MB (SLO: <40.750MB -6.4%) vs baseline: +5.1%

✅ is-recording

Time: ✅ 29.050ms (SLO: <31.000ms -6.3%) vs baseline: +0.2%

Memory: ✅ 38.044MB (SLO: <40.750MB -6.6%) vs baseline: +5.0%

✅ record-exception

Time: ✅ 63.028ms (SLO: <65.850ms -4.3%) vs baseline: +0.3%

Memory: ✅ 37.945MB (SLO: <40.750MB -6.9%) vs baseline: +5.0%

✅ set-status

Time: ✅ 31.862ms (SLO: <34.150ms -6.7%) vs baseline: +0.3%

Memory: ✅ 38.083MB (SLO: <40.750MB -6.5%) vs baseline: +4.9%

✅ start

Time: ✅ 29.358ms (SLO: <30.150ms -2.6%) vs baseline: +1.8%

Memory: ✅ 38.024MB (SLO: <40.750MB -6.7%) vs baseline: +4.9%

✅ start-finish

Time: ✅ 33.998ms (SLO: <35.350ms -3.8%) vs baseline: +0.3%

Memory: ✅ 38.024MB (SLO: <40.750MB -6.7%) vs baseline: +4.6%

✅ start-finish-telemetry

Time: ✅ 33.868ms (SLO: <35.450ms -4.5%) vs baseline: -0.4%

Memory: ✅ 37.827MB (SLO: <40.750MB -7.2%) vs baseline: +4.2%

✅ update-name

Time: ✅ 30.978ms (SLO: <33.400ms -7.3%) vs baseline: -0.3%

Memory: ✅ 38.201MB (SLO: <40.750MB -6.3%) vs baseline: +5.3%

✅ otelspan - 22/22

✅ add-event

Time: ✅ 41.102ms (SLO: <47.150ms 📉 -12.8%) vs baseline: -0.1%

Memory: ✅ 40.489MB (SLO: <47.000MB 📉 -13.9%) vs baseline: +4.9%

✅ add-metrics

Time: ✅ 251.882ms (SLO: <344.800ms 📉 -26.9%) vs baseline: +0.2%

Memory: ✅ 44.933MB (SLO: <47.500MB -5.4%) vs baseline: +4.9%

✅ add-tags

Time: ✅ 306.227ms (SLO: <330.000ms -7.2%) vs baseline: -0.7%

Memory: ✅ 44.904MB (SLO: <47.500MB -5.5%) vs baseline: +4.9%

✅ get-context

Time: ✅ 81.284ms (SLO: <92.350ms 📉 -12.0%) vs baseline: ~same

Memory: ✅ 40.791MB (SLO: <46.500MB 📉 -12.3%) vs baseline: +4.6%

✅ is-recording

Time: ✅ 37.199ms (SLO: <44.500ms 📉 -16.4%) vs baseline: -0.3%

Memory: ✅ 40.415MB (SLO: <47.500MB 📉 -14.9%) vs baseline: +4.9%

✅ record-exception

Time: ✅ 60.074ms (SLO: <67.650ms 📉 -11.2%) vs baseline: +0.2%

Memory: ✅ 40.933MB (SLO: <47.000MB 📉 -12.9%) vs baseline: +4.9%

✅ set-status

Time: ✅ 44.043ms (SLO: <50.400ms 📉 -12.6%) vs baseline: +0.6%

Memory: ✅ 40.326MB (SLO: <47.000MB 📉 -14.2%) vs baseline: +4.7%

✅ start

Time: ✅ 38.053ms (SLO: <43.450ms 📉 -12.4%) vs baseline: +3.8%

Memory: ✅ 40.389MB (SLO: <47.000MB 📉 -14.1%) vs baseline: +4.6%

✅ start-finish

Time: ✅ 85.816ms (SLO: <90.000ms -4.6%) vs baseline: +0.4%

Memory: ✅ 38.201MB (SLO: <46.500MB 📉 -17.8%) vs baseline: +5.1%

✅ start-finish-telemetry

Time: ✅ 87.027ms (SLO: <91.000ms -4.4%) vs baseline: ~same

Memory: ✅ 38.181MB (SLO: <46.500MB 📉 -17.9%) vs baseline: +5.2%

✅ update-name

Time: ✅ 38.171ms (SLO: <45.150ms 📉 -15.5%) vs baseline: -0.4%

Memory: ✅ 40.433MB (SLO: <47.000MB 📉 -14.0%) vs baseline: +4.7%

