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perf(profiling): use echion with memcpy #15030

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@KowalskiThomas KowalskiThomas commented Oct 24, 2025 •
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Description

This PR updates dd-trace-py to use the latest version of Echion.

The main change is the new "fast memory copy" feature that significantly reduces the time it takes to copy memory from the Python process by using a SEGV-guarded memcpy (no system call involved) instead of process_vm_readv.

echion/perf: use memcpy instead of process_vm_readv

This feature is experimental and we intend to test it within Datadog before making it widely available (and eventually, hopefully making it the default/only available option).

Currently, ddtrace cannot enable/disable the feature itself; the Echion library relies on the ECHION_USE_FAST_COPY_MEMORY environment variable on startup to enable/disable it.

Testing

The change has been tested on benchmarks, in the CI and inside the reliability environment. No crashes are happening.

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github-actions bot commented Oct 24, 2025 •
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CODEOWNERS have been resolved as:

releasenotes/notes/profiling-update-echion-1cb85860b04f891d.yaml        @DataDog/apm-python
ddtrace/internal/datadog/profiling/stack_v2/CMakeLists.txt              @DataDog/profiling-python

@KowalskiThomas KowalskiThomas force-pushed the kowalski/profiling-use-echion-with-memcpy branch from 7fab4f9 to d7a59f4 Compare October 24, 2025 13:03
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github-actions bot commented Oct 24, 2025 •
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Bootstrap import analysis

Comparison of import times between this PR and base.

Summary

The average import time from this PR is: 238 ± 2 ms.

The average import time from base is: 240 ± 2 ms.

The import time difference between this PR and base is: -2.2 ± 0.1 ms.

Import time breakdown

The following import paths have shrunk:

ddtrace.auto 1.986 ms (0.83%)
ddtrace.bootstrap.sitecustomize 1.310 ms (0.55%)
ddtrace.bootstrap.preload 1.310 ms (0.55%)
ddtrace.internal.remoteconfig.client 0.634 ms (0.27%)
ddtrace 0.676 ms (0.28%)
ddtrace.internal._unpatched 0.029 ms (0.01%)
json 0.029 ms (0.01%)
json.decoder 0.029 ms (0.01%)
re 0.029 ms (0.01%)
enum 0.029 ms (0.01%)
types 0.029 ms (0.01%)

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Performance SLOs

Comparing candidate kowalski/profiling-use-echion-with-memcpy (c1433c1) with baseline main (13e4d43)

