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fix(profiling): prevent unbounded loop in interpreter iteration #16002

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fix(profiling): prevent unbounded loop in interpreter iteration #16002

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@taegyunkim taegyunkim commented Jan 12, 2026

Description

Since most applications use single Python interpreter, this would rarely happen, but in theory can loop infinitely.

Testing

Risks

Additional Notes

@taegyunkim taegyunkim requested review from a team as code owners January 12, 2026 19:38
@taegyunkim taegyunkim added the Profiling Continous Profling label Jan 12, 2026
@taegyunkim taegyunkim added the AI Generated Largely based on code generated by an AI or LLM. This label is the same across all dd-trace-* repos label Jan 12, 2026
@taegyunkim taegyunkim requested a review from gnufede January 12, 2026 19:38
@taegyunkim taegyunkim marked this pull request as draft January 12, 2026 19:38
@taegyunkim taegyunkim force-pushed the prof-13436-interpreter branch from fc1eed7 to 2c42a0f Compare January 12, 2026 19:50
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Codeowners resolved as

ddtrace/internal/datadog/profiling/stack/echion/echion/interp.h         @DataDog/profiling-python
releasenotes/notes/profiling-interpreter-loop-45f5a6d7bab9bbd6.yaml     @DataDog/apm-python

@taegyunkim taegyunkim force-pushed the prof-13436-interpreter branch 2 times, most recently from 7aadb74 to 1897c70 Compare January 12, 2026 20:01
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Performance SLOs

Comparing candidate prof-13436-interpreter (1897c70) with baseline main (76fae6c)

