feat(llmobs): flush writers on SIGTERM with 5s shutdown timeout by ZStriker19 · Pull Request #17130 · DataDog/dd-trace-py

ZStriker19 · 2026-03-25T22:06:37Z

Summary

Registers LLMObs.disable with register_on_exit_signal so SIGTERM (e.g. Kubernetes pod termination during rolling deployments) triggers graceful flushing of buffered LLMObs spans and eval metrics before process exit. Previously these were silently dropped.
Adds LLMObs.SHUTDOWN_TIMEOUT = 5 (matching the tracer and data streams processor convention) and joins writer threads with this timeout during _stop_service.

Root cause

LLMObs.enable() only registered disable with standard atexit, which Python does not invoke on SIGTERM (the OS terminates the process before the interpreter shutdown hook runs). The tracer uses both atexit.register and atexit.register_on_exit_signal; LLMObs now does the same.

Registers LLMObs.disable with register_on_exit_signal so SIGTERM (e.g. Kubernetes pod termination) triggers a graceful flush of buffered spans and eval metrics before exit. Also joins writer threads with a 5-second default timeout, matching the tracer's SHUTDOWN_TIMEOUT convention. Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

cit-pr-commenter-54b7da · 2026-03-25T22:07:10Z

Codeowners resolved as

releasenotes/notes/llmobs-graceful-sigterm-shutdown-5598146f4e9fa081.yaml  @DataDog/apm-python

yuqiuw · 2026-03-25T22:19:32Z

ddtrace/llmobs/_llmobs.py

 class LLMObs(Service):
    _instance = None  # type: LLMObs
    enabled = False
+    SHUTDOWN_TIMEOUT = 5


can we make both this and the SHUTDOWN_TIMEOUT in Span_processor configurable?

I'll discuss with the team

sdwa0 · 2026-03-26T07:40:24Z

ddtrace/llmobs/_llmobs.py

            )

            atexit.register(cls.disable)
+            atexit.register_on_exit_signal(cls.disable)


This immediately disables LLMObs on SIGTERM signal. We have a use case where an application pod continues running for a graceful termination period of a few minutes after receiving SIGTERM signal. During that it need to able to continue writing LLM Obs traces. This is a generally valid use case.

For that, instead of immediately disabling LLMObs on SIGTERM, it should continue writing for a configurable period of time (configured with something like DD_LLMOBS_GRACEFUL_TERMINATION_PERIOD). So instead of registering cls.disable here, a new classmethod can be registered that waits the configured time period before calling disable().

…IGTERM shutdown Adds _on_exit_signal classmethod that checks config._llmobs_graceful_termination_period (DD_LLMOBS_GRACEFUL_TERMINATION_PERIOD, default 0). If zero, disables immediately on SIGTERM. If non-zero, starts a threading.Timer so the app can continue writing spans during a Kubernetes graceful termination window before flushing and stopping. Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

…MEOUT hardcoded The join timeout is an implementation detail (thread cleanup after a synchronous flush), not a meaningful user-facing knob. Keep it as a hardcoded 5s constant. Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

pr-commenter · 2026-03-26T15:07:58Z

Performance SLOs

Comparing candidate zach.groves/llmobs-graceful-sigterm-shutdown (4e3b542) with baseline 4.6 (bae3a8a)

📈 Performance Regressions (2 suites)

