perf(profiling): re-add interning #16276

KowalskiThomas · 2026-01-30T08:54:00Z

Description

Testing

Risks

Additional Notes

cit-pr-commenter-54b7da · 2026-01-30T09:01:57Z

Codeowners resolved as

riotfile.py                                                             @DataDog/apm-python
tests/profiling/test_memalloc_fork.py                                   @DataDog/profiling-python

pr-commenter · 2026-01-30T09:55:29Z

Performance SLOs

Comparing candidate kowalski/revert-fix-profiling-revert-intern-strings-functions-into-libdatadog (55ef322) with baseline main (343c6be)

📈 Performance Regressions (2 suites)

📈 iastaspectsospath - 24/24

✅ ospathbasename_aspect

Time: ✅ 491.301µs (SLO: <700.000µs 📉 -29.8%) vs baseline: 📈 +15.0%

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

✅ ospathbasename_noaspect

Time: ✅ 429.559µs (SLO: <700.000µs 📉 -38.6%) vs baseline: -0.7%

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

✅ ospathjoin_aspect

Time: ✅ 632.980µs (SLO: <700.000µs -9.6%) vs baseline: -0.3%

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

✅ ospathjoin_noaspect

Time: ✅ 638.376µs (SLO: <700.000µs -8.8%) vs baseline: -0.2%

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

✅ ospathnormcase_aspect

Time: ✅ 350.830µs (SLO: <700.000µs 📉 -49.9%) vs baseline: +0.8%

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

✅ ospathnormcase_noaspect

Time: ✅ 359.502µs (SLO: <700.000µs 📉 -48.6%) vs baseline: -0.4%

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

✅ ospathsplit_aspect

Time: ✅ 493.824µs (SLO: <700.000µs 📉 -29.5%) vs baseline: -0.6%

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

✅ ospathsplit_noaspect

Time: ✅ 504.433µs (SLO: <700.000µs 📉 -27.9%) vs baseline: -0.7%

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

✅ ospathsplitdrive_aspect

Time: ✅ 375.029µs (SLO: <700.000µs 📉 -46.4%) vs baseline: -1.0%

Memory: ✅ 42.900MB (SLO: <46.000MB -6.7%) vs baseline: +5.7%

✅ ospathsplitdrive_noaspect

Time: ✅ 73.063µs (SLO: <700.000µs 📉 -89.6%) vs baseline: ~same

Memory: ✅ 42.998MB (SLO: <46.000MB -6.5%) vs baseline: +5.0%

✅ ospathsplitext_aspect

Time: ✅ 460.028µs (SLO: <700.000µs 📉 -34.3%) vs baseline: +0.3%

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

✅ ospathsplitext_noaspect

Time: ✅ 463.865µs (SLO: <700.000µs 📉 -33.7%) vs baseline: -0.3%

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

📈 telemetryaddmetric - 30/30

✅ 1-count-metric-1-times

Time: ✅ 3.390µs (SLO: <20.000µs 📉 -83.1%) vs baseline: 📈 +17.7%

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

✅ 1-count-metrics-100-times

Time: ✅ 204.970µs (SLO: <220.000µs -6.8%) vs baseline: +0.3%

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

✅ 1-distribution-metric-1-times

Time: ✅ 3.235µs (SLO: <20.000µs 📉 -83.8%) vs baseline: ~same

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

✅ 1-distribution-metrics-100-times

Time: ✅ 214.838µs (SLO: <230.000µs -6.6%) vs baseline: +0.3%

Memory: ✅ 35.448MB (SLO: <38.000MB -6.7%) vs baseline: +4.7%

✅ 1-gauge-metric-1-times

Time: ✅ 2.143µs (SLO: <20.000µs 📉 -89.3%) vs baseline: -1.0%

Memory: ✅ 35.468MB (SLO: <38.000MB -6.7%) vs baseline: +4.6%

✅ 1-gauge-metrics-100-times

Time: ✅ 136.317µs (SLO: <150.000µs -9.1%) vs baseline: +0.2%

Memory: ✅ 35.468MB (SLO: <38.000MB -6.7%) vs baseline: +4.7%

✅ 1-rate-metric-1-times

Time: ✅ 3.030µs (SLO: <20.000µs 📉 -84.9%) vs baseline: -1.0%

Memory: ✅ 35.448MB (SLO: <38.000MB -6.7%) vs baseline: +4.6%

✅ 1-rate-metrics-100-times

Time: ✅ 218.386µs (SLO: <250.000µs 📉 -12.6%) vs baseline: ~same

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

✅ 100-count-metrics-100-times

Time: ✅ 20.615ms (SLO: <22.000ms -6.3%) vs baseline: ~same

Memory: ✅ 35.448MB (SLO: <38.000MB -6.7%) vs baseline: +4.7%

✅ 100-distribution-metrics-100-times

Time: ✅ 2.239ms (SLO: <2.550ms 📉 -12.2%) vs baseline: ~same

Memory: ✅ 35.586MB (SLO: <38.000MB -6.4%) vs baseline: +5.2%

✅ 100-gauge-metrics-100-times

Time: ✅ 1.406ms (SLO: <1.550ms -9.3%) vs baseline: +0.4%

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

✅ 100-rate-metrics-100-times

Time: ✅ 2.256ms (SLO: <2.550ms 📉 -11.5%) vs baseline: +0.3%

Memory: ✅ 35.448MB (SLO: <38.000MB -6.7%) vs baseline: +4.7%

✅ flush-1-metric

Time: ✅ 4.527µs (SLO: <20.000µs 📉 -77.4%) vs baseline: +1.0%

Memory: ✅ 35.586MB (SLO: <38.000MB -6.4%) vs baseline: +5.1%

✅ flush-100-metrics

Time: ✅ 174.387µs (SLO: <250.000µs 📉 -30.2%) vs baseline: -0.5%

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

✅ flush-1000-metrics

Time: ✅ 2.200ms (SLO: <2.500ms 📉 -12.0%) vs baseline: +0.5%

Memory: ✅ 36.333MB (SLO: <38.750MB -6.2%) vs baseline: +4.9%

🟡 Near SLO Breach (1 suite)

🟡 tracer - 6/6

✅ large

Time: ✅ 31.568ms (SLO: <32.950ms -4.2%) vs baseline: -0.2%

Memory: ✅ 36.844MB (SLO: <39.250MB -6.1%) vs baseline: +4.7%

✅ medium

Time: ✅ 3.135ms (SLO: <3.200ms -2.0%) vs baseline: +0.5%

Memory: ✅ 35.173MB (SLO: <38.750MB -9.2%) vs baseline: +4.7%

✅ small

Time: ✅ 365.556µs (SLO: <370.000µs 🟡 -1.2%) vs baseline: +3.7%

Memory: ✅ 35.232MB (SLO: <38.750MB -9.1%) vs baseline: +4.9%

⚠️ Unstable Tests (2 suites)

⚠️

coreapiscenario - 10/10 (1 unstable)

⚠️ context_with_data_listeners

Time: ⚠️ 13.228µs (SLO: <20.000µs 📉 -33.9%) vs baseline: -0.1%

Memory: ✅ 35.173MB (SLO: <38.000MB -7.4%) vs baseline: +4.9%

✅ context_with_data_no_listeners

Time: ✅ 3.257µs (SLO: <10.000µs 📉 -67.4%) vs baseline: -0.4%

Memory: ✅ 35.134MB (SLO: <38.000MB -7.5%) vs baseline: +4.9%

✅ get_item_exists

Time: ✅ 0.574µs (SLO: <10.000µs 📉 -94.3%) vs baseline: -1.5%

Memory: ✅ 35.212MB (SLO: <38.000MB -7.3%) vs baseline: +4.8%

✅ get_item_missing

Time: ✅ 0.637µs (SLO: <10.000µs 📉 -93.6%) vs baseline: -0.5%

Memory: ✅ 35.173MB (SLO: <38.000MB -7.4%) vs baseline: +4.7%

✅ set_item

Time: ✅ 23.959µs (SLO: <30.000µs 📉 -20.1%) vs baseline: -0.3%

Memory: ✅ 35.252MB (SLO: <38.000MB -7.2%) vs baseline: +5.2%

⚠️

packagesupdateimporteddependencies - 24/24 (1 unstable)