📈 Performance Regressions (3 suites)
📈 iastaspects - 118/118

✅ add_aspect

Time: ✅ 102.961µs (SLO: <130.000µs 📉 -20.8%) vs baseline: +2.4%

Memory: ✅ 42.566MB (SLO: <43.250MB 🟡 -1.6%) vs baseline: +4.9%

✅ add_inplace_aspect

Time: ✅ 101.462µs (SLO: <130.000µs 📉 -22.0%) vs baseline: +0.1%

Memory: ✅ 42.664MB (SLO: <43.250MB 🟡 -1.4%) vs baseline: +4.8%

✅ add_inplace_noaspect

Time: ✅ 28.008µs (SLO: <40.000µs 📉 -30.0%) vs baseline: -1.0%

Memory: ✅ 42.684MB (SLO: <43.500MB 🟡 -1.9%) vs baseline: +5.1%

✅ add_noaspect

Time: ✅ 48.746µs (SLO: <70.000µs 📉 -30.4%) vs baseline: ~same

Memory: ✅ 42.684MB (SLO: <43.500MB 🟡 -1.9%) vs baseline: +5.0%

✅ bytearray_aspect

Time: ✅ 260.446µs (SLO: <400.000µs 📉 -34.9%) vs baseline: +1.3%

Memory: ✅ 42.625MB (SLO: <43.500MB -2.0%) vs baseline: +4.9%

✅ bytearray_extend_aspect

Time: ✅ 657.149µs (SLO: <800.000µs 📉 -17.9%) vs baseline: +0.3%

Memory: ✅ 42.703MB (SLO: <43.500MB 🟡 -1.8%) vs baseline: +5.0%

✅ bytearray_extend_noaspect

Time: ✅ 267.143µs (SLO: <400.000µs 📉 -33.2%) vs baseline: -0.5%

Memory: ✅ 42.644MB (SLO: <43.500MB 🟡 -2.0%) vs baseline: +4.9%

✅ bytearray_noaspect

Time: ✅ 141.104µs (SLO: <300.000µs 📉 -53.0%) vs baseline: +1.2%

Memory: ✅ 42.625MB (SLO: <43.500MB -2.0%) vs baseline: +4.8%

✅ bytes_aspect

Time: ✅ 223.655µs (SLO: <300.000µs 📉 -25.4%) vs baseline: +0.7%

Memory: ✅ 42.664MB (SLO: <43.500MB 🟡 -1.9%) vs baseline: +5.1%

✅ bytes_noaspect

Time: ✅ 133.872µs (SLO: <200.000µs 📉 -33.1%) vs baseline: +0.5%

Memory: ✅ 42.644MB (SLO: <43.500MB 🟡 -2.0%) vs baseline: +4.9%

✅ bytesio_aspect

Time: ✅ 3.885ms (SLO: <5.000ms 📉 -22.3%) vs baseline: +1.2%

Memory: ✅ 42.605MB (SLO: <43.500MB -2.1%) vs baseline: +4.6%

✅ bytesio_noaspect

Time: ✅ 318.332µs (SLO: <420.000µs 📉 -24.2%) vs baseline: -0.3%

Memory: ✅ 42.605MB (SLO: <43.500MB -2.1%) vs baseline: +4.9%

✅ capitalize_aspect

Time: ✅ 89.952µs (SLO: <300.000µs 📉 -70.0%) vs baseline: -0.5%

Memory: ✅ 42.664MB (SLO: <43.500MB 🟡 -1.9%) vs baseline: +4.8%

✅ capitalize_noaspect

Time: ✅ 251.872µs (SLO: <300.000µs 📉 -16.0%) vs baseline: -0.6%

Memory: ✅ 42.625MB (SLO: <43.500MB -2.0%) vs baseline: +5.0%

✅ casefold_aspect

Time: ✅ 89.767µs (SLO: <500.000µs 📉 -82.0%) vs baseline: -0.2%

Memory: ✅ 42.625MB (SLO: <43.500MB -2.0%) vs baseline: +5.0%

✅ casefold_noaspect

Time: ✅ 308.384µs (SLO: <500.000µs 📉 -38.3%) vs baseline: +0.3%

Memory: ✅ 42.625MB (SLO: <43.500MB -2.0%) vs baseline: +4.8%

✅ decode_aspect

Time: ✅ 87.316µs (SLO: <100.000µs 📉 -12.7%) vs baseline: +0.3%

Memory: ✅ 42.703MB (SLO: <43.500MB 🟡 -1.8%) vs baseline: +5.1%

✅ decode_noaspect

Time: ✅ 152.636µs (SLO: <210.000µs 📉 -27.3%) vs baseline: -0.6%

Memory: ✅ 42.644MB (SLO: <43.500MB 🟡 -2.0%) vs baseline: +4.7%

✅ encode_aspect

Time: ✅ 85.092µs (SLO: <200.000µs 📉 -57.5%) vs baseline: -0.2%

Memory: ✅ 42.684MB (SLO: <43.500MB 🟡 -1.9%) vs baseline: +5.0%

✅ encode_noaspect

Time: ✅ 139.515µs (SLO: <200.000µs 📉 -30.2%) vs baseline: +1.4%

Memory: ✅ 42.605MB (SLO: <43.500MB -2.1%) vs baseline: +5.0%

✅ format_aspect

Time: ✅ 14.668ms (SLO: <19.200ms 📉 -23.6%) vs baseline: -0.4%

Memory: ✅ 42.939MB (SLO: <43.250MB 🟡 -0.7%) vs baseline: +5.1%

✅ format_map_aspect

Time: ✅ 16.489ms (SLO: <21.500ms 📉 -23.3%) vs baseline: ~same

Memory: ✅ 42.841MB (SLO: <43.500MB 🟡 -1.5%) vs baseline: +4.9%

✅ format_map_noaspect

Time: ✅ 367.874µs (SLO: <500.000µs 📉 -26.4%) vs baseline: +0.5%

Memory: ✅ 42.625MB (SLO: <43.250MB 🟡 -1.4%) vs baseline: +4.6%

✅ format_noaspect

Time: ✅ 305.217µs (SLO: <500.000µs 📉 -39.0%) vs baseline: -0.4%

Memory: ✅ 42.625MB (SLO: <43.250MB 🟡 -1.4%) vs baseline: +5.0%

✅ index_aspect

Time: ✅ 132.829µs (SLO: <300.000µs 📉 -55.7%) vs baseline: +7.1%

Memory: ✅ 42.566MB (SLO: <43.250MB 🟡 -1.6%) vs baseline: +4.6%

✅ index_noaspect

Time: ✅ 40.395µs (SLO: <300.000µs 📉 -86.5%) vs baseline: ~same

Memory: ✅ 42.684MB (SLO: <43.500MB 🟡 -1.9%) vs baseline: +5.1%

✅ join_aspect

Time: ✅ 218.665µs (SLO: <300.000µs 📉 -27.1%) vs baseline: ~same

Memory: ✅ 42.644MB (SLO: <43.500MB 🟡 -2.0%) vs baseline: +4.8%

✅ join_noaspect

Time: ✅ 150.669µs (SLO: <300.000µs 📉 -49.8%) vs baseline: +0.7%

Memory: ✅ 42.566MB (SLO: <43.250MB 🟡 -1.6%) vs baseline: +4.8%

✅ ljust_aspect

Time: ✅ 573.309µs (SLO: <700.000µs 📉 -18.1%) vs baseline: 📈 +14.8%

Memory: ✅ 42.802MB (SLO: <43.250MB 🟡 -1.0%) vs baseline: +5.0%

✅ ljust_noaspect

Time: ✅ 255.802µs (SLO: <300.000µs 📉 -14.7%) vs baseline: +0.8%

Memory: ✅ 42.743MB (SLO: <43.250MB 🟡 -1.2%) vs baseline: +5.1%

✅ lower_aspect

Time: ✅ 307.320µs (SLO: <500.000µs 📉 -38.5%) vs baseline: +0.4%

Memory: ✅ 42.605MB (SLO: <43.500MB -2.1%) vs baseline: +4.6%

✅ lower_noaspect

Time: ✅ 235.294µs (SLO: <300.000µs 📉 -21.6%) vs baseline: -0.5%

Memory: ✅ 42.664MB (SLO: <43.250MB 🟡 -1.4%) vs baseline: +4.9%

✅ lstrip_aspect

Time: ✅ 0.273ms (SLO: <3.000ms 📉 -90.9%) vs baseline: +0.4%

Memory: ✅ 42.566MB (SLO: <43.250MB 🟡 -1.6%) vs baseline: +4.6%

✅ lstrip_noaspect

Time: ✅ 0.179ms (SLO: <3.000ms 📉 -94.0%) vs baseline: +0.4%

Memory: ✅ 42.605MB (SLO: <43.500MB -2.1%) vs baseline: +4.8%

✅ modulo_aspect

Time: ✅ 14.319ms (SLO: <18.750ms 📉 -23.6%) vs baseline: -0.2%

Memory: ✅ 42.821MB (SLO: <43.500MB 🟡 -1.6%) vs baseline: +4.6%

✅ modulo_aspect_for_bytearray_bytearray

Time: ✅ 14.881ms (SLO: <19.350ms 📉 -23.1%) vs baseline: ~same

Memory: ✅ 42.802MB (SLO: <43.500MB 🟡 -1.6%) vs baseline: +4.7%

✅ modulo_aspect_for_bytes

Time: ✅ 14.488ms (SLO: <18.900ms 📉 -23.3%) vs baseline: ~same

Memory: ✅ 42.939MB (SLO: <43.500MB 🟡 -1.3%) vs baseline: +5.3%

✅ modulo_aspect_for_bytes_bytearray

Time: ✅ 14.693ms (SLO: <19.150ms 📉 -23.3%) vs baseline: ~same

Memory: ✅ 42.802MB (SLO: <43.500MB 🟡 -1.6%) vs baseline: +5.1%

✅ modulo_noaspect

Time: ✅ 0.360ms (SLO: <3.000ms 📉 -88.0%) vs baseline: +1.1%

Memory: ✅ 42.625MB (SLO: <43.500MB -2.0%) vs baseline: +4.9%

✅ replace_aspect

Time: ✅ 18.555ms (SLO: <24.000ms 📉 -22.7%) vs baseline: +0.1%

Memory: ✅ 42.821MB (SLO: <44.000MB -2.7%) vs baseline: +4.9%

✅ replace_noaspect

Time: ✅ 284.992µs (SLO: <300.000µs -5.0%) vs baseline: ~same

Memory: ✅ 42.625MB (SLO: <43.500MB -2.0%) vs baseline: +4.8%

✅ repr_aspect

Time: ✅ 317.129µs (SLO: <420.000µs 📉 -24.5%) vs baseline: -0.7%

Memory: ✅ 42.664MB (SLO: <43.500MB 🟡 -1.9%) vs baseline: +4.9%

✅ repr_noaspect

Time: ✅ 46.639µs (SLO: <90.000µs 📉 -48.2%) vs baseline: ~same

Memory: ✅ 42.703MB (SLO: <43.500MB 🟡 -1.8%) vs baseline: +5.1%

✅ rstrip_aspect

Time: ✅ 377.032µs (SLO: <500.000µs 📉 -24.6%) vs baseline: -1.5%

