fix(internal): crash in ContextVar by KowalskiThomas · Pull Request #17407 · DataDog/dd-trace-py

KowalskiThomas · 2026-04-08T16:54:07Z

What is this PR?

This PR fixes a crash in ddtrace discovered by Crash Tracking where we crash in garbage collection. While this definitely does sound like a Python bug and not a ddtrace one, we need to fix this for existing versions of Python and in the meantime until Python fixes it itself.

The crash is in PyObject_GC_UnTrack, called from the dealloc path of a HAMT node that PyContextVar_Set is trying to free via Py_DECREF. If that HAMT node's memory is already unmapped, the PyObject_GC_UnTrack write faults.

Error UnixSignal: Process terminated with SEGV_MAPERR (SIGSEGV)
#0  0x00007fc92c3dd27f PyObject_GC_UnTrack
#1  0x00007fc92c4e1448 PyContextVar_Set
#2  0x00007fc92c3f3546 _PyEval_EvalFrameDefault
#3  0x00007fc92c3fbce7 PyObject_Vectorcall
#4  0x00007fc92c3f039b _PyEval_EvalFrameDefault
#5  0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#6  0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#7  0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#8  0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#9  0x00007fc92c44e25f PyIter_Send
#10 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#11 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#12 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#13 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#14 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#15 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#16 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#17 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#18 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#19 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#20 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#21 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#22 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#23 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#24 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#25 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#26 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#27 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#28 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#29 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#30 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#31 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#32 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#33 0x00007fc92c3f2f38 _PyEval_EvalFrameDefault
#34 0x00007fc8f1f854ff __Pyx_PyObject_Call (/project/uvloop/loop.c:191431:15)
#35 0x00007fc8f204f948 __pyx_f_6uvloop_4loop_6Handle__run (/project/uvloop/loop.c:66901:25)
#36 0x00007fc8f2053f7c __pyx_f_6uvloop_4loop_4Loop__on_idle (/project/uvloop/loop.c:17975:25)
#37 0x00007fc8f204f9a6 __pyx_f_6uvloop_4loop_6Handle__run (/project/uvloop/loop.c:66927:24)
#38 0x00007fc8f2051047 __pyx_f_6uvloop_4loop_cb_idle_callback (/project/uvloop/loop.c:87335:19)
#39 0x00007fc8f20687d1 uv__run_idle (/project/build/libuv-x86_64/src/unix/loop-watcher.c:68:1)
#40 0x00007fc8f2065b07 uv_run (/project/build/libuv-x86_64/src/unix/core.c:439:5)
#41 0x00007fc8f1fb83a0 __pyx_f_6uvloop_4loop_4Loop__Loop__run (/project/uvloop/loop.c:18458:23)
#42 0x00007fc8f1ff612d __pyx_f_6uvloop_4loop_4Loop__run (/project/uvloop/loop.c:18876:18)
#43 0x00007fc8f1ff1e85 __pyx_pf_6uvloop_4loop_4Loop_24run_forever (/project/uvloop/loop.c:31528:18)
#44 0x00007fc8f1ff1e85 __pyx_pw_6uvloop_4loop_4Loop_25run_forever (/project/uvloop/loop.c:31331:13)
#45 0x00007fc92c3ec26e PyObject_VectorcallMethod
#46 0x00007fc92c3f039b _PyEval_EvalFrameDefault
#47 0x00007fc92c47474c PyEval_EvalCode
#48 0x00007fc92c4a24a7 _PyRun_SimpleFileObject
#49 0x00007fc92c4a1b38 _PyRun_AnyFileObject
#50 0x00007fc92c49c3be Py_RunMain
#51 0x00007fc92c46461b Py_BytesMain
#52 0x00007fc92c067d65 __libc_start_main
#53 0x0000559068986071 _start

The crash happens in PyObject_GC_UnTrack, called from the dealloc path of a HAMT node that PyContextVar_Set is trying to free via Py_DECREF. If that HAMT node's memory is already unmapped, the PyObject_GC_UnTrack write faults.

Root Cause

BaseWrappingContext.__enter__ does this...

def __enter__(self) -> "BaseWrappingContext":
    token: Token = self._storage.set({})          # 1. create new HAMT entry
    self._storage.get()["__dd_wrapping_context_token__"] = token  # 2. store Token in dict
    return self

Step 1 stores a fresh {} dict in the context's HAMT under self._storage
Step 2 puts the Token returned by set() into that same dict.

A Token object holds tok_ctx, which is a strong reference to the PyContext that was active when set was called (i.e. ts->context).

This creates the following reference cycle:

ts->context
  └─▶ ctx_vars (HAMT root)
        └─▶ ... HAMT nodes ...
              └─▶ dict  {"__dd_wrapping_context_token__": token}
                    └─▶ token  (PyContextToken)
                          └─▶ tok_ctx  ────────────────▶ ts->context  ⟲

Now, PyContextVar_Set is not atomic. Its simplified CPython implementation is:

static PyObject *
contextvar_set(PyContextVar *var, PyObject *val) {
    PyContext *ts_ctx = ts->context;
    PyObject *new_hamt = _PyHamt_Assoc(ts_ctx->ctx_vars, var, val);
    Py_DECREF(ts_ctx->ctx_vars);   // ← old HAMT root refcount decremented here
    ts_ctx->ctx_vars = new_hamt;
    ...
}

At Py_DECREF(ts_ctx->ctx_vars):

The old HAMT root's refcount drops. If it reaches 0, _Py_Dealloc is called, which calls hamt_tp_dealloc which calls PyObject_GC_UnTrack(old_hamt).
Inside _Py_Dealloc the old HAMT decrefs its children (intermediate nodes).
Those node decrefs cascade. A leaf node that is now only referenced by the old HAMT (not the new one) reaches refcount 0 and is also freed, its memory potentially returned to the OS.
Meanwhile ts_ctx->ctx_vars still points to the (now freed) old root until line 3 of the snippet above executes.
If the Python cyclic GC fires at the wrong moment -- triggered by another allocation during the HAMT rebuild -- it may traverse the cycle above, see the Token's tok_ctx pointing at ts->context, and interfere with refcounts, causing a node to be collected prematurely.
PyObject_GC_UnTrack is then called on a node whose memory is already unmapped which results in SEGV_MAPERR.

Proposed Fix

Store the previous value of _storage in the dict instead of the Token. Restore it with set rather than reset. In other words:

def __enter__(self) -> "BaseWrappingContext":
    prev = self._storage.get()
    self._storage.set({"__dd_wrapping_context_prev__": prev})
    # Token returned by set() is discarded immediately → refcount 0 → freed
    return self

def _pop_storage(self) -> dict[str, t.Any]:
    storage = self._storage.get()
    self._storage.set(storage.pop("__dd_wrapping_context_prev__"))
    return storage

The Token object is now ephemeral: it is returned by set, never stored anywhere, and freed immediately when the local expression is evaluated. Nothing inside the HAMT ever holds a Token, so the cycle is gone.

Correctness

reset(token) and set(prev_value) are equivalent for this use-case:

Both restore _storage to its value before __enter__ was called.
reset() additionally validates that the context hasn't changed since the token was created, raising ValueError if it has. That guard is not needed here because BaseWrappingContext fully controls the enter/exit lifecycle.
Nested and recursive calls continue to work correctly: each __enter__ pushes a new dict that records the prior one; each _pop_storage pops it.

cit-pr-commenter-54b7da · 2026-04-08T16:54:36Z

Codeowners resolved as

ddtrace/internal/wrapping/context.py                                    @DataDog/apm-core-python
releasenotes/notes/internal-contextvar-crash-fix-53e7b7d0797ba090.yaml  @DataDog/apm-python

datadog-datadog-prod-us1 · 2026-04-08T17:04:53Z

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

_{This comment will be updated automatically if new data arrives.

🔗 Commit SHA: 9e9ebbc | Docs | Datadog PR Page | Was this helpful? React with 👍/👎 or give us feedback!}

P403n1x87 · 2026-04-08T17:05:47Z

😱

pr-commenter · 2026-04-08T17:23:34Z

Performance SLOs

Comparing candidate kowalski/fix-internal-crash-in-contextvar (9e9ebbc) with baseline main (56f2d79)

📈 Performance Regressions (2 suites)