✅ import_many

Time: ✅ 154.622µs (SLO: <170.000µs -9.0%) vs baseline: -0.7%

Memory: ✅ 40.749MB (SLO: <46.000MB 📉 -11.4%) vs baseline: +6.0%

✅ import_many_cached

Time: ✅ 120.471µs (SLO: <130.000µs -7.3%) vs baseline: -0.4%

Memory: ✅ 40.651MB (SLO: <46.000MB 📉 -11.6%) vs baseline: +5.8%

✅ import_many_stdlib

Time: ✅ 0.757ms (SLO: <1.750ms 📉 -56.7%) vs baseline: -0.3%

Memory: ✅ 40.230MB (SLO: <46.000MB 📉 -12.5%) vs baseline: +4.2%

⚠️ import_many_stdlib_cached

Time: ⚠️ 0.172ms (SLO: <1.100ms 📉 -84.3%) vs baseline: -0.9%

Memory: ✅ 40.511MB (SLO: <46.000MB 📉 -11.9%) vs baseline: +5.0%

✅ import_many_unknown

Time: ✅ 824.293µs (SLO: <890.000µs -7.4%) vs baseline: -1.6%

Memory: ✅ 40.488MB (SLO: <46.000MB 📉 -12.0%) vs baseline: +5.1%

✅ import_many_unknown_cached

Time: ✅ 793.724µs (SLO: <870.000µs -8.8%) vs baseline: +0.3%

Memory: ✅ 40.487MB (SLO: <46.000MB 📉 -12.0%) vs baseline: +4.5%

✅ import_one

Time: ✅ 19.992µs (SLO: <30.000µs 📉 -33.4%) vs baseline: +0.7%

Memory: ✅ 40.311MB (SLO: <46.000MB 📉 -12.4%) vs baseline: +4.1%

✅ import_one_cache

Time: ✅ 6.296µs (SLO: <10.000µs 📉 -37.0%) vs baseline: -0.5%

Memory: ✅ 40.366MB (SLO: <46.000MB 📉 -12.2%) vs baseline: +5.3%

✅ import_one_stdlib

Time: ✅ 18.804µs (SLO: <20.000µs -6.0%) vs baseline: -0.2%

Memory: ✅ 40.326MB (SLO: <46.000MB 📉 -12.3%) vs baseline: +5.1%

✅ import_one_stdlib_cache

Time: ✅ 6.319µs (SLO: <10.000µs 📉 -36.8%) vs baseline: +0.7%

Memory: ✅ 40.316MB (SLO: <46.000MB 📉 -12.4%) vs baseline: +4.4%

✅ import_one_unknown

Time: ✅ 45.668µs (SLO: <50.000µs -8.7%) vs baseline: -0.7%

Memory: ✅ 39.912MB (SLO: <46.000MB 📉 -13.2%) vs baseline: +4.3%

✅ import_one_unknown_cache

Time: ✅ 6.272µs (SLO: <10.000µs 📉 -37.3%) vs baseline: ~same

Memory: ✅ 40.394MB (SLO: <43.000MB -6.1%) vs baseline: +4.5%

✅ All Tests Passing (19 suites)

