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fix(profiling): fix crash due to Frame cache eviction [backport 4.6]#17599

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juanjux merged 2 commits into
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Apr 20, 2026
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fix(profiling): fix crash due to Frame cache eviction [backport 4.6]#17599
juanjux merged 2 commits into
4.6from
juanjux/backport-17456-4.6

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@juanjux

@juanjux juanjux commented Apr 17, 2026

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https://datadoghq.atlassian.net/browse/PROF-13112

This fixes a crash in the Profiler codebase.
The crash was caused by `ThreadInfo::unwind_task` trying to use `Frame` objects that it had a reference to (`Frame::Ref`) while those same Frames were being evicted from the cache, which can happen under high load.

```
Error UnixSignal: Process terminated with SI_KERNEL (SIGSEGV)
```

The proposed fix is to change `FrameStack` to extend `std::deque<Frame>` instead of `std::deque<Frame::Ref>`, which means pushing frames to `FrameStack` actually copies them and eliminates that race condition.
This should be OK performance-wise because `Frame` is tiny and only has trivial fields to copy (no memory allocations, only integral types).

Another possible fix would be to "lock" certain `Frame` objects in the cache (to prevent them from being evicted while any Task using them is being unwound) but this would be much more complicated to get right and although it would lead to less copies, the performance picture is blurry for more subtle reasons.
So I suggest we don't go ahead with the alternative unless we absolutely need to (which we don't seem to).

Running DoE with this change on the Enterprise archetype with asyncio/FastAPI  (n=10) shows no significant difference (either in memory or CPU usage / latency), so I think this is safe to merge performance-wise.

<details>

| Commit | Run | p50 (ms) | p99 (ms) | CPU% | Mem (MB) |
|--------|-----|----------|----------|------|----------|
| `90de7913` (after) | 1 | 150.43 | 152.88 | 172.68 | 274.9 |
| `90de7913` (after) | 2 | 150.45 | 152.38 | 172.17 | 266.2 |
| `90de7913` (after) | 3 | 150.43 | 153.91 | 172.92 | 266.2 |
| `90de7913` (after) | 4 | 150.46 | 154.16 | 172.83 | 265.8 |
| `90de7913` (after) | 5 | 150.44 | 153.01 | 172.80 | 267.4 |
| `90de7913` (after) | 6 | 150.43 | 153.28 | 172.70 | 265.8 |
| `90de7913` (after) | 7 | 150.54 | 157.48 | 173.32 | 265.8 |
| `90de7913` (after) | 8 | 150.51 | 156.61 | 172.18 | 265.5 |
| `90de7913` (after) | 9 | 150.53 | 157.05 | 172.18 | 265.8 |
| `90de7913` (after) | 10 | 150.45 | 152.84 | 172.08 | 265.5 |
| `c26e6181` (before) | 1 | 150.51 | 152.80 | 173.63 | 265.5 |
| `c26e6181` (before) | 2 | 150.48 | 152.41 | 173.49 | 265.4 |
| `c26e6181` (before) | 3 | 150.47 | 156.31 | 172.53 | 265.9 |
| `c26e6181` (before) | 4 | 150.49 | 152.60 | 172.86 | 265.5 |
| `c26e6181` (before) | 5 | 150.40 | 152.86 | 172.99 | 266.0 |
| `c26e6181` (before) | 6 | 150.46 | 152.66 | 172.53 | 265.5 |
| `c26e6181` (before) | 7 | 150.49 | 154.91 | 172.74 | 265.3 |
| `c26e6181` (before) | 8 | 150.46 | 152.46 | 171.93 | 265.7 |
| `c26e6181` (before) | 9 | 150.52 | 156.70 | 172.96 | 265.7 |
| `c26e6181` (before) | 10 | 150.43 | 153.02 | 172.52 | 265.8 |

| Version | p50 (ms) | p99 (ms) | CPU% | Mem (MB) |
|---------|----------|----------|------|----------|
| `c26e6181` (before)  | 150.470 ± 0.034 | 153.67 ± 1.66 | 172.82 ± 0.50 | 265.6 ± 0.2 |
| `90de7913` (after) | 150.465 ± 0.043 | 154.36 ± 1.94 | 172.59 ± 0.41 | 266.9 ± 2.9 |
| **Δ (after − before)** | **−0.005ms (0.00%)** | **+0.69ms (+0.45%)** | **−0.23pp (−0.13%)** | **+1.2MB (+0.47%)** |

</details>

Co-authored-by: thomas.kowalski <thomas.kowalski@datadoghq.com>
@juanjux juanjux self-assigned this Apr 17, 2026
@juanjux juanjux requested review from a team as code owners April 17, 2026 14:16
@juanjux juanjux requested review from taegyunkim and wantsui April 17, 2026 14:16
@KowalskiThomas KowalskiThomas changed the title fix(profiling): fix crash due to Frame cache eviction (#17456) [backport 4.6] fix(profiling): fix crash due to Frame cache eviction [backport 4.6] Apr 17, 2026
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Performance SLOs

Comparing candidate juanjux/backport-17456-4.6 (adeedd0) with baseline 4.6 (ad4587e)