📈 iastaspects - 118/118

✅ add_aspect

Time: ✅ 104.429µs (SLO: <130.000µs 📉 -19.7%) vs baseline: +2.1%

Memory: ✅ 43.878MB (SLO: <46.000MB -4.6%) vs baseline: +5.5%

✅ add_inplace_aspect

Time: ✅ 101.563µs (SLO: <130.000µs 📉 -21.9%) vs baseline: -0.8%

Memory: ✅ 43.845MB (SLO: <46.000MB -4.7%) vs baseline: +5.5%

✅ add_inplace_noaspect

Time: ✅ 28.242µs (SLO: <40.000µs 📉 -29.4%) vs baseline: -0.1%

Memory: ✅ 44.008MB (SLO: <46.000MB -4.3%) vs baseline: +5.9%

✅ add_noaspect

Time: ✅ 49.723µs (SLO: <70.000µs 📉 -29.0%) vs baseline: +1.8%

Memory: ✅ 43.846MB (SLO: <46.000MB -4.7%) vs baseline: +5.4%

✅ bytearray_aspect

Time: ✅ 254.377µs (SLO: <400.000µs 📉 -36.4%) vs baseline: -1.7%

Memory: ✅ 43.861MB (SLO: <46.000MB -4.7%) vs baseline: +5.4%

✅ bytearray_extend_aspect

Time: ✅ 648.718µs (SLO: <800.000µs 📉 -18.9%) vs baseline: +0.1%

Memory: ✅ 43.858MB (SLO: <46.000MB -4.7%) vs baseline: +5.1%

✅ bytearray_extend_noaspect

Time: ✅ 265.983µs (SLO: <400.000µs 📉 -33.5%) vs baseline: -1.0%

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

✅ bytearray_noaspect

Time: ✅ 140.861µs (SLO: <300.000µs 📉 -53.0%) vs baseline: -0.2%

Memory: ✅ 43.848MB (SLO: <46.000MB -4.7%) vs baseline: +5.4%

✅ bytes_aspect

Time: ✅ 219.624µs (SLO: <300.000µs 📉 -26.8%) vs baseline: -1.7%

Memory: ✅ 43.876MB (SLO: <46.000MB -4.6%) vs baseline: +5.4%

✅ bytes_noaspect

Time: ✅ 135.826µs (SLO: <200.000µs 📉 -32.1%) vs baseline: -1.1%

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

✅ bytesio_aspect

Time: ✅ 3.799ms (SLO: <5.000ms 📉 -24.0%) vs baseline: -0.6%

Memory: ✅ 43.884MB (SLO: <46.000MB -4.6%) vs baseline: +5.5%

✅ bytesio_noaspect

Time: ✅ 320.535µs (SLO: <420.000µs 📉 -23.7%) vs baseline: -0.2%

Memory: ✅ 43.903MB (SLO: <46.000MB -4.6%) vs baseline: +5.4%

✅ capitalize_aspect

Time: ✅ 88.557µs (SLO: <300.000µs 📉 -70.5%) vs baseline: -0.4%

Memory: ✅ 43.858MB (SLO: <46.000MB -4.7%) vs baseline: +5.3%

✅ capitalize_noaspect

Time: ✅ 254.527µs (SLO: <300.000µs 📉 -15.2%) vs baseline: -1.5%

Memory: ✅ 43.912MB (SLO: <46.000MB -4.5%) vs baseline: +5.5%

✅ casefold_aspect

Time: ✅ 88.034µs (SLO: <500.000µs 📉 -82.4%) vs baseline: -1.0%

Memory: ✅ 43.841MB (SLO: <46.000MB -4.7%) vs baseline: +5.3%

✅ casefold_noaspect

Time: ✅ 313.700µs (SLO: <500.000µs 📉 -37.3%) vs baseline: +0.6%

Memory: ✅ 43.839MB (SLO: <46.000MB -4.7%) vs baseline: +5.1%

✅ decode_aspect

Time: ✅ 87.036µs (SLO: <100.000µs 📉 -13.0%) vs baseline: ~same

Memory: ✅ 43.859MB (SLO: <46.000MB -4.7%) vs baseline: +5.5%

✅ decode_noaspect

Time: ✅ 155.988µs (SLO: <210.000µs 📉 -25.7%) vs baseline: -0.3%

Memory: ✅ 43.813MB (SLO: <46.000MB -4.8%) vs baseline: +5.3%

✅ encode_aspect

Time: ✅ 84.552µs (SLO: <200.000µs 📉 -57.7%) vs baseline: +0.6%

Memory: ✅ 43.922MB (SLO: <46.000MB -4.5%) vs baseline: +5.3%

✅ encode_noaspect

Time: ✅ 143.853µs (SLO: <200.000µs 📉 -28.1%) vs baseline: +0.2%

Memory: ✅ 43.833MB (SLO: <46.000MB -4.7%) vs baseline: +5.2%

✅ format_aspect

Time: ✅ 14.623ms (SLO: <19.200ms 📉 -23.8%) vs baseline: ~same

Memory: ✅ 43.843MB (SLO: <46.000MB -4.7%) vs baseline: +4.9%

✅ format_map_aspect

Time: ✅ 16.383ms (SLO: <21.500ms 📉 -23.8%) vs baseline: -0.4%

Memory: ✅ 43.919MB (SLO: <46.000MB -4.5%) vs baseline: +5.2%

✅ format_map_noaspect

Time: ✅ 385.260µs (SLO: <500.000µs 📉 -22.9%) vs baseline: +3.4%

Memory: ✅ 43.869MB (SLO: <46.000MB -4.6%) vs baseline: +5.2%

✅ format_noaspect

Time: ✅ 308.570µs (SLO: <500.000µs 📉 -38.3%) vs baseline: -0.4%

Memory: ✅ 43.828MB (SLO: <46.000MB -4.7%) vs baseline: +5.3%

✅ index_aspect

Time: ✅ 136.443µs (SLO: <300.000µs 📉 -54.5%) vs baseline: 📈 +10.1%

Memory: ✅ 43.884MB (SLO: <46.000MB -4.6%) vs baseline: +5.1%

✅ index_noaspect

Time: ✅ 40.502µs (SLO: <300.000µs 📉 -86.5%) vs baseline: +0.6%

Memory: ✅ 43.903MB (SLO: <46.000MB -4.6%) vs baseline: +5.6%

✅ join_aspect

Time: ✅ 211.527µs (SLO: <300.000µs 📉 -29.5%) vs baseline: -0.2%

Memory: ✅ 43.846MB (SLO: <46.000MB -4.7%) vs baseline: +5.1%

✅ join_noaspect

Time: ✅ 143.025µs (SLO: <300.000µs 📉 -52.3%) vs baseline: -0.9%

Memory: ✅ 43.819MB (SLO: <46.000MB -4.7%) vs baseline: +5.3%

✅ ljust_aspect

Time: ✅ 576.777µs (SLO: <700.000µs 📉 -17.6%) vs baseline: 📈 +12.9%

Memory: ✅ 43.827MB (SLO: <46.000MB -4.7%) vs baseline: +5.4%

✅ ljust_noaspect

Time: ✅ 253.789µs (SLO: <300.000µs 📉 -15.4%) vs baseline: -2.7%

Memory: ✅ 43.876MB (SLO: <46.000MB -4.6%) vs baseline: +5.5%

✅ lower_aspect

Time: ✅ 299.053µs (SLO: <500.000µs 📉 -40.2%) vs baseline: -3.1%

Memory: ✅ 43.918MB (SLO: <46.000MB -4.5%) vs baseline: +5.5%

✅ lower_noaspect

Time: ✅ 239.499µs (SLO: <300.000µs 📉 -20.2%) vs baseline: -1.3%

Memory: ✅ 43.795MB (SLO: <46.000MB -4.8%) vs baseline: +5.2%

✅ lstrip_aspect

Time: ✅ 0.277ms (SLO: <3.000ms 📉 -90.8%) vs baseline: -1.1%

Memory: ✅ 43.783MB (SLO: <46.000MB -4.8%) vs baseline: +5.0%

✅ lstrip_noaspect

Time: ✅ 0.176ms (SLO: <3.000ms 📉 -94.1%) vs baseline: -2.1%

Memory: ✅ 43.872MB (SLO: <46.000MB -4.6%) vs baseline: +5.2%

✅ modulo_aspect

Time: ✅ 14.310ms (SLO: <18.750ms 📉 -23.7%) vs baseline: ~same

Memory: ✅ 44.012MB (SLO: <46.000MB -4.3%) vs baseline: +5.4%

✅ modulo_aspect_for_bytearray_bytearray

Time: ✅ 14.806ms (SLO: <19.350ms 📉 -23.5%) vs baseline: -0.3%

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