✅ djangosimple - 30/30

✅ appsec

Time: ✅ 19.562ms (SLO: <22.300ms 📉 -12.3%) vs baseline: -0.4%

Memory: ✅ 68.813MB (SLO: <73.500MB -6.4%) vs baseline: +4.9%

✅ exception-replay-enabled

Time: ✅ 1.382ms (SLO: <1.450ms -4.7%) vs baseline: -0.9%

Memory: ✅ 66.999MB (SLO: <71.500MB -6.3%) vs baseline: +4.9%

✅ iast

Time: ✅ 19.612ms (SLO: <22.250ms 📉 -11.9%) vs baseline: -0.1%

Memory: ✅ 68.754MB (SLO: <75.000MB -8.3%) vs baseline: +4.8%

✅ profiler

Time: ✅ 15.332ms (SLO: <16.550ms -7.4%) vs baseline: ~same

Memory: ✅ 57.004MB (SLO: <61.000MB -6.6%) vs baseline: +4.8%

✅ resource-renaming

Time: ✅ 19.480ms (SLO: <21.750ms 📉 -10.4%) vs baseline: -0.4%

Memory: ✅ 68.852MB (SLO: <73.500MB -6.3%) vs baseline: +4.9%

✅ span-code-origin

Time: ✅ 20.090ms (SLO: <28.200ms 📉 -28.8%) vs baseline: +1.6%

Memory: ✅ 68.700MB (SLO: <75.000MB -8.4%) vs baseline: +4.9%

✅ tracer

Time: ✅ 19.570ms (SLO: <21.750ms 📉 -10.0%) vs baseline: -0.1%

Memory: ✅ 68.832MB (SLO: <75.000MB -8.2%) vs baseline: +4.9%

✅ tracer-and-profiler

Time: ✅ 21.647ms (SLO: <23.500ms -7.9%) vs baseline: ~same

Memory: ✅ 70.307MB (SLO: <75.000MB -6.3%) vs baseline: +4.9%

✅ tracer-dont-create-db-spans

Time: ✅ 19.766ms (SLO: <21.500ms -8.1%) vs baseline: +0.3%

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

✅ tracer-minimal

Time: ✅ 16.765ms (SLO: <17.500ms -4.2%) vs baseline: -0.5%

Memory: ✅ 68.813MB (SLO: <75.000MB -8.2%) vs baseline: +5.0%

✅ tracer-native

Time: ✅ 19.462ms (SLO: <21.750ms 📉 -10.5%) vs baseline: -0.3%

Memory: ✅ 68.793MB (SLO: <72.500MB -5.1%) vs baseline: +4.9%

✅ tracer-no-caches

Time: ✅ 17.651ms (SLO: <19.650ms 📉 -10.2%) vs baseline: +0.5%

Memory: ✅ 68.773MB (SLO: <75.000MB -8.3%) vs baseline: +4.7%

✅ tracer-no-databases

Time: ✅ 19.150ms (SLO: <20.100ms -4.7%) vs baseline: ~same

Memory: ✅ 68.773MB (SLO: <75.000MB -8.3%) vs baseline: +4.8%

✅ tracer-no-middleware

Time: ✅ 19.271ms (SLO: <21.500ms 📉 -10.4%) vs baseline: -0.4%

Memory: ✅ 68.832MB (SLO: <75.000MB -8.2%) vs baseline: +4.8%

✅ tracer-no-templates

Time: ✅ 19.712ms (SLO: <22.000ms 📉 -10.4%) vs baseline: +1.7%

Memory: ✅ 68.905MB (SLO: <73.500MB -6.3%) vs baseline: +5.0%

✅ errortrackingdjangosimple - 6/6

✅ errortracking-enabled-all

Time: ✅ 16.314ms (SLO: <19.850ms 📉 -17.8%) vs baseline: -0.4%

Memory: ✅ 70.419MB (SLO: <75.000MB -6.1%) vs baseline: +4.7%

✅ errortracking-enabled-user

Time: ✅ 16.339ms (SLO: <19.400ms 📉 -15.8%) vs baseline: ~same

Memory: ✅ 70.441MB (SLO: <75.000MB -6.1%) vs baseline: +4.5%

✅ tracer-enabled

Time: ✅ 16.318ms (SLO: <19.450ms 📉 -16.1%) vs baseline: -0.3%

Memory: ✅ 70.384MB (SLO: <75.000MB -6.2%) vs baseline: +4.7%

✅ errortrackingflasksqli - 6/6

✅ errortracking-enabled-all

Time: ✅ 2.091ms (SLO: <2.300ms -9.1%) vs baseline: -0.3%

Memory: ✅ 56.210MB (SLO: <60.000MB -6.3%) vs baseline: +4.9%

✅ errortracking-enabled-user

Time: ✅ 2.100ms (SLO: <2.250ms -6.7%) vs baseline: -0.3%

Memory: ✅ 56.289MB (SLO: <60.000MB -6.2%) vs baseline: +5.0%

✅ tracer-enabled

Time: ✅ 2.094ms (SLO: <2.300ms -8.9%) vs baseline: +0.1%

Memory: ✅ 56.210MB (SLO: <60.000MB -6.3%) vs baseline: +4.8%

✅ flasksimple - 18/18

✅ appsec-get

Time: ✅ 3.415ms (SLO: <4.750ms 📉 -28.1%) vs baseline: +0.3%

Memory: ✅ 56.300MB (SLO: <66.500MB 📉 -15.3%) vs baseline: +5.0%

✅ appsec-post

Time: ✅ 2.887ms (SLO: <6.750ms 📉 -57.2%) vs baseline: -0.1%

Memory: ✅ 56.322MB (SLO: <66.500MB 📉 -15.3%) vs baseline: +4.8%

✅ appsec-telemetry

Time: ✅ 3.430ms (SLO: <4.750ms 📉 -27.8%) vs baseline: +0.8%

Memory: ✅ 56.349MB (SLO: <66.500MB 📉 -15.3%) vs baseline: +5.1%

✅ debugger

Time: ✅ 1.868ms (SLO: <2.000ms -6.6%) vs baseline: ~same

Memory: ✅ 48.169MB (SLO: <51.500MB -6.5%) vs baseline: +5.0%

✅ iast-get

Time: ✅ 1.857ms (SLO: <2.000ms -7.1%) vs baseline: -0.1%

Memory: ✅ 45.181MB (SLO: <49.000MB -7.8%) vs baseline: +4.5%

✅ profiler

Time: ✅ 1.902ms (SLO: <2.100ms -9.4%) vs baseline: -0.5%

Memory: ✅ 49.250MB (SLO: <52.500MB -6.2%) vs baseline: +4.1%

✅ resource-renaming

Time: ✅ 3.386ms (SLO: <3.650ms -7.2%) vs baseline: +0.3%

Memory: ✅ 56.231MB (SLO: <60.000MB -6.3%) vs baseline: +4.8%

✅ tracer

Time: ✅ 3.399ms (SLO: <3.650ms -6.9%) vs baseline: ~same

Memory: ✅ 56.226MB (SLO: <60.000MB -6.3%) vs baseline: +4.7%

✅ tracer-native

Time: ✅ 3.400ms (SLO: <3.650ms -6.8%) vs baseline: +0.1%

Memory: ✅ 56.262MB (SLO: <60.000MB -6.2%) vs baseline: +4.8%

✅ flasksqli - 6/6

✅ appsec-enabled

Time: ✅ 2.086ms (SLO: <4.200ms 📉 -50.3%) vs baseline: -0.3%

Memory: ✅ 56.132MB (SLO: <66.000MB 📉 -15.0%) vs baseline: +4.7%

✅ iast-enabled

Time: ✅ 2.097ms (SLO: <2.800ms 📉 -25.1%) vs baseline: ~same

Memory: ✅ 56.269MB (SLO: <62.500MB -10.0%) vs baseline: +4.9%

✅ tracer-enabled

Time: ✅ 2.089ms (SLO: <2.250ms -7.2%) vs baseline: ~same

Memory: ✅ 56.191MB (SLO: <60.000MB -6.3%) vs baseline: +4.9%

✅ httppropagationextract - 60/60

✅ all_styles_all_headers

Time: ✅ 80.838µs (SLO: <100.000µs 📉 -19.2%) vs baseline: -0.3%

Memory: ✅ 35.429MB (SLO: <38.000MB -6.8%) vs baseline: +4.9%

✅ b3_headers

Time: ✅ 14.075µs (SLO: <20.000µs 📉 -29.6%) vs baseline: -0.5%

Memory: ✅ 35.330MB (SLO: <38.000MB -7.0%) vs baseline: +5.0%

✅ b3_single_headers

Time: ✅ 13.142µs (SLO: <20.000µs 📉 -34.3%) vs baseline: -0.2%

Memory: ✅ 35.311MB (SLO: <38.000MB -7.1%) vs baseline: +5.0%

✅ datadog_tracecontext_tracestate_not_propagated_on_trace_id_no_match

Time: ✅ 63.995µs (SLO: <80.000µs 📉 -20.0%) vs baseline: -0.3%

Memory: ✅ 35.252MB (SLO: <38.000MB -7.2%) vs baseline: +4.7%

✅ datadog_tracecontext_tracestate_propagated_on_trace_id_match

Time: ✅ 69.098µs (SLO: <80.000µs 📉 -13.6%) vs baseline: +5.1%

Memory: ✅ 35.389MB (SLO: <38.000MB -6.9%) vs baseline: +4.7%

✅ empty_headers

Time: ✅ 1.614µs (SLO: <10.000µs 📉 -83.9%) vs baseline: +0.1%

Memory: ✅ 35.802MB (SLO: <38.000MB -5.8%) vs baseline: +5.1%

✅ full_t_id_datadog_headers

Time: ✅ 22.452µs (SLO: <30.000µs 📉 -25.2%) vs baseline: -0.3%

Memory: ✅ 35.291MB (SLO: <38.000MB -7.1%) vs baseline: +4.9%

✅ invalid_priority_header

Time: ✅ 6.515µs (SLO: <10.000µs 📉 -34.9%) vs baseline: ~same

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

✅ invalid_span_id_header

Time: ✅ 6.530µs (SLO: <10.000µs 📉 -34.7%) vs baseline: +0.4%

Memory: ✅ 35.724MB (SLO: <38.000MB -6.0%) vs baseline: +5.3%

✅ invalid_tags_header

Time: ✅ 6.565µs (SLO: <10.000µs 📉 -34.4%) vs baseline: +0.5%

Memory: ✅ 35.704MB (SLO: <38.000MB -6.0%) vs baseline: +4.8%