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

✅ add_aspect

Time: ✅ 108.317µs (SLO: <130.000µs 📉 -16.7%) vs baseline: +4.5%

Memory: ✅ 43.624MB (SLO: <46.000MB -5.2%) vs baseline: +5.3%


✅ add_inplace_aspect

Time: ✅ 105.181µs (SLO: <130.000µs 📉 -19.1%) vs baseline: +0.2%

Memory: ✅ 43.709MB (SLO: <46.000MB -5.0%) vs baseline: +5.0%


✅ add_inplace_noaspect

Time: ✅ 28.196µs (SLO: <40.000µs 📉 -29.5%) vs baseline: ~same

Memory: ✅ 43.668MB (SLO: <46.000MB -5.1%) vs baseline: +5.1%


✅ add_noaspect

Time: ✅ 48.908µs (SLO: <70.000µs 📉 -30.1%) vs baseline: ~same

Memory: ✅ 43.591MB (SLO: <46.000MB -5.2%) vs baseline: +4.8%


✅ bytearray_aspect

Time: ✅ 249.960µs (SLO: <400.000µs 📉 -37.5%) vs baseline: -0.4%

Memory: ✅ 43.722MB (SLO: <46.000MB -5.0%) vs baseline: +5.1%


✅ bytearray_extend_aspect

Time: ✅ 642.599µs (SLO: <800.000µs 📉 -19.7%) vs baseline: ~same

Memory: ✅ 43.619MB (SLO: <46.000MB -5.2%) vs baseline: +4.9%


✅ bytearray_extend_noaspect

Time: ✅ 264.029µs (SLO: <400.000µs 📉 -34.0%) vs baseline: +0.9%

Memory: ✅ 43.697MB (SLO: <46.000MB -5.0%) vs baseline: +5.0%


✅ bytearray_noaspect

Time: ✅ 136.081µs (SLO: <300.000µs 📉 -54.6%) vs baseline: -0.1%

Memory: ✅ 43.620MB (SLO: <46.000MB -5.2%) vs baseline: +4.6%


✅ bytes_aspect

Time: ✅ 218.870µs (SLO: <300.000µs 📉 -27.0%) vs baseline: +1.4%

Memory: ✅ 43.629MB (SLO: <46.000MB -5.2%) vs baseline: +5.3%


✅ bytes_noaspect

Time: ✅ 132.953µs (SLO: <200.000µs 📉 -33.5%) vs baseline: -0.2%

Memory: ✅ 43.646MB (SLO: <46.000MB -5.1%) vs baseline: +4.9%


✅ bytesio_aspect

Time: ✅ 3.735ms (SLO: <5.000ms 📉 -25.3%) vs baseline: ~same

Memory: ✅ 43.730MB (SLO: <46.000MB -4.9%) vs baseline: +5.0%


✅ bytesio_noaspect

Time: ✅ 314.317µs (SLO: <420.000µs 📉 -25.2%) vs baseline: +0.3%

Memory: ✅ 43.560MB (SLO: <46.000MB -5.3%) vs baseline: +4.6%


✅ capitalize_aspect

Time: ✅ 88.590µs (SLO: <300.000µs 📉 -70.5%) vs baseline: +0.8%

Memory: ✅ 43.558MB (SLO: <46.000MB -5.3%) vs baseline: +4.8%


✅ capitalize_noaspect

Time: ✅ 249.267µs (SLO: <300.000µs 📉 -16.9%) vs baseline: -0.8%

Memory: ✅ 43.636MB (SLO: <46.000MB -5.1%) vs baseline: +4.8%


✅ casefold_aspect

Time: ✅ 91.611µs (SLO: <500.000µs 📉 -81.7%) vs baseline: +4.0%

Memory: ✅ 43.533MB (SLO: <46.000MB -5.4%) vs baseline: +4.5%


✅ casefold_noaspect

Time: ✅ 301.149µs (SLO: <500.000µs 📉 -39.8%) vs baseline: -0.9%

Memory: ✅ 43.654MB (SLO: <46.000MB -5.1%) vs baseline: +5.1%


✅ decode_aspect

Time: ✅ 86.787µs (SLO: <100.000µs 📉 -13.2%) vs baseline: +0.3%

Memory: ✅ 43.535MB (SLO: <46.000MB -5.4%) vs baseline: +4.5%


✅ decode_noaspect

Time: ✅ 152.060µs (SLO: <210.000µs 📉 -27.6%) vs baseline: ~same

Memory: ✅ 43.623MB (SLO: <46.000MB -5.2%) vs baseline: +4.7%


✅ encode_aspect

Time: ✅ 84.276µs (SLO: <200.000µs 📉 -57.9%) vs baseline: +0.5%

Memory: ✅ 43.716MB (SLO: <46.000MB -5.0%) vs baseline: +5.3%


✅ encode_noaspect

Time: ✅ 136.847µs (SLO: <200.000µs 📉 -31.6%) vs baseline: +0.1%

Memory: ✅ 43.664MB (SLO: <46.000MB -5.1%) vs baseline: +5.0%


✅ format_aspect

Time: ✅ 14.622ms (SLO: <19.200ms 📉 -23.8%) vs baseline: +0.1%

Memory: ✅ 43.745MB (SLO: <46.000MB -4.9%) vs baseline: +4.9%


✅ format_map_aspect

Time: ✅ 16.434ms (SLO: <21.500ms 📉 -23.6%) vs baseline: -0.1%

Memory: ✅ 43.769MB (SLO: <46.000MB -4.8%) vs baseline: +5.0%


✅ format_map_noaspect

Time: ✅ 369.158µs (SLO: <500.000µs 📉 -26.2%) vs baseline: +0.3%

Memory: ✅ 43.650MB (SLO: <46.000MB -5.1%) vs baseline: +4.7%


✅ format_noaspect

Time: ✅ 302.255µs (SLO: <500.000µs 📉 -39.5%) vs baseline: ~same

Memory: ✅ 43.619MB (SLO: <46.000MB -5.2%) vs baseline: +4.9%


✅ index_aspect

Time: ✅ 124.177µs (SLO: <300.000µs 📉 -58.6%) vs baseline: +1.8%

Memory: ✅ 43.704MB (SLO: <46.000MB -5.0%) vs baseline: +5.4%


✅ index_noaspect

Time: ✅ 40.426µs (SLO: <300.000µs 📉 -86.5%) vs baseline: -0.4%

Memory: ✅ 43.696MB (SLO: <46.000MB -5.0%) vs baseline: +5.0%


✅ join_aspect

Time: ✅ 212.533µs (SLO: <300.000µs 📉 -29.2%) vs baseline: +0.1%

Memory: ✅ 43.635MB (SLO: <46.000MB -5.1%) vs baseline: +5.3%


✅ join_noaspect

Time: ✅ 140.052µs (SLO: <300.000µs 📉 -53.3%) vs baseline: -0.2%

Memory: ✅ 43.669MB (SLO: <46.000MB -5.1%) vs baseline: +4.8%


✅ ljust_aspect

Time: ✅ 498.294µs (SLO: <700.000µs 📉 -28.8%) vs baseline: ~same

Memory: ✅ 43.702MB (SLO: <46.000MB -5.0%) vs baseline: +5.2%


✅ ljust_noaspect

Time: ✅ 256.507µs (SLO: <300.000µs 📉 -14.5%) vs baseline: +1.1%

Memory: ✅ 43.617MB (SLO: <46.000MB -5.2%) vs baseline: +4.9%


✅ lower_aspect

Time: ✅ 291.879µs (SLO: <500.000µs 📉 -41.6%) vs baseline: -0.4%

Memory: ✅ 43.523MB (SLO: <46.000MB -5.4%) vs baseline: +5.3%


✅ lower_noaspect

Time: ✅ 233.349µs (SLO: <300.000µs 📉 -22.2%) vs baseline: -1.6%

Memory: ✅ 43.687MB (SLO: <46.000MB -5.0%) vs baseline: +4.8%


✅ lstrip_aspect

Time: ✅ 0.312ms (SLO: <3.000ms 📉 -89.6%) vs baseline: 📈 +15.7%

Memory: ✅ 43.681MB (SLO: <46.000MB -5.0%) vs baseline: +4.8%


✅ lstrip_noaspect

Time: ✅ 0.175ms (SLO: <3.000ms 📉 -94.2%) vs baseline: -0.4%

Memory: ✅ 43.636MB (SLO: <46.000MB -5.1%) vs baseline: +4.7%


✅ modulo_aspect

Time: ✅ 14.284ms (SLO: <18.750ms 📉 -23.8%) vs baseline: ~same

Memory: ✅ 43.741MB (SLO: <46.000MB -4.9%) vs baseline: +5.1%


✅ modulo_aspect_for_bytearray_bytearray

Time: ✅ 15.040ms (SLO: <19.350ms 📉 -22.3%) vs baseline: +2.0%

Memory: ✅ 43.569MB (SLO: <46.000MB -5.3%) vs baseline: +4.9%


✅ modulo_aspect_for_bytes

Time: ✅ 14.389ms (SLO: <18.900ms 📉 -23.9%) vs baseline: +0.1%

Memory: ✅ 43.690MB (SLO: <46.000MB -5.0%) vs baseline: +4.4%


✅ modulo_aspect_for_bytes_bytearray

Time: ✅ 14.655ms (SLO: <19.150ms 📉 -23.5%) vs baseline: ~same

Memory: ✅ 43.751MB (SLO: <46.000MB -4.9%) vs baseline: +4.7%


✅ modulo_noaspect

Time: ✅ 0.368ms (SLO: <3.000ms 📉 -87.7%) vs baseline: +1.9%

Memory: ✅ 43.601MB (SLO: <46.000MB -5.2%) vs baseline: +5.0%


✅ replace_aspect

Time: ✅ 18.419ms (SLO: <24.000ms 📉 -23.3%) vs baseline: +0.2%

Memory: ✅ 43.667MB (SLO: <46.000MB -5.1%) vs baseline: +4.5%


✅ replace_noaspect

Time: ✅ 281.438µs (SLO: <300.000µs -6.2%) vs baseline: +1.1%

Memory: ✅ 43.655MB (SLO: <46.000MB -5.1%) vs baseline: +4.9%


✅ repr_aspect

Time: ✅ 308.732µs (SLO: <420.000µs 📉 -26.5%) vs baseline: -1.4%

Memory: ✅ 43.610MB (SLO: <46.000MB -5.2%) vs baseline: +5.1%


✅ repr_noaspect

Time: ✅ 46.612µs (SLO: <90.000µs 📉 -48.2%) vs baseline: -0.6%

Memory: ✅ 43.552MB (SLO: <46.000MB -5.3%) vs baseline: +4.9%


✅ rstrip_aspect

Time: ✅ 388.763µs (SLO: <500.000µs 📉 -22.2%) vs baseline: +1.6%

Memory: ✅ 43.696MB (SLO: <46.000MB -5.0%) vs baseline: +4.8%