✅ modulo_aspect_for_bytes

Time: ✅ 14.448ms (SLO: <18.900ms 📉 -23.6%) vs baseline: ~same

Memory: ✅ 43.920MB (SLO: <46.000MB -4.5%) vs baseline: +5.5%

✅ modulo_aspect_for_bytes_bytearray

Time: ✅ 14.634ms (SLO: <19.150ms 📉 -23.6%) vs baseline: +0.2%

Memory: ✅ 43.926MB (SLO: <46.000MB -4.5%) vs baseline: +5.4%

✅ modulo_noaspect

Time: ✅ 0.359ms (SLO: <3.000ms 📉 -88.0%) vs baseline: -1.9%

Memory: ✅ 43.939MB (SLO: <46.000MB -4.5%) vs baseline: +5.3%

✅ replace_aspect

Time: ✅ 18.503ms (SLO: <24.000ms 📉 -22.9%) vs baseline: +0.2%

Memory: ✅ 43.944MB (SLO: <46.000MB -4.5%) vs baseline: +5.6%

✅ replace_noaspect

Time: ✅ 284.260µs (SLO: <400.000µs 📉 -28.9%) vs baseline: +0.7%

Memory: ✅ 43.782MB (SLO: <46.000MB -4.8%) vs baseline: +5.2%

✅ repr_aspect

Time: ✅ 322.708µs (SLO: <420.000µs 📉 -23.2%) vs baseline: +0.2%

Memory: ✅ 43.901MB (SLO: <46.000MB -4.6%) vs baseline: +5.3%

✅ repr_noaspect

Time: ✅ 46.959µs (SLO: <90.000µs 📉 -47.8%) vs baseline: -0.5%

Memory: ✅ 43.828MB (SLO: <46.000MB -4.7%) vs baseline: +5.0%

✅ rstrip_aspect

Time: ✅ 387.882µs (SLO: <500.000µs 📉 -22.4%) vs baseline: -1.1%

Memory: ✅ 43.915MB (SLO: <46.000MB -4.5%) vs baseline: +5.2%

✅ rstrip_noaspect

Time: ✅ 183.222µs (SLO: <300.000µs 📉 -38.9%) vs baseline: -1.3%

Memory: ✅ 43.793MB (SLO: <46.000MB -4.8%) vs baseline: +5.4%

✅ slice_aspect

Time: ✅ 185.970µs (SLO: <300.000µs 📉 -38.0%) vs baseline: +1.4%

Memory: ✅ 43.876MB (SLO: <46.000MB -4.6%) vs baseline: +5.4%

✅ slice_noaspect

Time: ✅ 54.410µs (SLO: <90.000µs 📉 -39.5%) vs baseline: +0.7%

Memory: ✅ 43.851MB (SLO: <46.000MB -4.7%) vs baseline: +5.5%

✅ stringio_aspect

Time: ✅ 4.424ms (SLO: <5.000ms 📉 -11.5%) vs baseline: 📈 +14.0%

Memory: ✅ 43.845MB (SLO: <46.000MB -4.7%) vs baseline: +5.5%

✅ stringio_noaspect

Time: ✅ 345.319µs (SLO: <500.000µs 📉 -30.9%) vs baseline: -1.9%

Memory: ✅ 43.775MB (SLO: <46.000MB -4.8%) vs baseline: +5.0%

✅ strip_aspect

Time: ✅ 278.354µs (SLO: <350.000µs 📉 -20.5%) vs baseline: -2.0%

Memory: ✅ 43.793MB (SLO: <46.000MB -4.8%) vs baseline: +5.5%

✅ strip_noaspect

Time: ✅ 177.725µs (SLO: <240.000µs 📉 -25.9%) vs baseline: -1.8%

Memory: ✅ 43.780MB (SLO: <46.000MB -4.8%) vs baseline: +5.0%

✅ swapcase_aspect

Time: ✅ 338.247µs (SLO: <500.000µs 📉 -32.4%) vs baseline: -1.7%

Memory: ✅ 43.861MB (SLO: <46.000MB -4.7%) vs baseline: +5.5%

✅ swapcase_noaspect

Time: ✅ 275.227µs (SLO: <400.000µs 📉 -31.2%) vs baseline: -1.6%

Memory: ✅ 43.861MB (SLO: <46.000MB -4.7%) vs baseline: +5.4%

✅ title_aspect

Time: ✅ 324.126µs (SLO: <500.000µs 📉 -35.2%) vs baseline: -1.8%

Memory: ✅ 43.850MB (SLO: <46.000MB -4.7%) vs baseline: +5.4%

✅ title_noaspect

Time: ✅ 260.521µs (SLO: <400.000µs 📉 -34.9%) vs baseline: -2.2%

Memory: ✅ 43.914MB (SLO: <46.000MB -4.5%) vs baseline: +5.7%

✅ translate_aspect

Time: ✅ 500.523µs (SLO: <700.000µs 📉 -28.5%) vs baseline: -1.5%

Memory: ✅ 43.923MB (SLO: <46.000MB -4.5%) vs baseline: +5.7%

✅ translate_noaspect

Time: ✅ 429.512µs (SLO: <500.000µs 📉 -14.1%) vs baseline: -2.1%

Memory: ✅ 43.889MB (SLO: <46.000MB -4.6%) vs baseline: +5.3%

✅ upper_aspect

Time: ✅ 302.199µs (SLO: <500.000µs 📉 -39.6%) vs baseline: -1.6%

Memory: ✅ 43.921MB (SLO: <46.000MB -4.5%) vs baseline: +5.5%

✅ upper_noaspect

Time: ✅ 237.480µs (SLO: <400.000µs 📉 -40.6%) vs baseline: -1.9%

Memory: ✅ 43.815MB (SLO: <46.000MB -4.8%) vs baseline: +5.2%

📈 iastaspectsospath - 24/24

✅ ospathbasename_aspect

Time: ✅ 522.642µs (SLO: <700.000µs 📉 -25.3%) vs baseline: 📈 +20.3%

Memory: ✅ 43.853MB (SLO: <46.000MB -4.7%) vs baseline: +5.2%

✅ ospathbasename_noaspect

Time: ✅ 432.612µs (SLO: <700.000µs 📉 -38.2%) vs baseline: -2.4%

Memory: ✅ 43.944MB (SLO: <46.000MB -4.5%) vs baseline: +5.5%

✅ ospathjoin_aspect

Time: ✅ 627.195µs (SLO: <700.000µs 📉 -10.4%) vs baseline: -1.3%

Memory: ✅ 43.859MB (SLO: <46.000MB -4.7%) vs baseline: +5.2%

✅ ospathjoin_noaspect

Time: ✅ 644.732µs (SLO: <700.000µs -7.9%) vs baseline: -0.5%

Memory: ✅ 43.807MB (SLO: <46.000MB -4.8%) vs baseline: +5.2%

✅ ospathnormcase_aspect

Time: ✅ 354.423µs (SLO: <700.000µs 📉 -49.4%) vs baseline: +0.7%

Memory: ✅ 43.819MB (SLO: <46.000MB -4.7%) vs baseline: +5.3%

✅ ospathnormcase_noaspect

Time: ✅ 359.388µs (SLO: <700.000µs 📉 -48.7%) vs baseline: -2.7%

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

✅ ospathsplit_aspect

Time: ✅ 483.518µs (SLO: <700.000µs 📉 -30.9%) vs baseline: -2.9%

Memory: ✅ 43.792MB (SLO: <46.000MB -4.8%) vs baseline: +5.1%

✅ ospathsplit_noaspect

Time: ✅ 499.945µs (SLO: <700.000µs 📉 -28.6%) vs baseline: -0.9%

Memory: ✅ 43.853MB (SLO: <46.000MB -4.7%) vs baseline: +5.6%

✅ ospathsplitdrive_aspect

Time: ✅ 376.408µs (SLO: <700.000µs 📉 -46.2%) vs baseline: -0.8%

Memory: ✅ 43.764MB (SLO: <46.000MB -4.9%) vs baseline: +5.2%

✅ ospathsplitdrive_noaspect

Time: ✅ 72.578µs (SLO: <700.000µs 📉 -89.6%) vs baseline: -0.3%

Memory: ✅ 43.793MB (SLO: <46.000MB -4.8%) vs baseline: +5.2%

✅ ospathsplitext_aspect

Time: ✅ 467.712µs (SLO: <700.000µs 📉 -33.2%) vs baseline: +1.3%

Memory: ✅ 43.886MB (SLO: <46.000MB -4.6%) vs baseline: +5.1%

✅ ospathsplitext_noaspect

Time: ✅ 469.795µs (SLO: <700.000µs 📉 -32.9%) vs baseline: -0.1%

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

🟡 Near SLO Breach (5 suites)