🟡 Near SLO Breach (5 suites)
🟡 djangosimple - 30/30

✅ appsec

Time: ✅ 20.441ms (SLO: <22.300ms -8.3%) vs baseline: ~same

Memory: ✅ 65.979MB (SLO: <67.000MB 🟡 -1.5%) vs baseline: +4.7%

✅ exception-replay-enabled

Time: ✅ 1.341ms (SLO: <1.450ms -7.5%) vs baseline: -0.3%

Memory: ✅ 64.268MB (SLO: <67.000MB -4.1%) vs baseline: +4.9%

✅ iast

Time: ✅ 20.450ms (SLO: <22.250ms -8.1%) vs baseline: ~same

Memory: ✅ 66.044MB (SLO: <67.000MB 🟡 -1.4%) vs baseline: +5.0%

✅ profiler

Time: ✅ 15.562ms (SLO: <16.550ms -6.0%) vs baseline: +0.3%

Memory: ✅ 54.066MB (SLO: <54.500MB 🟡 -0.8%) vs baseline: +5.0%

✅ resource-renaming

Time: ✅ 20.501ms (SLO: <21.750ms -5.7%) vs baseline: -0.2%

Memory: ✅ 66.033MB (SLO: <67.000MB 🟡 -1.4%) vs baseline: +4.8%

✅ span-code-origin

Time: ✅ 25.463ms (SLO: <28.200ms -9.7%) vs baseline: +0.1%

Memory: ✅ 67.148MB (SLO: <69.500MB -3.4%) vs baseline: +4.8%

✅ tracer

Time: ✅ 20.449ms (SLO: <21.750ms -6.0%) vs baseline: ~same

Memory: ✅ 66.054MB (SLO: <67.000MB 🟡 -1.4%) vs baseline: +4.8%

✅ tracer-and-profiler

Time: ✅ 22.689ms (SLO: <23.500ms -3.5%) vs baseline: -0.3%

Memory: ✅ 67.498MB (SLO: <68.000MB 🟡 -0.7%) vs baseline: +5.0%

✅ tracer-dont-create-db-spans

Time: ✅ 19.292ms (SLO: <21.500ms 📉 -10.3%) vs baseline: ~same

Memory: ✅ 66.016MB (SLO: <67.000MB 🟡 -1.5%) vs baseline: +4.8%

✅ tracer-minimal

Time: ✅ 16.610ms (SLO: <17.500ms -5.1%) vs baseline: +0.2%

Memory: ✅ 65.959MB (SLO: <67.000MB 🟡 -1.6%) vs baseline: +4.8%

✅ tracer-native

Time: ✅ 20.447ms (SLO: <21.750ms -6.0%) vs baseline: +0.1%

Memory: ✅ 71.619MB (SLO: <72.500MB 🟡 -1.2%) vs baseline: +4.9%

✅ tracer-no-caches

Time: ✅ 18.529ms (SLO: <19.650ms -5.7%) vs baseline: +0.5%

Memory: ✅ 65.959MB (SLO: <67.000MB 🟡 -1.6%) vs baseline: +4.8%

✅ tracer-no-databases

Time: ✅ 18.808ms (SLO: <20.100ms -6.4%) vs baseline: ~same

Memory: ✅ 65.934MB (SLO: <67.000MB 🟡 -1.6%) vs baseline: +4.8%

✅ tracer-no-middleware

Time: ✅ 20.184ms (SLO: <21.500ms -6.1%) vs baseline: +0.2%

Memory: ✅ 66.038MB (SLO: <67.000MB 🟡 -1.4%) vs baseline: +4.9%

✅ tracer-no-templates

Time: ✅ 20.346ms (SLO: <22.000ms -7.5%) vs baseline: +0.2%

Memory: ✅ 65.963MB (SLO: <67.000MB 🟡 -1.5%) vs baseline: +4.8%

🟡 errortrackingdjangosimple - 6/6

✅ errortracking-enabled-all

Time: ✅ 18.117ms (SLO: <19.850ms -8.7%) vs baseline: +0.1%

Memory: ✅ 65.918MB (SLO: <66.500MB 🟡 -0.9%) vs baseline: +5.0%

✅ errortracking-enabled-user

Time: ✅ 18.015ms (SLO: <19.400ms -7.1%) vs baseline: ~same