✅ rstrip_noaspect

Time: ✅ 180.601µs (SLO: <300.000µs 📉 -39.8%) vs baseline: +0.3%

Memory: ✅ 43.588MB (SLO: <46.000MB -5.2%) vs baseline: +4.8%


✅ slice_aspect

Time: ✅ 184.126µs (SLO: <300.000µs 📉 -38.6%) vs baseline: +0.5%

Memory: ✅ 43.704MB (SLO: <46.000MB -5.0%) vs baseline: +5.4%


✅ slice_noaspect

Time: ✅ 54.306µs (SLO: <90.000µs 📉 -39.7%) vs baseline: -0.1%

Memory: ✅ 43.598MB (SLO: <46.000MB -5.2%) vs baseline: +4.8%


✅ stringio_aspect

Time: ✅ 3.809ms (SLO: <5.000ms 📉 -23.8%) vs baseline: +0.6%

Memory: ✅ 43.589MB (SLO: <46.000MB -5.2%) vs baseline: +5.0%


✅ stringio_noaspect

Time: ✅ 344.239µs (SLO: <500.000µs 📉 -31.2%) vs baseline: +0.2%

Memory: ✅ 43.708MB (SLO: <46.000MB -5.0%) vs baseline: +5.1%


✅ strip_aspect

Time: ✅ 269.242µs (SLO: <350.000µs 📉 -23.1%) vs baseline: +0.6%

Memory: ✅ 43.694MB (SLO: <46.000MB -5.0%) vs baseline: +5.4%


✅ strip_noaspect

Time: ✅ 175.757µs (SLO: <240.000µs 📉 -26.8%) vs baseline: +0.6%

Memory: ✅ 43.650MB (SLO: <46.000MB -5.1%) vs baseline: +4.6%


✅ swapcase_aspect

Time: ✅ 334.008µs (SLO: <500.000µs 📉 -33.2%) vs baseline: +0.3%

Memory: ✅ 43.646MB (SLO: <46.000MB -5.1%) vs baseline: +4.8%


✅ swapcase_noaspect

Time: ✅ 269.899µs (SLO: <400.000µs 📉 -32.5%) vs baseline: -0.9%

Memory: ✅ 43.673MB (SLO: <46.000MB -5.1%) vs baseline: +5.0%


✅ title_aspect

Time: ✅ 344.879µs (SLO: <500.000µs 📉 -31.0%) vs baseline: +8.6%

Memory: ✅ 43.598MB (SLO: <46.000MB -5.2%) vs baseline: +5.3%


✅ title_noaspect

Time: ✅ 258.772µs (SLO: <400.000µs 📉 -35.3%) vs baseline: -0.1%

Memory: ✅ 43.679MB (SLO: <46.000MB -5.0%) vs baseline: +5.0%


✅ translate_aspect

Time: ✅ 493.169µs (SLO: <700.000µs 📉 -29.5%) vs baseline: +0.5%

Memory: ✅ 43.632MB (SLO: <46.000MB -5.1%) vs baseline: +4.7%


✅ translate_noaspect

Time: ✅ 422.202µs (SLO: <500.000µs 📉 -15.6%) vs baseline: -0.8%

Memory: ✅ 43.557MB (SLO: <46.000MB -5.3%) vs baseline: +4.6%


✅ upper_aspect

Time: ✅ 292.627µs (SLO: <500.000µs 📉 -41.5%) vs baseline: -0.1%

Memory: ✅ 43.585MB (SLO: <46.000MB -5.3%) vs baseline: +5.3%


✅ upper_noaspect

Time: ✅ 234.975µs (SLO: <400.000µs 📉 -41.3%) vs baseline: -0.7%

Memory: ✅ 43.770MB (SLO: <46.000MB -4.8%) vs baseline: +5.2%


📈 iastaspectsospath - 24/24

✅ ospathbasename_aspect

Time: ✅ 491.580µs (SLO: <700.000µs 📉 -29.8%) vs baseline: 📈 +18.1%

Memory: ✅ 43.536MB (SLO: <46.000MB -5.4%) vs baseline: +4.5%


✅ ospathbasename_noaspect

Time: ✅ 424.871µs (SLO: <700.000µs 📉 -39.3%) vs baseline: ~same

Memory: ✅ 43.535MB (SLO: <46.000MB -5.4%) vs baseline: +4.3%


✅ ospathjoin_aspect

Time: ✅ 620.344µs (SLO: <700.000µs 📉 -11.4%) vs baseline: +0.3%

Memory: ✅ 43.470MB (SLO: <46.000MB -5.5%) vs baseline: +5.1%


✅ ospathjoin_noaspect

Time: ✅ 630.307µs (SLO: <700.000µs -10.0%) vs baseline: +1.1%

Memory: ✅ 43.450MB (SLO: <46.000MB -5.5%) vs baseline: +4.9%


✅ ospathnormcase_aspect

Time: ✅ 345.232µs (SLO: <700.000µs 📉 -50.7%) vs baseline: +0.4%

Memory: ✅ 43.547MB (SLO: <46.000MB -5.3%) vs baseline: +4.7%


✅ ospathnormcase_noaspect

Time: ✅ 353.185µs (SLO: <700.000µs 📉 -49.5%) vs baseline: +0.6%

Memory: ✅ 43.561MB (SLO: <46.000MB -5.3%) vs baseline: +4.8%


✅ ospathsplit_aspect

Time: ✅ 478.529µs (SLO: <700.000µs 📉 -31.6%) vs baseline: -0.4%

Memory: ✅ 43.273MB (SLO: <46.000MB -5.9%) vs baseline: +3.9%


✅ ospathsplit_noaspect

Time: ✅ 491.987µs (SLO: <700.000µs 📉 -29.7%) vs baseline: ~same

Memory: ✅ 43.431MB (SLO: <46.000MB -5.6%) vs baseline: +4.6%


✅ ospathsplitdrive_aspect

Time: ✅ 369.484µs (SLO: <700.000µs 📉 -47.2%) vs baseline: +0.7%

Memory: ✅ 43.689MB (SLO: <46.000MB -5.0%) vs baseline: +5.2%


✅ ospathsplitdrive_noaspect

Time: ✅ 72.738µs (SLO: <700.000µs 📉 -89.6%) vs baseline: -1.0%

Memory: ✅ 43.667MB (SLO: <46.000MB -5.1%) vs baseline: +5.1%


✅ ospathsplitext_aspect

Time: ✅ 449.421µs (SLO: <700.000µs 📉 -35.8%) vs baseline: -0.6%

Memory: ✅ 43.681MB (SLO: <46.000MB -5.0%) vs baseline: +4.8%


✅ ospathsplitext_noaspect

Time: ✅ 455.752µs (SLO: <700.000µs 📉 -34.9%) vs baseline: -1.0%

Memory: ✅ 43.604MB (SLO: <46.000MB -5.2%) vs baseline: +4.8%

🟡 Near SLO Breach (2 suites)
🟡 flasksimple - 18/18

✅ appsec-get

Time: ✅ 3.425ms (SLO: <4.750ms 📉 -27.9%) vs baseline: -0.4%

Memory: ✅ 55.345MB (SLO: <66.500MB 📉 -16.8%) vs baseline: +4.9%


✅ appsec-post

Time: ✅ 2.918ms (SLO: <6.750ms 📉 -56.8%) vs baseline: +0.2%

Memory: ✅ 55.722MB (SLO: <66.500MB 📉 -16.2%) vs baseline: +4.8%


✅ appsec-telemetry

Time: ✅ 3.450ms (SLO: <4.750ms 📉 -27.4%) vs baseline: +0.7%

Memory: ✅ 55.393MB (SLO: <66.500MB 📉 -16.7%) vs baseline: +4.8%


✅ debugger

Time: ✅ 1.882ms (SLO: <2.000ms -5.9%) vs baseline: ~same

Memory: ✅ 48.903MB (SLO: <51.500MB -5.0%) vs baseline: +4.7%


✅ iast-get

Time: ✅ 1.873ms (SLO: <2.000ms -6.3%) vs baseline: ~same

Memory: ✅ 45.996MB (SLO: <49.000MB -6.1%) vs baseline: +4.9%


✅ profiler

Time: ✅ 1.915ms (SLO: <2.100ms -8.8%) vs baseline: ~same

Memory: ✅ 51.954MB (SLO: <52.500MB 🟡 -1.0%) vs baseline: +4.9%


✅ resource-renaming

Time: ✅ 3.418ms (SLO: <3.650ms -6.3%) vs baseline: ~same

Memory: ✅ 55.398MB (SLO: <60.000MB -7.7%) vs baseline: +4.9%


✅ tracer

Time: ✅ 3.436ms (SLO: <3.650ms -5.9%) vs baseline: +0.3%

Memory: ✅ 55.352MB (SLO: <60.000MB -7.7%) vs baseline: +4.8%


✅ tracer-native

Time: ✅ 3.431ms (SLO: <3.650ms -6.0%) vs baseline: +0.2%

Memory: ✅ 55.365MB (SLO: <60.000MB -7.7%) vs baseline: +4.9%


🟡 packagespackageforrootmodulemapping - 4/4

✅ cache_off

Time: ✅ 347.425ms (SLO: <354.300ms 🟡 -1.9%) vs baseline: ~same

Memory: ✅ 42.373MB (SLO: <46.000MB -7.9%) vs baseline: +5.1%


✅ cache_on

Time: ✅ 0.390µs (SLO: <10.000µs 📉 -96.1%) vs baseline: +0.3%

Memory: ✅ 41.454MB (SLO: <46.000MB -9.9%) vs baseline: +3.8%

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

⚠️ context_with_data_listeners

Time: ⚠️ 13.306µs (SLO: <20.000µs 📉 -33.5%) vs baseline: -0.5%

Memory: ✅ 36.333MB (SLO: <38.000MB -4.4%) vs baseline: +4.8%


✅ context_with_data_no_listeners

Time: ✅ 3.348µs (SLO: <10.000µs 📉 -66.5%) vs baseline: +0.9%

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


✅ get_item_exists

Time: ✅ 0.588µs (SLO: <10.000µs 📉 -94.1%) vs baseline: +0.8%

Memory: ✅ 36.372MB (SLO: <38.000MB -4.3%) vs baseline: +4.9%


✅ get_item_missing

Time: ✅ 0.637µs (SLO: <10.000µs 📉 -93.6%) vs baseline: +0.3%

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


✅ set_item

Time: ✅ 24.296µs (SLO: <30.000µs 📉 -19.0%) vs baseline: -0.1%

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


⚠️ packagesupdateimporteddependencies - 24/24 (1 unstable)