✅ packagespackageforrootmodulemapping - 4/4

✅ cache_off

Time: ✅ 344.957ms (SLO: <354.300ms -2.6%) vs baseline: -0.1%

Memory: ✅ 40.941MB (SLO: <46.000MB 📉 -11.0%) vs baseline: +3.4%

✅ cache_on

Time: ✅ 0.386µs (SLO: <10.000µs 📉 -96.1%) vs baseline: +1.1%

Memory: ✅ 39.419MB (SLO: <46.000MB 📉 -14.3%) vs baseline: +5.3%

✅ ratelimiter - 12/12

✅ defaults

Time: ✅ 2.346µs (SLO: <10.000µs 📉 -76.5%) vs baseline: -0.4%

Memory: ✅ 35.547MB (SLO: <38.000MB -6.5%) vs baseline: +4.9%

✅ high_rate_limit

Time: ✅ 2.408µs (SLO: <10.000µs 📉 -75.9%) vs baseline: ~same

Memory: ✅ 35.606MB (SLO: <38.000MB -6.3%) vs baseline: +5.0%

✅ long_window

Time: ✅ 2.354µs (SLO: <10.000µs 📉 -76.5%) vs baseline: -0.4%

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +4.7%

✅ low_rate_limit

Time: ✅ 2.375µs (SLO: <10.000µs 📉 -76.3%) vs baseline: +0.4%

Memory: ✅ 35.606MB (SLO: <38.000MB -6.3%) vs baseline: +5.0%

✅ no_rate_limit

Time: ✅ 0.841µs (SLO: <10.000µs 📉 -91.6%) vs baseline: +1.0%

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +4.7%

✅ short_window

Time: ✅ 2.496µs (SLO: <10.000µs 📉 -75.0%) vs baseline: +0.2%

Memory: ✅ 35.527MB (SLO: <38.000MB -6.5%) vs baseline: +4.4%

✅ recursivecomputation - 8/8

✅ deep

Time: ✅ 310.045ms (SLO: <320.950ms -3.4%) vs baseline: ~same

Memory: ✅ 36.274MB (SLO: <38.750MB -6.4%) vs baseline: +4.8%

✅ deep-profiled

Time: ✅ 329.974ms (SLO: <359.150ms -8.1%) vs baseline: ~same

Memory: ✅ 42.271MB (SLO: <46.000MB -8.1%) vs baseline: +4.8%

✅ medium

Time: ✅ 7.107ms (SLO: <7.400ms -4.0%) vs baseline: -0.4%

Memory: ✅ 35.606MB (SLO: <38.000MB -6.3%) vs baseline: +5.1%

✅ shallow

Time: ✅ 0.981ms (SLO: <1.050ms -6.6%) vs baseline: +1.4%

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +4.9%

✅ samplingrules - 8/8

✅ average_match

Time: ✅ 146.622µs (SLO: <290.000µs 📉 -49.4%) vs baseline: -0.7%

Memory: ✅ 35.665MB (SLO: <38.000MB -6.1%) vs baseline: +4.9%

✅ high_match

Time: ✅ 192.092µs (SLO: <480.000µs 📉 -60.0%) vs baseline: -0.8%

Memory: ✅ 35.665MB (SLO: <38.000MB -6.1%) vs baseline: +5.0%

✅ low_match

Time: ✅ 99.511µs (SLO: <120.000µs 📉 -17.1%) vs baseline: +0.3%

Memory: ✅ 707.068MB (SLO: <780.000MB -9.4%) vs baseline: +4.9%

✅ very_low_match

Time: ✅ 2.856ms (SLO: <8.500ms 📉 -66.4%) vs baseline: -0.7%

Memory: ✅ 78.318MB (SLO: <85.000MB -7.9%) vs baseline: +4.8%

✅ sethttpmeta - 32/32

✅ all-disabled

Time: ✅ 10.444µs (SLO: <20.000µs 📉 -47.8%) vs baseline: -0.3%

Memory: ✅ 36.019MB (SLO: <38.750MB -7.0%) vs baseline: +4.6%

✅ all-enabled

Time: ✅ 40.920µs (SLO: <50.000µs 📉 -18.2%) vs baseline: +2.0%

Memory: ✅ 36.058MB (SLO: <38.750MB -6.9%) vs baseline: +4.7%