Memory: ✅ 42.743MB (SLO: <43.500MB 🟡 -1.7%) vs baseline: +5.2%

✅ rstrip_noaspect

Time: ✅ 181.544µs (SLO: <300.000µs 📉 -39.5%) vs baseline: -1.0%

Memory: ✅ 42.644MB (SLO: <43.500MB 🟡 -2.0%) vs baseline: +5.0%

✅ slice_aspect

Time: ✅ 181.198µs (SLO: <300.000µs 📉 -39.6%) vs baseline: -0.5%

Memory: ✅ 42.664MB (SLO: <43.500MB 🟡 -1.9%) vs baseline: +5.1%

✅ slice_noaspect

Time: ✅ 53.895µs (SLO: <90.000µs 📉 -40.1%) vs baseline: -1.0%

Memory: ✅ 42.566MB (SLO: <43.500MB -2.1%) vs baseline: +4.6%

✅ stringio_aspect

Time: ✅ 4.439ms (SLO: <5.000ms 📉 -11.2%) vs baseline: 📈 +14.5%

Memory: ✅ 42.664MB (SLO: <43.500MB 🟡 -1.9%) vs baseline: +4.9%

✅ stringio_noaspect

Time: ✅ 358.300µs (SLO: <500.000µs 📉 -28.3%) vs baseline: +1.0%

Memory: ✅ 42.605MB (SLO: <43.500MB -2.1%) vs baseline: +4.8%

✅ strip_aspect

Time: ✅ 268.322µs (SLO: <350.000µs 📉 -23.3%) vs baseline: +0.2%

Memory: ✅ 42.546MB (SLO: <43.500MB -2.2%) vs baseline: +4.6%

✅ strip_noaspect

Time: ✅ 176.668µs (SLO: <240.000µs 📉 -26.4%) vs baseline: -0.1%

Memory: ✅ 42.644MB (SLO: <43.500MB 🟡 -2.0%) vs baseline: +4.6%

✅ swapcase_aspect

Time: ✅ 343.385µs (SLO: <500.000µs 📉 -31.3%) vs baseline: ~same

Memory: ✅ 42.684MB (SLO: <43.500MB 🟡 -1.9%) vs baseline: +4.9%

✅ swapcase_noaspect

Time: ✅ 272.501µs (SLO: <400.000µs 📉 -31.9%) vs baseline: +0.4%

Memory: ✅ 42.625MB (SLO: <43.500MB -2.0%) vs baseline: +4.8%

✅ title_aspect

Time: ✅ 331.481µs (SLO: <500.000µs 📉 -33.7%) vs baseline: -0.4%

Memory: ✅ 42.684MB (SLO: <43.000MB 🟡 -0.7%) vs baseline: +4.9%

✅ title_noaspect

Time: ✅ 258.954µs (SLO: <400.000µs 📉 -35.3%) vs baseline: +0.5%

Memory: ✅ 42.605MB (SLO: <43.500MB -2.1%) vs baseline: +4.6%

✅ translate_aspect

Time: ✅ 497.108µs (SLO: <700.000µs 📉 -29.0%) vs baseline: +0.2%

Memory: ✅ 42.664MB (SLO: <43.500MB 🟡 -1.9%) vs baseline: +5.0%

✅ translate_noaspect

Time: ✅ 423.706µs (SLO: <500.000µs 📉 -15.3%) vs baseline: -2.0%

Memory: ✅ 42.664MB (SLO: <43.500MB 🟡 -1.9%) vs baseline: +4.9%

✅ upper_aspect

Time: ✅ 307.625µs (SLO: <500.000µs 📉 -38.5%) vs baseline: -0.1%

Memory: ✅ 42.703MB (SLO: <43.500MB 🟡 -1.8%) vs baseline: +4.9%

✅ upper_noaspect

Time: ✅ 236.311µs (SLO: <400.000µs 📉 -40.9%) vs baseline: +0.4%

Memory: ✅ 42.625MB (SLO: <43.500MB -2.0%) vs baseline: +5.0%

📈 iastaspectsospath - 24/24

✅ ospathbasename_aspect

Time: ✅ 503.017µs (SLO: <700.000µs 📉 -28.1%) vs baseline: 📈 +19.3%

Memory: ✅ 42.271MB (SLO: <43.500MB -2.8%) vs baseline: +4.4%

✅ ospathbasename_noaspect

Time: ✅ 424.545µs (SLO: <700.000µs 📉 -39.4%) vs baseline: -0.2%

Memory: ✅ 42.369MB (SLO: <43.500MB -2.6%) vs baseline: +5.0%

✅ ospathjoin_aspect

Time: ✅ 623.323µs (SLO: <700.000µs 📉 -11.0%) vs baseline: +0.4%

Memory: ✅ 42.389MB (SLO: <43.500MB -2.6%) vs baseline: +4.7%

✅ ospathjoin_noaspect

Time: ✅ 628.704µs (SLO: <700.000µs 📉 -10.2%) vs baseline: +0.3%

Memory: ✅ 42.546MB (SLO: <43.500MB -2.2%) vs baseline: +5.1%

✅ ospathnormcase_aspect

Time: ✅ 348.592µs (SLO: <700.000µs 📉 -50.2%) vs baseline: ~same

Memory: ✅ 42.369MB (SLO: <43.500MB -2.6%) vs baseline: +5.0%

✅ ospathnormcase_noaspect

Time: ✅ 355.320µs (SLO: <700.000µs 📉 -49.2%) vs baseline: +0.3%

Memory: ✅ 42.290MB (SLO: <43.500MB -2.8%) vs baseline: +4.6%

✅ ospathsplit_aspect

Time: ✅ 488.233µs (SLO: <700.000µs 📉 -30.3%) vs baseline: -0.4%

Memory: ✅ 42.290MB (SLO: <43.500MB -2.8%) vs baseline: +4.7%

✅ ospathsplit_noaspect

Time: ✅ 492.622µs (SLO: <700.000µs 📉 -29.6%) vs baseline: -0.9%

Memory: ✅ 42.389MB (SLO: <43.500MB -2.6%) vs baseline: +5.0%

✅ ospathsplitdrive_aspect

Time: ✅ 372.383µs (SLO: <700.000µs 📉 -46.8%) vs baseline: +0.4%

Memory: ✅ 42.428MB (SLO: <43.500MB -2.5%) vs baseline: +5.1%

✅ ospathsplitdrive_noaspect

Time: ✅ 73.009µs (SLO: <700.000µs 📉 -89.6%) vs baseline: +0.7%

Memory: ✅ 42.369MB (SLO: <43.500MB -2.6%) vs baseline: +4.6%

✅ ospathsplitext_aspect

Time: ✅ 455.824µs (SLO: <700.000µs 📉 -34.9%) vs baseline: -0.6%

Memory: ✅ 42.507MB (SLO: <43.500MB -2.3%) vs baseline: +4.8%

✅ ospathsplitext_noaspect

Time: ✅ 462.744µs (SLO: <700.000µs 📉 -33.9%) vs baseline: -0.9%

Memory: ✅ 42.389MB (SLO: <43.500MB -2.6%) vs baseline: +4.8%

📈 telemetryaddmetric - 30/30

✅ 1-count-metric-1-times

Time: ✅ 3.388µs (SLO: <20.000µs 📉 -83.1%) vs baseline: 📈 +13.2%

Memory: ✅ 34.918MB (SLO: <35.500MB 🟡 -1.6%) vs baseline: +4.8%

✅ 1-count-metrics-100-times

Time: ✅ 200.816µs (SLO: <220.000µs -8.7%) vs baseline: -0.3%

Memory: ✅ 34.859MB (SLO: <35.500MB 🟡 -1.8%) vs baseline: +4.6%

✅ 1-distribution-metric-1-times

Time: ✅ 3.360µs (SLO: <20.000µs 📉 -83.2%) vs baseline: +0.1%

Memory: ✅ 34.957MB (SLO: <35.500MB 🟡 -1.5%) vs baseline: +4.9%

✅ 1-distribution-metrics-100-times

Time: ✅ 214.483µs (SLO: <230.000µs -6.7%) vs baseline: -0.2%

Memory: ✅ 34.918MB (SLO: <35.500MB 🟡 -1.6%) vs baseline: +4.9%

✅ 1-gauge-metric-1-times

Time: ✅ 2.177µs (SLO: <20.000µs 📉 -89.1%) vs baseline: -0.5%

Memory: ✅ 34.918MB (SLO: <35.500MB 🟡 -1.6%) vs baseline: +4.9%

✅ 1-gauge-metrics-100-times

Time: ✅ 137.062µs (SLO: <150.000µs -8.6%) vs baseline: ~same

Memory: ✅ 34.918MB (SLO: <35.500MB 🟡 -1.6%) vs baseline: +4.9%

✅ 1-rate-metric-1-times

Time: ✅ 3.157µs (SLO: <20.000µs 📉 -84.2%) vs baseline: ~same

Memory: ✅ 34.937MB (SLO: <35.500MB 🟡 -1.6%) vs baseline: +5.4%

✅ 1-rate-metrics-100-times

Time: ✅ 216.008µs (SLO: <250.000µs 📉 -13.6%) vs baseline: +0.9%

Memory: ✅ 34.918MB (SLO: <35.500MB 🟡 -1.6%) vs baseline: +4.7%

✅ 100-count-metrics-100-times

Time: ✅ 20.037ms (SLO: <22.000ms -8.9%) vs baseline: ~same

Memory: ✅ 34.859MB (SLO: <35.500MB 🟡 -1.8%) vs baseline: +4.8%

✅ 100-distribution-metrics-100-times

Time: ✅ 2.246ms (SLO: <2.550ms 📉 -11.9%) vs baseline: +0.3%

Memory: ✅ 34.898MB (SLO: <35.500MB 🟡 -1.7%) vs baseline: +4.7%

✅ 100-gauge-metrics-100-times

Time: ✅ 1.417ms (SLO: <1.550ms -8.6%) vs baseline: +0.3%

Memory: ✅ 35.036MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +5.4%

✅ 100-rate-metrics-100-times

Time: ✅ 2.200ms (SLO: <2.550ms 📉 -13.7%) vs baseline: +1.3%

Memory: ✅ 34.878MB (SLO: <35.500MB 🟡 -1.8%) vs baseline: +4.7%

✅ flush-1-metric

Time: ✅ 4.559µs (SLO: <20.000µs 📉 -77.2%) vs baseline: -0.4%

Memory: ✅ 35.232MB (SLO: <35.500MB 🟡 -0.8%) vs baseline: +4.6%

✅ flush-100-metrics

Time: ✅ 174.776µs (SLO: <250.000µs 📉 -30.1%) vs baseline: -0.7%

Memory: ✅ 35.311MB (SLO: <35.500MB 🟡 -0.5%) vs baseline: +5.0%

✅ flush-1000-metrics

Time: ✅ 2.184ms (SLO: <2.500ms 📉 -12.6%) vs baseline: -0.4%

Memory: ✅ 36.038MB (SLO: <36.500MB 🟡 -1.3%) vs baseline: +4.5%

🟡 Near SLO Breach (15 suites)
🟡 coreapiscenario - 10/10 (1 unstable)