✅ import_many

Time: ✅ 154.913µs (SLO: <170.000µs -8.9%) vs baseline: -0.5%

Memory: ✅ 41.462MB (SLO: <46.000MB -9.9%) vs baseline: +4.8%


✅ import_many_cached

Time: ✅ 121.032µs (SLO: <130.000µs -6.9%) vs baseline: +0.2%

Memory: ✅ 41.169MB (SLO: <46.000MB 📉 -10.5%) vs baseline: +4.9%


✅ import_many_stdlib

Time: ✅ 0.782ms (SLO: <1.750ms 📉 -55.3%) vs baseline: ~same

Memory: ✅ 41.335MB (SLO: <46.000MB 📉 -10.1%) vs baseline: +3.9%


⚠️ import_many_stdlib_cached

Time: ⚠️ 0.176ms (SLO: <1.100ms 📉 -84.0%) vs baseline: -0.8%

Memory: ✅ 41.771MB (SLO: <46.000MB -9.2%) vs baseline: +4.9%


✅ import_many_unknown

Time: ✅ 829.565µs (SLO: <890.000µs -6.8%) vs baseline: -0.3%

Memory: ✅ 41.708MB (SLO: <46.000MB -9.3%) vs baseline: +4.9%


✅ import_many_unknown_cached

Time: ✅ 794.776µs (SLO: <870.000µs -8.6%) vs baseline: +0.3%

Memory: ✅ 41.658MB (SLO: <46.000MB -9.4%) vs baseline: +5.2%


✅ import_one

Time: ✅ 19.768µs (SLO: <30.000µs 📉 -34.1%) vs baseline: -0.6%

Memory: ✅ 41.779MB (SLO: <46.000MB -9.2%) vs baseline: +5.9%


✅ import_one_cache

Time: ✅ 6.298µs (SLO: <10.000µs 📉 -37.0%) vs baseline: -0.4%

Memory: ✅ 41.276MB (SLO: <46.000MB 📉 -10.3%) vs baseline: +4.1%


✅ import_one_stdlib

Time: ✅ 18.550µs (SLO: <20.000µs -7.3%) vs baseline: -1.2%

Memory: ✅ 41.372MB (SLO: <46.000MB 📉 -10.1%) vs baseline: +5.3%


✅ import_one_stdlib_cache

Time: ✅ 6.278µs (SLO: <10.000µs 📉 -37.2%) vs baseline: +0.6%

Memory: ✅ 41.216MB (SLO: <46.000MB 📉 -10.4%) vs baseline: +4.7%


✅ import_one_unknown

Time: ✅ 45.511µs (SLO: <50.000µs -9.0%) vs baseline: +0.3%

Memory: ✅ 41.616MB (SLO: <46.000MB -9.5%) vs baseline: +5.0%


✅ import_one_unknown_cache

Time: ✅ 6.305µs (SLO: <10.000µs 📉 -36.9%) vs baseline: +0.1%

Memory: ✅ 41.206MB (SLO: <43.000MB -4.2%) vs baseline: +4.6%

✅ All Tests Passing (20 suites)
codeprovenancefork - 2/2

✅ fork-10

Time: ✅ 2.133s (SLO: <2.300s -7.3%) vs baseline: +2.7%

Memory: ✅ 17.341MB (SLO: <20.000MB 📉 -13.3%) vs baseline: +4.4%


djangosimple - 30/30

✅ appsec

Time: ✅ 19.779ms (SLO: <22.300ms 📉 -11.3%) vs baseline: +0.4%

Memory: ✅ 68.636MB (SLO: <73.500MB -6.6%) vs baseline: +5.0%


✅ exception-replay-enabled

Time: ✅ 1.393ms (SLO: <1.450ms -3.9%) vs baseline: +0.9%

Memory: ✅ 66.552MB (SLO: <71.500MB -6.9%) vs baseline: +4.7%


✅ iast

Time: ✅ 19.656ms (SLO: <22.250ms 📉 -11.7%) vs baseline: -0.5%

Memory: ✅ 68.459MB (SLO: <75.000MB -8.7%) vs baseline: +4.6%


✅ profiler

Time: ✅ 15.202ms (SLO: <16.550ms -8.1%) vs baseline: -0.4%

Memory: ✅ 59.570MB (SLO: <61.000MB -2.3%) vs baseline: +4.8%


✅ resource-renaming

Time: ✅ 19.567ms (SLO: <21.750ms 📉 -10.0%) vs baseline: ~same

Memory: ✅ 68.813MB (SLO: <73.500MB -6.4%) vs baseline: +5.0%


✅ span-code-origin

Time: ✅ 19.918ms (SLO: <28.200ms 📉 -29.4%) vs baseline: +0.5%

Memory: ✅ 68.341MB (SLO: <75.000MB -8.9%) vs baseline: +4.9%


✅ tracer

Time: ✅ 19.620ms (SLO: <21.750ms -9.8%) vs baseline: -0.7%

Memory: ✅ 68.538MB (SLO: <75.000MB -8.6%) vs baseline: +4.8%


✅ tracer-and-profiler

Time: ✅ 21.111ms (SLO: <23.500ms 📉 -10.2%) vs baseline: -0.4%

Memory: ✅ 70.169MB (SLO: <75.000MB -6.4%) vs baseline: +5.2%


✅ tracer-dont-create-db-spans

Time: ✅ 19.754ms (SLO: <21.500ms -8.1%) vs baseline: +0.1%

Memory: ✅ 68.714MB (SLO: <75.000MB -8.4%) vs baseline: +5.0%


✅ tracer-minimal

Time: ✅ 16.826ms (SLO: <17.500ms -3.9%) vs baseline: -0.5%

Memory: ✅ 68.361MB (SLO: <75.000MB -8.9%) vs baseline: +4.9%


✅ tracer-native

Time: ✅ 19.609ms (SLO: <21.750ms -9.8%) vs baseline: ~same

Memory: ✅ 68.656MB (SLO: <72.500MB -5.3%) vs baseline: +5.2%


✅ tracer-no-caches

Time: ✅ 17.645ms (SLO: <19.650ms 📉 -10.2%) vs baseline: +0.3%

Memory: ✅ 68.380MB (SLO: <75.000MB -8.8%) vs baseline: +4.8%


✅ tracer-no-databases

Time: ✅ 19.310ms (SLO: <20.100ms -3.9%) vs baseline: +0.2%

Memory: ✅ 68.321MB (SLO: <75.000MB -8.9%) vs baseline: +4.7%


✅ tracer-no-middleware

Time: ✅ 19.391ms (SLO: <21.500ms -9.8%) vs baseline: -0.2%

Memory: ✅ 68.262MB (SLO: <75.000MB -9.0%) vs baseline: +4.7%


✅ tracer-no-templates

Time: ✅ 19.696ms (SLO: <22.000ms 📉 -10.5%) vs baseline: +1.3%

Memory: ✅ 68.302MB (SLO: <73.500MB -7.1%) vs baseline: +4.7%


errortrackingdjangosimple - 6/6

✅ errortracking-enabled-all

Time: ✅ 16.369ms (SLO: <19.850ms 📉 -17.5%) vs baseline: -0.4%

Memory: ✅ 68.210MB (SLO: <75.000MB -9.1%) vs baseline: +5.0%


✅ errortracking-enabled-user

Time: ✅ 16.420ms (SLO: <19.400ms 📉 -15.4%) vs baseline: ~same

Memory: ✅ 68.171MB (SLO: <75.000MB -9.1%) vs baseline: +4.9%


✅ tracer-enabled

Time: ✅ 16.352ms (SLO: <19.450ms 📉 -15.9%) vs baseline: -0.2%

Memory: ✅ 68.187MB (SLO: <75.000MB -9.1%) vs baseline: +4.9%


errortrackingflasksqli - 6/6

✅ errortracking-enabled-all

Time: ✅ 2.131ms (SLO: <2.300ms -7.3%) vs baseline: ~same

Memory: ✅ 55.583MB (SLO: <60.000MB -7.4%) vs baseline: +4.7%


✅ errortracking-enabled-user

Time: ✅ 2.140ms (SLO: <2.250ms -4.9%) vs baseline: +0.4%

Memory: ✅ 55.648MB (SLO: <60.000MB -7.3%) vs baseline: +4.9%


✅ tracer-enabled

Time: ✅ 2.129ms (SLO: <2.300ms -7.4%) vs baseline: +0.2%

Memory: ✅ 55.570MB (SLO: <60.000MB -7.4%) vs baseline: +4.7%


flasksqli - 6/6

✅ appsec-enabled

Time: ✅ 2.120ms (SLO: <4.200ms 📉 -49.5%) vs baseline: -0.3%

Memory: ✅ 55.759MB (SLO: <66.000MB 📉 -15.5%) vs baseline: +5.0%


✅ iast-enabled

Time: ✅ 2.130ms (SLO: <2.800ms 📉 -23.9%) vs baseline: ~same