✅ invalid_trace_id_header

Time: ✅ 6.509µs (SLO: <10.000µs 📉 -34.9%) vs baseline: ~same

Memory: ✅ 35.743MB (SLO: <38.000MB -5.9%) vs baseline: +5.3%

✅ large_header_no_matches

Time: ✅ 27.582µs (SLO: <30.000µs -8.1%) vs baseline: +0.2%

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

✅ large_valid_headers_all

Time: ✅ 28.721µs (SLO: <40.000µs 📉 -28.2%) vs baseline: +0.3%

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

✅ medium_header_no_matches

Time: ✅ 9.882µs (SLO: <20.000µs 📉 -50.6%) vs baseline: +0.6%

Memory: ✅ 35.665MB (SLO: <38.000MB -6.1%) vs baseline: +4.6%

✅ medium_valid_headers_all

Time: ✅ 11.312µs (SLO: <20.000µs 📉 -43.4%) vs baseline: +0.7%

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

✅ none_propagation_style

Time: ✅ 1.708µs (SLO: <10.000µs 📉 -82.9%) vs baseline: -0.4%

Memory: ✅ 35.684MB (SLO: <38.000MB -6.1%) vs baseline: +4.6%

✅ tracecontext_headers

Time: ✅ 34.538µs (SLO: <40.000µs 📉 -13.7%) vs baseline: ~same

Memory: ✅ 35.429MB (SLO: <38.000MB -6.8%) vs baseline: +5.0%

✅ valid_headers_all

Time: ✅ 6.531µs (SLO: <10.000µs 📉 -34.7%) vs baseline: +0.6%

Memory: ✅ 35.724MB (SLO: <38.000MB -6.0%) vs baseline: +4.9%

✅ valid_headers_basic

Time: ✅ 6.106µs (SLO: <10.000µs 📉 -38.9%) vs baseline: -0.6%

Memory: ✅ 35.724MB (SLO: <38.000MB -6.0%) vs baseline: +5.1%

✅ wsgi_empty_headers

Time: ✅ 1.611µs (SLO: <10.000µs 📉 -83.9%) vs baseline: +0.9%

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

✅ wsgi_invalid_priority_header

Time: ✅ 6.517µs (SLO: <10.000µs 📉 -34.8%) vs baseline: -0.5%

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

✅ wsgi_invalid_span_id_header

Time: ✅ 1.597µs (SLO: <10.000µs 📉 -84.0%) vs baseline: -1.2%

Memory: ✅ 35.645MB (SLO: <38.000MB -6.2%) vs baseline: +4.4%

✅ wsgi_invalid_tags_header

Time: ✅ 6.571µs (SLO: <10.000µs 📉 -34.3%) vs baseline: +0.2%

Memory: ✅ 35.822MB (SLO: <38.000MB -5.7%) vs baseline: +4.9%

✅ wsgi_invalid_trace_id_header

Time: ✅ 6.666µs (SLO: <10.000µs 📉 -33.3%) vs baseline: +1.2%

Memory: ✅ 35.684MB (SLO: <38.000MB -6.1%) vs baseline: +4.9%

✅ wsgi_large_header_no_matches

Time: ✅ 28.594µs (SLO: <40.000µs 📉 -28.5%) vs baseline: -0.7%

Memory: ✅ 35.606MB (SLO: <38.000MB -6.3%) vs baseline: +4.6%

✅ wsgi_large_valid_headers_all

Time: ✅ 29.732µs (SLO: <40.000µs 📉 -25.7%) vs baseline: -0.6%

Memory: ✅ 35.743MB (SLO: <38.000MB -5.9%) vs baseline: +5.1%

✅ wsgi_medium_header_no_matches

Time: ✅ 10.138µs (SLO: <20.000µs 📉 -49.3%) vs baseline: +0.4%

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

✅ wsgi_medium_valid_headers_all

Time: ✅ 11.568µs (SLO: <20.000µs 📉 -42.2%) vs baseline: ~same

Memory: ✅ 35.704MB (SLO: <38.000MB -6.0%) vs baseline: +4.6%

✅ wsgi_valid_headers_all

Time: ✅ 6.548µs (SLO: <10.000µs 📉 -34.5%) vs baseline: ~same

Memory: ✅ 35.783MB (SLO: <38.000MB -5.8%) vs baseline: +5.3%

✅ wsgi_valid_headers_basic

Time: ✅ 6.119µs (SLO: <10.000µs 📉 -38.8%) vs baseline: -0.5%

Memory: ✅ 35.763MB (SLO: <38.000MB -5.9%) vs baseline: +5.2%

✅ httppropagationinject - 16/16

✅ ids_only

Time: ✅ 21.745µs (SLO: <30.000µs 📉 -27.5%) vs baseline: +4.8%

Memory: ✅ 35.252MB (SLO: <38.000MB -7.2%) vs baseline: +4.7%

✅ with_all

Time: ✅ 27.670µs (SLO: <40.000µs 📉 -30.8%) vs baseline: -0.3%

Memory: ✅ 35.370MB (SLO: <38.000MB -6.9%) vs baseline: +5.1%

✅ with_dd_origin

Time: ✅ 24.347µs (SLO: <30.000µs 📉 -18.8%) vs baseline: -1.1%

Memory: ✅ 35.212MB (SLO: <38.000MB -7.3%) vs baseline: +4.3%

✅ with_priority_and_origin

Time: ✅ 23.818µs (SLO: <40.000µs 📉 -40.5%) vs baseline: -0.7%

Memory: ✅ 35.311MB (SLO: <38.000MB -7.1%) vs baseline: +4.7%

✅ with_sampling_priority

Time: ✅ 20.617µs (SLO: <30.000µs 📉 -31.3%) vs baseline: -0.7%

Memory: ✅ 35.330MB (SLO: <38.000MB -7.0%) vs baseline: +5.2%

✅ with_tags

Time: ✅ 25.831µs (SLO: <40.000µs 📉 -35.4%) vs baseline: -0.4%

Memory: ✅ 35.311MB (SLO: <38.000MB -7.1%) vs baseline: +4.9%

✅ with_tags_invalid

Time: ✅ 27.368µs (SLO: <40.000µs 📉 -31.6%) vs baseline: -0.2%

Memory: ✅ 35.291MB (SLO: <38.000MB -7.1%) vs baseline: +4.7%

✅ with_tags_max_size

Time: ✅ 26.335µs (SLO: <40.000µs 📉 -34.2%) vs baseline: -0.2%

Memory: ✅ 35.291MB (SLO: <38.000MB -7.1%) vs baseline: +4.8%

✅ iast_aspects - 40/40

✅ re_expand_aspect

Time: ✅ 3.692ms (SLO: <4.880ms 📉 -24.4%) vs baseline: +5.7%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +5.3%

✅ re_expand_noaspect

Time: ✅ 3.485ms (SLO: <4.620ms 📉 -24.6%) vs baseline: +0.1%

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

✅ re_findall_aspect

Time: ✅ 336.232µs (SLO: <450.000µs 📉 -25.3%) vs baseline: -0.3%

Memory: ✅ 43.018MB (SLO: <46.000MB -6.5%) vs baseline: +5.3%

✅ re_findall_noaspect

Time: ✅ 321.392µs (SLO: <430.000µs 📉 -25.3%) vs baseline: +0.1%

Memory: ✅ 42.959MB (SLO: <46.000MB -6.6%) vs baseline: +5.1%

✅ re_finditer_aspect

Time: ✅ 450.645µs (SLO: <590.000µs 📉 -23.6%) vs baseline: ~same

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

✅ re_finditer_noaspect

Time: ✅ 327.483µs (SLO: <440.000µs 📉 -25.6%) vs baseline: +0.5%

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

✅ re_fullmatch_aspect

Time: ✅ 273.874µs (SLO: <360.000µs 📉 -23.9%) vs baseline: ~same

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

✅ re_fullmatch_noaspect

Time: ✅ 302.988µs (SLO: <400.000µs 📉 -24.3%) vs baseline: +0.8%

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

✅ re_group_aspect

Time: ✅ 474.918µs (SLO: <630.000µs 📉 -24.6%) vs baseline: +0.5%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +5.2%

✅ re_group_noaspect

Time: ✅ 479.199µs (SLO: <640.000µs 📉 -25.1%) vs baseline: +0.6%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +5.1%

✅ re_groups_aspect

Time: ✅ 487.493µs (SLO: <650.000µs 📉 -25.0%) vs baseline: +0.9%

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +5.4%

✅ re_groups_noaspect

Time: ✅ 491.534µs (SLO: <650.000µs 📉 -24.4%) vs baseline: +0.6%

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

✅ re_match_aspect

Time: ✅ 275.173µs (SLO: <370.000µs 📉 -25.6%) vs baseline: -1.0%

Memory: ✅ 42.998MB (SLO: <46.000MB -6.5%) vs baseline: +5.4%

✅ re_match_noaspect

Time: ✅ 302.213µs (SLO: <410.000µs 📉 -26.3%) vs baseline: +1.0%

Memory: ✅ 42.880MB (SLO: <46.000MB -6.8%) vs baseline: +4.9%

✅ re_search_aspect

Time: ✅ 271.518µs (SLO: <350.000µs 📉 -22.4%) vs baseline: +5.2%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +5.5%