Memory: ✅ 66.026MB (SLO: <66.500MB 🟡 -0.7%) vs baseline: +5.1%

✅ tracer-enabled

Time: ✅ 18.055ms (SLO: <19.450ms -7.2%) vs baseline: +0.2%

Memory: ✅ 65.910MB (SLO: <66.500MB 🟡 -0.9%) vs baseline: +4.9%

🟡 errortrackingflasksqli - 6/6

✅ errortracking-enabled-all

Time: ✅ 2.067ms (SLO: <2.300ms 📉 -10.1%) vs baseline: +0.1%

Memory: ✅ 52.632MB (SLO: <53.500MB 🟡 -1.6%) vs baseline: +4.8%

✅ errortracking-enabled-user

Time: ✅ 2.065ms (SLO: <2.250ms -8.2%) vs baseline: +0.1%

Memory: ✅ 52.612MB (SLO: <53.500MB 🟡 -1.7%) vs baseline: +4.9%

✅ tracer-enabled

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

Memory: ✅ 52.573MB (SLO: <53.500MB 🟡 -1.7%) vs baseline: +4.7%

🟡 flasksimple - 18/18

✅ appsec-get

Time: ✅ 4.591ms (SLO: <4.750ms -3.4%) vs baseline: +0.2%

Memory: ✅ 62.356MB (SLO: <65.000MB -4.1%) vs baseline: +4.8%

✅ appsec-post

Time: ✅ 6.634ms (SLO: <6.750ms 🟡 -1.7%) vs baseline: +0.3%

Memory: ✅ 62.336MB (SLO: <65.000MB -4.1%) vs baseline: +4.9%

✅ appsec-telemetry

Time: ✅ 4.603ms (SLO: <4.750ms -3.1%) vs baseline: +0.5%

Memory: ✅ 62.375MB (SLO: <65.000MB -4.0%) vs baseline: +4.8%

✅ debugger

Time: ✅ 1.856ms (SLO: <2.000ms -7.2%) vs baseline: ~same

Memory: ✅ 45.329MB (SLO: <47.000MB -3.6%) vs baseline: +4.7%

✅ iast-get

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

Memory: ✅ 42.179MB (SLO: <49.000MB 📉 -13.9%) vs baseline: +4.7%

✅ profiler

Time: ✅ 1.918ms (SLO: <2.100ms -8.7%) vs baseline: +0.2%

Memory: ✅ 46.356MB (SLO: <47.000MB 🟡 -1.4%) vs baseline: +4.7%

✅ resource-renaming

Time: ✅ 3.372ms (SLO: <3.650ms -7.6%) vs baseline: +0.2%

Memory: ✅ 52.691MB (SLO: <53.500MB 🟡 -1.5%) vs baseline: +4.8%

✅ tracer

Time: ✅ 3.357ms (SLO: <3.650ms -8.0%) vs baseline: +0.3%

Memory: ✅ 52.744MB (SLO: <53.500MB 🟡 -1.4%) vs baseline: +5.1%

✅ tracer-native

Time: ✅ 3.357ms (SLO: <3.650ms -8.0%) vs baseline: +0.3%

Memory: ✅ 58.235MB (SLO: <60.000MB -2.9%) vs baseline: +5.0%

🟡 flasksqli - 6/6

✅ appsec-enabled

Time: ✅ 3.972ms (SLO: <4.200ms -5.4%) vs baseline: -0.1%

Memory: ✅ 62.246MB (SLO: <66.000MB -5.7%) vs baseline: +4.8%

✅ iast-enabled

Time: ✅ 2.441ms (SLO: <2.800ms 📉 -12.8%) vs baseline: +0.5%

Memory: ✅ 59.179MB (SLO: <60.000MB 🟡 -1.4%) vs baseline: +4.9%

✅ tracer-enabled

Time: ✅ 2.060ms (SLO: <2.250ms -8.4%) vs baseline: -0.2%

Memory: ✅ 52.612MB (SLO: <54.500MB -3.5%) vs baseline: +4.8%

⚠️ Unstable Tests (1 suite)
⚠️ coreapiscenario - 10/10 (1 unstable)