Memory: ✅ 55.703MB (SLO: <62.500MB 📉 -10.9%) vs baseline: +4.9%


✅ tracer-enabled

Time: ✅ 2.122ms (SLO: <2.250ms -5.7%) vs baseline: ~same

Memory: ✅ 55.653MB (SLO: <60.000MB -7.2%) vs baseline: +4.8%


forktime - 4/4

✅ baseline

Time: ✅ 1.956ms (SLO: <3.000ms 📉 -34.8%) vs baseline: +4.0%

Memory: ✅ 29.334MB (SLO: <33.000MB 📉 -11.1%) vs baseline: +5.3%


✅ configured

Time: ✅ 8.745ms (SLO: <13.000ms 📉 -32.7%) vs baseline: +0.2%

Memory: ✅ 55.586MB (SLO: <60.000MB -7.4%) vs baseline: +4.9%


httppropagationextract - 60/60

✅ all_styles_all_headers

Time: ✅ 80.242µs (SLO: <100.000µs 📉 -19.8%) vs baseline: +5.2%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +5.0%


✅ b3_headers

Time: ✅ 12.764µs (SLO: <20.000µs 📉 -36.2%) vs baseline: -0.3%

Memory: ✅ 36.372MB (SLO: <38.000MB -4.3%) vs baseline: +4.7%


✅ b3_single_headers

Time: ✅ 11.810µs (SLO: <20.000µs 📉 -41.0%) vs baseline: +0.4%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +4.9%


✅ datadog_tracecontext_tracestate_not_propagated_on_trace_id_no_match

Time: ✅ 61.419µs (SLO: <80.000µs 📉 -23.2%) vs baseline: -0.1%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +5.0%


✅ datadog_tracecontext_tracestate_propagated_on_trace_id_match

Time: ✅ 63.361µs (SLO: <80.000µs 📉 -20.8%) vs baseline: +0.4%

Memory: ✅ 36.451MB (SLO: <38.000MB -4.1%) vs baseline: +5.1%


✅ empty_headers

Time: ✅ 1.299µs (SLO: <10.000µs 📉 -87.0%) vs baseline: -0.3%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +4.5%


✅ full_t_id_datadog_headers

Time: ✅ 21.131µs (SLO: <30.000µs 📉 -29.6%) vs baseline: -0.8%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +5.1%


✅ invalid_priority_header

Time: ✅ 5.890µs (SLO: <10.000µs 📉 -41.1%) vs baseline: -0.2%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +4.5%


✅ invalid_span_id_header

Time: ✅ 5.887µs (SLO: <10.000µs 📉 -41.1%) vs baseline: -0.1%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +4.9%


✅ invalid_tags_header

Time: ✅ 5.902µs (SLO: <10.000µs 📉 -41.0%) vs baseline: +0.2%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +4.9%


✅ invalid_trace_id_header

Time: ✅ 5.928µs (SLO: <10.000µs 📉 -40.7%) vs baseline: +0.4%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +4.7%


✅ large_header_no_matches

Time: ✅ 26.985µs (SLO: <30.000µs 📉 -10.1%) vs baseline: -0.4%

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


✅ large_valid_headers_all

Time: ✅ 28.105µs (SLO: <40.000µs 📉 -29.7%) vs baseline: ~same

Memory: ✅ 36.372MB (SLO: <38.000MB -4.3%) vs baseline: +4.7%


✅ medium_header_no_matches

Time: ✅ 9.305µs (SLO: <20.000µs 📉 -53.5%) vs baseline: +0.8%

Memory: ✅ 36.451MB (SLO: <38.000MB -4.1%) vs baseline: +5.1%


✅ medium_valid_headers_all

Time: ✅ 10.688µs (SLO: <20.000µs 📉 -46.6%) vs baseline: +0.3%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +4.9%


✅ none_propagation_style

Time: ✅ 1.397µs (SLO: <10.000µs 📉 -86.0%) vs baseline: +0.4%

Memory: ✅ 36.392MB (SLO: <38.000MB -4.2%) vs baseline: +4.9%


✅ tracecontext_headers

Time: ✅ 32.821µs (SLO: <40.000µs 📉 -17.9%) vs baseline: ~same

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +4.7%


✅ valid_headers_all

Time: ✅ 5.895µs (SLO: <10.000µs 📉 -41.0%) vs baseline: +0.5%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +5.1%


✅ valid_headers_basic

Time: ✅ 5.490µs (SLO: <10.000µs 📉 -45.1%) vs baseline: ~same

Memory: ✅ 36.372MB (SLO: <38.000MB -4.3%) vs baseline: +4.6%


✅ wsgi_empty_headers

Time: ✅ 1.300µs (SLO: <10.000µs 📉 -87.0%) vs baseline: -0.6%

Memory: ✅ 36.333MB (SLO: <38.000MB -4.4%) vs baseline: +4.5%


✅ wsgi_invalid_priority_header

Time: ✅ 5.964µs (SLO: <10.000µs 📉 -40.4%) vs baseline: +0.2%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +4.6%


✅ wsgi_invalid_span_id_header

Time: ✅ 1.300µs (SLO: <10.000µs 📉 -87.0%) vs baseline: -0.6%

Memory: ✅ 36.372MB (SLO: <38.000MB -4.3%) vs baseline: +4.8%


✅ wsgi_invalid_tags_header

Time: ✅ 5.935µs (SLO: <10.000µs 📉 -40.6%) vs baseline: ~same

Memory: ✅ 36.392MB (SLO: <38.000MB -4.2%) vs baseline: +4.7%


✅ wsgi_invalid_trace_id_header

Time: ✅ 5.972µs (SLO: <10.000µs 📉 -40.3%) vs baseline: +0.3%

Memory: ✅ 36.372MB (SLO: <38.000MB -4.3%) vs baseline: +4.6%


✅ wsgi_large_header_no_matches

Time: ✅ 28.065µs (SLO: <40.000µs 📉 -29.8%) vs baseline: -0.2%

Memory: ✅ 36.471MB (SLO: <38.000MB -4.0%) vs baseline: +4.9%


✅ wsgi_large_valid_headers_all

Time: ✅ 29.090µs (SLO: <40.000µs 📉 -27.3%) vs baseline: -0.4%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +5.0%


✅ wsgi_medium_header_no_matches

Time: ✅ 9.503µs (SLO: <20.000µs 📉 -52.5%) vs baseline: ~same

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +4.9%


✅ wsgi_medium_valid_headers_all

Time: ✅ 11.078µs (SLO: <20.000µs 📉 -44.6%) vs baseline: +0.5%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +5.0%


✅ wsgi_valid_headers_all

Time: ✅ 5.958µs (SLO: <10.000µs 📉 -40.4%) vs baseline: +0.4%

Memory: ✅ 36.392MB (SLO: <38.000MB -4.2%) vs baseline: +5.0%


✅ wsgi_valid_headers_basic

Time: ✅ 5.480µs (SLO: <10.000µs 📉 -45.2%) vs baseline: -1.3%

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


httppropagationinject - 16/16

✅ ids_only

Time: ✅ 20.709µs (SLO: <30.000µs 📉 -31.0%) vs baseline: +3.7%

Memory: ✅ 36.372MB (SLO: <38.000MB -4.3%) vs baseline: +4.8%


✅ with_all

Time: ✅ 26.933µs (SLO: <40.000µs 📉 -32.7%) vs baseline: +0.8%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +4.9%