🟡 djangosimple - 30/30

✅ appsec

Time: ✅ 19.820ms (SLO: <22.300ms 📉 -11.1%) vs baseline: -0.2%

Memory: ✅ 69.334MB (SLO: <73.500MB -5.7%) vs baseline: +5.1%

✅ exception-replay-enabled

Time: ✅ 1.341ms (SLO: <1.450ms -7.5%) vs baseline: +0.1%

Memory: ✅ 67.574MB (SLO: <71.500MB -5.5%) vs baseline: +5.2%

✅ iast

Time: ✅ 19.864ms (SLO: <22.250ms 📉 -10.7%) vs baseline: +0.2%

Memory: ✅ 69.354MB (SLO: <75.000MB -7.5%) vs baseline: +5.3%

✅ profiler

Time: ✅ 15.127ms (SLO: <16.550ms -8.6%) vs baseline: ~same

Memory: ✅ 60.145MB (SLO: <61.000MB 🟡 -1.4%) vs baseline: +5.4%

✅ resource-renaming

Time: ✅ 19.730ms (SLO: <21.750ms -9.3%) vs baseline: -0.1%

Memory: ✅ 69.255MB (SLO: <73.500MB -5.8%) vs baseline: +5.1%

✅ span-code-origin

Time: ✅ 20.225ms (SLO: <28.200ms 📉 -28.3%) vs baseline: +1.4%

Memory: ✅ 69.394MB (SLO: <75.000MB -7.5%) vs baseline: +5.1%

✅ tracer

Time: ✅ 19.856ms (SLO: <21.750ms -8.7%) vs baseline: +0.2%

Memory: ✅ 69.383MB (SLO: <75.000MB -7.5%) vs baseline: +5.2%

✅ tracer-and-profiler

Time: ✅ 21.136ms (SLO: <23.500ms 📉 -10.1%) vs baseline: ~same

Memory: ✅ 71.280MB (SLO: <75.000MB -5.0%) vs baseline: +5.2%

✅ tracer-dont-create-db-spans

Time: ✅ 19.856ms (SLO: <21.500ms -7.6%) vs baseline: -0.4%

Memory: ✅ 69.403MB (SLO: <75.000MB -7.5%) vs baseline: +5.0%

✅ tracer-minimal

Time: ✅ 16.906ms (SLO: <17.500ms -3.4%) vs baseline: ~same

Memory: ✅ 69.275MB (SLO: <75.000MB -7.6%) vs baseline: +5.4%

✅ tracer-native

Time: ✅ 19.807ms (SLO: <21.750ms -8.9%) vs baseline: +0.7%

Memory: ✅ 69.383MB (SLO: <72.500MB -4.3%) vs baseline: +5.1%

✅ tracer-no-caches

Time: ✅ 17.684ms (SLO: <19.650ms 📉 -10.0%) vs baseline: -0.2%

Memory: ✅ 69.344MB (SLO: <75.000MB -7.5%) vs baseline: +5.5%

✅ tracer-no-databases

Time: ✅ 19.478ms (SLO: <20.100ms -3.1%) vs baseline: +0.4%

Memory: ✅ 69.304MB (SLO: <75.000MB -7.6%) vs baseline: +5.5%

✅ tracer-no-middleware

Time: ✅ 19.542ms (SLO: <21.500ms -9.1%) vs baseline: -0.2%

Memory: ✅ 69.324MB (SLO: <75.000MB -7.6%) vs baseline: +5.2%

✅ tracer-no-templates

Time: ✅ 19.759ms (SLO: <22.000ms 📉 -10.2%) vs baseline: +1.1%

Memory: ✅ 69.370MB (SLO: <73.500MB -5.6%) vs baseline: +5.2%

🟡 otelspan - 22/22

✅ add-event

Time: ✅ 40.003ms (SLO: <47.150ms 📉 -15.2%) vs baseline: -0.6%

Memory: ✅ 41.300MB (SLO: <47.000MB 📉 -12.1%) vs baseline: +5.6%

✅ add-metrics

Time: ✅ 233.958ms (SLO: <344.800ms 📉 -32.1%) vs baseline: -0.5%

Memory: ✅ 45.671MB (SLO: <47.500MB -3.9%) vs baseline: +5.2%

✅ add-tags

Time: ✅ 277.502ms (SLO: <330.000ms 📉 -15.9%) vs baseline: +3.2%

Memory: ✅ 45.650MB (SLO: <47.500MB -3.9%) vs baseline: +5.3%

✅ get-context

Time: ✅ 82.980ms (SLO: <92.350ms 📉 -10.1%) vs baseline: -0.4%

Memory: ✅ 41.563MB (SLO: <46.500MB 📉 -10.6%) vs baseline: +5.2%

✅ is-recording

Time: ✅ 38.441ms (SLO: <44.500ms 📉 -13.6%) vs baseline: -0.7%

Memory: ✅ 41.114MB (SLO: <47.500MB 📉 -13.4%) vs baseline: +5.3%

✅ record-exception

Time: ✅ 60.018ms (SLO: <67.650ms 📉 -11.3%) vs baseline: ~same

Memory: ✅ 41.591MB (SLO: <47.000MB 📉 -11.5%) vs baseline: +5.1%

✅ set-status

Time: ✅ 44.400ms (SLO: <50.400ms 📉 -11.9%) vs baseline: ~same

Memory: ✅ 41.125MB (SLO: <47.000MB 📉 -12.5%) vs baseline: +5.4%

✅ start

Time: ✅ 39.458ms (SLO: <44.500ms 📉 -11.3%) vs baseline: +3.9%

Memory: ✅ 41.177MB (SLO: <47.000MB 📉 -12.4%) vs baseline: +5.4%

✅ start-finish

Time: ✅ 89.533ms (SLO: <91.000ms 🟡 -1.6%) vs baseline: +0.3%

Memory: ✅ 38.633MB (SLO: <46.500MB 📉 -16.9%) vs baseline: +5.0%

✅ start-finish-telemetry

Time: ✅ 91.187ms (SLO: <92.000ms 🟡 -0.9%) vs baseline: +0.5%

Memory: ✅ 38.751MB (SLO: <46.500MB 📉 -16.7%) vs baseline: +5.3%

✅ update-name

Time: ✅ 39.392ms (SLO: <45.150ms 📉 -12.8%) vs baseline: -0.6%

Memory: ✅ 41.010MB (SLO: <47.000MB 📉 -12.7%) vs baseline: +4.8%

🟡 recursivecomputation - 8/8

✅ deep

Time: ✅ 312.932ms (SLO: <320.950ms -2.5%) vs baseline: -0.4%

Memory: ✅ 37.415MB (SLO: <38.750MB -3.4%) vs baseline: +5.2%

✅ deep-profiled

Time: ✅ 327.417ms (SLO: <359.150ms -8.8%) vs baseline: -0.4%

Memory: ✅ 43.706MB (SLO: <46.000MB -5.0%) vs baseline: +5.2%

✅ medium

Time: ✅ 7.324ms (SLO: <7.400ms 🟡 -1.0%) vs baseline: -0.5%

Memory: ✅ 36.255MB (SLO: <38.000MB -4.6%) vs baseline: +5.4%

✅ shallow

Time: ✅ 1.034ms (SLO: <1.050ms 🟡 -1.5%) vs baseline: +1.6%

Memory: ✅ 36.235MB (SLO: <38.000MB -4.6%) vs baseline: +5.5%

🟡 samplingrules - 8/8

✅ average_match

Time: ✅ 168.566µs (SLO: <290.000µs 📉 -41.9%) vs baseline: +0.2%

Memory: ✅ 36.137MB (SLO: <38.000MB -4.9%) vs baseline: +5.3%

✅ high_match

Time: ✅ 214.181µs (SLO: <480.000µs 📉 -55.4%) vs baseline: -0.3%

Memory: ✅ 36.156MB (SLO: <38.000MB -4.9%) vs baseline: +5.2%

✅ low_match

Time: ✅ 119.777µs (SLO: <120.000µs 🟡 -0.2%) vs baseline: +0.1%

Memory: ✅ 701.607MB (SLO: <780.000MB 📉 -10.1%) vs baseline: +4.9%

✅ very_low_match

Time: ✅ 3.118ms (SLO: <8.500ms 📉 -63.3%) vs baseline: +0.2%

Memory: ✅ 78.738MB (SLO: <85.000MB -7.4%) vs baseline: +5.3%

🟡 span - 26/26

✅ add-event

Time: ✅ 19.074ms (SLO: <22.500ms 📉 -15.2%) vs baseline: -0.7%

Memory: ✅ 38.357MB (SLO: <53.000MB 📉 -27.6%) vs baseline: +5.3%

✅ add-metrics

Time: ✅ 88.623ms (SLO: <93.500ms -5.2%) vs baseline: +0.8%

Memory: ✅ 42.861MB (SLO: <53.000MB 📉 -19.1%) vs baseline: +5.2%

✅ add-tags

Time: ✅ 147.426ms (SLO: <155.000ms -4.9%) vs baseline: ~same

Memory: ✅ 42.885MB (SLO: <53.000MB 📉 -19.1%) vs baseline: +5.1%

✅ get-context

Time: ✅ 18.241ms (SLO: <20.500ms 📉 -11.0%) vs baseline: -0.5%

Memory: ✅ 38.324MB (SLO: <53.000MB 📉 -27.7%) vs baseline: +5.4%

✅ is-recording

Time: ✅ 18.293ms (SLO: <20.500ms 📉 -10.8%) vs baseline: -1.4%

Memory: ✅ 38.358MB (SLO: <53.000MB 📉 -27.6%) vs baseline: +5.4%

✅ record-exception

Time: ✅ 37.856ms (SLO: <41.000ms -7.7%) vs baseline: -0.2%

Memory: ✅ 38.812MB (SLO: <53.000MB 📉 -26.8%) vs baseline: +5.6%

✅ set-status

Time: ✅ 20.176ms (SLO: <22.000ms -8.3%) vs baseline: -0.3%

Memory: ✅ 38.373MB (SLO: <53.000MB 📉 -27.6%) vs baseline: +5.7%

✅ start

Time: ✅ 19.190ms (SLO: <20.500ms -6.4%) vs baseline: +4.2%

Memory: ✅ 38.345MB (SLO: <53.000MB 📉 -27.7%) vs baseline: +5.4%

✅ start-finish

Time: ✅ 57.382ms (SLO: <58.000ms 🟡 -1.1%) vs baseline: -0.8%

Memory: ✅ 36.176MB (SLO: <38.000MB -4.8%) vs baseline: +5.4%

✅ start-finish-telemetry

Time: ✅ 58.616ms (SLO: <60.000ms -2.3%) vs baseline: -0.5%

Memory: ✅ 36.255MB (SLO: <38.000MB -4.6%) vs baseline: +5.4%

✅ start-finish-traceid128

Time: ✅ 59.986ms (SLO: <62.000ms -3.2%) vs baseline: -0.5%

Memory: ✅ 36.196MB (SLO: <38.000MB -4.7%) vs baseline: +5.4%

✅ start-traceid128

Time: ✅ 18.225ms (SLO: <22.500ms 📉 -19.0%) vs baseline: -1.0%

Memory: ✅ 38.330MB (SLO: <53.000MB 📉 -27.7%) vs baseline: +5.7%

✅ update-name

Time: ✅ 18.644ms (SLO: <22.000ms 📉 -15.3%) vs baseline: -1.5%

Memory: ✅ 38.343MB (SLO: <53.000MB 📉 -27.7%) vs baseline: +5.2%

⚠️ Unstable Tests (2 suites)

⚠️

coreapiscenario - 10/10 (1 unstable)