⚠️ context_with_data_listeners

Time: ⚠️ 13.258µs (SLO: <20.000µs 📉 -33.7%) vs baseline: ~same

Memory: ✅ 31.733MB (SLO: <33.500MB -5.3%) vs baseline: +5.0%

✅ context_with_data_no_listeners

Time: ✅ 3.265µs (SLO: <10.000µs 📉 -67.4%) vs baseline: -1.9%

Memory: ✅ 31.634MB (SLO: <33.500MB -5.6%) vs baseline: +4.6%

✅ get_item_exists

Time: ✅ 0.583µs (SLO: <10.000µs 📉 -94.2%) vs baseline: -0.1%

Memory: ✅ 31.674MB (SLO: <33.500MB -5.5%) vs baseline: +5.1%

✅ get_item_missing

Time: ✅ 0.634µs (SLO: <10.000µs 📉 -93.7%) vs baseline: -1.3%

Memory: ✅ 31.654MB (SLO: <33.500MB -5.5%) vs baseline: +4.7%

✅ set_item

Time: ✅ 24.119µs (SLO: <30.000µs 📉 -19.6%) vs baseline: +0.1%

Memory: ✅ 31.693MB (SLO: <33.500MB -5.4%) vs baseline: +5.0%

✅ All Tests Passing (18 suites)
✅ httppropagationextract - 60/60

✅ all_styles_all_headers

Time: ✅ 82.218µs (SLO: <100.000µs 📉 -17.8%) vs baseline: +0.4%

Memory: ✅ 32.126MB (SLO: <33.500MB -4.1%) vs baseline: +4.8%

✅ b3_headers

Time: ✅ 14.218µs (SLO: <20.000µs 📉 -28.9%) vs baseline: +0.2%

Memory: ✅ 32.165MB (SLO: <33.500MB -4.0%) vs baseline: +4.7%

✅ b3_single_headers

Time: ✅ 13.502µs (SLO: <20.000µs 📉 -32.5%) vs baseline: +1.2%

Memory: ✅ 32.185MB (SLO: <33.500MB -3.9%) vs baseline: +5.1%

✅ datadog_tracecontext_tracestate_not_propagated_on_trace_id_no_match

Time: ✅ 64.357µs (SLO: <80.000µs 📉 -19.6%) vs baseline: -0.2%

Memory: ✅ 32.185MB (SLO: <33.500MB -3.9%) vs baseline: +5.0%

✅ datadog_tracecontext_tracestate_propagated_on_trace_id_match

Time: ✅ 67.950µs (SLO: <80.000µs 📉 -15.1%) vs baseline: +1.8%

Memory: ✅ 32.086MB (SLO: <33.500MB -4.2%) vs baseline: +4.6%

✅ empty_headers

Time: ✅ 1.604µs (SLO: <10.000µs 📉 -84.0%) vs baseline: +0.4%

Memory: ✅ 32.165MB (SLO: <33.500MB -4.0%) vs baseline: +4.7%

✅ full_t_id_datadog_headers

Time: ✅ 22.985µs (SLO: <30.000µs 📉 -23.4%) vs baseline: -0.7%

Memory: ✅ 32.106MB (SLO: <33.500MB -4.2%) vs baseline: +4.5%

✅ invalid_priority_header

Time: ✅ 6.559µs (SLO: <10.000µs 📉 -34.4%) vs baseline: -0.2%

Memory: ✅ 32.165MB (SLO: <33.500MB -4.0%) vs baseline: +4.9%

✅ invalid_span_id_header

Time: ✅ 6.555µs (SLO: <10.000µs 📉 -34.4%) vs baseline: -0.2%

Memory: ✅ 32.086MB (SLO: <33.500MB -4.2%) vs baseline: +4.7%

✅ invalid_tags_header

Time: ✅ 6.538µs (SLO: <10.000µs 📉 -34.6%) vs baseline: +0.4%

Memory: ✅ 32.204MB (SLO: <33.500MB -3.9%) vs baseline: +4.9%

✅ invalid_trace_id_header

Time: ✅ 6.554µs (SLO: <10.000µs 📉 -34.5%) vs baseline: ~same

Memory: ✅ 32.126MB (SLO: <33.500MB -4.1%) vs baseline: +4.6%

✅ large_header_no_matches

Time: ✅ 28.137µs (SLO: <30.000µs -6.2%) vs baseline: +0.3%

Memory: ✅ 32.126MB (SLO: <33.500MB -4.1%) vs baseline: +4.9%

✅ large_valid_headers_all