⚠️ context_with_data_listeners

Time: ⚠️ 13.285µs (SLO: <20.000µs 📉 -33.6%) vs baseline: -0.3%

Memory: ✅ 34.819MB (SLO: <35.500MB 🟡 -1.9%) vs baseline: +4.7%

✅ context_with_data_no_listeners

Time: ✅ 3.289µs (SLO: <10.000µs 📉 -67.1%) vs baseline: -0.2%

Memory: ✅ 35.036MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +5.1%

✅ get_item_exists

Time: ✅ 0.584µs (SLO: <10.000µs 📉 -94.2%) vs baseline: ~same

Memory: ✅ 34.957MB (SLO: <35.500MB 🟡 -1.5%) vs baseline: +5.0%

✅ get_item_missing

Time: ✅ 0.636µs (SLO: <10.000µs 📉 -93.6%) vs baseline: +0.7%

Memory: ✅ 34.918MB (SLO: <35.500MB 🟡 -1.6%) vs baseline: +4.9%

✅ set_item

Time: ✅ 24.194µs (SLO: <30.000µs 📉 -19.4%) vs baseline: +0.7%

Memory: ✅ 34.918MB (SLO: <35.500MB 🟡 -1.6%) vs baseline: +4.7%

🟡 djangosimple - 30/30

✅ appsec

Time: ✅ 19.575ms (SLO: <22.300ms 📉 -12.2%) vs baseline: ~same

Memory: ✅ 68.184MB (SLO: <70.500MB -3.3%) vs baseline: +4.9%

✅ exception-replay-enabled

Time: ✅ 1.378ms (SLO: <1.450ms -5.0%) vs baseline: +0.4%

Memory: ✅ 66.338MB (SLO: <67.500MB 🟡 -1.7%) vs baseline: +4.8%

✅ iast

Time: ✅ 19.528ms (SLO: <22.250ms 📉 -12.2%) vs baseline: -0.2%

Memory: ✅ 68.262MB (SLO: <70.000MB -2.5%) vs baseline: +5.0%

✅ profiler

Time: ✅ 15.289ms (SLO: <16.550ms -7.6%) vs baseline: ~same

Memory: ✅ 56.433MB (SLO: <57.500MB 🟡 -1.9%) vs baseline: +4.8%

✅ resource-renaming

Time: ✅ 19.495ms (SLO: <21.750ms 📉 -10.4%) vs baseline: -0.2%

Memory: ✅ 68.184MB (SLO: <70.500MB -3.3%) vs baseline: +4.9%

✅ span-code-origin

Time: ✅ 20.065ms (SLO: <28.200ms 📉 -28.8%) vs baseline: +1.8%

Memory: ✅ 68.128MB (SLO: <71.000MB -4.0%) vs baseline: +4.8%

✅ tracer

Time: ✅ 19.590ms (SLO: <21.750ms -9.9%) vs baseline: +0.1%

Memory: ✅ 68.203MB (SLO: <70.000MB -2.6%) vs baseline: +4.8%

✅ tracer-and-profiler

Time: ✅ 21.610ms (SLO: <23.500ms -8.0%) vs baseline: ~same

Memory: ✅ 69.914MB (SLO: <71.000MB 🟡 -1.5%) vs baseline: +5.1%

✅ tracer-dont-create-db-spans

Time: ✅ 19.594ms (SLO: <21.500ms -8.9%) vs baseline: -0.2%

Memory: ✅ 68.203MB (SLO: <70.000MB -2.6%) vs baseline: +4.9%

✅ tracer-minimal

Time: ✅ 16.745ms (SLO: <17.500ms -4.3%) vs baseline: ~same

Memory: ✅ 68.321MB (SLO: <70.000MB -2.4%) vs baseline: +5.0%

✅ tracer-native

Time: ✅ 19.546ms (SLO: <21.750ms 📉 -10.1%) vs baseline: +0.4%

Memory: ✅ 68.223MB (SLO: <72.500MB -5.9%) vs baseline: +4.8%

✅ tracer-no-caches

Time: ✅ 17.905ms (SLO: <19.650ms -8.9%) vs baseline: +0.2%

Memory: ✅ 68.184MB (SLO: <70.000MB -2.6%) vs baseline: +4.7%

✅ tracer-no-databases

Time: ✅ 19.472ms (SLO: <20.100ms -3.1%) vs baseline: +0.1%

Memory: ✅ 67.948MB (SLO: <70.000MB -2.9%) vs baseline: +5.1%

✅ tracer-no-middleware

Time: ✅ 19.372ms (SLO: <21.500ms -9.9%) vs baseline: +0.6%

Memory: ✅ 68.164MB (SLO: <70.000MB -2.6%) vs baseline: +4.8%

✅ tracer-no-templates

Time: ✅ 19.564ms (SLO: <22.000ms 📉 -11.1%) vs baseline: +0.9%

Memory: ✅ 68.223MB (SLO: <70.500MB -3.2%) vs baseline: +4.9%

🟡 errortrackingdjangosimple - 6/6

✅ errortracking-enabled-all

Time: ✅ 16.359ms (SLO: <19.850ms 📉 -17.6%) vs baseline: -0.1%

Memory: ✅ 69.871MB (SLO: <70.000MB 🟡 -0.2%) vs baseline: +4.9%

✅ errortracking-enabled-user

Time: ✅ 16.330ms (SLO: <19.400ms 📉 -15.8%) vs baseline: ~same

Memory: ✅ 69.817MB (SLO: <70.000MB 🟡 -0.3%) vs baseline: +4.9%

✅ tracer-enabled

Time: ✅ 16.277ms (SLO: <19.450ms 📉 -16.3%) vs baseline: ~same

Memory: ✅ 69.734MB (SLO: <70.000MB 🟡 -0.4%) vs baseline: +4.7%

🟡 errortrackingflasksqli - 6/6

✅ errortracking-enabled-all

Time: ✅ 2.068ms (SLO: <2.300ms 📉 -10.1%) vs baseline: -0.2%

Memory: ✅ 55.776MB (SLO: <56.500MB 🟡 -1.3%) vs baseline: +4.9%

✅ errortracking-enabled-user

Time: ✅ 2.075ms (SLO: <2.250ms -7.8%) vs baseline: ~same

Memory: ✅ 55.758MB (SLO: <56.500MB 🟡 -1.3%) vs baseline: +4.9%

✅ tracer-enabled

Time: ✅ 2.067ms (SLO: <2.300ms 📉 -10.1%) vs baseline: ~same

Memory: ✅ 55.719MB (SLO: <56.500MB 🟡 -1.4%) vs baseline: +4.9%

🟡 flasksimple - 18/18

✅ appsec-get

Time: ✅ 3.392ms (SLO: <4.750ms 📉 -28.6%) vs baseline: +0.4%

Memory: ✅ 55.724MB (SLO: <66.500MB 📉 -16.2%) vs baseline: +4.8%

✅ appsec-post

Time: ✅ 2.853ms (SLO: <6.750ms 📉 -57.7%) vs baseline: +0.2%

Memory: ✅ 55.765MB (SLO: <66.500MB 📉 -16.1%) vs baseline: +4.9%

✅ appsec-telemetry

Time: ✅ 3.392ms (SLO: <4.750ms 📉 -28.6%) vs baseline: +0.6%

Memory: ✅ 55.743MB (SLO: <66.500MB 📉 -16.2%) vs baseline: +4.9%

✅ debugger

Time: ✅ 1.867ms (SLO: <2.000ms -6.7%) vs baseline: ~same

Memory: ✅ 47.830MB (SLO: <49.500MB -3.4%) vs baseline: +4.9%

✅ iast-get

Time: ✅ 1.861ms (SLO: <2.000ms -6.9%) vs baseline: +0.2%

Memory: ✅ 44.743MB (SLO: <49.000MB -8.7%) vs baseline: +4.9%

✅ profiler

Time: ✅ 1.901ms (SLO: <2.100ms -9.5%) vs baseline: -0.2%

Memory: ✅ 48.696MB (SLO: <50.000MB -2.6%) vs baseline: +4.8%

✅ resource-renaming

Time: ✅ 3.356ms (SLO: <3.650ms -8.1%) vs baseline: +0.4%

Memory: ✅ 55.707MB (SLO: <56.000MB 🟡 -0.5%) vs baseline: +4.9%

✅ tracer

Time: ✅ 3.369ms (SLO: <3.650ms -7.7%) vs baseline: ~same

Memory: ✅ 55.767MB (SLO: <56.500MB 🟡 -1.3%) vs baseline: +4.9%

✅ tracer-native

Time: ✅ 3.364ms (SLO: <3.650ms -7.8%) vs baseline: ~same