✅ collectipvariant_exists

Time: ✅ 40.668µs (SLO: <50.000µs 📉 -18.7%) vs baseline: -0.3%

Memory: ✅ 35.940MB (SLO: <38.750MB -7.3%) vs baseline: +5.1%

✅ no-collectipvariant

Time: ✅ 39.905µs (SLO: <50.000µs 📉 -20.2%) vs baseline: -0.4%

Memory: ✅ 35.960MB (SLO: <38.750MB -7.2%) vs baseline: +4.2%

✅ no-useragentvariant

Time: ✅ 38.713µs (SLO: <50.000µs 📉 -22.6%) vs baseline: -0.3%

Memory: ✅ 35.999MB (SLO: <38.750MB -7.1%) vs baseline: +4.7%

✅ obfuscation-no-query

Time: ✅ 40.442µs (SLO: <50.000µs 📉 -19.1%) vs baseline: ~same

Memory: ✅ 35.979MB (SLO: <38.750MB -7.2%) vs baseline: +4.8%

✅ obfuscation-regular-case-explicit-query

Time: ✅ 76.230µs (SLO: <90.000µs 📉 -15.3%) vs baseline: -0.3%

Memory: ✅ 36.353MB (SLO: <38.750MB -6.2%) vs baseline: +4.9%

✅ obfuscation-regular-case-implicit-query

Time: ✅ 76.808µs (SLO: <90.000µs 📉 -14.7%) vs baseline: -0.2%

Memory: ✅ 36.412MB (SLO: <38.750MB -6.0%) vs baseline: +5.1%

✅ obfuscation-send-querystring-disabled

Time: ✅ 155.093µs (SLO: <170.000µs -8.8%) vs baseline: -0.1%

Memory: ✅ 36.294MB (SLO: <38.750MB -6.3%) vs baseline: +4.3%

✅ obfuscation-worst-case-explicit-query

Time: ✅ 149.369µs (SLO: <160.000µs -6.6%) vs baseline: -0.2%

Memory: ✅ 36.274MB (SLO: <38.750MB -6.4%) vs baseline: +4.5%

✅ obfuscation-worst-case-implicit-query

Time: ✅ 155.985µs (SLO: <170.000µs -8.2%) vs baseline: +0.1%

Memory: ✅ 36.353MB (SLO: <38.750MB -6.2%) vs baseline: +4.6%

✅ useragentvariant_exists_1

Time: ✅ 39.314µs (SLO: <50.000µs 📉 -21.4%) vs baseline: -0.4%

Memory: ✅ 35.979MB (SLO: <38.750MB -7.2%) vs baseline: +4.5%

✅ useragentvariant_exists_2

Time: ✅ 40.571µs (SLO: <50.000µs 📉 -18.9%) vs baseline: -0.2%

Memory: ✅ 36.078MB (SLO: <38.750MB -6.9%) vs baseline: +5.0%

✅ useragentvariant_exists_3

Time: ✅ 40.039µs (SLO: <50.000µs 📉 -19.9%) vs baseline: -0.5%

Memory: ✅ 35.960MB (SLO: <38.750MB -7.2%) vs baseline: +4.7%

✅ useragentvariant_not_exists_1

Time: ✅ 39.423µs (SLO: <50.000µs 📉 -21.2%) vs baseline: +0.2%

Memory: ✅ 35.842MB (SLO: <38.750MB -7.5%) vs baseline: +4.4%

✅ useragentvariant_not_exists_2

Time: ✅ 39.442µs (SLO: <50.000µs 📉 -21.1%) vs baseline: ~same

Memory: ✅ 36.097MB (SLO: <38.750MB -6.8%) vs baseline: +4.9%

✅ span - 26/26

✅ add-event

Time: ✅ 18.697ms (SLO: <22.500ms 📉 -16.9%) vs baseline: ~same

Memory: ✅ 37.690MB (SLO: <53.000MB 📉 -28.9%) vs baseline: +5.0%

✅ add-metrics

Time: ✅ 88.599ms (SLO: <93.500ms -5.2%) vs baseline: -0.3%

Memory: ✅ 42.251MB (SLO: <53.000MB 📉 -20.3%) vs baseline: +5.1%

✅ add-tags

Time: ✅ 144.661ms (SLO: <155.000ms -6.7%) vs baseline: +0.2%