Time: ✅ 29.229µs (SLO: <40.000µs 📉 -26.9%) vs baseline: +0.4%

Memory: ✅ 32.165MB (SLO: <33.500MB -4.0%) vs baseline: +4.8%

✅ medium_header_no_matches

Time: ✅ 9.924µs (SLO: <20.000µs 📉 -50.4%) vs baseline: +0.3%

Memory: ✅ 32.204MB (SLO: <33.500MB -3.9%) vs baseline: +4.9%

✅ medium_valid_headers_all

Time: ✅ 11.225µs (SLO: <20.000µs 📉 -43.9%) vs baseline: -0.4%

Memory: ✅ 32.165MB (SLO: <33.500MB -4.0%) vs baseline: +4.7%

✅ none_propagation_style

Time: ✅ 1.713µs (SLO: <10.000µs 📉 -82.9%) vs baseline: -0.3%

Memory: ✅ 32.185MB (SLO: <33.500MB -3.9%) vs baseline: +4.9%

✅ tracecontext_headers

Time: ✅ 34.744µs (SLO: <40.000µs 📉 -13.1%) vs baseline: -0.1%

Memory: ✅ 32.185MB (SLO: <33.500MB -3.9%) vs baseline: +4.9%

✅ valid_headers_all

Time: ✅ 6.565µs (SLO: <10.000µs 📉 -34.4%) vs baseline: +0.1%

Memory: ✅ 32.204MB (SLO: <33.500MB -3.9%) vs baseline: +5.0%

✅ valid_headers_basic

Time: ✅ 6.189µs (SLO: <10.000µs 📉 -38.1%) vs baseline: +0.8%

Memory: ✅ 32.165MB (SLO: <33.500MB -4.0%) vs baseline: +4.9%

✅ wsgi_empty_headers

Time: ✅ 1.595µs (SLO: <10.000µs 📉 -84.0%) vs baseline: -1.5%

Memory: ✅ 32.165MB (SLO: <33.500MB -4.0%) vs baseline: +4.8%

✅ wsgi_invalid_priority_header

Time: ✅ 6.643µs (SLO: <10.000µs 📉 -33.6%) vs baseline: +0.9%

Memory: ✅ 32.224MB (SLO: <33.500MB -3.8%) vs baseline: +5.0%

✅ wsgi_invalid_span_id_header

Time: ✅ 1.587µs (SLO: <10.000µs 📉 -84.1%) vs baseline: -0.9%

Memory: ✅ 32.086MB (SLO: <33.500MB -4.2%) vs baseline: +4.7%

✅ wsgi_invalid_tags_header

Time: ✅ 6.579µs (SLO: <10.000µs 📉 -34.2%) vs baseline: -0.2%

Memory: ✅ 32.185MB (SLO: <33.500MB -3.9%) vs baseline: +5.2%

✅ wsgi_invalid_trace_id_header

Time: ✅ 6.563µs (SLO: <10.000µs 📉 -34.4%) vs baseline: +0.6%

Memory: ✅ 32.126MB (SLO: <33.500MB -4.1%) vs baseline: +5.0%

✅ wsgi_large_header_no_matches

Time: ✅ 29.174µs (SLO: <40.000µs 📉 -27.1%) vs baseline: +0.1%

Memory: ✅ 32.106MB (SLO: <33.500MB -4.2%) vs baseline: +4.6%

✅ wsgi_large_valid_headers_all

Time: ✅ 30.412µs (SLO: <40.000µs 📉 -24.0%) vs baseline: +0.6%

Memory: ✅ 32.126MB (SLO: <33.500MB -4.1%) vs baseline: +4.7%

✅ wsgi_medium_header_no_matches

Time: ✅ 10.145µs (SLO: <20.000µs 📉 -49.3%) vs baseline: +0.2%

Memory: ✅ 32.165MB (SLO: <33.500MB -4.0%) vs baseline: +4.7%

✅ wsgi_medium_valid_headers_all

Time: ✅ 11.543µs (SLO: <20.000µs 📉 -42.3%) vs baseline: +0.1%

Memory: ✅ 32.126MB (SLO: <33.500MB -4.1%) vs baseline: +4.7%

✅ wsgi_valid_headers_all

Time: ✅ 6.649µs (SLO: <10.000µs 📉 -33.5%) vs baseline: +1.1%

Memory: ✅ 32.106MB (SLO: <33.500MB -4.2%) vs baseline: +4.8%

✅ wsgi_valid_headers_basic

Time: ✅ 6.106µs (SLO: <10.000µs 📉 -38.9%) vs baseline: -0.5%

Memory: ✅ 32.067MB (SLO: <33.500MB -4.3%) vs baseline: +4.4%