📈 iastaspects - 118/118

✅ add_aspect

Time: ✅ 105.736µs (SLO: <130.000µs 📉 -18.7%) vs baseline: +4.7%

Memory: ✅ 43.657MB (SLO: <46.000MB -5.1%) vs baseline: +4.9%

✅ add_inplace_aspect

Time: ✅ 102.586µs (SLO: <130.000µs 📉 -21.1%) vs baseline: +0.4%

Memory: ✅ 43.679MB (SLO: <46.000MB -5.0%) vs baseline: +4.8%

✅ add_inplace_noaspect

Time: ✅ 28.014µs (SLO: <40.000µs 📉 -30.0%) vs baseline: ~same

Memory: ✅ 43.615MB (SLO: <46.000MB -5.2%) vs baseline: +4.7%

✅ add_noaspect

Time: ✅ 49.249µs (SLO: <70.000µs 📉 -29.6%) vs baseline: +0.7%

Memory: ✅ 43.684MB (SLO: <46.000MB -5.0%) vs baseline: +5.0%

✅ bytearray_aspect

Time: ✅ 250.364µs (SLO: <400.000µs 📉 -37.4%) vs baseline: -0.7%

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

✅ bytearray_extend_aspect

Time: ✅ 648.645µs (SLO: <800.000µs 📉 -18.9%) vs baseline: ~same

Memory: ✅ 43.652MB (SLO: <46.000MB -5.1%) vs baseline: +4.9%

✅ bytearray_extend_noaspect

Time: ✅ 267.444µs (SLO: <400.000µs 📉 -33.1%) vs baseline: -1.5%

Memory: ✅ 43.663MB (SLO: <46.000MB -5.1%) vs baseline: +4.9%

✅ bytearray_noaspect

Time: ✅ 138.911µs (SLO: <300.000µs 📉 -53.7%) vs baseline: -0.9%

Memory: ✅ 43.641MB (SLO: <46.000MB -5.1%) vs baseline: +4.8%

✅ bytes_aspect

Time: ✅ 218.687µs (SLO: <300.000µs 📉 -27.1%) vs baseline: +0.1%

Memory: ✅ 43.634MB (SLO: <46.000MB -5.1%) vs baseline: +4.7%

✅ bytes_noaspect

Time: ✅ 134.991µs (SLO: <200.000µs 📉 -32.5%) vs baseline: +0.3%

Memory: ✅ 43.698MB (SLO: <46.000MB -5.0%) vs baseline: +4.9%

✅ bytesio_aspect

Time: ✅ 3.775ms (SLO: <5.000ms 📉 -24.5%) vs baseline: -0.7%

Memory: ✅ 43.700MB (SLO: <46.000MB -5.0%) vs baseline: +5.1%

✅ bytesio_noaspect

Time: ✅ 313.825µs (SLO: <420.000µs 📉 -25.3%) vs baseline: +0.3%

Memory: ✅ 43.676MB (SLO: <46.000MB -5.1%) vs baseline: +5.0%

✅ capitalize_aspect

Time: ✅ 89.363µs (SLO: <300.000µs 📉 -70.2%) vs baseline: +1.4%

Memory: ✅ 43.698MB (SLO: <46.000MB -5.0%) vs baseline: +5.0%

✅ capitalize_noaspect

Time: ✅ 254.561µs (SLO: <300.000µs 📉 -15.1%) vs baseline: +3.1%

Memory: ✅ 43.686MB (SLO: <46.000MB -5.0%) vs baseline: +4.8%

✅ casefold_aspect

Time: ✅ 89.176µs (SLO: <500.000µs 📉 -82.2%) vs baseline: +0.4%

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

✅ casefold_noaspect

Time: ✅ 302.401µs (SLO: <500.000µs 📉 -39.5%) vs baseline: -0.2%

Memory: ✅ 43.675MB (SLO: <46.000MB -5.1%) vs baseline: +4.9%

✅ decode_aspect

Time: ✅ 86.545µs (SLO: <100.000µs 📉 -13.5%) vs baseline: -0.6%

Memory: ✅ 43.616MB (SLO: <46.000MB -5.2%) vs baseline: +4.8%

✅ decode_noaspect

Time: ✅ 153.794µs (SLO: <210.000µs 📉 -26.8%) vs baseline: +1.4%

Memory: ✅ 43.719MB (SLO: <46.000MB -5.0%) vs baseline: +4.8%

✅ encode_aspect

Time: ✅ 84.216µs (SLO: <200.000µs 📉 -57.9%) vs baseline: -0.5%

Memory: ✅ 43.726MB (SLO: <46.000MB -4.9%) vs baseline: +5.0%

✅ encode_noaspect

Time: ✅ 141.630µs (SLO: <200.000µs 📉 -29.2%) vs baseline: +1.4%

Memory: ✅ 43.630MB (SLO: <46.000MB -5.2%) vs baseline: +4.8%

✅ format_aspect

Time: ✅ 14.588ms (SLO: <19.200ms 📉 -24.0%) vs baseline: +0.2%

Memory: ✅ 43.776MB (SLO: <46.000MB -4.8%) vs baseline: +5.0%

✅ format_map_aspect

Time: ✅ 16.339ms (SLO: <21.500ms 📉 -24.0%) vs baseline: -0.5%

Memory: ✅ 43.795MB (SLO: <46.000MB -4.8%) vs baseline: +5.0%

✅ format_map_noaspect

Time: ✅ 369.508µs (SLO: <500.000µs 📉 -26.1%) vs baseline: -0.2%

Memory: ✅ 43.615MB (SLO: <46.000MB -5.2%) vs baseline: +4.7%

✅ format_noaspect

Time: ✅ 311.852µs (SLO: <500.000µs 📉 -37.6%) vs baseline: +0.8%

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

✅ index_aspect

Time: ✅ 127.223µs (SLO: <300.000µs 📉 -57.6%) vs baseline: +3.4%

Memory: ✅ 43.675MB (SLO: <46.000MB -5.1%) vs baseline: +5.0%

✅ index_noaspect

Time: ✅ 40.317µs (SLO: <300.000µs 📉 -86.6%) vs baseline: +0.3%

Memory: ✅ 43.678MB (SLO: <46.000MB -5.0%) vs baseline: +5.0%

✅ join_aspect

Time: ✅ 212.266µs (SLO: <300.000µs 📉 -29.2%) vs baseline: +0.9%

Memory: ✅ 43.635MB (SLO: <46.000MB -5.1%) vs baseline: +4.8%

✅ join_noaspect

Time: ✅ 143.778µs (SLO: <300.000µs 📉 -52.1%) vs baseline: +1.0%

Memory: ✅ 43.704MB (SLO: <46.000MB -5.0%) vs baseline: +4.8%

✅ ljust_aspect

Time: ✅ 566.364µs (SLO: <700.000µs 📉 -19.1%) vs baseline: 📈 +15.6%

Memory: ✅ 43.658MB (SLO: <46.000MB -5.1%) vs baseline: +4.9%

✅ ljust_noaspect

Time: ✅ 254.255µs (SLO: <300.000µs 📉 -15.2%) vs baseline: -0.2%

Memory: ✅ 43.721MB (SLO: <46.000MB -5.0%) vs baseline: +5.1%

✅ lower_aspect

Time: ✅ 293.838µs (SLO: <500.000µs 📉 -41.2%) vs baseline: +0.5%

Memory: ✅ 43.614MB (SLO: <46.000MB -5.2%) vs baseline: +4.8%

✅ lower_noaspect

Time: ✅ 231.443µs (SLO: <300.000µs 📉 -22.9%) vs baseline: +0.6%

Memory: ✅ 43.651MB (SLO: <46.000MB -5.1%) vs baseline: +4.9%

✅ lstrip_aspect

Time: ✅ 0.272ms (SLO: <3.000ms 📉 -90.9%) vs baseline: +0.4%

Memory: ✅ 43.658MB (SLO: <46.000MB -5.1%) vs baseline: +4.6%

✅ lstrip_noaspect

Time: ✅ 0.175ms (SLO: <3.000ms 📉 -94.2%) vs baseline: -0.1%

Memory: ✅ 43.655MB (SLO: <46.000MB -5.1%) vs baseline: +4.8%

✅ modulo_aspect

Time: ✅ 14.313ms (SLO: <18.750ms 📉 -23.7%) vs baseline: +0.5%

Memory: ✅ 43.655MB (SLO: <46.000MB -5.1%) vs baseline: +4.6%

✅ modulo_aspect_for_bytearray_bytearray

Time: ✅ 14.787ms (SLO: <19.350ms 📉 -23.6%) vs baseline: ~same

Memory: ✅ 43.677MB (SLO: <46.000MB -5.1%) vs baseline: +4.7%

✅ modulo_aspect_for_bytes

Time: ✅ 14.409ms (SLO: <18.900ms 📉 -23.8%) vs baseline: +0.3%

Memory: ✅ 43.690MB (SLO: <46.000MB -5.0%) vs baseline: +4.8%

✅ modulo_aspect_for_bytes_bytearray

Time: ✅ 14.615ms (SLO: <19.150ms 📉 -23.7%) vs baseline: +0.3%

Memory: ✅ 43.745MB (SLO: <46.000MB -4.9%) vs baseline: +5.1%

✅ modulo_noaspect

Time: ✅ 0.363ms (SLO: <3.000ms 📉 -87.9%) vs baseline: +0.9%

Memory: ✅ 43.766MB (SLO: <46.000MB -4.9%) vs baseline: +5.0%

✅ replace_aspect

Time: ✅ 18.352ms (SLO: <24.000ms 📉 -23.5%) vs baseline: ~same

Memory: ✅ 43.652MB (SLO: <46.000MB -5.1%) vs baseline: +4.7%

✅ replace_noaspect

Time: ✅ 282.079µs (SLO: <300.000µs -6.0%) vs baseline: ~same

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

✅ repr_aspect

Time: ✅ 317.541µs (SLO: <420.000µs 📉 -24.4%) vs baseline: +0.6%

Memory: ✅ 43.657MB (SLO: <46.000MB -5.1%) vs baseline: +4.7%

✅ repr_noaspect

Time: ✅ 46.678µs (SLO: <90.000µs 📉 -48.1%) vs baseline: +0.3%

Memory: ✅ 43.706MB (SLO: <46.000MB -5.0%) vs baseline: +4.9%

✅ rstrip_aspect

Time: ✅ 382.745µs (SLO: <500.000µs 📉 -23.5%) vs baseline: -0.4%

Memory: ✅ 43.682MB (SLO: <46.000MB -5.0%) vs baseline: +4.9%