Memory: ✅ 41.965MB (SLO: <53.000MB 📉 -20.8%) vs baseline: +4.6%

✅ get-context

Time: ✅ 17.103ms (SLO: <20.500ms 📉 -16.6%) vs baseline: -0.2%

Memory: ✅ 37.552MB (SLO: <53.000MB 📉 -29.1%) vs baseline: +5.0%

✅ is-recording

Time: ✅ 17.247ms (SLO: <20.500ms 📉 -15.9%) vs baseline: -0.5%

Memory: ✅ 37.454MB (SLO: <53.000MB 📉 -29.3%) vs baseline: +4.5%

✅ record-exception

Time: ✅ 38.080ms (SLO: <41.000ms -7.1%) vs baseline: +0.4%

Memory: ✅ 38.101MB (SLO: <53.000MB 📉 -28.1%) vs baseline: +4.7%

✅ set-status

Time: ✅ 18.843ms (SLO: <22.000ms 📉 -14.4%) vs baseline: -0.5%

Memory: ✅ 37.513MB (SLO: <53.000MB 📉 -29.2%) vs baseline: +4.8%

✅ start

Time: ✅ 17.953ms (SLO: <20.500ms 📉 -12.4%) vs baseline: +4.9%

Memory: ✅ 37.532MB (SLO: <53.000MB 📉 -29.2%) vs baseline: +4.7%

✅ start-finish

Time: ✅ 53.408ms (SLO: <56.000ms -4.6%) vs baseline: ~same

Memory: ✅ 35.527MB (SLO: <38.000MB -6.5%) vs baseline: +5.0%

✅ start-finish-telemetry

Time: ✅ 54.714ms (SLO: <58.000ms -5.7%) vs baseline: -0.4%

Memory: ✅ 35.527MB (SLO: <38.000MB -6.5%) vs baseline: +4.8%

✅ start-finish-traceid128

Time: ✅ 55.901ms (SLO: <60.000ms -6.8%) vs baseline: -0.4%

Memory: ✅ 35.527MB (SLO: <38.000MB -6.5%) vs baseline: +4.9%

✅ start-traceid128

Time: ✅ 17.020ms (SLO: <22.500ms 📉 -24.4%) vs baseline: -0.7%

Memory: ✅ 37.552MB (SLO: <53.000MB 📉 -29.1%) vs baseline: +4.8%

✅ update-name

Time: ✅ 17.556ms (SLO: <22.000ms 📉 -20.2%) vs baseline: -0.4%

Memory: ✅ 37.493MB (SLO: <53.000MB 📉 -29.3%) vs baseline: +4.9%

✅ telemetryaddmetric - 30/30

✅ 1-count-metric-1-times

Time: ✅ 2.244µs (SLO: <20.000µs 📉 -88.8%) vs baseline: +9.0%

Memory: ✅ 35.586MB (SLO: <38.000MB -6.4%) vs baseline: +4.7%

✅ 1-count-metrics-100-times

Time: ✅ 148.553µs (SLO: <220.000µs 📉 -32.5%) vs baseline: +0.2%

Memory: ✅ 35.625MB (SLO: <38.000MB -6.2%) vs baseline: +4.7%

✅ 1-distribution-metric-1-times

Time: ✅ 2.430µs (SLO: <20.000µs 📉 -87.8%) vs baseline: -1.6%

Memory: ✅ 35.507MB (SLO: <38.000MB -6.6%) vs baseline: +4.7%

✅ 1-distribution-metrics-100-times

Time: ✅ 164.033µs (SLO: <230.000µs 📉 -28.7%) vs baseline: ~same

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +4.7%

✅ 1-gauge-metric-1-times

Time: ✅ 1.937µs (SLO: <20.000µs 📉 -90.3%) vs baseline: -0.1%

Memory: ✅ 35.488MB (SLO: <38.000MB -6.6%) vs baseline: +4.7%

✅ 1-gauge-metrics-100-times

Time: ✅ 137.559µs (SLO: <150.000µs -8.3%) vs baseline: +0.7%

Memory: ✅ 35.625MB (SLO: <38.000MB -6.2%) vs baseline: +4.8%

✅ 1-rate-metric-1-times

Time: ✅ 2.204µs (SLO: <20.000µs 📉 -89.0%) vs baseline: -0.2%

Memory: ✅ 35.488MB (SLO: <38.000MB -6.6%) vs baseline: +4.7%

✅ 1-rate-metrics-100-times