⚠️ context_with_data_listeners

Time: ⚠️ 13.573µs (SLO: <20.000µs 📉 -32.1%) vs baseline: -0.2%

Memory: ✅ 36.235MB (SLO: <38.000MB -4.6%) vs baseline: +5.4%

✅ context_with_data_no_listeners

Time: ✅ 3.621µs (SLO: <10.000µs 📉 -63.8%) vs baseline: -0.4%

Memory: ✅ 36.215MB (SLO: <38.000MB -4.7%) vs baseline: +5.4%

✅ get_item_exists

Time: ✅ 0.579µs (SLO: <10.000µs 📉 -94.2%) vs baseline: -0.9%

Memory: ✅ 36.235MB (SLO: <38.000MB -4.6%) vs baseline: +5.3%

✅ get_item_missing

Time: ✅ 0.642µs (SLO: <10.000µs 📉 -93.6%) vs baseline: +0.5%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +5.5%

✅ set_item

Time: ✅ 24.641µs (SLO: <30.000µs 📉 -17.9%) vs baseline: +0.7%

Memory: ✅ 36.176MB (SLO: <38.000MB -4.8%) vs baseline: +5.4%

⚠️

packagesupdateimporteddependencies - 24/24 (1 unstable)

✅ import_many

Time: ✅ 155.224µs (SLO: <170.000µs -8.7%) vs baseline: -0.7%

Memory: ✅ 40.700MB (SLO: <46.000MB 📉 -11.5%) vs baseline: +5.7%

✅ import_many_cached

Time: ✅ 121.673µs (SLO: <130.000µs -6.4%) vs baseline: +0.3%

Memory: ✅ 40.409MB (SLO: <46.000MB 📉 -12.2%) vs baseline: +4.5%

✅ import_many_stdlib

Time: ✅ 0.803ms (SLO: <1.750ms 📉 -54.1%) vs baseline: +0.6%

Memory: ✅ 40.565MB (SLO: <46.000MB 📉 -11.8%) vs baseline: +5.0%

⚠️ import_many_stdlib_cached

Time: ⚠️ 0.187ms (SLO: <1.100ms 📉 -83.0%) vs baseline: +0.3%

Memory: ✅ 40.591MB (SLO: <46.000MB 📉 -11.8%) vs baseline: +6.1%

✅ import_many_unknown

Time: ✅ 835.111µs (SLO: <890.000µs -6.2%) vs baseline: -0.3%

Memory: ✅ 40.747MB (SLO: <46.000MB 📉 -11.4%) vs baseline: +4.8%

✅ import_many_unknown_cached

Time: ✅ 792.503µs (SLO: <870.000µs -8.9%) vs baseline: -0.1%

Memory: ✅ 40.791MB (SLO: <46.000MB 📉 -11.3%) vs baseline: +5.3%

✅ import_one

Time: ✅ 19.864µs (SLO: <30.000µs 📉 -33.8%) vs baseline: +1.2%

Memory: ✅ 40.332MB (SLO: <46.000MB 📉 -12.3%) vs baseline: +5.1%

✅ import_one_cache

Time: ✅ 6.263µs (SLO: <10.000µs 📉 -37.4%) vs baseline: -0.8%

Memory: ✅ 40.544MB (SLO: <46.000MB 📉 -11.9%) vs baseline: +4.9%

✅ import_one_stdlib

Time: ✅ 18.958µs (SLO: <20.000µs -5.2%) vs baseline: +1.3%

Memory: ✅ 40.506MB (SLO: <46.000MB 📉 -11.9%) vs baseline: +5.2%

✅ import_one_stdlib_cache

Time: ✅ 6.324µs (SLO: <10.000µs 📉 -36.8%) vs baseline: +0.4%

Memory: ✅ 40.846MB (SLO: <46.000MB 📉 -11.2%) vs baseline: +6.0%

✅ import_one_unknown

Time: ✅ 45.638µs (SLO: <50.000µs -8.7%) vs baseline: +0.9%

Memory: ✅ 40.526MB (SLO: <46.000MB 📉 -11.9%) vs baseline: +5.8%

✅ import_one_unknown_cache

Time: ✅ 6.320µs (SLO: <10.000µs 📉 -36.8%) vs baseline: +0.8%

Memory: ✅ 40.878MB (SLO: <43.000MB -4.9%) vs baseline: +6.3%

✅ All Tests Passing (16 suites)

✅ codeprovenancefork - 2/2

✅ fork-10

Time: ✅ 2.187s (SLO: <2.300s -4.9%) vs baseline: +2.8%

Memory: ✅ 17.360MB (SLO: <20.000MB 📉 -13.2%) vs baseline: +4.5%

✅ errortrackingdjangosimple - 6/6

✅ errortracking-enabled-all

Time: ✅ 16.498ms (SLO: <19.850ms 📉 -16.9%) vs baseline: +0.2%

Memory: ✅ 68.891MB (SLO: <75.000MB -8.1%) vs baseline: +5.0%

✅ errortracking-enabled-user

Time: ✅ 16.420ms (SLO: <19.400ms 📉 -15.4%) vs baseline: +0.1%

Memory: ✅ 68.891MB (SLO: <75.000MB -8.1%) vs baseline: +5.1%

✅ tracer-enabled

Time: ✅ 16.422ms (SLO: <19.450ms 📉 -15.6%) vs baseline: -0.1%

Memory: ✅ 68.852MB (SLO: <75.000MB -8.2%) vs baseline: +4.9%

✅ errortrackingflasksqli - 6/6

✅ errortracking-enabled-all

Time: ✅ 2.108ms (SLO: <2.300ms -8.4%) vs baseline: +0.5%

Memory: ✅ 56.271MB (SLO: <60.000MB -6.2%) vs baseline: +4.9%

✅ errortracking-enabled-user

Time: ✅ 2.122ms (SLO: <2.250ms -5.7%) vs baseline: +0.7%

Memory: ✅ 56.104MB (SLO: <60.000MB -6.5%) vs baseline: +4.6%

✅ tracer-enabled

Time: ✅ 2.112ms (SLO: <2.300ms -8.2%) vs baseline: +0.6%

Memory: ✅ 56.152MB (SLO: <60.000MB -6.4%) vs baseline: +4.7%

✅ flasksimple - 18/18

✅ appsec-get

Time: ✅ 3.390ms (SLO: <4.750ms 📉 -28.6%) vs baseline: -0.4%

Memory: ✅ 56.567MB (SLO: <66.500MB 📉 -14.9%) vs baseline: +5.6%

✅ appsec-post

Time: ✅ 2.889ms (SLO: <6.750ms 📉 -57.2%) vs baseline: +0.2%

Memory: ✅ 56.527MB (SLO: <66.500MB 📉 -15.0%) vs baseline: +5.5%

✅ appsec-telemetry

Time: ✅ 3.406ms (SLO: <4.750ms 📉 -28.3%) vs baseline: +0.9%

Memory: ✅ 56.486MB (SLO: <66.500MB 📉 -15.1%) vs baseline: +5.4%

✅ debugger

Time: ✅ 1.883ms (SLO: <2.000ms -5.8%) vs baseline: ~same

Memory: ✅ 49.390MB (SLO: <51.500MB -4.1%) vs baseline: +5.9%

✅ iast-get

Time: ✅ 1.869ms (SLO: <2.000ms -6.6%) vs baseline: -0.1%

Memory: ✅ 46.066MB (SLO: <49.000MB -6.0%) vs baseline: +5.9%

✅ profiler

Time: ✅ 1.907ms (SLO: <2.100ms -9.2%) vs baseline: -0.1%

Memory: ✅ 52.005MB (SLO: <53.500MB -2.8%) vs baseline: +5.9%

✅ resource-renaming

Time: ✅ 3.365ms (SLO: <3.650ms -7.8%) vs baseline: +0.2%

Memory: ✅ 56.567MB (SLO: <60.000MB -5.7%) vs baseline: +5.4%

✅ tracer

Time: ✅ 3.380ms (SLO: <3.650ms -7.4%) vs baseline: ~same

Memory: ✅ 56.586MB (SLO: <60.000MB -5.7%) vs baseline: +5.6%

✅ tracer-native

Time: ✅ 3.375ms (SLO: <3.650ms -7.5%) vs baseline: -0.1%

Memory: ✅ 56.566MB (SLO: <60.000MB -5.7%) vs baseline: +5.5%

✅ flasksqli - 6/6

✅ appsec-enabled

Time: ✅ 2.102ms (SLO: <4.200ms 📉 -49.9%) vs baseline: ~same

Memory: ✅ 56.345MB (SLO: <66.000MB 📉 -14.6%) vs baseline: +5.0%

✅ iast-enabled

Time: ✅ 2.112ms (SLO: <2.800ms 📉 -24.6%) vs baseline: +0.1%

Memory: ✅ 56.320MB (SLO: <62.500MB -9.9%) vs baseline: +5.0%

✅ tracer-enabled

Time: ✅ 2.099ms (SLO: <2.250ms -6.7%) vs baseline: ~same

Memory: ✅ 56.324MB (SLO: <60.000MB -6.1%) vs baseline: +4.9%

✅ forktime - 4/4

✅ baseline

Time: ✅ 1.923ms (SLO: <3.000ms 📉 -35.9%) vs baseline: +4.2%

Memory: ✅ 29.295MB (SLO: <33.000MB 📉 -11.2%) vs baseline: +4.9%

✅ configured

Time: ✅ 10.205ms (SLO: <13.000ms 📉 -21.5%) vs baseline: +0.1%

Memory: ✅ 56.478MB (SLO: <60.000MB -5.9%) vs baseline: +5.8%

✅ httppropagationextract - 60/60

✅ all_styles_all_headers

Time: ✅ 80.673µs (SLO: <100.000µs 📉 -19.3%) vs baseline: +4.9%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +5.2%