✅ rstrip_noaspect

Time: ✅ 184.650µs (SLO: <300.000µs 📉 -38.4%) vs baseline: +1.1%

Memory: ✅ 43.674MB (SLO: <46.000MB -5.1%) vs baseline: +4.9%

✅ slice_aspect

Time: ✅ 180.928µs (SLO: <300.000µs 📉 -39.7%) vs baseline: -0.4%

Memory: ✅ 43.617MB (SLO: <46.000MB -5.2%) vs baseline: +4.7%

✅ slice_noaspect

Time: ✅ 54.696µs (SLO: <90.000µs 📉 -39.2%) vs baseline: +1.2%

Memory: ✅ 43.816MB (SLO: <46.000MB -4.7%) vs baseline: +5.2%

✅ stringio_aspect

Time: ✅ 4.405ms (SLO: <5.000ms 📉 -11.9%) vs baseline: 📈 +15.7%

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

✅ stringio_noaspect

Time: ✅ 343.686µs (SLO: <500.000µs 📉 -31.3%) vs baseline: -0.8%

Memory: ✅ 43.648MB (SLO: <46.000MB -5.1%) vs baseline: +4.7%

✅ strip_aspect

Time: ✅ 270.079µs (SLO: <350.000µs 📉 -22.8%) vs baseline: -0.7%

Memory: ✅ 43.633MB (SLO: <46.000MB -5.1%) vs baseline: +4.7%

✅ strip_noaspect

Time: ✅ 174.549µs (SLO: <240.000µs 📉 -27.3%) vs baseline: -1.3%

Memory: ✅ 43.655MB (SLO: <46.000MB -5.1%) vs baseline: +5.0%

✅ swapcase_aspect

Time: ✅ 327.540µs (SLO: <500.000µs 📉 -34.5%) vs baseline: +0.8%

Memory: ✅ 43.698MB (SLO: <46.000MB -5.0%) vs baseline: +5.2%

✅ swapcase_noaspect

Time: ✅ 269.918µs (SLO: <400.000µs 📉 -32.5%) vs baseline: +1.7%

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

✅ title_aspect

Time: ✅ 316.329µs (SLO: <500.000µs 📉 -36.7%) vs baseline: -0.2%

Memory: ✅ 43.635MB (SLO: <46.000MB -5.1%) vs baseline: +4.6%

✅ title_noaspect

Time: ✅ 256.512µs (SLO: <400.000µs 📉 -35.9%) vs baseline: +0.8%

Memory: ✅ 43.698MB (SLO: <46.000MB -5.0%) vs baseline: +4.9%

✅ translate_aspect

Time: ✅ 487.304µs (SLO: <700.000µs 📉 -30.4%) vs baseline: -0.9%

Memory: ✅ 43.609MB (SLO: <46.000MB -5.2%) vs baseline: +4.8%

✅ translate_noaspect

Time: ✅ 425.398µs (SLO: <500.000µs 📉 -14.9%) vs baseline: -0.2%

Memory: ✅ 43.734MB (SLO: <46.000MB -4.9%) vs baseline: +5.0%

✅ upper_aspect

Time: ✅ 295.418µs (SLO: <500.000µs 📉 -40.9%) vs baseline: +1.1%

Memory: ✅ 43.613MB (SLO: <46.000MB -5.2%) vs baseline: +4.7%

✅ upper_noaspect

Time: ✅ 230.668µs (SLO: <400.000µs 📉 -42.3%) vs baseline: -0.5%

Memory: ✅ 43.747MB (SLO: <46.000MB -4.9%) vs baseline: +5.1%

📈 iastaspectsospath - 24/24

✅ ospathbasename_aspect

Time: ✅ 521.050µs (SLO: <700.000µs 📉 -25.6%) vs baseline: 📈 +23.1%

Memory: ✅ 43.515MB (SLO: <46.000MB -5.4%) vs baseline: +4.7%

✅ ospathbasename_noaspect

Time: ✅ 432.748µs (SLO: <700.000µs 📉 -38.2%) vs baseline: -0.6%

Memory: ✅ 43.663MB (SLO: <46.000MB -5.1%) vs baseline: +5.1%

✅ ospathjoin_aspect

Time: ✅ 622.069µs (SLO: <700.000µs 📉 -11.1%) vs baseline: +0.3%

Memory: ✅ 43.630MB (SLO: <46.000MB -5.2%) vs baseline: +4.9%

✅ ospathjoin_noaspect

Time: ✅ 631.047µs (SLO: <700.000µs -9.9%) vs baseline: -0.1%

Memory: ✅ 43.674MB (SLO: <46.000MB -5.1%) vs baseline: +5.0%

✅ ospathnormcase_aspect

Time: ✅ 346.471µs (SLO: <700.000µs 📉 -50.5%) vs baseline: -1.0%

Memory: ✅ 43.622MB (SLO: <46.000MB -5.2%) vs baseline: +5.0%

✅ ospathnormcase_noaspect

Time: ✅ 357.183µs (SLO: <700.000µs 📉 -49.0%) vs baseline: +1.2%

Memory: ✅ 43.579MB (SLO: <46.000MB -5.3%) vs baseline: +4.7%

✅ ospathsplit_aspect

Time: ✅ 482.624µs (SLO: <700.000µs 📉 -31.1%) vs baseline: -0.7%

Memory: ✅ 43.623MB (SLO: <46.000MB -5.2%) vs baseline: +4.9%

✅ ospathsplit_noaspect

Time: ✅ 499.713µs (SLO: <700.000µs 📉 -28.6%) vs baseline: ~same

Memory: ✅ 43.629MB (SLO: <46.000MB -5.2%) vs baseline: +5.1%

✅ ospathsplitdrive_aspect

Time: ✅ 374.650µs (SLO: <700.000µs 📉 -46.5%) vs baseline: -0.3%

Memory: ✅ 43.610MB (SLO: <46.000MB -5.2%) vs baseline: +5.0%

✅ ospathsplitdrive_noaspect

Time: ✅ 72.643µs (SLO: <700.000µs 📉 -89.6%) vs baseline: +1.1%

Memory: ✅ 43.633MB (SLO: <46.000MB -5.1%) vs baseline: +5.1%

✅ ospathsplitext_aspect

Time: ✅ 456.828µs (SLO: <700.000µs 📉 -34.7%) vs baseline: +0.3%

Memory: ✅ 43.537MB (SLO: <46.000MB -5.4%) vs baseline: +4.6%

✅ ospathsplitext_noaspect

Time: ✅ 462.248µs (SLO: <700.000µs 📉 -34.0%) vs baseline: -0.4%

Memory: ✅ 43.533MB (SLO: <46.000MB -5.4%) vs baseline: +4.7%

🟡 Near SLO Breach (2 suites)

🟡 flasksimple - 18/18

✅ appsec-get

Time: ✅ 3.447ms (SLO: <4.750ms 📉 -27.4%) vs baseline: ~same

Memory: ✅ 55.458MB (SLO: <66.500MB 📉 -16.6%) vs baseline: +4.9%

✅ appsec-post

Time: ✅ 2.909ms (SLO: <6.750ms 📉 -56.9%) vs baseline: ~same

Memory: ✅ 55.772MB (SLO: <66.500MB 📉 -16.1%) vs baseline: +4.8%

✅ appsec-telemetry

Time: ✅ 3.448ms (SLO: <4.750ms 📉 -27.4%) vs baseline: +0.8%

Memory: ✅ 55.452MB (SLO: <66.500MB 📉 -16.6%) vs baseline: +4.8%

✅ debugger

Time: ✅ 1.877ms (SLO: <2.000ms -6.2%) vs baseline: ~same

Memory: ✅ 49.031MB (SLO: <51.500MB -4.8%) vs baseline: +4.8%

✅ iast-get

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

Memory: ✅ 46.003MB (SLO: <49.000MB -6.1%) vs baseline: +4.7%

✅ profiler

Time: ✅ 1.913ms (SLO: <2.100ms -8.9%) vs baseline: +0.2%

Memory: ✅ 52.135MB (SLO: <52.500MB 🟡 -0.7%) vs baseline: +4.9%

✅ resource-renaming

Time: ✅ 3.422ms (SLO: <3.650ms -6.3%) vs baseline: +0.2%

Memory: ✅ 55.510MB (SLO: <60.000MB -7.5%) vs baseline: +5.0%

✅ tracer

Time: ✅ 3.425ms (SLO: <3.650ms -6.2%) vs baseline: ~same

Memory: ✅ 55.438MB (SLO: <60.000MB -7.6%) vs baseline: +4.9%

✅ tracer-native

Time: ✅ 3.408ms (SLO: <3.650ms -6.6%) vs baseline: -0.3%

Memory: ✅ 55.497MB (SLO: <60.000MB -7.5%) vs baseline: +5.0%

🟡 tracer - 6/6

✅ large

Time: ✅ 31.399ms (SLO: <32.950ms -4.7%) vs baseline: -0.2%

Memory: ✅ 37.552MB (SLO: <39.250MB -4.3%) vs baseline: +4.9%

✅ medium

Time: ✅ 3.098ms (SLO: <3.200ms -3.2%) vs baseline: -0.5%

Memory: ✅ 36.333MB (SLO: <38.750MB -6.2%) vs baseline: +5.0%

✅ small

Time: ✅ 363.019µs (SLO: <370.000µs 🟡 -1.9%) vs baseline: +3.7%

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

⚠️ Unstable Tests (2 suites)

⚠️

coreapiscenario - 10/10 (1 unstable)

⚠️ context_with_data_listeners

Time: ⚠️ 13.326µs (SLO: <20.000µs 📉 -33.4%) vs baseline: ~same

Memory: ✅ 36.372MB (SLO: <38.000MB -4.3%) vs baseline: +5.1%

✅ context_with_data_no_listeners

Time: ✅ 3.342µs (SLO: <10.000µs 📉 -66.6%) vs baseline: +0.7%

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

✅ get_item_exists

Time: ✅ 0.586µs (SLO: <10.000µs 📉 -94.1%) vs baseline: -0.4%

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +4.9%

✅ get_item_missing

Time: ✅ 0.637µs (SLO: <10.000µs 📉 -93.6%) vs baseline: -0.4%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +5.0%