✅ re_search_noaspect

Time: ✅ 283.411µs (SLO: <380.000µs 📉 -25.4%) vs baseline: ~same

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.6%

✅ re_sub_aspect

Time: ✅ 351.813µs (SLO: <460.000µs 📉 -23.5%) vs baseline: +0.2%

Memory: ✅ 42.959MB (SLO: <46.000MB -6.6%) vs baseline: +5.5%

✅ re_sub_noaspect

Time: ✅ 392.163µs (SLO: <520.000µs 📉 -24.6%) vs baseline: +0.2%

Memory: ✅ 42.998MB (SLO: <46.000MB -6.5%) vs baseline: +5.5%

✅ re_subn_aspect

Time: ✅ 371.801µs (SLO: <490.000µs 📉 -24.1%) vs baseline: ~same

Memory: ✅ 42.979MB (SLO: <46.000MB -6.6%) vs baseline: +5.5%

✅ re_subn_noaspect

Time: ✅ 407.620µs (SLO: <530.000µs 📉 -23.1%) vs baseline: ~same

Memory: ✅ 42.900MB (SLO: <46.000MB -6.7%) vs baseline: +5.3%

✅ iastaspects - 118/118

✅ add_aspect

Time: ✅ 110.016µs (SLO: <130.000µs 📉 -15.4%) vs baseline: +2.9%

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

✅ add_inplace_aspect

Time: ✅ 106.488µs (SLO: <130.000µs 📉 -18.1%) vs baseline: +0.1%

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

✅ add_inplace_noaspect

Time: ✅ 28.289µs (SLO: <40.000µs 📉 -29.3%) vs baseline: +0.3%

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

✅ add_noaspect

Time: ✅ 49.026µs (SLO: <70.000µs 📉 -30.0%) vs baseline: +0.3%

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

✅ bytearray_aspect

Time: ✅ 257.123µs (SLO: <400.000µs 📉 -35.7%) vs baseline: +0.6%

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

✅ bytearray_extend_aspect

Time: ✅ 638.683µs (SLO: <800.000µs 📉 -20.2%) vs baseline: -0.7%

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

✅ bytearray_extend_noaspect

Time: ✅ 268.450µs (SLO: <400.000µs 📉 -32.9%) vs baseline: ~same

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

✅ bytearray_noaspect

Time: ✅ 141.271µs (SLO: <300.000µs 📉 -52.9%) vs baseline: +1.6%

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

✅ bytes_aspect

Time: ✅ 216.258µs (SLO: <300.000µs 📉 -27.9%) vs baseline: -1.7%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.6%