Memory: ✅ 55.743MB (SLO: <60.000MB -7.1%) vs baseline: +4.9%

🟡 flasksqli - 6/6

✅ appsec-enabled

Time: ✅ 2.054ms (SLO: <4.200ms 📉 -51.1%) vs baseline: -0.5%

Memory: ✅ 55.797MB (SLO: <66.000MB 📉 -15.5%) vs baseline: +4.8%

✅ iast-enabled

Time: ✅ 2.063ms (SLO: <2.800ms 📉 -26.3%) vs baseline: -0.3%

Memory: ✅ 55.778MB (SLO: <62.500MB 📉 -10.8%) vs baseline: +4.8%

✅ tracer-enabled

Time: ✅ 2.058ms (SLO: <2.250ms -8.5%) vs baseline: +0.1%

Memory: ✅ 55.778MB (SLO: <56.500MB 🟡 -1.3%) vs baseline: +4.8%

🟡 httppropagationextract - 60/60

✅ all_styles_all_headers

Time: ✅ 81.527µs (SLO: <100.000µs 📉 -18.5%) vs baseline: -0.2%

Memory: ✅ 34.996MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +4.9%

✅ b3_headers

Time: ✅ 14.430µs (SLO: <20.000µs 📉 -27.9%) vs baseline: +0.3%

Memory: ✅ 35.036MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +4.7%

✅ b3_single_headers

Time: ✅ 13.472µs (SLO: <20.000µs 📉 -32.6%) vs baseline: -0.1%

Memory: ✅ 35.055MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +4.9%

✅ datadog_tracecontext_tracestate_not_propagated_on_trace_id_no_match

Time: ✅ 64.008µs (SLO: <80.000µs 📉 -20.0%) vs baseline: +0.1%

Memory: ✅ 34.957MB (SLO: <35.500MB 🟡 -1.5%) vs baseline: +4.8%

✅ datadog_tracecontext_tracestate_propagated_on_trace_id_match

Time: ✅ 66.206µs (SLO: <80.000µs 📉 -17.2%) vs baseline: ~same

Memory: ✅ 34.977MB (SLO: <35.500MB 🟡 -1.5%) vs baseline: +4.9%

✅ empty_headers

Time: ✅ 1.633µs (SLO: <10.000µs 📉 -83.7%) vs baseline: +2.5%

Memory: ✅ 35.055MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +5.0%

✅ full_t_id_datadog_headers

Time: ✅ 22.806µs (SLO: <30.000µs 📉 -24.0%) vs baseline: ~same

Memory: ✅ 35.016MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +4.7%

✅ invalid_priority_header

Time: ✅ 6.495µs (SLO: <10.000µs 📉 -35.1%) vs baseline: -0.2%

Memory: ✅ 34.977MB (SLO: <35.500MB 🟡 -1.5%) vs baseline: +4.8%

✅ invalid_span_id_header

Time: ✅ 6.482µs (SLO: <10.000µs 📉 -35.2%) vs baseline: -0.2%

Memory: ✅ 35.016MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +5.2%

✅ invalid_tags_header

Time: ✅ 6.518µs (SLO: <10.000µs 📉 -34.8%) vs baseline: ~same

Memory: ✅ 34.918MB (SLO: <35.500MB 🟡 -1.6%) vs baseline: +4.6%

✅ invalid_trace_id_header

Time: ✅ 6.547µs (SLO: <10.000µs 📉 -34.5%) vs baseline: -0.3%

Memory: ✅ 35.055MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +4.9%

✅ large_header_no_matches

Time: ✅ 27.627µs (SLO: <30.000µs -7.9%) vs baseline: -0.2%

Memory: ✅ 35.016MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +4.7%

✅ large_valid_headers_all

Time: ✅ 28.771µs (SLO: <40.000µs 📉 -28.1%) vs baseline: +0.1%

Memory: ✅ 34.898MB (SLO: <35.500MB 🟡 -1.7%) vs baseline: +4.4%

✅ medium_header_no_matches

Time: ✅ 9.817µs (SLO: <20.000µs 📉 -50.9%) vs baseline: -0.6%

Memory: ✅ 35.036MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +4.7%

✅ medium_valid_headers_all

Time: ✅ 11.279µs (SLO: <20.000µs 📉 -43.6%) vs baseline: +0.3%

Memory: ✅ 34.977MB (SLO: <35.500MB 🟡 -1.5%) vs baseline: +4.7%

✅ none_propagation_style

Time: ✅ 1.725µs (SLO: <10.000µs 📉 -82.7%) vs baseline: +1.5%

Memory: ✅ 34.957MB (SLO: <35.500MB 🟡 -1.5%) vs baseline: +4.7%

✅ tracecontext_headers

Time: ✅ 34.885µs (SLO: <40.000µs 📉 -12.8%) vs baseline: ~same

Memory: ✅ 35.036MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +5.0%

✅ valid_headers_all

Time: ✅ 6.481µs (SLO: <10.000µs 📉 -35.2%) vs baseline: +0.1%

Memory: ✅ 35.055MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +5.0%

✅ valid_headers_basic

Time: ✅ 6.059µs (SLO: <10.000µs 📉 -39.4%) vs baseline: -0.3%

Memory: ✅ 35.016MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +4.9%

✅ wsgi_empty_headers

Time: ✅ 1.590µs (SLO: <10.000µs 📉 -84.1%) vs baseline: -0.7%

Memory: ✅ 35.055MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +5.0%

✅ wsgi_invalid_priority_header

Time: ✅ 6.565µs (SLO: <10.000µs 📉 -34.3%) vs baseline: +0.5%

Memory: ✅ 34.996MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +4.9%

✅ wsgi_invalid_span_id_header

Time: ✅ 1.600µs (SLO: <10.000µs 📉 -84.0%) vs baseline: -0.3%

Memory: ✅ 35.036MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +4.9%

✅ wsgi_invalid_tags_header

Time: ✅ 6.514µs (SLO: <10.000µs 📉 -34.9%) vs baseline: -0.4%

Memory: ✅ 34.977MB (SLO: <35.500MB 🟡 -1.5%) vs baseline: +4.9%

✅ wsgi_invalid_trace_id_header

Time: ✅ 6.723µs (SLO: <10.000µs 📉 -32.8%) vs baseline: +2.3%

Memory: ✅ 35.016MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +5.0%

✅ wsgi_large_header_no_matches

Time: ✅ 28.773µs (SLO: <40.000µs 📉 -28.1%) vs baseline: +0.3%

Memory: ✅ 35.036MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +4.9%

✅ wsgi_large_valid_headers_all

Time: ✅ 29.873µs (SLO: <40.000µs 📉 -25.3%) vs baseline: ~same

Memory: ✅ 35.095MB (SLO: <35.500MB 🟡 -1.1%) vs baseline: +5.0%

✅ wsgi_medium_header_no_matches

Time: ✅ 10.218µs (SLO: <20.000µs 📉 -48.9%) vs baseline: +0.1%

Memory: ✅ 35.036MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +4.9%

✅ wsgi_medium_valid_headers_all

Time: ✅ 11.688µs (SLO: <20.000µs 📉 -41.6%) vs baseline: ~same