✅ set_item

Time: ✅ 24.349µs (SLO: <30.000µs 📉 -18.8%) vs baseline: -0.2%

Memory: ✅ 36.392MB (SLO: <38.000MB -4.2%) vs baseline: +5.1%

⚠️

packagesupdateimporteddependencies - 24/24 (1 unstable)

✅ import_many

Time: ✅ 155.536µs (SLO: <170.000µs -8.5%) vs baseline: ~same

Memory: ✅ 41.160MB (SLO: <46.000MB 📉 -10.5%) vs baseline: +5.2%

✅ import_many_cached

Time: ✅ 120.674µs (SLO: <130.000µs -7.2%) vs baseline: -0.8%

Memory: ✅ 41.258MB (SLO: <46.000MB 📉 -10.3%) vs baseline: +4.8%

✅ import_many_stdlib

Time: ✅ 0.778ms (SLO: <1.750ms 📉 -55.6%) vs baseline: -0.2%

Memory: ✅ 41.034MB (SLO: <46.000MB 📉 -10.8%) vs baseline: +4.9%

⚠️ import_many_stdlib_cached

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

Memory: ✅ 40.876MB (SLO: <46.000MB 📉 -11.1%) vs baseline: +4.5%

✅ import_many_unknown

Time: ✅ 832.922µs (SLO: <890.000µs -6.4%) vs baseline: +0.9%

Memory: ✅ 41.480MB (SLO: <46.000MB -9.8%) vs baseline: +5.8%

✅ import_many_unknown_cached

Time: ✅ 789.133µs (SLO: <870.000µs -9.3%) vs baseline: ~same

Memory: ✅ 41.160MB (SLO: <46.000MB 📉 -10.5%) vs baseline: +4.6%

✅ import_one

Time: ✅ 19.864µs (SLO: <30.000µs 📉 -33.8%) vs baseline: +0.2%

Memory: ✅ 41.367MB (SLO: <46.000MB 📉 -10.1%) vs baseline: +5.7%

✅ import_one_cache

Time: ✅ 6.327µs (SLO: <10.000µs 📉 -36.7%) vs baseline: +0.1%

Memory: ✅ 41.164MB (SLO: <46.000MB 📉 -10.5%) vs baseline: +4.6%

✅ import_one_stdlib

Time: ✅ 18.847µs (SLO: <20.000µs -5.8%) vs baseline: +0.5%

Memory: ✅ 40.919MB (SLO: <46.000MB 📉 -11.0%) vs baseline: +4.2%

✅ import_one_stdlib_cache

Time: ✅ 6.294µs (SLO: <10.000µs 📉 -37.1%) vs baseline: -0.2%

Memory: ✅ 40.963MB (SLO: <46.000MB 📉 -11.0%) vs baseline: +4.1%

✅ import_one_unknown

Time: ✅ 45.534µs (SLO: <50.000µs -8.9%) vs baseline: -0.9%

Memory: ✅ 41.357MB (SLO: <46.000MB 📉 -10.1%) vs baseline: +5.7%

✅ import_one_unknown_cache

Time: ✅ 6.277µs (SLO: <10.000µs 📉 -37.2%) vs baseline: ~same

Memory: ✅ 41.070MB (SLO: <43.000MB -4.5%) vs baseline: +4.1%

✅ All Tests Passing (20 suites)