✅ bytes_noaspect

Time: ✅ 131.923µs (SLO: <200.000µs 📉 -34.0%) vs baseline: -1.0%

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

✅ bytesio_aspect

Time: ✅ 3.897ms (SLO: <5.000ms 📉 -22.1%) vs baseline: ~same

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

✅ bytesio_noaspect

Time: ✅ 314.620µs (SLO: <420.000µs 📉 -25.1%) vs baseline: -0.8%

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

✅ capitalize_aspect

Time: ✅ 89.416µs (SLO: <300.000µs 📉 -70.2%) vs baseline: +1.3%

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

✅ capitalize_noaspect

Time: ✅ 253.129µs (SLO: <300.000µs 📉 -15.6%) vs baseline: +0.3%

Memory: ✅ 42.998MB (SLO: <46.000MB -6.5%) vs baseline: +5.0%

✅ casefold_aspect

Time: ✅ 89.014µs (SLO: <500.000µs 📉 -82.2%) vs baseline: +0.4%

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

✅ casefold_noaspect

Time: ✅ 321.443µs (SLO: <500.000µs 📉 -35.7%) vs baseline: +5.3%

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

✅ decode_aspect

Time: ✅ 87.991µs (SLO: <100.000µs 📉 -12.0%) vs baseline: +0.7%

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

✅ decode_noaspect

Time: ✅ 151.659µs (SLO: <210.000µs 📉 -27.8%) vs baseline: +0.8%

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

✅ encode_aspect

Time: ✅ 85.634µs (SLO: <200.000µs 📉 -57.2%) vs baseline: +0.6%

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

✅ encode_noaspect

Time: ✅ 138.468µs (SLO: <200.000µs 📉 -30.8%) vs baseline: +0.8%

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

✅ format_aspect

Time: ✅ 14.672ms (SLO: <19.200ms 📉 -23.6%) vs baseline: ~same

Memory: ✅ 43.136MB (SLO: <46.000MB -6.2%) vs baseline: +4.8%

✅ format_map_aspect

Time: ✅ 16.565ms (SLO: <21.500ms 📉 -23.0%) vs baseline: +0.5%

Memory: ✅ 42.998MB (SLO: <46.000MB -6.5%) vs baseline: +4.7%

✅ format_map_noaspect

Time: ✅ 377.787µs (SLO: <500.000µs 📉 -24.4%) vs baseline: +1.6%

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +4.7%

✅ format_noaspect

Time: ✅ 307.485µs (SLO: <500.000µs 📉 -38.5%) vs baseline: -0.6%

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

✅ index_aspect

Time: ✅ 126.176µs (SLO: <300.000µs 📉 -57.9%) vs baseline: +1.3%

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

✅ index_noaspect

Time: ✅ 40.430µs (SLO: <300.000µs 📉 -86.5%) vs baseline: -1.2%

Memory: ✅ 42.920MB (SLO: <46.000MB -6.7%) vs baseline: +4.6%

✅ join_aspect

Time: ✅ 213.770µs (SLO: <300.000µs 📉 -28.7%) vs baseline: -1.1%

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

✅ join_noaspect

Time: ✅ 141.135µs (SLO: <300.000µs 📉 -53.0%) vs baseline: -0.9%

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

✅ ljust_aspect

Time: ✅ 508.411µs (SLO: <700.000µs 📉 -27.4%) vs baseline: +0.7%

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

✅ ljust_noaspect

Time: ✅ 264.881µs (SLO: <300.000µs 📉 -11.7%) vs baseline: +0.3%

Memory: ✅ 42.998MB (SLO: <46.000MB -6.5%) vs baseline: +5.0%

✅ lower_aspect

Time: ✅ 299.613µs (SLO: <500.000µs 📉 -40.1%) vs baseline: -0.1%

Memory: ✅ 42.998MB (SLO: <46.000MB -6.5%) vs baseline: +5.0%

✅ lower_noaspect

Time: ✅ 233.339µs (SLO: <300.000µs 📉 -22.2%) vs baseline: -1.0%

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

✅ lstrip_aspect

Time: ✅ 0.271ms (SLO: <3.000ms 📉 -91.0%) vs baseline: +0.3%

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

✅ lstrip_noaspect

Time: ✅ 0.177ms (SLO: <3.000ms 📉 -94.1%) vs baseline: -0.2%

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

✅ modulo_aspect

Time: ✅ 14.324ms (SLO: <18.750ms 📉 -23.6%) vs baseline: ~same

Memory: ✅ 43.077MB (SLO: <46.000MB -6.4%) vs baseline: +4.7%

✅ modulo_aspect_for_bytearray_bytearray

Time: ✅ 14.841ms (SLO: <19.350ms 📉 -23.3%) vs baseline: -0.1%

Memory: ✅ 43.175MB (SLO: <46.000MB -6.1%) vs baseline: +4.8%

✅ modulo_aspect_for_bytes

Time: ✅ 14.474ms (SLO: <18.900ms 📉 -23.4%) vs baseline: ~same

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

✅ modulo_aspect_for_bytes_bytearray

Time: ✅ 14.886ms (SLO: <19.150ms 📉 -22.3%) vs baseline: +1.5%

Memory: ✅ 43.096MB (SLO: <46.000MB -6.3%) vs baseline: +4.7%

✅ modulo_noaspect

Time: ✅ 0.375ms (SLO: <3.000ms 📉 -87.5%) vs baseline: +1.1%

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

✅ replace_aspect

Time: ✅ 18.494ms (SLO: <24.000ms 📉 -22.9%) vs baseline: +0.2%

Memory: ✅ 43.195MB (SLO: <46.000MB -6.1%) vs baseline: +5.1%

✅ replace_noaspect

Time: ✅ 282.601µs (SLO: <300.000µs -5.8%) vs baseline: +0.5%

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

✅ repr_aspect

Time: ✅ 310.569µs (SLO: <420.000µs 📉 -26.1%) vs baseline: -0.5%

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

✅ repr_noaspect

Time: ✅ 46.595µs (SLO: <90.000µs 📉 -48.2%) vs baseline: -0.4%

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

✅ rstrip_aspect

Time: ✅ 382.350µs (SLO: <500.000µs 📉 -23.5%) vs baseline: -0.1%

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

✅ rstrip_noaspect

Time: ✅ 183.741µs (SLO: <300.000µs 📉 -38.8%) vs baseline: -0.8%

Memory: ✅ 42.900MB (SLO: <46.000MB -6.7%) vs baseline: +4.6%

✅ slice_aspect

Time: ✅ 186.196µs (SLO: <300.000µs 📉 -37.9%) vs baseline: ~same

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

✅ slice_noaspect

Time: ✅ 53.978µs (SLO: <90.000µs 📉 -40.0%) vs baseline: +0.9%

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

✅ stringio_aspect

Time: ✅ 3.941ms (SLO: <5.000ms 📉 -21.2%) vs baseline: -0.5%

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +4.7%

✅ stringio_noaspect

Time: ✅ 346.178µs (SLO: <500.000µs 📉 -30.8%) vs baseline: +0.7%

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

✅ strip_aspect

Time: ✅ 267.346µs (SLO: <350.000µs 📉 -23.6%) vs baseline: -0.9%

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

✅ strip_noaspect

Time: ✅ 177.490µs (SLO: <240.000µs 📉 -26.0%) vs baseline: +0.5%

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

✅ swapcase_aspect

Time: ✅ 341.479µs (SLO: <500.000µs 📉 -31.7%) vs baseline: +0.6%

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

✅ swapcase_noaspect

Time: ✅ 285.370µs (SLO: <400.000µs 📉 -28.7%) vs baseline: +4.8%

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

✅ title_aspect

Time: ✅ 329.100µs (SLO: <500.000µs 📉 -34.2%) vs baseline: +0.4%

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

✅ title_noaspect

Time: ✅ 262.795µs (SLO: <400.000µs 📉 -34.3%) vs baseline: -0.4%

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

✅ translate_aspect

Time: ✅ 492.795µs (SLO: <700.000µs 📉 -29.6%) vs baseline: -0.1%

Memory: ✅ 42.979MB (SLO: <46.000MB -6.6%) vs baseline: +4.9%

✅ translate_noaspect

Time: ✅ 423.523µs (SLO: <500.000µs 📉 -15.3%) vs baseline: -1.8%

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +4.7%

✅ upper_aspect

Time: ✅ 302.175µs (SLO: <500.000µs 📉 -39.6%) vs baseline: ~same

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

✅ upper_noaspect

Time: ✅ 235.248µs (SLO: <400.000µs 📉 -41.2%) vs baseline: +0.1%

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

✅ iastaspectssplit - 12/12

✅ rsplit_aspect

Time: ✅ 161.220µs (SLO: <250.000µs 📉 -35.5%) vs baseline: +7.3%

Memory: ✅ 42.939MB (SLO: <46.000MB -6.7%) vs baseline: +4.5%

✅ rsplit_noaspect