✅ with_dd_origin

Time: ✅ 23.852µs (SLO: <30.000µs 📉 -20.5%) vs baseline: +0.2%

Memory: ✅ 36.530MB (SLO: <38.000MB -3.9%) vs baseline: +5.0%


✅ with_priority_and_origin

Time: ✅ 23.313µs (SLO: <40.000µs 📉 -41.7%) vs baseline: +0.8%

Memory: ✅ 36.471MB (SLO: <38.000MB -4.0%) vs baseline: +5.0%


✅ with_sampling_priority

Time: ✅ 19.953µs (SLO: <30.000µs 📉 -33.5%) vs baseline: -0.2%

Memory: ✅ 36.431MB (SLO: <38.000MB -4.1%) vs baseline: +4.6%


✅ with_tags

Time: ✅ 24.989µs (SLO: <40.000µs 📉 -37.5%) vs baseline: +0.3%

Memory: ✅ 36.392MB (SLO: <38.000MB -4.2%) vs baseline: +4.9%


✅ with_tags_invalid

Time: ✅ 26.400µs (SLO: <40.000µs 📉 -34.0%) vs baseline: +0.4%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +5.0%


✅ with_tags_max_size

Time: ✅ 25.452µs (SLO: <40.000µs 📉 -36.4%) vs baseline: +0.2%

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +4.3%


iastaspectssplit - 12/12

✅ rsplit_aspect

Time: ✅ 157.605µs (SLO: <250.000µs 📉 -37.0%) vs baseline: +4.5%

Memory: ✅ 43.411MB (SLO: <46.000MB -5.6%) vs baseline: +5.0%


✅ rsplit_noaspect

Time: ✅ 158.839µs (SLO: <250.000µs 📉 -36.5%) vs baseline: +1.0%

Memory: ✅ 43.431MB (SLO: <46.000MB -5.6%) vs baseline: +4.2%


✅ split_aspect

Time: ✅ 149.869µs (SLO: <250.000µs 📉 -40.1%) vs baseline: +0.7%

Memory: ✅ 43.195MB (SLO: <46.000MB -6.1%) vs baseline: +4.1%


✅ split_noaspect

Time: ✅ 154.228µs (SLO: <250.000µs 📉 -38.3%) vs baseline: +0.7%

Memory: ✅ 43.332MB (SLO: <46.000MB -5.8%) vs baseline: +4.1%


✅ splitlines_aspect

Time: ✅ 144.589µs (SLO: <250.000µs 📉 -42.2%) vs baseline: -0.3%

Memory: ✅ 43.665MB (SLO: <46.000MB -5.1%) vs baseline: +5.3%


✅ splitlines_noaspect

Time: ✅ 151.736µs (SLO: <250.000µs 📉 -39.3%) vs baseline: +1.2%

Memory: ✅ 43.372MB (SLO: <46.000MB -5.7%) vs baseline: +4.8%


iastpropagation - 8/8

✅ no-propagation

Time: ✅ 48.706µs (SLO: <60.000µs 📉 -18.8%) vs baseline: -0.4%

Memory: ✅ 39.734MB (SLO: <42.000MB -5.4%) vs baseline: +4.7%


✅ propagation_enabled

Time: ✅ 136.132µs (SLO: <190.000µs 📉 -28.4%) vs baseline: -0.4%

Memory: ✅ 39.675MB (SLO: <42.000MB -5.5%) vs baseline: +4.7%


✅ propagation_enabled_100

Time: ✅ 1.554ms (SLO: <2.300ms 📉 -32.5%) vs baseline: -0.8%

Memory: ✅ 39.695MB (SLO: <42.000MB -5.5%) vs baseline: +4.8%


✅ propagation_enabled_1000

Time: ✅ 29.074ms (SLO: <34.550ms 📉 -15.9%) vs baseline: -0.2%

Memory: ✅ 39.715MB (SLO: <42.000MB -5.4%) vs baseline: +4.8%


otelsdkspan - 24/24

✅ add-event

Time: ✅ 40.668ms (SLO: <42.000ms -3.2%) vs baseline: +0.2%

Memory: ✅ 38.771MB (SLO: <40.750MB -4.9%) vs baseline: +4.9%


✅ add-link

Time: ✅ 36.529ms (SLO: <38.550ms -5.2%) vs baseline: +0.8%

Memory: ✅ 38.810MB (SLO: <40.750MB -4.8%) vs baseline: +4.5%


✅ add-metrics

Time: ✅ 218.161ms (SLO: <232.000ms -6.0%) vs baseline: -0.3%

Memory: ✅ 38.830MB (SLO: <40.750MB -4.7%) vs baseline: +5.0%


✅ add-tags

Time: ✅ 211.925ms (SLO: <221.600ms -4.4%) vs baseline: +0.1%

Memory: ✅ 38.830MB (SLO: <40.750MB -4.7%) vs baseline: +4.9%


✅ get-context

Time: ✅ 29.292ms (SLO: <31.300ms -6.4%) vs baseline: +0.8%

Memory: ✅ 38.889MB (SLO: <40.750MB -4.6%) vs baseline: +5.1%


✅ is-recording

Time: ✅ 29.298ms (SLO: <31.000ms -5.5%) vs baseline: +0.8%

Memory: ✅ 38.791MB (SLO: <40.750MB -4.8%) vs baseline: +4.7%


✅ record-exception

Time: ✅ 63.213ms (SLO: <65.850ms -4.0%) vs baseline: +0.1%

Memory: ✅ 38.830MB (SLO: <40.750MB -4.7%) vs baseline: +5.2%


✅ set-status

Time: ✅ 31.875ms (SLO: <34.150ms -6.7%) vs baseline: -0.4%

Memory: ✅ 38.751MB (SLO: <40.750MB -4.9%) vs baseline: +4.2%


✅ start

Time: ✅ 29.385ms (SLO: <30.150ms -2.5%) vs baseline: +0.9%

Memory: ✅ 38.810MB (SLO: <40.750MB -4.8%) vs baseline: +4.9%


✅ start-finish

Time: ✅ 34.248ms (SLO: <35.350ms -3.1%) vs baseline: +1.1%

Memory: ✅ 38.751MB (SLO: <40.750MB -4.9%) vs baseline: +4.6%


✅ start-finish-telemetry

Time: ✅ 34.205ms (SLO: <35.450ms -3.5%) vs baseline: ~same

Memory: ✅ 38.751MB (SLO: <40.750MB -4.9%) vs baseline: +4.8%


✅ update-name

Time: ✅ 31.083ms (SLO: <33.400ms -6.9%) vs baseline: +0.4%

Memory: ✅ 38.732MB (SLO: <40.750MB -5.0%) vs baseline: +4.4%


otelspan - 22/22

✅ add-event

Time: ✅ 40.440ms (SLO: <47.150ms 📉 -14.2%) vs baseline: ~same

Memory: ✅ 41.197MB (SLO: <47.000MB 📉 -12.3%) vs baseline: +4.8%


✅ add-metrics

Time: ✅ 250.691ms (SLO: <344.800ms 📉 -27.3%) vs baseline: +0.2%

Memory: ✅ 45.617MB (SLO: <47.500MB -4.0%) vs baseline: +5.0%


✅ add-tags

Time: ✅ 309.393ms (SLO: <330.000ms -6.2%) vs baseline: +0.8%

Memory: ✅ 45.761MB (SLO: <47.500MB -3.7%) vs baseline: +4.8%


✅ get-context

Time: ✅ 80.984ms (SLO: <92.350ms 📉 -12.3%) vs baseline: +0.5%

Memory: ✅ 41.607MB (SLO: <46.500MB 📉 -10.5%) vs baseline: +5.7%


✅ is-recording

Time: ✅ 36.709ms (SLO: <44.500ms 📉 -17.5%) vs baseline: -0.4%

Memory: ✅ 41.077MB (SLO: <47.500MB 📉 -13.5%) vs baseline: +4.8%


✅ record-exception

Time: ✅ 59.178ms (SLO: <67.650ms 📉 -12.5%) vs baseline: ~same

Memory: ✅ 41.695MB (SLO: <47.000MB 📉 -11.3%) vs baseline: +4.9%


✅ set-status

Time: ✅ 43.309ms (SLO: <50.400ms 📉 -14.1%) vs baseline: +0.1%

Memory: ✅ 41.192MB (SLO: <47.000MB 📉 -12.4%) vs baseline: +5.1%


✅ start

Time: ✅ 37.432ms (SLO: <43.450ms 📉 -13.9%) vs baseline: +3.4%

Memory: ✅ 41.159MB (SLO: <47.000MB 📉 -12.4%) vs baseline: +4.9%


✅ start-finish

Time: ✅ 85.295ms (SLO: <90.000ms -5.2%) vs baseline: +0.2%

Memory: ✅ 38.889MB (SLO: <46.500MB 📉 -16.4%) vs baseline: +4.9%


✅ start-finish-telemetry

Time: ✅ 86.700ms (SLO: <91.000ms -4.7%) vs baseline: ~same

Memory: ✅ 38.948MB (SLO: <46.500MB 📉 -16.2%) vs baseline: +5.0%


✅ update-name

Time: ✅ 38.074ms (SLO: <45.150ms 📉 -15.7%) vs baseline: +0.6%

Memory: ✅ 41.290MB (SLO: <47.000MB 📉 -12.1%) vs baseline: +5.3%


rand - 2/2

✅ rand128bits

Time: ✅ 0.181µs (SLO: <21.000µs 📉 -99.1%) vs baseline: +0.2%


✅ rand64bits

Time: ✅ 0.123µs (SLO: <15.000µs 📉 -99.2%) vs baseline: -0.3%


ratelimiter - 12/12

✅ defaults

Time: ✅ 2.359µs (SLO: <10.000µs 📉 -76.4%) vs baseline: -0.3%

Memory: ✅ 36.196MB (SLO: <38.000MB -4.7%) vs baseline: +4.5%


✅ high_rate_limit

Time: ✅ 2.420µs (SLO: <10.000µs 📉 -75.8%) vs baseline: ~same

Memory: ✅ 36.451MB (SLO: <38.000MB -4.1%) vs baseline: +5.0%


✅ long_window

Time: ✅ 2.370µs (SLO: <10.000µs 📉 -76.3%) vs baseline: +0.4%

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +4.8%


✅ low_rate_limit

Time: ✅ 2.394µs (SLO: <10.000µs 📉 -76.1%) vs baseline: +1.1%

Memory: ✅ 36.215MB (SLO: <38.000MB -4.7%) vs baseline: +4.5%


✅ no_rate_limit

Time: ✅ 0.825µs (SLO: <10.000µs 📉 -91.7%) vs baseline: -0.8%

Memory: ✅ 36.490MB (SLO: <38.000MB -4.0%) vs baseline: +5.7%


✅ short_window

Time: ✅ 2.521µs (SLO: <10.000µs 📉 -74.8%) vs baseline: +0.7%

Memory: ✅ 36.215MB (SLO: <38.000MB -4.7%) vs baseline: +4.5%


recursivecomputation - 8/8

✅ deep

Time: ✅ 309.671ms (SLO: <320.950ms -3.5%) vs baseline: -0.2%

Memory: ✅ 37.159MB (SLO: <38.750MB -4.1%) vs baseline: +4.5%


✅ deep-profiled

Time: ✅ 327.268ms (SLO: <359.150ms -8.9%) vs baseline: -0.1%

Memory: ✅ 43.116MB (SLO: <46.000MB -6.3%) vs baseline: +5.0%


✅ medium

Time: ✅ 7.157ms (SLO: <7.400ms -3.3%) vs baseline: +0.2%

Memory: ✅ 36.431MB (SLO: <38.000MB -4.1%) vs baseline: +5.3%


✅ shallow

Time: ✅ 0.984ms (SLO: <1.050ms -6.3%) vs baseline: +1.4%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +4.6%