✅ httppropagationinject - 16/16

✅ ids_only

Time: ✅ 21.013µs (SLO: <30.000µs 📉 -30.0%) vs baseline: -0.2%

Memory: ✅ 32.086MB (SLO: <33.500MB -4.2%) vs baseline: +4.6%

✅ with_all

Time: ✅ 29.745µs (SLO: <40.000µs 📉 -25.6%) vs baseline: +4.5%

Memory: ✅ 32.185MB (SLO: <33.500MB -3.9%) vs baseline: +4.9%

✅ with_dd_origin

Time: ✅ 24.776µs (SLO: <30.000µs 📉 -17.4%) vs baseline: -0.1%

Memory: ✅ 32.204MB (SLO: <33.500MB -3.9%) vs baseline: +5.0%

✅ with_priority_and_origin

Time: ✅ 24.457µs (SLO: <40.000µs 📉 -38.9%) vs baseline: +1.1%

Memory: ✅ 32.224MB (SLO: <33.500MB -3.8%) vs baseline: +5.0%

✅ with_sampling_priority

Time: ✅ 21.069µs (SLO: <30.000µs 📉 -29.8%) vs baseline: ~same

Memory: ✅ 32.165MB (SLO: <33.500MB -4.0%) vs baseline: +4.7%

✅ with_tags

Time: ✅ 26.458µs (SLO: <40.000µs 📉 -33.9%) vs baseline: ~same

Memory: ✅ 32.244MB (SLO: <33.500MB -3.8%) vs baseline: +5.0%

✅ with_tags_invalid

Time: ✅ 28.045µs (SLO: <40.000µs 📉 -29.9%) vs baseline: +0.1%

Memory: ✅ 32.165MB (SLO: <33.500MB -4.0%) vs baseline: +4.8%

✅ with_tags_max_size

Time: ✅ 27.307µs (SLO: <40.000µs 📉 -31.7%) vs baseline: +1.1%

Memory: ✅ 32.145MB (SLO: <33.500MB -4.0%) vs baseline: +4.9%

✅ iast_aspects - 40/40

✅ re_expand_aspect

Time: ✅ 32.515µs (SLO: <40.000µs 📉 -18.7%) vs baseline: +2.4%

Memory: ✅ 37.650MB (SLO: <39.000MB -3.5%) vs baseline: +4.7%

✅ re_expand_noaspect

Time: ✅ 28.476µs (SLO: <40.000µs 📉 -28.8%) vs baseline: -0.4%

Memory: ✅ 37.690MB (SLO: <39.000MB -3.4%) vs baseline: +4.9%

✅ re_findall_aspect

Time: ✅ 2.919µs (SLO: <10.000µs 📉 -70.8%) vs baseline: +0.5%

Memory: ✅ 37.631MB (SLO: <39.000MB -3.5%) vs baseline: +4.9%

✅ re_findall_noaspect

Time: ✅ 1.414µs (SLO: <10.000µs 📉 -85.9%) vs baseline: ~same

Memory: ✅ 37.690MB (SLO: <39.000MB -3.4%) vs baseline: +5.0%

✅ re_finditer_aspect

Time: ✅ 4.402µs (SLO: <10.000µs 📉 -56.0%) vs baseline: -0.6%

Memory: ✅ 37.611MB (SLO: <39.000MB -3.6%) vs baseline: +4.7%

✅ re_finditer_noaspect

Time: ✅ 1.407µs (SLO: <10.000µs 📉 -85.9%) vs baseline: -0.3%

Memory: ✅ 37.670MB (SLO: <39.000MB -3.4%) vs baseline: +5.0%

✅ re_fullmatch_aspect

Time: ✅ 2.645µs (SLO: <10.000µs 📉 -73.6%) vs baseline: -0.2%

Memory: ✅ 37.650MB (SLO: <39.000MB -3.5%) vs baseline: +4.9%

✅ re_fullmatch_noaspect

Time: ✅ 1.299µs (SLO: <10.000µs 📉 -87.0%) vs baseline: +0.5%

Memory: ✅ 37.709MB (SLO: <39.000MB -3.3%) vs baseline: +5.0%

✅ re_group_aspect

Time: ✅ 2.943µs (SLO: <10.000µs 📉 -70.6%) vs baseline: +1.6%

Memory: ✅ 37.650MB (SLO: <39.000MB -3.5%) vs baseline: +4.9%

✅ re_group_noaspect

Time: ✅ 1.624µs (SLO: <10.000µs 📉 -83.8%) vs baseline: +0.8%

Memory: ✅ 37.611MB (SLO: <39.000MB -3.6%) vs baseline: +4.7%

✅ re_groups_aspect

Time: ✅ 3.210µs (SLO: <10.000µs 📉 -67.9%) vs baseline: +4.7%