Time: ✅ 156.826µs (SLO: <250.000µs 📉 -37.3%) vs baseline: +0.1%

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

✅ split_aspect

Time: ✅ 149.693µs (SLO: <250.000µs 📉 -40.1%) vs baseline: +0.6%

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

✅ split_noaspect

Time: ✅ 155.489µs (SLO: <250.000µs 📉 -37.8%) vs baseline: +1.6%

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

✅ splitlines_aspect

Time: ✅ 145.378µs (SLO: <250.000µs 📉 -41.8%) vs baseline: +0.9%

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

✅ splitlines_noaspect

Time: ✅ 150.305µs (SLO: <250.000µs 📉 -39.9%) vs baseline: +0.6%

Memory: ✅ 42.880MB (SLO: <46.000MB -6.8%) vs baseline: +4.6%

✅ iastpropagation - 8/8

✅ no-propagation

Time: ✅ 49.080µs (SLO: <60.000µs 📉 -18.2%) vs baseline: +0.6%

Memory: ✅ 39.046MB (SLO: <42.000MB -7.0%) vs baseline: +4.9%

✅ propagation_enabled

Time: ✅ 135.460µs (SLO: <190.000µs 📉 -28.7%) vs baseline: +0.8%

Memory: ✅ 39.007MB (SLO: <42.000MB -7.1%) vs baseline: +4.9%

✅ propagation_enabled_100

Time: ✅ 1.552ms (SLO: <2.300ms 📉 -32.5%) vs baseline: ~same

Memory: ✅ 38.987MB (SLO: <42.000MB -7.2%) vs baseline: +5.0%

✅ propagation_enabled_1000

Time: ✅ 28.660ms (SLO: <34.550ms 📉 -17.0%) vs baseline: -0.9%

Memory: ✅ 38.968MB (SLO: <42.000MB -7.2%) vs baseline: +4.8%

✅ otelsdkspan - 24/24

✅ add-event

Time: ✅ 40.483ms (SLO: <42.000ms -3.6%) vs baseline: +0.2%

Memory: ✅ 38.142MB (SLO: <40.750MB -6.4%) vs baseline: +4.9%

✅ add-link

Time: ✅ 36.511ms (SLO: <38.550ms -5.3%) vs baseline: +0.3%

Memory: ✅ 38.063MB (SLO: <40.750MB -6.6%) vs baseline: +4.9%

✅ add-metrics

Time: ✅ 221.527ms (SLO: <232.000ms -4.5%) vs baseline: +1.7%

Memory: ✅ 37.985MB (SLO: <40.750MB -6.8%) vs baseline: +4.6%

✅ add-tags

Time: ✅ 210.911ms (SLO: <221.600ms -4.8%) vs baseline: -0.7%

Memory: ✅ 38.122MB (SLO: <40.750MB -6.4%) vs baseline: +5.1%

✅ get-context

Time: ✅ 29.258ms (SLO: <31.300ms -6.5%) vs baseline: -0.2%

Memory: ✅ 38.103MB (SLO: <40.750MB -6.5%) vs baseline: +4.9%

✅ is-recording

Time: ✅ 29.336ms (SLO: <31.000ms -5.4%) vs baseline: ~same

Memory: ✅ 38.063MB (SLO: <40.750MB -6.6%) vs baseline: +4.6%

✅ record-exception

Time: ✅ 63.181ms (SLO: <65.850ms -4.1%) vs baseline: -0.4%

Memory: ✅ 38.063MB (SLO: <40.750MB -6.6%) vs baseline: +4.6%

✅ set-status

Time: ✅ 31.940ms (SLO: <34.150ms -6.5%) vs baseline: +0.5%

Memory: ✅ 38.063MB (SLO: <40.750MB -6.6%) vs baseline: +4.8%

✅ start

Time: ✅ 29.483ms (SLO: <30.150ms -2.2%) vs baseline: +1.4%

Memory: ✅ 37.985MB (SLO: <40.750MB -6.8%) vs baseline: +4.6%

✅ start-finish

Time: ✅ 34.084ms (SLO: <35.350ms -3.6%) vs baseline: -0.3%

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

✅ start-finish-telemetry

Time: ✅ 34.171ms (SLO: <35.450ms -3.6%) vs baseline: +0.6%

Memory: ✅ 38.122MB (SLO: <40.750MB -6.4%) vs baseline: +5.1%

✅ update-name

Time: ✅ 31.154ms (SLO: <33.400ms -6.7%) vs baseline: -0.3%

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

✅ otelspan - 22/22

✅ add-event

Time: ✅ 43.276ms (SLO: <47.150ms -8.2%) vs baseline: +0.3%

Memory: ✅ 40.481MB (SLO: <47.000MB 📉 -13.9%) vs baseline: +4.9%

✅ add-metrics

Time: ✅ 259.528ms (SLO: <344.800ms 📉 -24.7%) vs baseline: -0.8%

Memory: ✅ 44.908MB (SLO: <47.500MB -5.5%) vs baseline: +5.0%

✅ add-tags

Time: ✅ 317.255ms (SLO: <330.000ms -3.9%) vs baseline: -0.4%

Memory: ✅ 44.885MB (SLO: <47.500MB -5.5%) vs baseline: +4.9%

✅ get-context

Time: ✅ 83.156ms (SLO: <92.350ms -10.0%) vs baseline: +0.2%

Memory: ✅ 40.721MB (SLO: <46.500MB 📉 -12.4%) vs baseline: +5.0%

✅ is-recording

Time: ✅ 39.498ms (SLO: <44.500ms 📉 -11.2%) vs baseline: ~same

Memory: ✅ 40.462MB (SLO: <47.500MB 📉 -14.8%) vs baseline: +5.3%

✅ record-exception

Time: ✅ 62.004ms (SLO: <67.650ms -8.3%) vs baseline: ~same

Memory: ✅ 40.874MB (SLO: <47.000MB 📉 -13.0%) vs baseline: +5.0%

✅ set-status

Time: ✅ 45.923ms (SLO: <50.400ms -8.9%) vs baseline: -0.1%

Memory: ✅ 40.325MB (SLO: <47.000MB 📉 -14.2%) vs baseline: +4.8%

✅ start

Time: ✅ 40.152ms (SLO: <43.450ms -7.6%) vs baseline: +3.8%

Memory: ✅ 40.259MB (SLO: <47.000MB 📉 -14.3%) vs baseline: +4.6%

✅ start-finish

Time: ✅ 86.778ms (SLO: <90.000ms -3.6%) vs baseline: -0.3%

Memory: ✅ 37.847MB (SLO: <46.500MB 📉 -18.6%) vs baseline: +5.1%

✅ start-finish-telemetry

Time: ✅ 88.317ms (SLO: <91.000ms -2.9%) vs baseline: ~same

Memory: ✅ 37.808MB (SLO: <46.500MB 📉 -18.7%) vs baseline: +4.7%

✅ update-name

Time: ✅ 40.319ms (SLO: <45.150ms 📉 -10.7%) vs baseline: -0.2%

Memory: ✅ 40.279MB (SLO: <47.000MB 📉 -14.3%) vs baseline: +4.5%

✅ packagespackageforrootmodulemapping - 4/4

✅ cache_off

Time: ✅ 343.825ms (SLO: <354.300ms -3.0%) vs baseline: +0.1%

Memory: ✅ 41.178MB (SLO: <46.000MB 📉 -10.5%) vs baseline: +5.9%

✅ cache_on

Time: ✅ 0.384µs (SLO: <10.000µs 📉 -96.2%) vs baseline: +0.1%

Memory: ✅ 39.997MB (SLO: <46.000MB 📉 -13.0%) vs baseline: +5.3%

✅ ratelimiter - 12/12

✅ defaults

Time: ✅ 2.360µs (SLO: <10.000µs 📉 -76.4%) vs baseline: ~same

Memory: ✅ 35.507MB (SLO: <38.000MB -6.6%) vs baseline: +4.8%

✅ high_rate_limit

Time: ✅ 2.438µs (SLO: <10.000µs 📉 -75.6%) vs baseline: +0.8%

Memory: ✅ 35.488MB (SLO: <38.000MB -6.6%) vs baseline: +4.5%

✅ long_window

Time: ✅ 2.366µs (SLO: <10.000µs 📉 -76.3%) vs baseline: ~same

Memory: ✅ 35.527MB (SLO: <38.000MB -6.5%) vs baseline: +4.7%

✅ low_rate_limit

Time: ✅ 2.382µs (SLO: <10.000µs 📉 -76.2%) vs baseline: -0.3%

Memory: ✅ 35.547MB (SLO: <38.000MB -6.5%) vs baseline: +5.1%

✅ no_rate_limit

Time: ✅ 0.848µs (SLO: <10.000µs 📉 -91.5%) vs baseline: +1.5%

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

✅ short_window

Time: ✅ 2.503µs (SLO: <10.000µs 📉 -75.0%) vs baseline: +0.3%

Memory: ✅ 35.468MB (SLO: <38.000MB -6.7%) vs baseline: +4.8%

✅ recursivecomputation - 8/8

✅ deep

Time: ✅ 311.218ms (SLO: <320.950ms -3.0%) vs baseline: +0.6%

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

✅ deep-profiled

Time: ✅ 327.468ms (SLO: <359.150ms -8.8%) vs baseline: ~same

Memory: ✅ 40.619MB (SLO: <46.000MB 📉 -11.7%) vs baseline: +4.6%

✅ medium

Time: ✅ 7.155ms (SLO: <7.400ms -3.3%) vs baseline: +0.3%

Memory: ✅ 35.586MB (SLO: <38.000MB -6.4%) vs baseline: +5.0%

✅ shallow

Time: ✅ 0.986ms (SLO: <1.050ms -6.1%) vs baseline: +1.9%

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

✅ samplingrules - 8/8

✅ average_match

Time: ✅ 147.343µs (SLO: <290.000µs 📉 -49.2%) vs baseline: +0.4%

Memory: ✅ 35.193MB (SLO: <38.000MB -7.4%) vs baseline: +4.8%

✅ high_match

Time: ✅ 190.034µs (SLO: <480.000µs 📉 -60.4%) vs baseline: -0.5%

Memory: ✅ 35.232MB (SLO: <38.000MB -7.3%) vs baseline: +4.7%

✅ low_match

Time: ✅ 100.037µs (SLO: <120.000µs 📉 -16.6%) vs baseline: +1.4%

Memory: ✅ 732.370MB (SLO: <780.000MB -6.1%) vs baseline: +4.9%

✅ very_low_match

Time: ✅ 2.860ms (SLO: <8.500ms 📉 -66.4%) vs baseline: +0.3%

Memory: ✅ 79.815MB (SLO: <85.000MB -6.1%) vs baseline: +4.9%

✅ sethttpmeta - 32/32

✅ all-disabled

Time: ✅ 10.471µs (SLO: <20.000µs 📉 -47.6%) vs baseline: -0.8%

Memory: ✅ 36.176MB (SLO: <38.750MB -6.6%) vs baseline: +5.2%

✅ all-enabled

Time: ✅ 41.034µs (SLO: <50.000µs 📉 -17.9%) vs baseline: +1.7%

Memory: ✅ 36.038MB (SLO: <38.750MB -7.0%) vs baseline: +4.7%

✅ collectipvariant_exists