✅ b3_headers

Time: ✅ 12.792µs (SLO: <20.000µs 📉 -36.0%) vs baseline: ~same

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +5.3%

✅ b3_single_headers

Time: ✅ 11.949µs (SLO: <20.000µs 📉 -40.3%) vs baseline: +1.1%

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

✅ datadog_tracecontext_tracestate_not_propagated_on_trace_id_no_match

Time: ✅ 60.658µs (SLO: <80.000µs 📉 -24.2%) vs baseline: +0.8%

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

✅ datadog_tracecontext_tracestate_propagated_on_trace_id_match

Time: ✅ 63.935µs (SLO: <80.000µs 📉 -20.1%) vs baseline: +0.5%

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +5.4%

✅ empty_headers

Time: ✅ 1.310µs (SLO: <10.000µs 📉 -86.9%) vs baseline: +0.1%

Memory: ✅ 36.215MB (SLO: <38.000MB -4.7%) vs baseline: +5.3%

✅ full_t_id_datadog_headers

Time: ✅ 21.752µs (SLO: <30.000µs 📉 -27.5%) vs baseline: +0.6%

Memory: ✅ 36.333MB (SLO: <38.000MB -4.4%) vs baseline: +5.4%

✅ invalid_priority_header

Time: ✅ 5.921µs (SLO: <10.000µs 📉 -40.8%) vs baseline: +0.1%

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

✅ invalid_span_id_header

Time: ✅ 5.921µs (SLO: <10.000µs 📉 -40.8%) vs baseline: ~same

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

✅ invalid_tags_header

Time: ✅ 5.949µs (SLO: <10.000µs 📉 -40.5%) vs baseline: +0.7%

Memory: ✅ 36.235MB (SLO: <38.000MB -4.6%) vs baseline: +5.1%

✅ invalid_trace_id_header

Time: ✅ 5.877µs (SLO: <10.000µs 📉 -41.2%) vs baseline: +0.3%

Memory: ✅ 36.235MB (SLO: <38.000MB -4.6%) vs baseline: +5.4%

✅ large_header_no_matches

Time: ✅ 27.051µs (SLO: <30.000µs -9.8%) vs baseline: -0.5%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +5.1%

✅ large_valid_headers_all

Time: ✅ 28.063µs (SLO: <40.000µs 📉 -29.8%) vs baseline: ~same

Memory: ✅ 36.294MB (SLO: <38.000MB -4.5%) vs baseline: +5.4%

✅ medium_header_no_matches

Time: ✅ 9.282µs (SLO: <20.000µs 📉 -53.6%) vs baseline: -0.5%

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

✅ medium_valid_headers_all

Time: ✅ 10.675µs (SLO: <20.000µs 📉 -46.6%) vs baseline: -0.5%

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

✅ none_propagation_style

Time: ✅ 1.394µs (SLO: <10.000µs 📉 -86.1%) vs baseline: -0.9%

Memory: ✅ 36.255MB (SLO: <38.000MB -4.6%) vs baseline: +5.1%

✅ tracecontext_headers

Time: ✅ 32.871µs (SLO: <40.000µs 📉 -17.8%) vs baseline: +0.6%

Memory: ✅ 36.215MB (SLO: <38.000MB -4.7%) vs baseline: +4.9%

✅ valid_headers_all

Time: ✅ 5.930µs (SLO: <10.000µs 📉 -40.7%) vs baseline: +0.2%

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +5.5%

✅ valid_headers_basic

Time: ✅ 5.507µs (SLO: <10.000µs 📉 -44.9%) vs baseline: -0.4%

Memory: ✅ 36.196MB (SLO: <38.000MB -4.7%) vs baseline: +5.3%

✅ wsgi_empty_headers

Time: ✅ 1.321µs (SLO: <10.000µs 📉 -86.8%) vs baseline: +0.8%

Memory: ✅ 36.215MB (SLO: <38.000MB -4.7%) vs baseline: +4.9%

✅ wsgi_invalid_priority_header

Time: ✅ 5.989µs (SLO: <10.000µs 📉 -40.1%) vs baseline: -0.4%

Memory: ✅ 36.255MB (SLO: <38.000MB -4.6%) vs baseline: +5.1%

✅ wsgi_invalid_span_id_header

Time: ✅ 1.306µs (SLO: <10.000µs 📉 -86.9%) vs baseline: -0.2%

Memory: ✅ 36.333MB (SLO: <38.000MB -4.4%) vs baseline: +5.6%

✅ wsgi_invalid_tags_header

Time: ✅ 5.974µs (SLO: <10.000µs 📉 -40.3%) vs baseline: ~same

Memory: ✅ 36.333MB (SLO: <38.000MB -4.4%) vs baseline: +5.4%

✅ wsgi_invalid_trace_id_header

Time: ✅ 5.947µs (SLO: <10.000µs 📉 -40.5%) vs baseline: +0.1%

Memory: ✅ 36.255MB (SLO: <38.000MB -4.6%) vs baseline: +5.1%

✅ wsgi_large_header_no_matches

Time: ✅ 28.054µs (SLO: <40.000µs 📉 -29.9%) vs baseline: -0.1%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +5.4%

✅ wsgi_large_valid_headers_all

Time: ✅ 29.215µs (SLO: <40.000µs 📉 -27.0%) vs baseline: ~same

Memory: ✅ 36.196MB (SLO: <38.000MB -4.7%) vs baseline: +4.9%

✅ wsgi_medium_header_no_matches

Time: ✅ 9.506µs (SLO: <20.000µs 📉 -52.5%) vs baseline: -0.2%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +5.5%

✅ wsgi_medium_valid_headers_all

Time: ✅ 11.066µs (SLO: <20.000µs 📉 -44.7%) vs baseline: +0.6%

Memory: ✅ 36.235MB (SLO: <38.000MB -4.6%) vs baseline: +5.1%

✅ wsgi_valid_headers_all

Time: ✅ 5.962µs (SLO: <10.000µs 📉 -40.4%) vs baseline: -1.0%

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

✅ wsgi_valid_headers_basic

Time: ✅ 5.549µs (SLO: <10.000µs 📉 -44.5%) vs baseline: +0.2%

Memory: ✅ 36.294MB (SLO: <38.000MB -4.5%) vs baseline: +5.3%

✅ httppropagationinject - 16/16

✅ ids_only

Time: ✅ 20.943µs (SLO: <30.000µs 📉 -30.2%) vs baseline: +4.4%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +5.3%

✅ with_all

Time: ✅ 27.195µs (SLO: <40.000µs 📉 -32.0%) vs baseline: +0.7%

Memory: ✅ 36.137MB (SLO: <38.000MB -4.9%) vs baseline: +4.8%

✅ with_dd_origin

Time: ✅ 23.826µs (SLO: <30.000µs 📉 -20.6%) vs baseline: -0.2%

Memory: ✅ 36.294MB (SLO: <38.000MB -4.5%) vs baseline: +5.4%

✅ with_priority_and_origin

Time: ✅ 23.344µs (SLO: <40.000µs 📉 -41.6%) vs baseline: +0.3%

Memory: ✅ 36.235MB (SLO: <38.000MB -4.6%) vs baseline: +5.0%

✅ with_sampling_priority

Time: ✅ 20.097µs (SLO: <30.000µs 📉 -33.0%) vs baseline: ~same

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

✅ with_tags

Time: ✅ 25.399µs (SLO: <40.000µs 📉 -36.5%) vs baseline: +1.1%

Memory: ✅ 36.255MB (SLO: <38.000MB -4.6%) vs baseline: +5.1%

✅ with_tags_invalid

Time: ✅ 26.709µs (SLO: <40.000µs 📉 -33.2%) vs baseline: +0.3%

Memory: ✅ 36.294MB (SLO: <38.000MB -4.5%) vs baseline: +5.5%

✅ with_tags_max_size

Time: ✅ 25.684µs (SLO: <40.000µs 📉 -35.8%) vs baseline: +0.2%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +5.2%