Memory: ✅ 37.591MB (SLO: <39.000MB -3.6%) vs baseline: +5.0%

✅ re_groups_noaspect

Time: ✅ 1.702µs (SLO: <10.000µs 📉 -83.0%) vs baseline: +0.6%

Memory: ✅ 37.670MB (SLO: <39.000MB -3.4%) vs baseline: +4.8%

✅ re_match_aspect

Time: ✅ 2.875µs (SLO: <10.000µs 📉 -71.3%) vs baseline: +7.0%

Memory: ✅ 37.690MB (SLO: <39.000MB -3.4%) vs baseline: +4.9%

✅ re_match_noaspect

Time: ✅ 1.298µs (SLO: <10.000µs 📉 -87.0%) vs baseline: +0.3%

Memory: ✅ 37.631MB (SLO: <39.000MB -3.5%) vs baseline: +4.9%

✅ re_search_aspect

Time: ✅ 2.750µs (SLO: <10.000µs 📉 -72.5%) vs baseline: +8.9%

Memory: ✅ 37.631MB (SLO: <39.000MB -3.5%) vs baseline: +4.8%

✅ re_search_noaspect

Time: ✅ 1.213µs (SLO: <10.000µs 📉 -87.9%) vs baseline: +0.9%

Memory: ✅ 37.611MB (SLO: <39.000MB -3.6%) vs baseline: +4.7%

✅ re_sub_aspect

Time: ✅ 3.421µs (SLO: <10.000µs 📉 -65.8%) vs baseline: +1.1%

Memory: ✅ 37.670MB (SLO: <39.000MB -3.4%) vs baseline: +4.9%

✅ re_sub_noaspect

Time: ✅ 1.538µs (SLO: <10.000µs 📉 -84.6%) vs baseline: +0.7%

Memory: ✅ 37.650MB (SLO: <39.000MB -3.5%) vs baseline: +4.7%

✅ re_subn_aspect

Time: ✅ 3.690µs (SLO: <10.000µs 📉 -63.1%) vs baseline: +0.8%

Memory: ✅ 37.650MB (SLO: <39.000MB -3.5%) vs baseline: +4.9%

✅ re_subn_noaspect

Time: ✅ 1.599µs (SLO: <10.000µs 📉 -84.0%) vs baseline: -0.8%

Memory: ✅ 37.650MB (SLO: <39.000MB -3.5%) vs baseline: +5.0%

✅ iastaspects - 118/118

✅ add_aspect

Time: ✅ 0.411µs (SLO: <10.000µs 📉 -95.9%) vs baseline: +1.3%

Memory: ✅ 38.004MB (SLO: <39.000MB -2.6%) vs baseline: +4.6%

✅ add_inplace_aspect

Time: ✅ 0.408µs (SLO: <10.000µs 📉 -95.9%) vs baseline: -0.6%

Memory: ✅ 38.004MB (SLO: <39.000MB -2.6%) vs baseline: +4.7%

✅ add_inplace_noaspect

Time: ✅ 0.317µs (SLO: <10.000µs 📉 -96.8%) vs baseline: -1.0%

Memory: ✅ 38.063MB (SLO: <39.000MB -2.4%) vs baseline: +5.0%

✅ add_noaspect

Time: ✅ 0.276µs (SLO: <10.000µs 📉 -97.2%) vs baseline: -1.4%

Memory: ✅ 37.945MB (SLO: <39.000MB -2.7%) vs baseline: +4.4%

✅ bytearray_aspect

Time: ✅ 1.365µs (SLO: <10.000µs 📉 -86.3%) vs baseline: +0.9%

Memory: ✅ 38.004MB (SLO: <39.000MB -2.6%) vs baseline: +4.6%

✅ bytearray_extend_aspect

Time: ✅ 1.506µs (SLO: <10.000µs 📉 -84.9%) vs baseline: ~same

Memory: ✅ 37.985MB (SLO: <39.000MB -2.6%) vs baseline: +4.9%

✅ bytearray_extend_noaspect

Time: ✅ 0.614µs (SLO: <10.000µs 📉 -93.9%) vs baseline: +0.9%

Memory: ✅ 38.122MB (SLO: <39.000MB -2.3%) vs baseline: +5.1%

✅ bytearray_noaspect

Time: ✅ 0.478µs (SLO: <10.000µs 📉 -95.2%) vs baseline: -1.5%

Memory: ✅ 38.004MB (SLO: <39.000MB -2.6%) vs baseline: +4.7%

✅ bytes_aspect

Time: ✅ 1.320µs (SLO: <10.000µs 📉 -86.8%) vs baseline: +2.7%

Memory: ✅ 38.063MB (SLO: <39.000MB -2.4%) vs baseline: +4.9%