Memory: ✅ 35.016MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +4.7%

✅ wsgi_valid_headers_all

Time: ✅ 6.521µs (SLO: <10.000µs 📉 -34.8%) vs baseline: ~same

Memory: ✅ 35.075MB (SLO: <35.500MB 🟡 -1.2%) vs baseline: +4.9%

✅ wsgi_valid_headers_basic

Time: ✅ 6.113µs (SLO: <10.000µs 📉 -38.9%) vs baseline: ~same

Memory: ✅ 35.016MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +4.8%

🟡 httppropagationinject - 16/16

✅ ids_only

Time: ✅ 21.836µs (SLO: <30.000µs 📉 -27.2%) vs baseline: +4.3%

Memory: ✅ 35.036MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +4.9%

✅ with_all

Time: ✅ 27.702µs (SLO: <40.000µs 📉 -30.7%) vs baseline: ~same

Memory: ✅ 35.016MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +4.9%

✅ with_dd_origin

Time: ✅ 24.488µs (SLO: <30.000µs 📉 -18.4%) vs baseline: -0.7%

Memory: ✅ 35.055MB (SLO: <35.500MB 🟡 -1.3%) vs baseline: +4.6%

✅ with_priority_and_origin

Time: ✅ 23.984µs (SLO: <40.000µs 📉 -40.0%) vs baseline: +0.6%

Memory: ✅ 35.114MB (SLO: <35.500MB 🟡 -1.1%) vs baseline: +5.0%

✅ with_sampling_priority

Time: ✅ 20.911µs (SLO: <30.000µs 📉 -30.3%) vs baseline: ~same

Memory: ✅ 35.075MB (SLO: <35.500MB 🟡 -1.2%) vs baseline: +4.9%

✅ with_tags

Time: ✅ 25.825µs (SLO: <40.000µs 📉 -35.4%) vs baseline: -0.2%

Memory: ✅ 35.016MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +4.7%

✅ with_tags_invalid

Time: ✅ 27.407µs (SLO: <40.000µs 📉 -31.5%) vs baseline: +0.4%

Memory: ✅ 35.016MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +4.9%

✅ with_tags_max_size

Time: ✅ 26.287µs (SLO: <40.000µs 📉 -34.3%) vs baseline: -0.6%

Memory: ✅ 35.016MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +4.7%

🟡 otelspan - 22/22

✅ add-event

Time: ✅ 40.327ms (SLO: <47.150ms 📉 -14.5%) vs baseline: +0.2%

Memory: ✅ 39.594MB (SLO: <47.000MB 📉 -15.8%) vs baseline: +4.8%

✅ add-metrics

Time: ✅ 257.787ms (SLO: <344.800ms 📉 -25.2%) vs baseline: -0.4%

Memory: ✅ 43.735MB (SLO: <47.500MB -7.9%) vs baseline: +4.5%

✅ add-tags

Time: ✅ 315.840ms (SLO: <321.000ms 🟡 -1.6%) vs baseline: ~same

Memory: ✅ 43.942MB (SLO: <47.500MB -7.5%) vs baseline: +5.1%

✅ get-context

Time: ✅ 80.775ms (SLO: <92.350ms 📉 -12.5%) vs baseline: +0.6%

Memory: ✅ 39.951MB (SLO: <46.500MB 📉 -14.1%) vs baseline: +5.0%

✅ is-recording

Time: ✅ 37.830ms (SLO: <44.500ms 📉 -15.0%) vs baseline: -0.5%

Memory: ✅ 39.755MB (SLO: <47.500MB 📉 -16.3%) vs baseline: +5.0%

✅ record-exception

Time: ✅ 58.865ms (SLO: <67.650ms 📉 -13.0%) vs baseline: -0.1%

Memory: ✅ 40.144MB (SLO: <47.000MB 📉 -14.6%) vs baseline: +5.0%

✅ set-status

Time: ✅ 44.321ms (SLO: <50.400ms 📉 -12.1%) vs baseline: ~same

Memory: ✅ 39.559MB (SLO: <47.000MB 📉 -15.8%) vs baseline: +4.9%

✅ start

Time: ✅ 38.501ms (SLO: <43.450ms 📉 -11.4%) vs baseline: +4.1%

Memory: ✅ 39.600MB (SLO: <47.000MB 📉 -15.7%) vs baseline: +4.7%

✅ start-finish

Time: ✅ 82.800ms (SLO: <88.000ms -5.9%) vs baseline: ~same

Memory: ✅ 37.473MB (SLO: <46.500MB 📉 -19.4%) vs baseline: +5.2%

✅ start-finish-telemetry

Time: ✅ 84.821ms (SLO: <89.000ms -4.7%) vs baseline: +0.6%

Memory: ✅ 37.316MB (SLO: <46.500MB 📉 -19.8%) vs baseline: +4.5%

✅ update-name

Time: ✅ 38.703ms (SLO: <45.150ms 📉 -14.3%) vs baseline: ~same

Memory: ✅ 39.686MB (SLO: <47.000MB 📉 -15.6%) vs baseline: +4.6%

🟡 ratelimiter - 12/12

✅ defaults

Time: ✅ 2.342µs (SLO: <10.000µs 📉 -76.6%) vs baseline: -0.4%

Memory: ✅ 35.311MB (SLO: <35.500MB 🟡 -0.5%) vs baseline: +5.1%

✅ high_rate_limit

Time: ✅ 2.392µs (SLO: <10.000µs 📉 -76.1%) vs baseline: +0.1%

Memory: ✅ 35.330MB (SLO: <35.500MB 🟡 -0.5%) vs baseline: +5.1%

✅ long_window

Time: ✅ 2.374µs (SLO: <10.000µs 📉 -76.3%) vs baseline: +1.4%

Memory: ✅ 35.271MB (SLO: <35.500MB 🟡 -0.6%) vs baseline: +4.9%

✅ low_rate_limit

Time: ✅ 2.354µs (SLO: <10.000µs 📉 -76.5%) vs baseline: +0.2%

Memory: ✅ 35.193MB (SLO: <35.500MB 🟡 -0.9%) vs baseline: +4.6%

✅ no_rate_limit

Time: ✅ 0.827µs (SLO: <10.000µs 📉 -91.7%) vs baseline: +0.8%

Memory: ✅ 35.291MB (SLO: <35.500MB 🟡 -0.6%) vs baseline: +5.0%

✅ short_window

Time: ✅ 2.477µs (SLO: <10.000µs 📉 -75.2%) vs baseline: -0.5%

Memory: ✅ 35.193MB (SLO: <35.500MB 🟡 -0.9%) vs baseline: +4.6%

🟡 recursivecomputation - 8/8

✅ deep

Time: ✅ 309.072ms (SLO: <320.950ms -3.7%) vs baseline: -0.1%

Memory: ✅ 36.058MB (SLO: <36.500MB 🟡 -1.2%) vs baseline: +5.1%

✅ deep-profiled

Time: ✅ 325.702ms (SLO: <359.150ms -9.3%) vs baseline: -0.5%

Memory: ✅ 39.951MB (SLO: <40.500MB 🟡 -1.4%) vs baseline: +4.9%

✅ medium

Time: ✅ 6.996ms (SLO: <7.400ms -5.5%) vs baseline: ~same

Memory: ✅ 34.859MB (SLO: <35.500MB 🟡 -1.8%) vs baseline: +4.7%

✅ shallow

Time: ✅ 0.948ms (SLO: <1.050ms -9.7%) vs baseline: +0.9%

Memory: ✅ 35.016MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +5.1%

🟡 samplingrules - 8/8

✅ average_match

Time: ✅ 136.681µs (SLO: <290.000µs 📉 -52.9%) vs baseline: -0.6%

Memory: ✅ 34.996MB (SLO: <35.500MB 🟡 -1.4%) vs baseline: +5.3%

✅ high_match

Time: ✅ 172.639µs (SLO: <480.000µs 📉 -64.0%) vs baseline: -0.5%

Memory: ✅ 34.878MB (SLO: <35.500MB 🟡 -1.8%) vs baseline: +4.8%

✅ low_match

Time: ✅ 98.513µs (SLO: <120.000µs 📉 -17.9%) vs baseline: -0.9%

Memory: ✅ 603.768MB (SLO: <700.000MB 📉 -13.7%) vs baseline: +4.9%