✅ iastaspectssplit - 12/12

✅ rsplit_aspect

Time: ✅ 161.189µs (SLO: <250.000µs 📉 -35.5%) vs baseline: +4.6%

Memory: ✅ 43.851MB (SLO: <46.000MB -4.7%) vs baseline: +5.3%

✅ rsplit_noaspect

Time: ✅ 159.361µs (SLO: <250.000µs 📉 -36.3%) vs baseline: +0.2%

Memory: ✅ 43.844MB (SLO: <46.000MB -4.7%) vs baseline: +5.4%

✅ split_aspect

Time: ✅ 153.042µs (SLO: <250.000µs 📉 -38.8%) vs baseline: +1.7%

Memory: ✅ 43.826MB (SLO: <46.000MB -4.7%) vs baseline: +5.4%

✅ split_noaspect

Time: ✅ 159.486µs (SLO: <250.000µs 📉 -36.2%) vs baseline: +2.1%

Memory: ✅ 43.832MB (SLO: <46.000MB -4.7%) vs baseline: +5.5%

✅ splitlines_aspect

Time: ✅ 152.676µs (SLO: <250.000µs 📉 -38.9%) vs baseline: +4.4%

Memory: ✅ 43.795MB (SLO: <46.000MB -4.8%) vs baseline: +5.3%

✅ splitlines_noaspect

Time: ✅ 157.738µs (SLO: <250.000µs 📉 -36.9%) vs baseline: +4.8%

Memory: ✅ 43.848MB (SLO: <46.000MB -4.7%) vs baseline: +5.3%

✅ iastpropagation - 8/8

✅ no-propagation

Time: ✅ 48.018µs (SLO: <60.000µs 📉 -20.0%) vs baseline: +0.1%

Memory: ✅ 39.892MB (SLO: <42.000MB -5.0%) vs baseline: +4.8%

✅ propagation_enabled

Time: ✅ 136.591µs (SLO: <190.000µs 📉 -28.1%) vs baseline: +1.3%

Memory: ✅ 39.951MB (SLO: <42.000MB -4.9%) vs baseline: +5.2%

✅ propagation_enabled_100

Time: ✅ 1.583ms (SLO: <2.300ms 📉 -31.2%) vs baseline: +2.0%

Memory: ✅ 39.911MB (SLO: <42.000MB -5.0%) vs baseline: +5.1%

✅ propagation_enabled_1000

Time: ✅ 28.999ms (SLO: <34.550ms 📉 -16.1%) vs baseline: -0.4%

Memory: ✅ 39.951MB (SLO: <42.000MB -4.9%) vs baseline: +5.2%

✅ otelsdkspan - 24/24

✅ add-event

Time: ✅ 40.741ms (SLO: <42.000ms -3.0%) vs baseline: +0.7%

Memory: ✅ 38.712MB (SLO: <40.750MB -5.0%) vs baseline: +5.4%

✅ add-link

Time: ✅ 36.359ms (SLO: <38.550ms -5.7%) vs baseline: -0.4%

Memory: ✅ 38.869MB (SLO: <40.750MB -4.6%) vs baseline: +6.1%

✅ add-metrics

Time: ✅ 220.685ms (SLO: <232.000ms -4.9%) vs baseline: +0.5%

Memory: ✅ 38.850MB (SLO: <40.750MB -4.7%) vs baseline: +5.8%

✅ add-tags

Time: ✅ 211.765ms (SLO: <221.600ms -4.4%) vs baseline: -1.0%

Memory: ✅ 38.987MB (SLO: <40.750MB -4.3%) vs baseline: +5.5%

✅ get-context

Time: ✅ 29.218ms (SLO: <31.300ms -6.7%) vs baseline: +0.9%

Memory: ✅ 38.673MB (SLO: <40.750MB -5.1%) vs baseline: +4.9%

✅ is-recording

Time: ✅ 29.284ms (SLO: <31.000ms -5.5%) vs baseline: -0.4%

Memory: ✅ 38.594MB (SLO: <40.750MB -5.3%) vs baseline: +4.8%

✅ record-exception

Time: ✅ 63.338ms (SLO: <65.850ms -3.8%) vs baseline: +0.1%

Memory: ✅ 39.086MB (SLO: <40.750MB -4.1%) vs baseline: +6.2%

✅ set-status

Time: ✅ 32.044ms (SLO: <34.150ms -6.2%) vs baseline: -0.1%

Memory: ✅ 39.066MB (SLO: <40.750MB -4.1%) vs baseline: +6.2%

✅ start

Time: ✅ 29.358ms (SLO: <30.150ms -2.6%) vs baseline: +1.9%

Memory: ✅ 38.732MB (SLO: <40.750MB -5.0%) vs baseline: +5.4%

✅ start-finish

Time: ✅ 34.120ms (SLO: <35.350ms -3.5%) vs baseline: ~same

Memory: ✅ 38.810MB (SLO: <40.750MB -4.8%) vs baseline: +5.2%

✅ start-finish-telemetry

Time: ✅ 34.170ms (SLO: <35.450ms -3.6%) vs baseline: +0.8%

Memory: ✅ 39.066MB (SLO: <40.750MB -4.1%) vs baseline: +6.1%

✅ update-name

Time: ✅ 31.048ms (SLO: <33.400ms -7.0%) vs baseline: +0.5%

Memory: ✅ 38.751MB (SLO: <40.750MB -4.9%) vs baseline: +5.3%

✅ packagespackageforrootmodulemapping - 4/4

✅ cache_off

Time: ✅ 345.706ms (SLO: <354.300ms -2.4%) vs baseline: +0.4%

Memory: ✅ 41.771MB (SLO: <46.000MB -9.2%) vs baseline: +5.9%

✅ cache_on

Time: ✅ 0.380µs (SLO: <10.000µs 📉 -96.2%) vs baseline: -1.0%

Memory: ✅ 40.837MB (SLO: <46.000MB 📉 -11.2%) vs baseline: +5.2%

✅ ratelimiter - 12/12

✅ defaults

Time: ✅ 2.350µs (SLO: <10.000µs 📉 -76.5%) vs baseline: +0.4%

Memory: ✅ 36.530MB (SLO: <38.000MB -3.9%) vs baseline: +6.4%

✅ high_rate_limit

Time: ✅ 2.396µs (SLO: <10.000µs 📉 -76.0%) vs baseline: -0.5%

Memory: ✅ 36.530MB (SLO: <38.000MB -3.9%) vs baseline: +6.2%

✅ long_window

Time: ✅ 2.332µs (SLO: <10.000µs 📉 -76.7%) vs baseline: -0.6%

Memory: ✅ 36.510MB (SLO: <38.000MB -3.9%) vs baseline: +6.6%

✅ low_rate_limit

Time: ✅ 2.357µs (SLO: <10.000µs 📉 -76.4%) vs baseline: -0.3%

Memory: ✅ 36.530MB (SLO: <38.000MB -3.9%) vs baseline: +6.3%

✅ no_rate_limit

Time: ✅ 0.824µs (SLO: <10.000µs 📉 -91.8%) vs baseline: -1.1%

Memory: ✅ 36.569MB (SLO: <38.000MB -3.8%) vs baseline: +6.5%

✅ short_window

Time: ✅ 2.478µs (SLO: <10.000µs 📉 -75.2%) vs baseline: -0.6%

Memory: ✅ 36.530MB (SLO: <38.000MB -3.9%) vs baseline: +6.3%

✅ sethttpmeta - 32/32

✅ all-disabled

Time: ✅ 10.553µs (SLO: <20.000µs 📉 -47.2%) vs baseline: -0.4%

Memory: ✅ 37.002MB (SLO: <38.750MB -4.5%) vs baseline: +4.9%

✅ all-enabled

Time: ✅ 40.010µs (SLO: <50.000µs 📉 -20.0%) vs baseline: +3.0%

Memory: ✅ 37.120MB (SLO: <38.750MB -4.2%) vs baseline: +5.5%

✅ collectipvariant_exists

Time: ✅ 39.841µs (SLO: <50.000µs 📉 -20.3%) vs baseline: +0.3%

Memory: ✅ 37.041MB (SLO: <38.750MB -4.4%) vs baseline: +5.3%

✅ no-collectipvariant

Time: ✅ 39.253µs (SLO: <50.000µs 📉 -21.5%) vs baseline: +0.4%

Memory: ✅ 37.120MB (SLO: <38.750MB -4.2%) vs baseline: +5.2%

✅ no-useragentvariant

Time: ✅ 38.103µs (SLO: <50.000µs 📉 -23.8%) vs baseline: +0.9%

Memory: ✅ 37.002MB (SLO: <38.750MB -4.5%) vs baseline: +5.0%

✅ obfuscation-no-query

Time: ✅ 39.602µs (SLO: <50.000µs 📉 -20.8%) vs baseline: +0.1%

Memory: ✅ 37.080MB (SLO: <38.750MB -4.3%) vs baseline: +5.4%

✅ obfuscation-regular-case-explicit-query

Time: ✅ 75.885µs (SLO: <90.000µs 📉 -15.7%) vs baseline: +0.3%

Memory: ✅ 37.473MB (SLO: <38.750MB -3.3%) vs baseline: +6.0%

✅ obfuscation-regular-case-implicit-query

Time: ✅ 76.622µs (SLO: <90.000µs 📉 -14.9%) vs baseline: +0.2%

Memory: ✅ 37.493MB (SLO: <38.750MB -3.2%) vs baseline: +6.4%

✅ obfuscation-send-querystring-disabled

Time: ✅ 154.861µs (SLO: <170.000µs -8.9%) vs baseline: +0.4%

Memory: ✅ 37.572MB (SLO: <38.750MB -3.0%) vs baseline: +5.5%

✅ obfuscation-worst-case-explicit-query

Time: ✅ 149.363µs (SLO: <160.000µs -6.6%) vs baseline: +0.2%

Memory: ✅ 37.572MB (SLO: <38.750MB -3.0%) vs baseline: +5.7%

✅ obfuscation-worst-case-implicit-query

Time: ✅ 155.426µs (SLO: <170.000µs -8.6%) vs baseline: +0.3%

Memory: ✅ 37.395MB (SLO: <38.750MB -3.5%) vs baseline: +5.1%

✅ useragentvariant_exists_1

Time: ✅ 38.653µs (SLO: <50.000µs 📉 -22.7%) vs baseline: +0.2%

Memory: ✅ 37.061MB (SLO: <38.750MB -4.4%) vs baseline: +5.4%

✅ useragentvariant_exists_2

Time: ✅ 39.668µs (SLO: <50.000µs 📉 -20.7%) vs baseline: ~same

Memory: ✅ 37.002MB (SLO: <38.750MB -4.5%) vs baseline: +5.1%

✅ useragentvariant_exists_3

Time: ✅ 39.028µs (SLO: <50.000µs 📉 -21.9%) vs baseline: +0.1%

Memory: ✅ 37.002MB (SLO: <38.750MB -4.5%) vs baseline: +5.0%

✅ useragentvariant_not_exists_1

Time: ✅ 38.701µs (SLO: <50.000µs 📉 -22.6%) vs baseline: +0.5%

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

✅ useragentvariant_not_exists_2

Time: ✅ 38.790µs (SLO: <50.000µs 📉 -22.4%) vs baseline: +0.6%

Memory: ✅ 37.080MB (SLO: <38.750MB -4.3%) vs baseline: +5.3%

✅ telemetryaddmetric - 30/30

✅ 1-count-metric-1-times

Time: ✅ 2.324µs (SLO: <20.000µs 📉 -88.4%) vs baseline: +9.2%

Memory: ✅ 36.274MB (SLO: <38.000MB -4.5%) vs baseline: +5.4%

✅ 1-count-metrics-100-times