✅ codeprovenancefork - 2/2

✅ fork-10

Time: ✅ 2.155s (SLO: <2.300s -6.3%) vs baseline: +2.2%

Memory: ✅ 17.400MB (SLO: <20.000MB 📉 -13.0%) vs baseline: +4.7%

✅ djangosimple - 30/30

✅ appsec

Time: ✅ 19.555ms (SLO: <22.300ms 📉 -12.3%) vs baseline: -0.4%

Memory: ✅ 68.725MB (SLO: <73.500MB -6.5%) vs baseline: +4.8%

✅ exception-replay-enabled

Time: ✅ 1.379ms (SLO: <1.450ms -4.9%) vs baseline: -0.1%

Memory: ✅ 66.503MB (SLO: <71.500MB -7.0%) vs baseline: +5.0%

✅ iast

Time: ✅ 19.563ms (SLO: <22.250ms 📉 -12.1%) vs baseline: -0.6%

Memory: ✅ 68.675MB (SLO: <75.000MB -8.4%) vs baseline: +4.8%

✅ profiler

Time: ✅ 15.146ms (SLO: <16.550ms -8.5%) vs baseline: -0.6%

Memory: ✅ 59.767MB (SLO: <61.000MB -2.0%) vs baseline: +4.6%

✅ resource-renaming

Time: ✅ 19.556ms (SLO: <21.750ms 📉 -10.1%) vs baseline: +0.1%

Memory: ✅ 68.783MB (SLO: <73.500MB -6.4%) vs baseline: +4.9%

✅ span-code-origin

Time: ✅ 20.130ms (SLO: <28.200ms 📉 -28.6%) vs baseline: +1.6%

Memory: ✅ 68.435MB (SLO: <75.000MB -8.8%) vs baseline: +4.8%

✅ tracer

Time: ✅ 19.529ms (SLO: <21.750ms 📉 -10.2%) vs baseline: -0.3%

Memory: ✅ 68.734MB (SLO: <75.000MB -8.4%) vs baseline: +4.9%

✅ tracer-and-profiler

Time: ✅ 21.029ms (SLO: <23.500ms 📉 -10.5%) vs baseline: -0.2%

Memory: ✅ 70.206MB (SLO: <75.000MB -6.4%) vs baseline: +4.9%

✅ tracer-dont-create-db-spans

Time: ✅ 19.633ms (SLO: <21.500ms -8.7%) vs baseline: ~same

Memory: ✅ 68.754MB (SLO: <75.000MB -8.3%) vs baseline: +4.9%

✅ tracer-minimal

Time: ✅ 16.698ms (SLO: <17.500ms -4.6%) vs baseline: -0.8%

Memory: ✅ 68.357MB (SLO: <75.000MB -8.9%) vs baseline: +4.9%

✅ tracer-native

Time: ✅ 19.623ms (SLO: <21.750ms -9.8%) vs baseline: +0.1%

Memory: ✅ 68.755MB (SLO: <72.500MB -5.2%) vs baseline: +4.9%

✅ tracer-no-caches

Time: ✅ 17.581ms (SLO: <19.650ms 📉 -10.5%) vs baseline: ~same

Memory: ✅ 68.754MB (SLO: <75.000MB -8.3%) vs baseline: +5.3%

✅ tracer-no-databases

Time: ✅ 19.090ms (SLO: <20.100ms -5.0%) vs baseline: -0.8%

Memory: ✅ 68.557MB (SLO: <75.000MB -8.6%) vs baseline: +5.2%

✅ tracer-no-middleware

Time: ✅ 19.266ms (SLO: <21.500ms 📉 -10.4%) vs baseline: ~same

Memory: ✅ 68.753MB (SLO: <75.000MB -8.3%) vs baseline: +4.9%

✅ tracer-no-templates

Time: ✅ 19.580ms (SLO: <22.000ms 📉 -11.0%) vs baseline: +1.0%

Memory: ✅ 68.686MB (SLO: <73.500MB -6.5%) vs baseline: +4.7%

✅ errortrackingdjangosimple - 6/6

✅ errortracking-enabled-all

Time: ✅ 16.298ms (SLO: <19.850ms 📉 -17.9%) vs baseline: -0.2%

Memory: ✅ 68.223MB (SLO: <75.000MB -9.0%) vs baseline: +4.9%

✅ errortracking-enabled-user

Time: ✅ 16.368ms (SLO: <19.400ms 📉 -15.6%) vs baseline: -0.2%

Memory: ✅ 68.125MB (SLO: <75.000MB -9.2%) vs baseline: +4.8%

✅ tracer-enabled

Time: ✅ 16.392ms (SLO: <19.450ms 📉 -15.7%) vs baseline: +0.2%

Memory: ✅ 68.164MB (SLO: <75.000MB -9.1%) vs baseline: +4.9%

✅ errortrackingflasksqli - 6/6

✅ errortracking-enabled-all

Time: ✅ 2.130ms (SLO: <2.300ms -7.4%) vs baseline: +0.5%

Memory: ✅ 55.611MB (SLO: <60.000MB -7.3%) vs baseline: +4.8%

✅ errortracking-enabled-user

Time: ✅ 2.125ms (SLO: <2.250ms -5.6%) vs baseline: -0.5%

Memory: ✅ 55.540MB (SLO: <60.000MB -7.4%) vs baseline: +4.7%

✅ tracer-enabled

Time: ✅ 2.119ms (SLO: <2.300ms -7.9%) vs baseline: ~same

Memory: ✅ 55.546MB (SLO: <60.000MB -7.4%) vs baseline: +4.9%

✅ flasksqli - 6/6

✅ appsec-enabled

Time: ✅ 2.126ms (SLO: <4.200ms 📉 -49.4%) vs baseline: +0.4%

Memory: ✅ 55.664MB (SLO: <66.000MB 📉 -15.7%) vs baseline: +4.8%

✅ iast-enabled

Time: ✅ 2.125ms (SLO: <2.800ms 📉 -24.1%) vs baseline: ~same

Memory: ✅ 55.588MB (SLO: <62.500MB 📉 -11.1%) vs baseline: +4.7%

✅ tracer-enabled

Time: ✅ 2.115ms (SLO: <2.250ms -6.0%) vs baseline: ~same

Memory: ✅ 55.672MB (SLO: <60.000MB -7.2%) vs baseline: +4.6%

✅ forktime - 4/4

✅ baseline

Time: ✅ 1.956ms (SLO: <3.000ms 📉 -34.8%) vs baseline: +3.4%

Memory: ✅ 29.354MB (SLO: <33.000MB 📉 -11.0%) vs baseline: +5.2%

✅ configured

Time: ✅ 8.675ms (SLO: <13.000ms 📉 -33.3%) vs baseline: +0.4%

Memory: ✅ 55.610MB (SLO: <60.000MB -7.3%) vs baseline: +5.1%

✅ httppropagationextract - 60/60

✅ all_styles_all_headers

Time: ✅ 76.598µs (SLO: <100.000µs 📉 -23.4%) vs baseline: ~same

Memory: ✅ 36.530MB (SLO: <38.000MB -3.9%) vs baseline: +4.6%

✅ b3_headers

Time: ✅ 12.802µs (SLO: <20.000µs 📉 -36.0%) vs baseline: +0.6%

Memory: ✅ 36.431MB (SLO: <38.000MB -4.1%) vs baseline: +5.0%

✅ b3_single_headers

Time: ✅ 11.886µs (SLO: <20.000µs 📉 -40.6%) vs baseline: -0.4%

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

✅ datadog_tracecontext_tracestate_not_propagated_on_trace_id_no_match

Time: ✅ 61.755µs (SLO: <80.000µs 📉 -22.8%) vs baseline: ~same

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +3.8%

✅ datadog_tracecontext_tracestate_propagated_on_trace_id_match

Time: ✅ 63.513µs (SLO: <80.000µs 📉 -20.6%) vs baseline: +0.2%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +4.6%

✅ empty_headers

Time: ✅ 1.307µs (SLO: <10.000µs 📉 -86.9%) vs baseline: -0.1%

Memory: ✅ 36.451MB (SLO: <38.000MB -4.1%) vs baseline: +4.9%

✅ full_t_id_datadog_headers

Time: ✅ 21.368µs (SLO: <30.000µs 📉 -28.8%) vs baseline: ~same

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

✅ invalid_priority_header

Time: ✅ 5.911µs (SLO: <10.000µs 📉 -40.9%) vs baseline: +0.2%

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

✅ invalid_span_id_header

Time: ✅ 5.892µs (SLO: <10.000µs 📉 -41.1%) vs baseline: -0.3%

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

✅ invalid_tags_header

Time: ✅ 5.931µs (SLO: <10.000µs 📉 -40.7%) vs baseline: +0.9%

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

✅ invalid_trace_id_header

Time: ✅ 5.920µs (SLO: <10.000µs 📉 -40.8%) vs baseline: +0.4%

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

✅ large_header_no_matches

Time: ✅ 26.986µs (SLO: <30.000µs 📉 -10.0%) vs baseline: -0.4%

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

✅ large_valid_headers_all

Time: ✅ 28.245µs (SLO: <40.000µs 📉 -29.4%) vs baseline: +0.6%

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

✅ medium_header_no_matches

Time: ✅ 9.264µs (SLO: <20.000µs 📉 -53.7%) vs baseline: +0.5%

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

✅ medium_valid_headers_all

Time: ✅ 10.716µs (SLO: <20.000µs 📉 -46.4%) vs baseline: +0.8%

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

✅ none_propagation_style

Time: ✅ 1.405µs (SLO: <10.000µs 📉 -86.0%) vs baseline: +1.1%

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

✅ tracecontext_headers

Time: ✅ 32.830µs (SLO: <40.000µs 📉 -17.9%) vs baseline: -0.4%

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

✅ valid_headers_all

Time: ✅ 5.923µs (SLO: <10.000µs 📉 -40.8%) vs baseline: +0.2%

Memory: ✅ 36.431MB (SLO: <38.000MB -4.1%) vs baseline: +4.8%

✅ valid_headers_basic

Time: ✅ 5.476µs (SLO: <10.000µs 📉 -45.2%) vs baseline: -0.1%

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

✅ wsgi_empty_headers

Time: ✅ 1.324µs (SLO: <10.000µs 📉 -86.8%) vs baseline: +2.0%

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

✅ wsgi_invalid_priority_header

Time: ✅ 5.936µs (SLO: <10.000µs 📉 -40.6%) vs baseline: -0.9%

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

✅ wsgi_invalid_span_id_header

Time: ✅ 1.320µs (SLO: <10.000µs 📉 -86.8%) vs baseline: +1.2%

Memory: ✅ 36.431MB (SLO: <38.000MB -4.1%) vs baseline: +5.0%

✅ wsgi_invalid_tags_header

Time: ✅ 5.954µs (SLO: <10.000µs 📉 -40.5%) vs baseline: ~same

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

✅ wsgi_invalid_trace_id_header

Time: ✅ 5.958µs (SLO: <10.000µs 📉 -40.4%) vs baseline: +0.6%

Memory: ✅ 36.412MB (SLO: <38.000MB -4.2%) vs baseline: +4.8%

✅ wsgi_large_header_no_matches

Time: ✅ 28.197µs (SLO: <40.000µs 📉 -29.5%) vs baseline: +0.3%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +4.4%

✅ wsgi_large_valid_headers_all

Time: ✅ 29.250µs (SLO: <40.000µs 📉 -26.9%) vs baseline: +0.3%

Memory: ✅ 36.490MB (SLO: <38.000MB -4.0%) vs baseline: +4.4%

✅ wsgi_medium_header_no_matches

Time: ✅ 9.552µs (SLO: <20.000µs 📉 -52.2%) vs baseline: +0.2%

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

✅ wsgi_medium_valid_headers_all

Time: ✅ 10.943µs (SLO: <20.000µs 📉 -45.3%) vs baseline: +0.4%

Memory: ✅ 36.392MB (SLO: <38.000MB -4.2%) vs baseline: +4.8%

✅ wsgi_valid_headers_all

Time: ✅ 6.018µs (SLO: <10.000µs 📉 -39.8%) vs baseline: +0.8%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +4.6%