samplingrules - 8/8

✅ average_match

Time: ✅ 150.470µs (SLO: <290.000µs 📉 -48.1%) vs baseline: +0.3%

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +4.8%


✅ high_match

Time: ✅ 198.765µs (SLO: <480.000µs 📉 -58.6%) vs baseline: +1.2%

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


✅ low_match

Time: ✅ 99.756µs (SLO: <120.000µs 📉 -16.9%) vs baseline: -0.7%

Memory: ✅ 701.703MB (SLO: <780.000MB 📉 -10.0%) vs baseline: +4.9%


✅ very_low_match

Time: ✅ 2.955ms (SLO: <8.500ms 📉 -65.2%) vs baseline: -0.2%

Memory: ✅ 78.831MB (SLO: <85.000MB -7.3%) vs baseline: +5.1%


sethttpmeta - 32/32

✅ all-disabled

Time: ✅ 10.466µs (SLO: <20.000µs 📉 -47.7%) vs baseline: -0.2%

Memory: ✅ 37.080MB (SLO: <38.750MB -4.3%) vs baseline: +5.7%


✅ all-enabled

Time: ✅ 41.559µs (SLO: <50.000µs 📉 -16.9%) vs baseline: +2.6%

Memory: ✅ 36.864MB (SLO: <38.750MB -4.9%) vs baseline: +5.1%


✅ collectipvariant_exists

Time: ✅ 41.333µs (SLO: <50.000µs 📉 -17.3%) vs baseline: ~same

Memory: ✅ 36.825MB (SLO: <38.750MB -5.0%) vs baseline: +5.1%


✅ no-collectipvariant

Time: ✅ 40.617µs (SLO: <50.000µs 📉 -18.8%) vs baseline: ~same

Memory: ✅ 36.844MB (SLO: <38.750MB -4.9%) vs baseline: +5.0%


✅ no-useragentvariant

Time: ✅ 39.332µs (SLO: <50.000µs 📉 -21.3%) vs baseline: +0.4%

Memory: ✅ 36.805MB (SLO: <38.750MB -5.0%) vs baseline: +4.6%


✅ obfuscation-no-query

Time: ✅ 41.212µs (SLO: <50.000µs 📉 -17.6%) vs baseline: +0.4%

Memory: ✅ 36.766MB (SLO: <38.750MB -5.1%) vs baseline: +5.0%


✅ obfuscation-regular-case-explicit-query

Time: ✅ 76.495µs (SLO: <90.000µs 📉 -15.0%) vs baseline: -0.3%

Memory: ✅ 37.159MB (SLO: <38.750MB -4.1%) vs baseline: +4.9%


✅ obfuscation-regular-case-implicit-query

Time: ✅ 77.118µs (SLO: <90.000µs 📉 -14.3%) vs baseline: -0.1%

Memory: ✅ 37.218MB (SLO: <38.750MB -4.0%) vs baseline: +5.0%


✅ obfuscation-send-querystring-disabled

Time: ✅ 155.887µs (SLO: <170.000µs -8.3%) vs baseline: +0.2%

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


✅ obfuscation-worst-case-explicit-query

Time: ✅ 150.537µs (SLO: <160.000µs -5.9%) vs baseline: +0.2%

Memory: ✅ 37.159MB (SLO: <38.750MB -4.1%) vs baseline: +4.9%


✅ obfuscation-worst-case-implicit-query

Time: ✅ 156.507µs (SLO: <170.000µs -7.9%) vs baseline: +0.2%

Memory: ✅ 37.179MB (SLO: <38.750MB -4.1%) vs baseline: +5.2%


✅ useragentvariant_exists_1

Time: ✅ 40.106µs (SLO: <50.000µs 📉 -19.8%) vs baseline: +0.4%

Memory: ✅ 36.982MB (SLO: <38.750MB -4.6%) vs baseline: +5.0%


✅ useragentvariant_exists_2

Time: ✅ 41.183µs (SLO: <50.000µs 📉 -17.6%) vs baseline: +0.2%

Memory: ✅ 36.884MB (SLO: <38.750MB -4.8%) vs baseline: +5.0%


✅ useragentvariant_exists_3

Time: ✅ 40.492µs (SLO: <50.000µs 📉 -19.0%) vs baseline: -0.1%

Memory: ✅ 36.884MB (SLO: <38.750MB -4.8%) vs baseline: +4.6%


✅ useragentvariant_not_exists_1

Time: ✅ 39.863µs (SLO: <50.000µs 📉 -20.3%) vs baseline: -0.5%

Memory: ✅ 36.943MB (SLO: <38.750MB -4.7%) vs baseline: +5.1%


✅ useragentvariant_not_exists_2

Time: ✅ 40.012µs (SLO: <50.000µs 📉 -20.0%) vs baseline: -0.1%

Memory: ✅ 36.923MB (SLO: <38.750MB -4.7%) vs baseline: +4.7%


span - 26/26

✅ add-event

Time: ✅ 18.439ms (SLO: <22.500ms 📉 -18.0%) vs baseline: ~same

Memory: ✅ 38.620MB (SLO: <53.000MB 📉 -27.1%) vs baseline: +4.9%


✅ add-metrics

Time: ✅ 88.235ms (SLO: <93.500ms -5.6%) vs baseline: -0.1%

Memory: ✅ 43.057MB (SLO: <53.000MB 📉 -18.8%) vs baseline: +4.7%


✅ add-tags

Time: ✅ 144.590ms (SLO: <155.000ms -6.7%) vs baseline: ~same

Memory: ✅ 42.977MB (SLO: <53.000MB 📉 -18.9%) vs baseline: +4.5%


✅ get-context

Time: ✅ 16.864ms (SLO: <20.500ms 📉 -17.7%) vs baseline: +0.3%

Memory: ✅ 38.476MB (SLO: <53.000MB 📉 -27.4%) vs baseline: +5.2%


✅ is-recording

Time: ✅ 16.912ms (SLO: <20.500ms 📉 -17.5%) vs baseline: -0.4%

Memory: ✅ 38.417MB (SLO: <53.000MB 📉 -27.5%) vs baseline: +4.8%


✅ record-exception

Time: ✅ 37.755ms (SLO: <41.000ms -7.9%) vs baseline: +0.4%

Memory: ✅ 39.114MB (SLO: <53.000MB 📉 -26.2%) vs baseline: +5.0%


✅ set-status

Time: ✅ 18.651ms (SLO: <22.000ms 📉 -15.2%) vs baseline: -0.6%

Memory: ✅ 38.476MB (SLO: <53.000MB 📉 -27.4%) vs baseline: +4.9%


✅ start

Time: ✅ 17.620ms (SLO: <20.500ms 📉 -14.0%) vs baseline: +4.4%

Memory: ✅ 38.417MB (SLO: <53.000MB 📉 -27.5%) vs baseline: +4.9%


✅ start-finish

Time: ✅ 53.508ms (SLO: <56.000ms -4.4%) vs baseline: +0.2%

Memory: ✅ 36.333MB (SLO: <38.000MB -4.4%) vs baseline: +4.9%


✅ start-finish-telemetry

Time: ✅ 54.795ms (SLO: <58.000ms -5.5%) vs baseline: ~same

Memory: ✅ 36.215MB (SLO: <38.000MB -4.7%) vs baseline: +4.3%


✅ start-finish-traceid128

Time: ✅ 56.313ms (SLO: <60.000ms -6.1%) vs baseline: +0.4%

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


✅ start-traceid128

Time: ✅ 16.896ms (SLO: <22.500ms 📉 -24.9%) vs baseline: +0.2%

Memory: ✅ 38.417MB (SLO: <53.000MB 📉 -27.5%) vs baseline: +4.7%


✅ update-name

Time: ✅ 17.338ms (SLO: <22.000ms 📉 -21.2%) vs baseline: -0.4%

Memory: ✅ 38.555MB (SLO: <53.000MB 📉 -27.3%) vs baseline: +5.3%


telemetryaddmetric - 30/30