✅ very_low_match

Time: ✅ 2.658ms (SLO: <8.500ms 📉 -68.7%) vs baseline: -0.2%

Memory: ✅ 71.091MB (SLO: <75.000MB -5.2%) vs baseline: +4.7%

🟡 sethttpmeta - 32/32

✅ all-disabled

Time: ✅ 10.536µs (SLO: <20.000µs 📉 -47.3%) vs baseline: +0.6%

Memory: ✅ 35.881MB (SLO: <36.000MB 🟡 -0.3%) vs baseline: +5.1%

✅ all-enabled

Time: ✅ 41.037µs (SLO: <50.000µs 📉 -17.9%) vs baseline: +3.0%

Memory: ✅ 35.842MB (SLO: <36.000MB 🟡 -0.4%) vs baseline: +4.9%

✅ collectipvariant_exists

Time: ✅ 40.949µs (SLO: <50.000µs 📉 -18.1%) vs baseline: +0.6%

Memory: ✅ 35.861MB (SLO: <36.000MB 🟡 -0.4%) vs baseline: +5.1%

✅ no-collectipvariant

Time: ✅ 40.015µs (SLO: <50.000µs 📉 -20.0%) vs baseline: +0.6%

Memory: ✅ 35.881MB (SLO: <36.000MB 🟡 -0.3%) vs baseline: +5.0%

✅ no-useragentvariant

Time: ✅ 38.699µs (SLO: <50.000µs 📉 -22.6%) vs baseline: -0.1%

Memory: ✅ 35.822MB (SLO: <36.000MB 🟡 -0.5%) vs baseline: +4.8%

✅ obfuscation-no-query

Time: ✅ 40.542µs (SLO: <50.000µs 📉 -18.9%) vs baseline: +0.3%

Memory: ✅ 35.822MB (SLO: <36.000MB 🟡 -0.5%) vs baseline: +5.0%

✅ obfuscation-regular-case-explicit-query

Time: ✅ 75.673µs (SLO: <90.000µs 📉 -15.9%) vs baseline: ~same

Memory: ✅ 35.861MB (SLO: <36.500MB 🟡 -1.7%) vs baseline: +5.3%

✅ obfuscation-regular-case-implicit-query

Time: ✅ 76.174µs (SLO: <90.000µs 📉 -15.4%) vs baseline: ~same

Memory: ✅ 35.783MB (SLO: <36.500MB 🟡 -2.0%) vs baseline: +4.7%

✅ obfuscation-send-querystring-disabled

Time: ✅ 154.227µs (SLO: <170.000µs -9.3%) vs baseline: ~same

Memory: ✅ 35.743MB (SLO: <36.500MB -2.1%) vs baseline: +4.7%

✅ obfuscation-worst-case-explicit-query

Time: ✅ 148.808µs (SLO: <160.000µs -7.0%) vs baseline: ~same

Memory: ✅ 35.822MB (SLO: <36.500MB 🟡 -1.9%) vs baseline: +4.9%

✅ obfuscation-worst-case-implicit-query

Time: ✅ 154.921µs (SLO: <170.000µs -8.9%) vs baseline: +0.2%

Memory: ✅ 35.763MB (SLO: <36.500MB -2.0%) vs baseline: +4.5%

✅ useragentvariant_exists_1

Time: ✅ 39.444µs (SLO: <50.000µs 📉 -21.1%) vs baseline: +0.2%

Memory: ✅ 35.724MB (SLO: <36.000MB 🟡 -0.8%) vs baseline: +4.6%

✅ useragentvariant_exists_2

Time: ✅ 40.675µs (SLO: <50.000µs 📉 -18.7%) vs baseline: ~same

Memory: ✅ 35.822MB (SLO: <36.000MB 🟡 -0.5%) vs baseline: +4.8%

✅ useragentvariant_exists_3

Time: ✅ 40.087µs (SLO: <50.000µs 📉 -19.8%) vs baseline: +0.7%

Memory: ✅ 35.802MB (SLO: <36.000MB 🟡 -0.5%) vs baseline: +4.8%

✅ useragentvariant_not_exists_1

Time: ✅ 39.599µs (SLO: <50.000µs 📉 -20.8%) vs baseline: +0.8%

Memory: ✅ 35.822MB (SLO: <36.000MB 🟡 -0.5%) vs baseline: +4.9%

✅ useragentvariant_not_exists_2

Time: ✅ 39.376µs (SLO: <50.000µs 📉 -21.2%) vs baseline: -0.1%

Memory: ✅ 35.881MB (SLO: <36.000MB 🟡 -0.3%) vs baseline: +4.9%

🟡 span - 26/26

✅ add-event

Time: ✅ 18.101ms (SLO: <22.500ms 📉 -19.5%) vs baseline: -0.3%

Memory: ✅ 37.090MB (SLO: <53.000MB 📉 -30.0%) vs baseline: +5.0%

✅ add-metrics

Time: ✅ 88.500ms (SLO: <93.500ms -5.3%) vs baseline: -0.2%

Memory: ✅ 41.206MB (SLO: <53.000MB 📉 -22.3%) vs baseline: +4.8%

✅ add-tags

Time: ✅ 142.202ms (SLO: <155.000ms -8.3%) vs baseline: ~same

Memory: ✅ 41.228MB (SLO: <53.000MB 📉 -22.2%) vs baseline: +4.7%

✅ get-context

Time: ✅ 16.958ms (SLO: <20.500ms 📉 -17.3%) vs baseline: +0.3%

Memory: ✅ 36.903MB (SLO: <53.000MB 📉 -30.4%) vs baseline: +5.0%

✅ is-recording

Time: ✅ 17.326ms (SLO: <20.500ms 📉 -15.5%) vs baseline: +1.3%

Memory: ✅ 36.884MB (SLO: <53.000MB 📉 -30.4%) vs baseline: +5.0%

✅ record-exception

Time: ✅ 36.580ms (SLO: <40.000ms -8.6%) vs baseline: ~same

Memory: ✅ 37.477MB (SLO: <53.000MB 📉 -29.3%) vs baseline: +4.9%

✅ set-status

Time: ✅ 18.786ms (SLO: <22.000ms 📉 -14.6%) vs baseline: +0.3%

Memory: ✅ 36.864MB (SLO: <53.000MB 📉 -30.4%) vs baseline: +5.0%

✅ start

Time: ✅ 17.418ms (SLO: <20.500ms 📉 -15.0%) vs baseline: +3.4%

Memory: ✅ 36.903MB (SLO: <53.000MB 📉 -30.4%) vs baseline: +4.7%

✅ start-finish

Time: ✅ 51.147ms (SLO: <52.500ms -2.6%) vs baseline: +0.4%

Memory: ✅ 34.819MB (SLO: <35.500MB 🟡 -1.9%) vs baseline: +4.9%

✅ start-finish-telemetry

Time: ✅ 52.039ms (SLO: <54.500ms -4.5%) vs baseline: +0.1%

Memory: ✅ 34.898MB (SLO: <35.500MB 🟡 -1.7%) vs baseline: +5.0%

✅ start-finish-traceid128

Time: ✅ 54.105ms (SLO: <57.000ms -5.1%) vs baseline: ~same

Memory: ✅ 34.839MB (SLO: <35.500MB 🟡 -1.9%) vs baseline: +4.7%

✅ start-traceid128

Time: ✅ 17.316ms (SLO: <22.500ms 📉 -23.0%) vs baseline: -0.6%

Memory: ✅ 36.962MB (SLO: <53.000MB 📉 -30.3%) vs baseline: +5.1%

✅ update-name

Time: ✅ 17.395ms (SLO: <22.000ms 📉 -20.9%) vs baseline: +0.8%

Memory: ✅ 36.904MB (SLO: <53.000MB 📉 -30.4%) vs baseline: +4.9%

🟡 tracer - 6/6

✅ large

Time: ✅ 29.172ms (SLO: <32.950ms 📉 -11.5%) vs baseline: -0.2%

Memory: ✅ 36.176MB (SLO: <36.500MB 🟡 -0.9%) vs baseline: +5.1%

✅ medium

Time: ✅ 2.880ms (SLO: <3.200ms 📉 -10.0%) vs baseline: +0.3%

Memory: ✅ 34.839MB (SLO: <35.500MB 🟡 -1.9%) vs baseline: +4.6%

✅ small

Time: ✅ 329.876µs (SLO: <370.000µs 📉 -10.8%) vs baseline: +1.5%

Memory: ✅ 34.898MB (SLO: <35.500MB 🟡 -1.7%) vs baseline: +4.9%

⚠️ Unstable Tests (1 suite)
⚠️ packagesupdateimporteddependencies - 24/24 (1 unstable)