✅ wsgi_valid_headers_basic

Time: ✅ 5.525µs (SLO: <10.000µs 📉 -44.8%) vs baseline: +0.4%

Memory: ✅ 36.490MB (SLO: <38.000MB -4.0%) vs baseline: +5.0%

✅ httppropagationinject - 16/16

✅ ids_only

Time: ✅ 20.859µs (SLO: <30.000µs 📉 -30.5%) vs baseline: +4.2%

Memory: ✅ 36.431MB (SLO: <38.000MB -4.1%) vs baseline: +5.0%

✅ with_all

Time: ✅ 27.103µs (SLO: <40.000µs 📉 -32.2%) vs baseline: +0.2%

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

✅ with_dd_origin

Time: ✅ 23.970µs (SLO: <30.000µs 📉 -20.1%) vs baseline: +0.2%

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

✅ with_priority_and_origin

Time: ✅ 23.293µs (SLO: <40.000µs 📉 -41.8%) vs baseline: ~same

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +4.6%

✅ with_sampling_priority

Time: ✅ 20.192µs (SLO: <30.000µs 📉 -32.7%) vs baseline: +0.7%

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

✅ with_tags

Time: ✅ 25.228µs (SLO: <40.000µs 📉 -36.9%) vs baseline: ~same

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

✅ with_tags_invalid

Time: ✅ 26.700µs (SLO: <40.000µs 📉 -33.3%) vs baseline: +0.6%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +5.0%