✅ 1-count-metric-1-times

Time: ✅ 2.179µs (SLO: <20.000µs 📉 -89.1%) vs baseline: +5.7%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +4.9%


✅ 1-count-metrics-100-times

Time: ✅ 151.636µs (SLO: <220.000µs 📉 -31.1%) vs baseline: +0.7%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +4.7%


✅ 1-distribution-metric-1-times

Time: ✅ 2.433µs (SLO: <20.000µs 📉 -87.8%) vs baseline: +0.8%

Memory: ✅ 36.294MB (SLO: <38.000MB -4.5%) vs baseline: +4.7%


✅ 1-distribution-metrics-100-times

Time: ✅ 163.395µs (SLO: <230.000µs 📉 -29.0%) vs baseline: -0.8%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +4.7%


✅ 1-gauge-metric-1-times

Time: ✅ 1.939µs (SLO: <20.000µs 📉 -90.3%) vs baseline: -0.9%

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


✅ 1-gauge-metrics-100-times

Time: ✅ 137.287µs (SLO: <150.000µs -8.5%) vs baseline: +0.5%

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +4.5%


✅ 1-rate-metric-1-times

Time: ✅ 2.197µs (SLO: <20.000µs 📉 -89.0%) vs baseline: -1.1%

Memory: ✅ 36.137MB (SLO: <38.000MB -4.9%) vs baseline: +4.2%


✅ 1-rate-metrics-100-times

Time: ✅ 163.412µs (SLO: <250.000µs 📉 -34.6%) vs baseline: -1.2%

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


✅ 100-count-metrics-100-times

Time: ✅ 15.030ms (SLO: <22.000ms 📉 -31.7%) vs baseline: -0.3%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +4.8%


✅ 100-distribution-metrics-100-times

Time: ✅ 1.710ms (SLO: <2.550ms 📉 -32.9%) vs baseline: ~same

Memory: ✅ 36.333MB (SLO: <38.000MB -4.4%) vs baseline: +4.9%


✅ 100-gauge-metrics-100-times

Time: ✅ 1.404ms (SLO: <1.550ms -9.4%) vs baseline: -0.3%

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


✅ 100-rate-metrics-100-times

Time: ✅ 1.684ms (SLO: <2.550ms 📉 -34.0%) vs baseline: +0.6%

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


✅ flush-1-metric

Time: ✅ 3.510µs (SLO: <20.000µs 📉 -82.5%) vs baseline: -0.5%

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


✅ flush-100-metrics

Time: ✅ 176.338µs (SLO: <250.000µs 📉 -29.5%) vs baseline: +0.9%

Memory: ✅ 36.333MB (SLO: <38.000MB -4.4%) vs baseline: +4.7%


✅ flush-1000-metrics

Time: ✅ 2.196ms (SLO: <2.500ms 📉 -12.1%) vs baseline: -0.1%

Memory: ✅ 37.002MB (SLO: <38.750MB -4.5%) vs baseline: +4.8%


tracer - 6/6

✅ large

Time: ✅ 31.511ms (SLO: <32.950ms -4.4%) vs baseline: +0.1%

Memory: ✅ 37.611MB (SLO: <39.250MB -4.2%) vs baseline: +5.1%


✅ medium

Time: ✅ 3.104ms (SLO: <3.200ms -3.0%) vs baseline: -0.4%

Memory: ✅ 36.333MB (SLO: <38.750MB -6.2%) vs baseline: +4.7%


✅ small

Time: ✅ 361.605µs (SLO: <370.000µs -2.3%) vs baseline: +3.3%

Memory: ✅ 36.313MB (SLO: <38.750MB -6.3%) vs baseline: +4.8%

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

@juanjux

juanjux commented Apr 20, 2026

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/merge

@gh-worker-devflow-routing-ef8351

gh-worker-devflow-routing-ef8351 Bot commented Apr 20, 2026

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View all feedbacks in Devflow UI.

2026-04-20 09:03:25 UTC ℹ️ Start processing command /merge


2026-04-20 09:03:30 UTC ℹ️ MergeQueue: pull request added to the queue

The expected merge time in 4.6 is approximately 53m (p90).


2026-04-20 09:49:48 UTC 🚨 MergeQueue: This merge request is in error

mergequeue build completed successfully, but the github api returned an error while merging the pr

Details

Error: PUT https://api.github.com/repos/DataDog/dd-trace-py/pulls/17599/merge: 405 Repository rule violations found

3 of 3 required status checks are expected.

[] (Request ID: 88B0:198333:3D642D1:F76037B:69E5F6AE)

FullStacktrace:
activity error (type: github.GithubService_MergePullRequest, scheduledEventID: 50, startedEventID: 51, identity: 1@github-worker-7566d76b5c-c6wcq@): PUT https://api.github.com/repos/DataDog/dd-trace-py/pulls/17599/merge: 405 Repository rule violations found

3 of 3 required status checks are expected.

[] (Request ID: 88B0:198333:3D642D1:F76037B:69E5F6AE) (type: GitFailure, retryable: false): PUT https://api.github.com/repos/DataDog/dd-trace-py/pulls/17599/merge: 405 Repository rule violations found

3 of 3 required status checks are expected.

[] (type: ErrorResponse, retryable: true)

@juanjux juanjux merged commit 2efae40 into 4.6 Apr 20, 2026
350 checks passed
@juanjux juanjux deleted the juanjux/backport-17456-4.6 branch April 20, 2026 14:52
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Codeowners resolved as

ddtrace/internal/datadog/profiling/stack/echion/echion/stacks.h         @DataDog/profiling-python
ddtrace/internal/datadog/profiling/stack/src/echion/stacks.cc           @DataDog/profiling-python
ddtrace/internal/datadog/profiling/stack/src/echion/tasks.cc            @DataDog/profiling-python
ddtrace/internal/datadog/profiling/stack/src/echion/threads.cc          @DataDog/profiling-python
releasenotes/notes/profiling-fix-asyncio-unwinding-crash-b192aef728433e7d.yaml  @DataDog/apm-python

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3 participants