✅ import_many

Time: ✅ 155.214µs (SLO: <170.000µs -8.7%) vs baseline: -0.2%

Memory: ✅ 39.448MB (SLO: <43.000MB -8.3%) vs baseline: +4.6%

✅ import_many_cached

Time: ✅ 120.953µs (SLO: <130.000µs -7.0%) vs baseline: -0.2%

Memory: ✅ 39.351MB (SLO: <43.000MB -8.5%) vs baseline: +4.3%

✅ import_many_stdlib

Time: ✅ 0.757ms (SLO: <1.750ms 📉 -56.8%) vs baseline: -0.4%

Memory: ✅ 39.664MB (SLO: <43.000MB -7.8%) vs baseline: +5.4%

⚠️ import_many_stdlib_cached

Time: ⚠️ 0.172ms (SLO: <1.100ms 📉 -84.4%) vs baseline: -0.1%

Memory: ✅ 39.853MB (SLO: <43.000MB -7.3%) vs baseline: +6.1%

✅ import_many_unknown

Time: ✅ 834.106µs (SLO: <890.000µs -6.3%) vs baseline: +0.3%

Memory: ✅ 39.692MB (SLO: <43.000MB -7.7%) vs baseline: +5.2%

✅ import_many_unknown_cached

Time: ✅ 793.074µs (SLO: <870.000µs -8.8%) vs baseline: -0.1%

Memory: ✅ 39.696MB (SLO: <43.000MB -7.7%) vs baseline: +5.0%

✅ import_one

Time: ✅ 19.684µs (SLO: <30.000µs 📉 -34.4%) vs baseline: +0.2%

Memory: ✅ 39.492MB (SLO: <43.000MB -8.2%) vs baseline: +4.9%

✅ import_one_cache

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

Memory: ✅ 39.500MB (SLO: <43.000MB -8.1%) vs baseline: +4.7%

✅ import_one_stdlib

Time: ✅ 18.701µs (SLO: <20.000µs -6.5%) vs baseline: +0.6%

Memory: ✅ 39.723MB (SLO: <43.000MB -7.6%) vs baseline: +5.5%

✅ import_one_stdlib_cache

Time: ✅ 6.323µs (SLO: <10.000µs 📉 -36.8%) vs baseline: +1.0%

Memory: ✅ 39.319MB (SLO: <43.000MB -8.6%) vs baseline: +4.1%

✅ import_one_unknown

Time: ✅ 45.451µs (SLO: <50.000µs -9.1%) vs baseline: +0.5%

Memory: ✅ 39.552MB (SLO: <43.000MB -8.0%) vs baseline: +4.9%

✅ import_one_unknown_cache

Time: ✅ 6.290µs (SLO: <10.000µs 📉 -37.1%) vs baseline: -0.2%

Memory: ✅ 39.508MB (SLO: <43.000MB -8.1%) vs baseline: +4.9%

✅ All Tests Passing (5 suites)
✅ iast_aspects - 40/40

✅ re_expand_aspect

Time: ✅ 3.737ms (SLO: <4.880ms 📉 -23.4%) vs baseline: +6.8%

Memory: ✅ 42.349MB (SLO: <43.500MB -2.6%) vs baseline: +5.1%

✅ re_expand_noaspect

Time: ✅ 3.494ms (SLO: <4.620ms 📉 -24.4%) vs baseline: -0.2%

Memory: ✅ 42.310MB (SLO: <43.500MB -2.7%) vs baseline: +5.1%

✅ re_findall_aspect

Time: ✅ 342.412µs (SLO: <450.000µs 📉 -23.9%) vs baseline: +0.3%

Memory: ✅ 42.310MB (SLO: <43.500MB -2.7%) vs baseline: +4.9%

✅ re_findall_noaspect

Time: ✅ 321.962µs (SLO: <430.000µs 📉 -25.1%) vs baseline: -0.6%

Memory: ✅ 42.290MB (SLO: <43.500MB -2.8%) vs baseline: +4.8%

✅ re_finditer_aspect

Time: ✅ 448.345µs (SLO: <590.000µs 📉 -24.0%) vs baseline: -0.1%

Memory: ✅ 42.231MB (SLO: <43.500MB -2.9%) vs baseline: +4.9%

✅ re_finditer_noaspect

Time: ✅ 326.864µs (SLO: <440.000µs 📉 -25.7%) vs baseline: +0.4%

Memory: ✅ 42.310MB (SLO: <43.500MB -2.7%) vs baseline: +4.9%

✅ re_fullmatch_aspect

Time: ✅ 274.752µs (SLO: <360.000µs 📉 -23.7%) vs baseline: ~same

Memory: ✅ 42.428MB (SLO: <43.500MB -2.5%) vs baseline: +4.9%

✅ re_fullmatch_noaspect

Time: ✅ 306.934µs (SLO: <400.000µs 📉 -23.3%) vs baseline: -0.2%

Memory: ✅ 42.271MB (SLO: <43.500MB -2.8%) vs baseline: +4.7%

✅ re_group_aspect

Time: ✅ 479.974µs (SLO: <630.000µs 📉 -23.8%) vs baseline: ~same

Memory: ✅ 42.408MB (SLO: <43.500MB -2.5%) vs baseline: +5.1%

✅ re_group_noaspect

Time: ✅ 480.582µs (SLO: <640.000µs 📉 -24.9%) vs baseline: -0.3%

Memory: ✅ 42.231MB (SLO: <43.500MB -2.9%) vs baseline: +4.4%

✅ re_groups_aspect

Time: ✅ 489.562µs (SLO: <650.000µs 📉 -24.7%) vs baseline: -0.6%

Memory: ✅ 42.389MB (SLO: <43.500MB -2.6%) vs baseline: +4.9%

✅ re_groups_noaspect

Time: ✅ 495.290µs (SLO: <650.000µs 📉 -23.8%) vs baseline: +0.2%

Memory: ✅ 42.389MB (SLO: <43.500MB -2.6%) vs baseline: +4.7%

✅ re_match_aspect

Time: ✅ 280.049µs (SLO: <370.000µs 📉 -24.3%) vs baseline: +1.0%

Memory: ✅ 42.172MB (SLO: <43.500MB -3.1%) vs baseline: +4.6%

✅ re_match_noaspect

Time: ✅ 307.055µs (SLO: <410.000µs 📉 -25.1%) vs baseline: +0.6%

Memory: ✅ 42.231MB (SLO: <43.500MB -2.9%) vs baseline: +4.7%

✅ re_search_aspect

Time: ✅ 262.106µs (SLO: <350.000µs 📉 -25.1%) vs baseline: +1.2%

Memory: ✅ 42.349MB (SLO: <43.500MB -2.6%) vs baseline: +4.6%

✅ re_search_noaspect

Time: ✅ 288.761µs (SLO: <380.000µs 📉 -24.0%) vs baseline: +0.9%

Memory: ✅ 42.330MB (SLO: <43.500MB -2.7%) vs baseline: +4.8%

✅ re_sub_aspect

Time: ✅ 350.437µs (SLO: <460.000µs 📉 -23.8%) vs baseline: -1.0%

Memory: ✅ 42.369MB (SLO: <43.500MB -2.6%) vs baseline: +5.0%

✅ re_sub_noaspect

Time: ✅ 391.676µs (SLO: <520.000µs 📉 -24.7%) vs baseline: -0.8%

Memory: ✅ 42.172MB (SLO: <43.500MB -3.1%) vs baseline: +4.9%

✅ re_subn_aspect

Time: ✅ 369.895µs (SLO: <490.000µs 📉 -24.5%) vs baseline: -0.4%

Memory: ✅ 42.330MB (SLO: <43.500MB -2.7%) vs baseline: +4.8%

✅ re_subn_noaspect

Time: ✅ 401.648µs (SLO: <530.000µs 📉 -24.2%) vs baseline: -1.5%

Memory: ✅ 42.271MB (SLO: <43.500MB -2.8%) vs baseline: +4.7%

✅ iastaspectssplit - 12/12

✅ rsplit_aspect

Time: ✅ 155.421µs (SLO: <250.000µs 📉 -37.8%) vs baseline: +3.3%

Memory: ✅ 42.743MB (SLO: <44.000MB -2.9%) vs baseline: +5.3%

✅ rsplit_noaspect

Time: ✅ 161.178µs (SLO: <250.000µs 📉 -35.5%) vs baseline: +1.1%

Memory: ✅ 42.782MB (SLO: <44.000MB -2.8%) vs baseline: +5.1%

✅ split_aspect

Time: ✅ 152.717µs (SLO: <250.000µs 📉 -38.9%) vs baseline: -1.0%

Memory: ✅ 42.625MB (SLO: <44.000MB -3.1%) vs baseline: +4.9%

✅ split_noaspect

Time: ✅ 163.563µs (SLO: <250.000µs 📉 -34.6%) vs baseline: +1.5%

Memory: ✅ 42.625MB (SLO: <44.000MB -3.1%) vs baseline: +4.7%

✅ splitlines_aspect

Time: ✅ 148.363µs (SLO: <250.000µs 📉 -40.7%) vs baseline: -1.2%

Memory: ✅ 42.526MB (SLO: <44.000MB -3.3%) vs baseline: +4.6%

✅ splitlines_noaspect

Time: ✅ 154.198µs (SLO: <250.000µs 📉 -38.3%) vs baseline: +0.6%

Memory: ✅ 42.625MB (SLO: <44.000MB -3.1%) vs baseline: +4.7%

✅ iastpropagation - 8/8

✅ no-propagation

Time: ✅ 48.849µs (SLO: <60.000µs 📉 -18.6%) vs baseline: -1.7%

Memory: ✅ 38.319MB (SLO: <42.000MB -8.8%) vs baseline: +5.0%

✅ propagation_enabled

Time: ✅ 136.816µs (SLO: <190.000µs 📉 -28.0%) vs baseline: -0.3%

Memory: ✅ 38.457MB (SLO: <42.000MB -8.4%) vs baseline: +5.3%

✅ propagation_enabled_100

Time: ✅ 1.570ms (SLO: <2.300ms 📉 -31.8%) vs baseline: -0.9%

Memory: ✅ 38.378MB (SLO: <42.000MB -8.6%) vs baseline: +4.7%

✅ propagation_enabled_1000

Time: ✅ 29.253ms (SLO: <34.550ms 📉 -15.3%) vs baseline: +0.8%

Memory: ✅ 38.673MB (SLO: <42.000MB -7.9%) vs baseline: +4.8%

✅ otelsdkspan - 24/24

✅ add-event

Time: ✅ 40.652ms (SLO: <42.000ms -3.2%) vs baseline: ~same

Memory: ✅ 37.847MB (SLO: <39.000MB -3.0%) vs baseline: +5.0%

✅ add-link

Time: ✅ 36.476ms (SLO: <38.550ms -5.4%) vs baseline: +0.4%

Memory: ✅ 37.768MB (SLO: <39.000MB -3.2%) vs baseline: +4.9%

✅ add-metrics

Time: ✅ 218.711ms (SLO: <232.000ms -5.7%) vs baseline: -0.4%

Memory: ✅ 37.808MB (SLO: <39.000MB -3.1%) vs baseline: +5.1%

✅ add-tags

Time: ✅ 212.130ms (SLO: <221.600ms -4.3%) vs baseline: +0.5%

Memory: ✅ 37.729MB (SLO: <39.000MB -3.3%) vs baseline: +4.7%

✅ get-context

Time: ✅ 29.342ms (SLO: <31.300ms -6.3%) vs baseline: +0.6%

Memory: ✅ 37.768MB (SLO: <39.000MB -3.2%) vs baseline: +5.0%

✅ is-recording

Time: ✅ 29.006ms (SLO: <31.000ms -6.4%) vs baseline: +0.2%

Memory: ✅ 37.788MB (SLO: <39.000MB -3.1%) vs baseline: +4.7%

✅ record-exception

Time: ✅ 63.056ms (SLO: <65.850ms -4.2%) vs baseline: -0.1%

Memory: ✅ 37.749MB (SLO: <39.000MB -3.2%) vs baseline: +4.9%

✅ set-status

Time: ✅ 31.914ms (SLO: <34.150ms -6.5%) vs baseline: +0.2%

Memory: ✅ 37.808MB (SLO: <39.000MB -3.1%) vs baseline: +4.8%

✅ start

Time: ✅ 29.187ms (SLO: <30.150ms -3.2%) vs baseline: +1.9%

Memory: ✅ 37.788MB (SLO: <39.000MB -3.1%) vs baseline: +4.7%

✅ start-finish

Time: ✅ 34.294ms (SLO: <35.350ms -3.0%) vs baseline: +1.6%

Memory: ✅ 37.788MB (SLO: <39.000MB -3.1%) vs baseline: +5.1%

✅ start-finish-telemetry

Time: ✅ 34.062ms (SLO: <35.450ms -3.9%) vs baseline: +0.5%

Memory: ✅ 37.749MB (SLO: <39.000MB -3.2%) vs baseline: +4.9%

✅ update-name

Time: ✅ 31.119ms (SLO: <33.400ms -6.8%) vs baseline: +0.3%

Memory: ✅ 37.749MB (SLO: <39.000MB -3.2%) vs baseline: +4.9%

✅ packagespackageforrootmodulemapping - 4/4

✅ cache_off

Time: ✅ 343.779ms (SLO: <354.300ms -3.0%) vs baseline: +0.2%

Memory: ✅ 40.860MB (SLO: <43.500MB -6.1%) vs baseline: +4.5%

✅ cache_on

Time: ✅ 0.379µs (SLO: <10.000µs 📉 -96.2%) vs baseline: -1.2%

Memory: ✅ 39.814MB (SLO: <43.000MB -7.4%) vs baseline: +4.7%

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

@taegyunkim taegyunkim force-pushed the prof-13436-interpreter branch from 1897c70 to f7f466d Compare January 12, 2026 20:43
@taegyunkim
fix(profiling): prevent unbounded loop in interpreter iteration
b05274d 
This fix resolves an issue where the stack profiler could loop infinitely 
when iterating through Python interpreter states. This could have occurred 
if the interpreter linked list became corrupted or contained a cycle, 
potentially causing the profiler to hang.

The fix adds both cycle detection and an iteration limit (256 interpreters) 
to prevent unbounded loops, following the same approach as CPython's tachyon 
profiler.
@taegyunkim taegyunkim force-pushed the prof-13436-interpreter branch from f7f466d to b05274d Compare January 12, 2026 20:43
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@gnufede gnufede gnufede approved these changes

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@taegyunkim @gnufede