Time: ✅ 161.873µs (SLO: <250.000µs 📉 -35.3%) vs baseline: -0.3%

Memory: ✅ 35.625MB (SLO: <38.000MB -6.2%) vs baseline: +5.1%

✅ 100-count-metrics-100-times

Time: ✅ 15.115ms (SLO: <22.000ms 📉 -31.3%) vs baseline: -0.4%

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +4.9%

✅ 100-distribution-metrics-100-times

Time: ✅ 1.721ms (SLO: <2.550ms 📉 -32.5%) vs baseline: -0.5%

Memory: ✅ 35.606MB (SLO: <38.000MB -6.3%) vs baseline: +5.0%

✅ 100-gauge-metrics-100-times

Time: ✅ 1.407ms (SLO: <1.550ms -9.2%) vs baseline: ~same

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +5.0%

✅ 100-rate-metrics-100-times

Time: ✅ 1.691ms (SLO: <2.550ms 📉 -33.7%) vs baseline: +0.1%

Memory: ✅ 35.566MB (SLO: <38.000MB -6.4%) vs baseline: +4.7%

✅ flush-1-metric

Time: ✅ 3.559µs (SLO: <20.000µs 📉 -82.2%) vs baseline: -0.2%

Memory: ✅ 35.527MB (SLO: <38.000MB -6.5%) vs baseline: +4.8%

✅ flush-100-metrics

Time: ✅ 175.068µs (SLO: <250.000µs 📉 -30.0%) vs baseline: +0.7%

Memory: ✅ 35.684MB (SLO: <38.000MB -6.1%) vs baseline: +5.2%

✅ flush-1000-metrics

Time: ✅ 2.180ms (SLO: <2.500ms 📉 -12.8%) vs baseline: -0.5%

Memory: ✅ 36.294MB (SLO: <38.750MB -6.3%) vs baseline: +4.9%

ℹ️ Scenarios Missing SLO Configuration (46 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

@KowalskiThomas

KowalskiThomas commented Mar 13, 2026

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/merge -f --reason "need to release a patch"

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2026-03-13 13:32:05 UTC ℹ️ Start processing command /merge -f --reason "need to release a patch"
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2026-03-13 13:32:05 UTC ❌ Devflow: /merge -f --reason "need to release a patch"

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@KowalskiThomas
KowalskiThomas merged commit 6af3056 into 4.5 Mar 13, 2026
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KowalskiThomas deleted the kowalski/backport-16545-to-4.5 branch March 13, 2026 13:33
KowalskiThomas added a commit that referenced this pull request Mar 13, 2026
@KowalskiThomas @taegyunkim @P403n1x87
fix: better VM exit detection for periodic threads [backport 4.5] (#1…
3c669b7 
…6901)

## Description

This is a backport for #16741 to 4.5.

Depends on #16900.

---------

Co-authored-by: Taegyun Kim <[email protected]>
Co-authored-by: Gabriele N. Tornetta <[email protected]>
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@juanjux juanjux juanjux approved these changes
@taegyunkim taegyunkim taegyunkim approved these changes
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@KowalskiThomas @juanjux @taegyunkim