Time: ✅ 40.791µs (SLO: <50.000µs 📉 -18.4%) vs baseline: -0.3%

Memory: ✅ 36.038MB (SLO: <38.750MB -7.0%) vs baseline: +4.7%

✅ no-collectipvariant

Time: ✅ 40.094µs (SLO: <50.000µs 📉 -19.8%) vs baseline: ~same

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

✅ no-useragentvariant

Time: ✅ 38.918µs (SLO: <50.000µs 📉 -22.2%) vs baseline: -0.4%

Memory: ✅ 36.038MB (SLO: <38.750MB -7.0%) vs baseline: +4.9%

✅ obfuscation-no-query

Time: ✅ 40.690µs (SLO: <50.000µs 📉 -18.6%) vs baseline: -0.1%

Memory: ✅ 36.038MB (SLO: <38.750MB -7.0%) vs baseline: +5.0%

✅ obfuscation-regular-case-explicit-query

Time: ✅ 75.762µs (SLO: <90.000µs 📉 -15.8%) vs baseline: -0.4%

Memory: ✅ 36.058MB (SLO: <38.750MB -6.9%) vs baseline: +4.5%

✅ obfuscation-regular-case-implicit-query

Time: ✅ 76.460µs (SLO: <90.000µs 📉 -15.0%) vs baseline: +0.3%

Memory: ✅ 36.117MB (SLO: <38.750MB -6.8%) vs baseline: +4.6%

✅ obfuscation-send-querystring-disabled

Time: ✅ 154.649µs (SLO: <170.000µs -9.0%) vs baseline: +0.3%

Memory: ✅ 36.156MB (SLO: <38.750MB -6.7%) vs baseline: +5.0%

✅ obfuscation-worst-case-explicit-query

Time: ✅ 149.017µs (SLO: <160.000µs -6.9%) vs baseline: +0.5%

Memory: ✅ 36.176MB (SLO: <38.750MB -6.6%) vs baseline: +5.3%

✅ obfuscation-worst-case-implicit-query

Time: ✅ 155.518µs (SLO: <170.000µs -8.5%) vs baseline: +0.2%

Memory: ✅ 36.176MB (SLO: <38.750MB -6.6%) vs baseline: +4.6%

✅ useragentvariant_exists_1

Time: ✅ 39.651µs (SLO: <50.000µs 📉 -20.7%) vs baseline: +0.2%

Memory: ✅ 36.078MB (SLO: <38.750MB -6.9%) vs baseline: +4.6%

✅ useragentvariant_exists_2

Time: ✅ 40.640µs (SLO: <50.000µs 📉 -18.7%) vs baseline: -0.2%

Memory: ✅ 36.038MB (SLO: <38.750MB -7.0%) vs baseline: +4.7%

✅ useragentvariant_exists_3

Time: ✅ 40.358µs (SLO: <50.000µs 📉 -19.3%) vs baseline: +0.5%

Memory: ✅ 36.117MB (SLO: <38.750MB -6.8%) vs baseline: +5.0%

✅ useragentvariant_not_exists_1

Time: ✅ 39.818µs (SLO: <50.000µs 📉 -20.4%) vs baseline: +0.6%

Memory: ✅ 36.078MB (SLO: <38.750MB -6.9%) vs baseline: +5.3%

✅ useragentvariant_not_exists_2

Time: ✅ 39.489µs (SLO: <50.000µs 📉 -21.0%) vs baseline: -0.5%

Memory: ✅ 36.117MB (SLO: <38.750MB -6.8%) vs baseline: +5.0%

✅ span - 26/26

✅ add-event

Time: ✅ 20.332ms (SLO: <22.500ms -9.6%) vs baseline: +0.5%

Memory: ✅ 37.666MB (SLO: <53.000MB 📉 -28.9%) vs baseline: +5.1%

✅ add-metrics

Time: ✅ 89.193ms (SLO: <93.500ms -4.6%) vs baseline: -1.0%

Memory: ✅ 41.976MB (SLO: <53.000MB 📉 -20.8%) vs baseline: +4.7%

✅ add-tags

Time: ✅ 143.472ms (SLO: <155.000ms -7.4%) vs baseline: +0.2%

Memory: ✅ 42.045MB (SLO: <53.000MB 📉 -20.7%) vs baseline: +4.9%

✅ get-context

Time: ✅ 18.101ms (SLO: <20.500ms 📉 -11.7%) vs baseline: -0.5%

Memory: ✅ 37.611MB (SLO: <53.000MB 📉 -29.0%) vs baseline: +5.0%

✅ is-recording

Time: ✅ 18.525ms (SLO: <20.500ms -9.6%) vs baseline: -0.1%

Memory: ✅ 37.631MB (SLO: <53.000MB 📉 -29.0%) vs baseline: +4.8%

✅ record-exception

Time: ✅ 39.745ms (SLO: <41.000ms -3.1%) vs baseline: ~same

Memory: ✅ 38.144MB (SLO: <53.000MB 📉 -28.0%) vs baseline: +5.1%

✅ set-status

Time: ✅ 19.948ms (SLO: <22.000ms -9.3%) vs baseline: ~same

Memory: ✅ 37.808MB (SLO: <53.000MB 📉 -28.7%) vs baseline: +5.6%

✅ start

Time: ✅ 18.815ms (SLO: <20.500ms -8.2%) vs baseline: +4.4%

Memory: ✅ 37.650MB (SLO: <53.000MB 📉 -29.0%) vs baseline: +5.2%

✅ start-finish

Time: ✅ 54.251ms (SLO: <56.000ms -3.1%) vs baseline: +0.1%

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

✅ start-finish-telemetry

Time: ✅ 55.369ms (SLO: <58.000ms -4.5%) vs baseline: -0.2%

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

✅ start-finish-traceid128

Time: ✅ 57.470ms (SLO: <60.000ms -4.2%) vs baseline: +0.2%

Memory: ✅ 35.586MB (SLO: <38.000MB -6.4%) vs baseline: +4.9%

✅ start-traceid128

Time: ✅ 18.549ms (SLO: <22.500ms 📉 -17.6%) vs baseline: ~same

Memory: ✅ 37.709MB (SLO: <53.000MB 📉 -28.9%) vs baseline: +4.9%

✅ update-name

Time: ✅ 18.603ms (SLO: <22.000ms 📉 -15.4%) vs baseline: +0.3%

Memory: ✅ 37.513MB (SLO: <53.000MB 📉 -29.2%) vs baseline: +4.6%

ℹ️ Scenarios Missing SLO Configuration (26 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
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

tests/profiling/test_memalloc_fork.py

This reverts commit 1bf2707.

fix(profiling): clear allocations using pthread_atfork child handler

cc0db16

KowalskiThomas changed the title ~~Kowalski/revert fix profiling revert intern strings functions into libdatadog~~ perf(profiling): re-add interning Jan 30, 2026

KowalskiThomas mentioned this pull request Jan 30, 2026

fix(profiling): clear heap profiler states after fork #16257

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KowalskiThomas force-pushed the kowalski/revert-fix-profiling-revert-intern-strings-functions-into-libdatadog branch from cc817b5 to 7ac56b0 Compare January 30, 2026 09:16

taegyunkim reviewed Jan 30, 2026

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tests/profiling/test_memalloc_fork.py Show resolved Hide resolved

KowalskiThomas force-pushed the kowalski/revert-fix-profiling-revert-intern-strings-functions-into-libdatadog branch from 7ac56b0 to c427efd Compare January 30, 2026 15:02

KowalskiThomas added 2 commits January 30, 2026 17:14

perf(profiling): intern strings/functions into libdatadog

ff261de

This reverts commit 1bf2707.

test(profiling): add test_memalloc_fork.py

55ef322

KowalskiThomas force-pushed the kowalski/revert-fix-profiling-revert-intern-strings-functions-into-libdatadog branch from c427efd to 55ef322 Compare January 30, 2026 16:14

perf(profiling): re-add interning #16276

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perf(profiling): re-add interning #16276

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Performance SLOs

✅ ospathbasename_aspect

✅ ospathbasename_noaspect

✅ ospathjoin_aspect

✅ ospathjoin_noaspect

✅ ospathnormcase_aspect

✅ ospathnormcase_noaspect

✅ ospathsplit_aspect

✅ ospathsplit_noaspect

✅ ospathsplitdrive_aspect

✅ ospathsplitdrive_noaspect

✅ ospathsplitext_aspect

✅ ospathsplitext_noaspect

✅ 1-count-metric-1-times

✅ 1-count-metrics-100-times

✅ 1-distribution-metric-1-times

✅ 1-distribution-metrics-100-times

✅ 1-gauge-metric-1-times

✅ 1-gauge-metrics-100-times

✅ 1-rate-metric-1-times

✅ 1-rate-metrics-100-times

✅ 100-count-metrics-100-times

✅ 100-distribution-metrics-100-times

✅ 100-gauge-metrics-100-times

✅ 100-rate-metrics-100-times

✅ flush-1-metric

✅ flush-100-metrics

✅ flush-1000-metrics

✅ large

✅ medium

✅ small

⚠️ context_with_data_listeners

✅ context_with_data_no_listeners

✅ get_item_exists

✅ get_item_missing

✅ set_item

✅ import_many

✅ import_many_cached

✅ import_many_stdlib

⚠️ import_many_stdlib_cached

✅ import_many_unknown

✅ import_many_unknown_cached

✅ import_one

✅ import_one_cache

✅ import_one_stdlib

✅ import_one_stdlib_cache

✅ import_one_unknown

✅ import_one_unknown_cache

✅ appsec

✅ exception-replay-enabled

✅ iast

✅ profiler

✅ resource-renaming

✅ span-code-origin

✅ tracer

✅ tracer-and-profiler

✅ tracer-dont-create-db-spans

✅ tracer-minimal

✅ tracer-native

✅ tracer-no-caches

✅ tracer-no-databases

✅ tracer-no-middleware

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