Time: ✅ 156.923µs (SLO: <220.000µs 📉 -28.7%) vs baseline: +2.8%

Memory: ✅ 36.215MB (SLO: <38.000MB -4.7%) vs baseline: +5.3%

✅ 1-distribution-metric-1-times

Time: ✅ 2.410µs (SLO: <20.000µs 📉 -87.9%) vs baseline: -4.7%

Memory: ✅ 36.196MB (SLO: <38.000MB -4.7%) vs baseline: +5.1%

✅ 1-distribution-metrics-100-times

Time: ✅ 164.304µs (SLO: <230.000µs 📉 -28.6%) vs baseline: -1.9%

Memory: ✅ 36.235MB (SLO: <38.000MB -4.6%) vs baseline: +5.3%

✅ 1-gauge-metric-1-times

Time: ✅ 1.980µs (SLO: <20.000µs 📉 -90.1%) vs baseline: -1.7%

Memory: ✅ 36.176MB (SLO: <38.000MB -4.8%) vs baseline: +4.9%

✅ 1-gauge-metrics-100-times

Time: ✅ 136.430µs (SLO: <150.000µs -9.0%) vs baseline: -0.4%

Memory: ✅ 36.196MB (SLO: <38.000MB -4.7%) vs baseline: +5.1%

✅ 1-rate-metric-1-times

Time: ✅ 2.279µs (SLO: <20.000µs 📉 -88.6%) vs baseline: +0.8%

Memory: ✅ 36.215MB (SLO: <38.000MB -4.7%) vs baseline: +5.2%

✅ 1-rate-metrics-100-times

Time: ✅ 169.620µs (SLO: <250.000µs 📉 -32.2%) vs baseline: +1.7%

Memory: ✅ 36.176MB (SLO: <38.000MB -4.8%) vs baseline: +4.9%

✅ 100-count-metrics-100-times

Time: ✅ 15.424ms (SLO: <22.000ms 📉 -29.9%) vs baseline: +0.9%

Memory: ✅ 36.235MB (SLO: <38.000MB -4.6%) vs baseline: +5.5%

✅ 100-distribution-metrics-100-times

Time: ✅ 1.725ms (SLO: <2.550ms 📉 -32.3%) vs baseline: -1.3%

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

✅ 100-gauge-metrics-100-times

Time: ✅ 1.400ms (SLO: <1.550ms -9.7%) vs baseline: ~same

Memory: ✅ 36.196MB (SLO: <38.000MB -4.7%) vs baseline: +5.0%

✅ 100-rate-metrics-100-times

Time: ✅ 1.744ms (SLO: <2.550ms 📉 -31.6%) vs baseline: +2.2%

Memory: ✅ 36.215MB (SLO: <38.000MB -4.7%) vs baseline: +5.5%

✅ flush-1-metric

Time: ✅ 3.634µs (SLO: <20.000µs 📉 -81.8%) vs baseline: +1.8%

Memory: ✅ 36.667MB (SLO: <38.000MB -3.5%) vs baseline: +6.5%

✅ flush-100-metrics

Time: ✅ 175.510µs (SLO: <250.000µs 📉 -29.8%) vs baseline: -0.1%

Memory: ✅ 36.687MB (SLO: <38.000MB -3.5%) vs baseline: +5.6%

✅ flush-1000-metrics

Time: ✅ 2.190ms (SLO: <2.500ms 📉 -12.4%) vs baseline: -0.5%

Memory: ✅ 37.021MB (SLO: <38.750MB -4.5%) vs baseline: +5.4%

✅ tracer - 6/6

✅ large

Time: ✅ 32.101ms (SLO: <32.950ms -2.6%) vs baseline: -0.1%

Memory: ✅ 37.827MB (SLO: <39.250MB -3.6%) vs baseline: +6.2%

✅ medium

Time: ✅ 3.227ms (SLO: <3.300ms -2.2%) vs baseline: -0.3%

Memory: ✅ 36.255MB (SLO: <38.750MB -6.4%) vs baseline: +5.5%

✅ small

Time: ✅ 360.635µs (SLO: <380.000µs -5.1%) vs baseline: -3.9%

Memory: ✅ 36.235MB (SLO: <38.750MB -6.5%) vs baseline: +5.2%

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
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KowalskiThomas · 2026-04-08T17:50:11Z

@P403n1x87 the crash is real but also very rare so this is mostly cleanup and not something to worry too much about 🙂‍↕️

github-actions · 2026-04-17T14:23:46Z

This change is marked for backport to 4.5, but it conflicts with that branch.
Attempting to cherrypick this change to 4.5 yielded the following error:

Auto-merging ddtrace/internal/wrapping/context.py
CONFLICT (content): Merge conflict in ddtrace/internal/wrapping/context.py
error: could not apply a8cce63206... fix(internal): crash in ContextVar (#17407)

The command used to test backporting was

git checkout 4.5 && git cherry-pick -x --mainline 1 a8cce63206a07984b2776d8ce8c1d378d03fb4b8

github-actions · 2026-04-17T14:23:47Z

This change is marked for backport to 4.6, but it conflicts with that branch.
Attempting to cherrypick this change to 4.6 yielded the following error:

Auto-merging ddtrace/internal/wrapping/context.py
CONFLICT (content): Merge conflict in ddtrace/internal/wrapping/context.py
error: could not apply a8cce63206... fix(internal): crash in ContextVar (#17407)

The command used to test backporting was

git checkout 4.6 && git cherry-pick -x --mainline 1 a8cce63206a07984b2776d8ce8c1d378d03fb4b8

github-actions · 2026-04-17T14:23:47Z

This change is marked for backport to 4.7, but it conflicts with that branch.
Attempting to cherrypick this change to 4.7 yielded the following error:

Auto-merging ddtrace/internal/wrapping/context.py
CONFLICT (content): Merge conflict in ddtrace/internal/wrapping/context.py
error: could not apply a8cce63206... fix(internal): crash in ContextVar (#17407)

The command used to test backporting was

git checkout 4.7 && git cherry-pick -x --mainline 1 a8cce63206a07984b2776d8ce8c1d378d03fb4b8

Backport of #17407 Co-authored-by: Juanjo Alvarez Martinez <juanjo.alvarezmartinez@datadoghq.com>

KowalskiThomas added changelog/no-changelog A changelog entry is not required for this PR. identified-by:crashtracking Identified by Crash Tracking labels Apr 8, 2026

KowalskiThomas added AI Generated Largely based on code generated by an AI or LLM. This label is the same across all dd-trace-* repos and removed changelog/no-changelog A changelog entry is not required for this PR. labels Apr 9, 2026

KowalskiThomas force-pushed the kowalski/fix-internal-crash-in-contextvar branch from aa4e9ea to ce16727 Compare April 9, 2026 14:22

fix(internal): crash in ContextVar

9e9ebbc

KowalskiThomas force-pushed the kowalski/fix-internal-crash-in-contextvar branch from ce16727 to 9e9ebbc Compare April 9, 2026 14:23

KowalskiThomas marked this pull request as ready for review April 9, 2026 14:24

KowalskiThomas requested review from a team as code owners April 9, 2026 14:24

KowalskiThomas requested review from duncanista, juanjux and taegyunkim April 9, 2026 14:24

P403n1x87 approved these changes Apr 9, 2026

View reviewed changes

gh-worker-dd-mergequeue-cf854d Bot merged commit a8cce63 into main Apr 9, 2026
1184 of 1188 checks passed

gh-worker-dd-mergequeue-cf854d Bot deleted the kowalski/fix-internal-crash-in-contextvar branch April 9, 2026 16:10

KowalskiThomas added backport 4.5 backport 4.6 backport 4.7 labels Apr 17, 2026

KowalskiThomas mentioned this pull request Apr 17, 2026

fix(internal): crash in ContextVar [backport 4.7] #17607

Merged

juanjux added a commit that referenced this pull request Apr 21, 2026

fix(internal): crash in ContextVar [backport 4.7] (#17607)

bc0b0f4

Backport of #17407 Co-authored-by: Juanjo Alvarez Martinez <juanjo.alvarezmartinez@datadoghq.com>

KowalskiThomas mentioned this pull request Apr 22, 2026

Crash in HAMT during garbage collection python/cpython#148891

Open

KowalskiThomas mentioned this pull request Jun 12, 2026

fix: native rust fix for HAMT/ContextVar crash #18599

Draft

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KowalskiThomas commented Apr 8, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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What is this PR?

Root Cause

Proposed Fix

Correctness

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Codeowners resolved as

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P403n1x87 commented Apr 8, 2026

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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

KowalskiThomas commented Apr 8, 2026 •

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pr-commenter Bot commented Apr 8, 2026 •

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