✅ with_tags_max_size

Time: ✅ 25.518µs (SLO: <40.000µs 📉 -36.2%) vs baseline: -0.2%

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

✅ iastaspectssplit - 12/12

✅ rsplit_aspect

Time: ✅ 146.983µs (SLO: <250.000µs 📉 -41.2%) vs baseline: +1.0%

Memory: ✅ 43.613MB (SLO: <46.000MB -5.2%) vs baseline: +5.0%

✅ rsplit_noaspect

Time: ✅ 150.950µs (SLO: <250.000µs 📉 -39.6%) vs baseline: +0.9%

Memory: ✅ 43.551MB (SLO: <46.000MB -5.3%) vs baseline: +4.8%

✅ split_aspect

Time: ✅ 144.985µs (SLO: <250.000µs 📉 -42.0%) vs baseline: -1.3%

Memory: ✅ 43.725MB (SLO: <46.000MB -4.9%) vs baseline: +5.4%

✅ split_noaspect

Time: ✅ 149.530µs (SLO: <250.000µs 📉 -40.2%) vs baseline: -0.5%

Memory: ✅ 43.623MB (SLO: <46.000MB -5.2%) vs baseline: +4.9%

✅ splitlines_aspect

Time: ✅ 145.946µs (SLO: <250.000µs 📉 -41.6%) vs baseline: +1.7%

Memory: ✅ 43.608MB (SLO: <46.000MB -5.2%) vs baseline: +5.0%

✅ splitlines_noaspect

Time: ✅ 150.514µs (SLO: <250.000µs 📉 -39.8%) vs baseline: +1.1%

Memory: ✅ 43.566MB (SLO: <46.000MB -5.3%) vs baseline: +4.7%

✅ iastpropagation - 8/8

✅ no-propagation

Time: ✅ 48.681µs (SLO: <60.000µs 📉 -18.9%) vs baseline: -0.7%

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

✅ propagation_enabled

Time: ✅ 137.309µs (SLO: <190.000µs 📉 -27.7%) vs baseline: -0.3%

Memory: ✅ 39.754MB (SLO: <42.000MB -5.3%) vs baseline: +4.6%

✅ propagation_enabled_100

Time: ✅ 1.591ms (SLO: <2.300ms 📉 -30.8%) vs baseline: +0.3%

Memory: ✅ 39.872MB (SLO: <42.000MB -5.1%) vs baseline: +5.1%

✅ propagation_enabled_1000

Time: ✅ 28.983ms (SLO: <34.550ms 📉 -16.1%) vs baseline: ~same

Memory: ✅ 40.108MB (SLO: <42.000MB -4.5%) vs baseline: +4.8%

✅ otelsdkspan - 24/24

✅ add-event

Time: ✅ 40.307ms (SLO: <42.000ms -4.0%) vs baseline: -0.7%

Memory: ✅ 39.086MB (SLO: <40.750MB -4.1%) vs baseline: +4.9%

✅ add-link

Time: ✅ 36.469ms (SLO: <38.550ms -5.4%) vs baseline: +0.3%

Memory: ✅ 39.125MB (SLO: <40.750MB -4.0%) vs baseline: +5.0%

✅ add-metrics

Time: ✅ 218.561ms (SLO: <232.000ms -5.8%) vs baseline: -0.2%

Memory: ✅ 39.145MB (SLO: <40.750MB -3.9%) vs baseline: +5.0%

✅ add-tags

Time: ✅ 212.339ms (SLO: <221.600ms -4.2%) vs baseline: -0.2%

Memory: ✅ 39.125MB (SLO: <40.750MB -4.0%) vs baseline: +4.8%

✅ get-context

Time: ✅ 29.194ms (SLO: <31.300ms -6.7%) vs baseline: +0.6%

Memory: ✅ 39.066MB (SLO: <40.750MB -4.1%) vs baseline: +4.6%

✅ is-recording

Time: ✅ 29.219ms (SLO: <31.000ms -5.7%) vs baseline: +0.9%

Memory: ✅ 39.164MB (SLO: <40.750MB -3.9%) vs baseline: +5.0%

✅ record-exception

Time: ✅ 63.277ms (SLO: <65.850ms -3.9%) vs baseline: ~same

Memory: ✅ 39.145MB (SLO: <40.750MB -3.9%) vs baseline: +5.0%

✅ set-status

Time: ✅ 31.860ms (SLO: <34.150ms -6.7%) vs baseline: -0.7%

Memory: ✅ 39.204MB (SLO: <40.750MB -3.8%) vs baseline: +5.1%

✅ start

Time: ✅ 29.155ms (SLO: <30.150ms -3.3%) vs baseline: +1.2%

Memory: ✅ 39.046MB (SLO: <40.750MB -4.2%) vs baseline: +4.6%

✅ start-finish

Time: ✅ 34.052ms (SLO: <35.350ms -3.7%) vs baseline: +0.4%

Memory: ✅ 39.184MB (SLO: <40.750MB -3.8%) vs baseline: +5.0%

✅ start-finish-telemetry

Time: ✅ 33.884ms (SLO: <35.450ms -4.4%) vs baseline: -0.6%

Memory: ✅ 39.164MB (SLO: <40.750MB -3.9%) vs baseline: +5.0%

✅ update-name

Time: ✅ 31.165ms (SLO: <33.400ms -6.7%) vs baseline: +0.2%

Memory: ✅ 39.125MB (SLO: <40.750MB -4.0%) vs baseline: +5.0%

✅ otelspan - 22/22

✅ add-event

Time: ✅ 40.320ms (SLO: <47.150ms 📉 -14.5%) vs baseline: ~same

Memory: ✅ 41.494MB (SLO: <47.000MB 📉 -11.7%) vs baseline: +4.9%

✅ add-metrics

Time: ✅ 252.057ms (SLO: <344.800ms 📉 -26.9%) vs baseline: ~same

Memory: ✅ 45.787MB (SLO: <47.500MB -3.6%) vs baseline: +4.7%

✅ add-tags

Time: ✅ 307.338ms (SLO: <330.000ms -6.9%) vs baseline: ~same

Memory: ✅ 45.943MB (SLO: <47.500MB -3.3%) vs baseline: +5.3%

✅ get-context

Time: ✅ 81.180ms (SLO: <92.350ms 📉 -12.1%) vs baseline: +0.2%

Memory: ✅ 41.604MB (SLO: <46.500MB 📉 -10.5%) vs baseline: +4.6%

✅ is-recording

Time: ✅ 36.658ms (SLO: <44.500ms 📉 -17.6%) vs baseline: ~same

Memory: ✅ 41.399MB (SLO: <47.500MB 📉 -12.8%) vs baseline: +5.3%

✅ record-exception

Time: ✅ 59.289ms (SLO: <67.650ms 📉 -12.4%) vs baseline: +0.1%

Memory: ✅ 41.872MB (SLO: <47.000MB 📉 -10.9%) vs baseline: +4.7%

✅ set-status

Time: ✅ 43.348ms (SLO: <50.400ms 📉 -14.0%) vs baseline: +0.8%

Memory: ✅ 41.312MB (SLO: <47.000MB 📉 -12.1%) vs baseline: +4.8%

✅ start

Time: ✅ 37.275ms (SLO: <43.450ms 📉 -14.2%) vs baseline: +3.3%

Memory: ✅ 41.349MB (SLO: <47.000MB 📉 -12.0%) vs baseline: +5.1%

✅ start-finish

Time: ✅ 85.659ms (SLO: <90.000ms -4.8%) vs baseline: +0.7%

Memory: ✅ 38.968MB (SLO: <46.500MB 📉 -16.2%) vs baseline: +5.1%

✅ start-finish-telemetry

Time: ✅ 86.839ms (SLO: <91.000ms -4.6%) vs baseline: +0.3%

Memory: ✅ 38.928MB (SLO: <46.500MB 📉 -16.3%) vs baseline: +4.9%

✅ update-name

Time: ✅ 37.828ms (SLO: <45.150ms 📉 -16.2%) vs baseline: +0.4%

Memory: ✅ 41.324MB (SLO: <47.000MB 📉 -12.1%) vs baseline: +4.9%

✅ packagespackageforrootmodulemapping - 4/4

✅ cache_off

Time: ✅ 345.962ms (SLO: <354.300ms -2.4%) vs baseline: ~same

Memory: ✅ 42.709MB (SLO: <46.000MB -7.2%) vs baseline: +6.1%

✅ cache_on

Time: ✅ 0.388µs (SLO: <10.000µs 📉 -96.1%) vs baseline: -0.6%

Memory: ✅ 41.780MB (SLO: <46.000MB -9.2%) vs baseline: +4.1%

✅ rand - 2/2

✅ rand128bits

Time: ✅ 0.184µs (SLO: <21.000µs 📉 -99.1%) vs baseline: +0.3%

✅ rand64bits

Time: ✅ 0.122µs (SLO: <15.000µs 📉 -99.2%) vs baseline: -0.4%

✅ ratelimiter - 12/12

✅ defaults

Time: ✅ 2.341µs (SLO: <10.000µs 📉 -76.6%) vs baseline: -0.3%

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +4.9%

✅ high_rate_limit

Time: ✅ 2.402µs (SLO: <10.000µs 📉 -76.0%) vs baseline: -0.9%

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

✅ long_window

Time: ✅ 2.343µs (SLO: <10.000µs 📉 -76.6%) vs baseline: -1.0%

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

✅ low_rate_limit

Time: ✅ 2.368µs (SLO: <10.000µs 📉 -76.3%) vs baseline: -0.8%

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

✅ no_rate_limit

Time: ✅ 0.832µs (SLO: <10.000µs 📉 -91.7%) vs baseline: ~same

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

✅ short_window

Time: ✅ 2.472µs (SLO: <10.000µs 📉 -75.3%) vs baseline: -1.1%

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

✅ recursivecomputation - 8/8

✅ deep

Time: ✅ 310.293ms (SLO: <320.950ms -3.3%) vs baseline: ~same

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

✅ deep-profiled

Time: ✅ 326.750ms (SLO: <359.150ms -9.0%) vs baseline: ~same

Memory: ✅ 43.588MB (SLO: <46.000MB -5.2%) vs baseline: +4.9%

✅ medium

Time: ✅ 7.140ms (SLO: <7.400ms -3.5%) vs baseline: -0.5%

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

✅ shallow

Time: ✅ 0.987ms (SLO: <1.050ms -6.0%) vs baseline: +1.7%

Memory: ✅ 36.255MB (SLO: <38.000MB -4.6%) vs baseline: +4.7%

✅ samplingrules - 8/8

✅ average_match

Time: ✅ 146.806µs (SLO: <290.000µs 📉 -49.4%) vs baseline: -0.2%

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

✅ high_match

Time: ✅ 193.636µs (SLO: <480.000µs 📉 -59.7%) vs baseline: +1.2%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +5.1%

✅ low_match

Time: ✅ 100.838µs (SLO: <120.000µs 📉 -16.0%) vs baseline: -0.2%

Memory: ✅ 701.821MB (SLO: <780.000MB 📉 -10.0%) vs baseline: +4.9%

✅ very_low_match

Time: ✅ 2.884ms (SLO: <8.500ms 📉 -66.1%) vs baseline: +0.3%

Memory: ✅ 78.970MB (SLO: <85.000MB -7.1%) vs baseline: +5.0%

✅ sethttpmeta - 32/32

✅ all-disabled

Time: ✅ 10.483µs (SLO: <20.000µs 📉 -47.6%) vs baseline: ~same

Memory: ✅ 37.139MB (SLO: <38.750MB -4.2%) vs baseline: +4.9%

✅ all-enabled

Time: ✅ 41.051µs (SLO: <50.000µs 📉 -17.9%) vs baseline: +2.3%

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

✅ collectipvariant_exists

Time: ✅ 40.780µs (SLO: <50.000µs 📉 -18.4%) vs baseline: -0.3%

Memory: ✅ 37.179MB (SLO: <38.750MB -4.1%) vs baseline: +5.0%

✅ no-collectipvariant

Time: ✅ 40.064µs (SLO: <50.000µs 📉 -19.9%) vs baseline: -0.2%

Memory: ✅ 37.120MB (SLO: <38.750MB -4.2%) vs baseline: +5.0%

✅ no-useragentvariant

Time: ✅ 38.801µs (SLO: <50.000µs 📉 -22.4%) vs baseline: -0.2%

Memory: ✅ 37.139MB (SLO: <38.750MB -4.2%) vs baseline: +4.5%

✅ obfuscation-no-query

Time: ✅ 40.669µs (SLO: <50.000µs 📉 -18.7%) vs baseline: -0.2%

Memory: ✅ 37.257MB (SLO: <38.750MB -3.9%) vs baseline: +5.2%

✅ obfuscation-regular-case-explicit-query

Time: ✅ 76.287µs (SLO: <90.000µs 📉 -15.2%) vs baseline: ~same

Memory: ✅ 37.139MB (SLO: <38.750MB -4.2%) vs baseline: +4.7%

✅ obfuscation-regular-case-implicit-query

Time: ✅ 76.726µs (SLO: <90.000µs 📉 -14.7%) vs baseline: -0.2%

Memory: ✅ 37.120MB (SLO: <38.750MB -4.2%) vs baseline: +4.4%

✅ obfuscation-send-querystring-disabled

Time: ✅ 155.246µs (SLO: <170.000µs -8.7%) vs baseline: -0.1%

Memory: ✅ 37.080MB (SLO: <38.750MB -4.3%) vs baseline: +4.7%

✅ obfuscation-worst-case-explicit-query

Time: ✅ 150.222µs (SLO: <160.000µs -6.1%) vs baseline: +0.2%

Memory: ✅ 37.277MB (SLO: <38.750MB -3.8%) vs baseline: +5.0%

✅ obfuscation-worst-case-implicit-query

Time: ✅ 156.179µs (SLO: <170.000µs -8.1%) vs baseline: +0.1%

Memory: ✅ 37.120MB (SLO: <38.750MB -4.2%) vs baseline: +4.4%

✅ useragentvariant_exists_1

Time: ✅ 39.532µs (SLO: <50.000µs 📉 -20.9%) vs baseline: -0.2%

Memory: ✅ 37.139MB (SLO: <38.750MB -4.2%) vs baseline: +4.7%

✅ useragentvariant_exists_2

Time: ✅ 40.767µs (SLO: <50.000µs 📉 -18.5%) vs baseline: +0.4%

Memory: ✅ 37.159MB (SLO: <38.750MB -4.1%) vs baseline: +4.8%

✅ useragentvariant_exists_3

Time: ✅ 40.036µs (SLO: <50.000µs 📉 -19.9%) vs baseline: -0.7%

Memory: ✅ 37.120MB (SLO: <38.750MB -4.2%) vs baseline: +4.6%

✅ useragentvariant_not_exists_1

Time: ✅ 39.537µs (SLO: <50.000µs 📉 -20.9%) vs baseline: ~same

Memory: ✅ 37.179MB (SLO: <38.750MB -4.1%) vs baseline: +4.8%

✅ useragentvariant_not_exists_2

Time: ✅ 39.535µs (SLO: <50.000µs 📉 -20.9%) vs baseline: -0.5%

Memory: ✅ 37.139MB (SLO: <38.750MB -4.2%) vs baseline: +4.8%

✅ span - 26/26

✅ add-event

Time: ✅ 18.435ms (SLO: <22.500ms 📉 -18.1%) vs baseline: -0.2%

Memory: ✅ 38.497MB (SLO: <53.000MB 📉 -27.4%) vs baseline: +4.6%

✅ add-metrics

Time: ✅ 88.287ms (SLO: <93.500ms -5.6%) vs baseline: +0.1%

Memory: ✅ 42.998MB (SLO: <53.000MB 📉 -18.9%) vs baseline: +4.9%

✅ add-tags

Time: ✅ 143.224ms (SLO: <155.000ms -7.6%) vs baseline: ~same

Memory: ✅ 43.222MB (SLO: <53.000MB 📉 -18.4%) vs baseline: +5.2%

✅ get-context

Time: ✅ 16.823ms (SLO: <20.500ms 📉 -17.9%) vs baseline: -0.3%

Memory: ✅ 38.633MB (SLO: <53.000MB 📉 -27.1%) vs baseline: +4.2%

✅ is-recording

Time: ✅ 16.929ms (SLO: <20.500ms 📉 -17.4%) vs baseline: +0.4%

Memory: ✅ 38.673MB (SLO: <53.000MB 📉 -27.0%) vs baseline: +4.9%

✅ record-exception

Time: ✅ 37.497ms (SLO: <41.000ms -8.5%) vs baseline: +0.3%

Memory: ✅ 39.049MB (SLO: <53.000MB 📉 -26.3%) vs baseline: +4.9%

✅ set-status

Time: ✅ 18.734ms (SLO: <22.000ms 📉 -14.8%) vs baseline: +0.6%

Memory: ✅ 38.673MB (SLO: <53.000MB 📉 -27.0%) vs baseline: +4.8%

✅ start

Time: ✅ 17.522ms (SLO: <20.500ms 📉 -14.5%) vs baseline: +4.8%

Memory: ✅ 38.712MB (SLO: <53.000MB 📉 -27.0%) vs baseline: +5.1%

✅ start-finish

Time: ✅ 53.377ms (SLO: <56.000ms -4.7%) vs baseline: -0.3%

Memory: ✅ 36.313MB (SLO: <38.000MB -4.4%) vs baseline: +4.9%

✅ start-finish-telemetry

Time: ✅ 54.809ms (SLO: <58.000ms -5.5%) vs baseline: +0.4%

Memory: ✅ 36.353MB (SLO: <38.000MB -4.3%) vs baseline: +5.0%

✅ start-finish-traceid128

Time: ✅ 56.117ms (SLO: <60.000ms -6.5%) vs baseline: +0.1%

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

✅ start-traceid128

Time: ✅ 16.837ms (SLO: <22.500ms 📉 -25.2%) vs baseline: +0.3%

Memory: ✅ 38.712MB (SLO: <53.000MB 📉 -27.0%) vs baseline: +4.8%

✅ update-name

Time: ✅ 17.388ms (SLO: <22.000ms 📉 -21.0%) vs baseline: +0.8%

Memory: ✅ 38.692MB (SLO: <53.000MB 📉 -27.0%) vs baseline: +5.1%

✅ telemetryaddmetric - 30/30

✅ 1-count-metric-1-times

Time: ✅ 2.303µs (SLO: <20.000µs 📉 -88.5%) vs baseline: +8.2%

Memory: ✅ 36.766MB (SLO: <38.000MB -3.2%) vs baseline: +5.0%

✅ 1-count-metrics-100-times

Time: ✅ 152.809µs (SLO: <220.000µs 📉 -30.5%) vs baseline: +0.4%

Memory: ✅ 36.608MB (SLO: <38.000MB -3.7%)

✅ 1-distribution-metric-1-times

Time: ✅ 2.408µs (SLO: <20.000µs 📉 -88.0%) vs baseline: +0.9%

Memory: ✅ 36.648MB (SLO: <38.000MB -3.6%) vs baseline: +4.9%

✅ 1-distribution-metrics-100-times

Time: ✅ 163.292µs (SLO: <230.000µs 📉 -29.0%) vs baseline: -0.3%

Memory: ✅ 36.726MB (SLO: <38.000MB -3.4%) vs baseline: +5.1%

✅ 1-gauge-metric-1-times

Time: ✅ 1.976µs (SLO: <20.000µs 📉 -90.1%) vs baseline: +1.1%

Memory: ✅ 36.628MB (SLO: <38.000MB -3.6%) vs baseline: +4.6%

✅ 1-gauge-metrics-100-times

Time: ✅ 136.255µs (SLO: <150.000µs -9.2%) vs baseline: +0.1%

Memory: ✅ 36.667MB (SLO: <38.000MB -3.5%) vs baseline: +5.0%

✅ 1-rate-metric-1-times

Time: ✅ 2.275µs (SLO: <20.000µs 📉 -88.6%) vs baseline: -0.8%

Memory: ✅ 36.667MB (SLO: <38.000MB -3.5%) vs baseline: +5.0%

✅ 1-rate-metrics-100-times

Time: ✅ 168.133µs (SLO: <250.000µs 📉 -32.7%) vs baseline: +0.2%

Memory: ✅ 36.648MB (SLO: <38.000MB -3.6%) vs baseline: +4.8%

✅ 100-count-metrics-100-times

Time: ✅ 15.356ms (SLO: <22.000ms 📉 -30.2%) vs baseline: -0.4%

Memory: ✅ 36.628MB (SLO: <38.000MB -3.6%) vs baseline: +4.6%

✅ 100-distribution-metrics-100-times

Time: ✅ 1.731ms (SLO: <2.550ms 📉 -32.1%) vs baseline: ~same

Memory: ✅ 36.707MB (SLO: <38.000MB -3.4%) vs baseline: +5.2%

✅ 100-gauge-metrics-100-times

Time: ✅ 1.391ms (SLO: <1.550ms 📉 -10.3%) vs baseline: -0.3%

Memory: ✅ 36.667MB (SLO: <38.000MB -3.5%) vs baseline: +5.0%

✅ 100-rate-metrics-100-times

Time: ✅ 1.742ms (SLO: <2.550ms 📉 -31.7%) vs baseline: -0.3%

Memory: ✅ 36.667MB (SLO: <38.000MB -3.5%) vs baseline: +4.5%

✅ flush-1-metric

Time: ✅ 3.721µs (SLO: <20.000µs 📉 -81.4%) vs baseline: -2.5%

Memory: ✅ 36.667MB (SLO: <38.000MB -3.5%) vs baseline: +4.8%

✅ flush-100-metrics

Time: ✅ 179.438µs (SLO: <250.000µs 📉 -28.2%) vs baseline: -0.5%

Memory: ✅ 36.608MB (SLO: <38.000MB -3.7%) vs baseline: +4.7%

✅ flush-1000-metrics

Time: ✅ 2.252ms (SLO: <2.500ms -9.9%) vs baseline: -0.2%

Memory: ✅ 37.415MB (SLO: <38.750MB -3.4%) vs baseline: +4.7%

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

ZStriker19 · 2026-03-27T18:23:05Z

Superseded by #17174 which targets main instead of 4.6.

ZStriker19 and others added 2 commits March 25, 2026 18:06

releasenotes: shorten llmobs graceful sigterm note

3a52a31

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

yuqiuw reviewed Mar 25, 2026

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sdwa0 reviewed Mar 26, 2026

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ZStriker19 and others added 2 commits March 26, 2026 10:11

ZStriker19 mentioned this pull request Mar 27, 2026

feat(llmobs): flush writers on SIGTERM with graceful termination period #17174

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ZStriker19 closed this Mar 27, 2026

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pr-commenter bot commented Mar 26, 2026

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

ZStriker19 commented Mar 25, 2026 •

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