✅ bytes_noaspect

Time: ✅ 0.492µs (SLO: <10.000µs 📉 -95.1%) vs baseline: -1.3%

Memory: ✅ 38.024MB (SLO: <39.000MB -2.5%) vs baseline: +4.9%

✅ bytesio_aspect

Time: ✅ 1.355µs (SLO: <10.000µs 📉 -86.4%) vs baseline: ~same

Memory: ✅ 38.004MB (SLO: <39.000MB -2.6%) vs baseline: +4.9%

✅ bytesio_noaspect

Time: ✅ 0.500µs (SLO: <10.000µs 📉 -95.0%) vs baseline: +0.9%

Memory: ✅ 38.083MB (SLO: <39.000MB -2.4%) vs baseline: +4.9%

✅ capitalize_aspect

Time: ✅ 0.735µs (SLO: <10.000µs 📉 -92.6%) vs baseline: -1.1%

Memory: ✅ 38.024MB (SLO: <39.000MB -2.5%) vs baseline: +4.8%

✅ capitalize_noaspect

Time: ✅ 0.436µs (SLO: <10.000µs 📉 -95.6%) vs baseline: +0.3%

Memory: ✅ 38.044MB (SLO: <39.000MB -2.5%) vs baseline: +4.9%

✅ casefold_aspect

Time: ✅ 0.743µs (SLO: <10.000µs 📉 -92.6%) vs baseline: +1.0%

Memory: ✅ 37.965MB (SLO: <39.000MB -2.7%) vs baseline: +4.6%

✅ casefold_noaspect

Time: ✅ 0.371µs (SLO: <10.000µs 📉 -96.3%) vs baseline: +1.4%

Memory: ✅ 38.063MB (SLO: <39.000MB -2.4%) vs baseline: +4.9%

✅ decode_aspect

Time: ✅ 0.723µs (SLO: <10.000µs 📉 -92.8%) vs baseline: -0.3%

Memory: ✅ 38.024MB (SLO: <39.000MB -2.5%) vs baseline: +4.7%

✅ decode_noaspect

Time: ✅ 0.420µs (SLO: <10.000µs 📉 -95.8%) vs baseline: +0.8%

Memory: ✅ 37.985MB (SLO: <39.000MB -2.6%) vs baseline: +4.6%

✅ encode_aspect

Time: ✅ 0.706µs (SLO: <10.000µs 📉 -92.9%) vs baseline: -0.2%

Memory: ✅ 38.044MB (SLO: <39.000MB -2.5%) vs baseline: +4.9%

✅ encode_noaspect

Time: ✅ 0.400µs (SLO: <10.000µs 📉 -96.0%) vs baseline: -0.6%

Memory: ✅ 38.063MB (SLO: <39.000MB -2.4%) vs baseline: +4.9%

✅ format_aspect

Time: ✅ 3.429µs (SLO: <10.000µs 📉 -65.7%) vs baseline: +0.8%

Memory: ✅ 38.083MB (SLO: <39.000MB -2.4%) vs baseline: +5.1%

✅ format_map_aspect

Time: ✅ 3.710µs (SLO: <10.000µs 📉 -62.9%) vs baseline: +2.2%

Memory: ✅ 38.044MB (SLO: <39.000MB -2.5%) vs baseline: +4.7%

✅ format_map_noaspect

Time: ✅ 0.773µs (SLO: <10.000µs 📉 -92.3%) vs baseline: +0.3%

Memory: ✅ 38.103MB (SLO: <39.000MB -2.3%) vs baseline: +5.0%

✅ format_noaspect

Time: ✅ 0.592µs (SLO: <10.000µs 📉 -94.1%) vs baseline: +0.2%

Memory: ✅ 38.083MB (SLO: <39.000MB -2.4%) vs baseline: +4.9%

✅ index_aspect

Time: ✅ 0.354µs (SLO: <10.000µs 📉 -96.5%) vs baseline: -2.4%

Memory: ✅ 38.044MB (SLO: <39.000MB -2.5%) vs baseline: +5.0%

✅ index_noaspect

Time: ✅ 0.282µs (SLO: <10.000µs 📉 -97.2%) vs baseline: +1.1%

Memory: ✅ 38.044MB (SLO: <39.000MB -2.5%) vs baseline: +4.9%

✅ join_aspect

Time: ✅ 1.356µs (SLO: <10.000µs 📉 -86.4%) vs baseline: +0.4%

Memory: ✅ 38.044MB (SLO: <39.000MB -2.5%) vs baseline: +4.9%

✅ join_noaspect

Time: ✅ 0.491µs (SLO: <10.000µs 📉 -95.1%) vs baseline: +0.4%

Memory: ✅ 38.122MB (SLO: <39.000MB -2.3%) vs baseline: +4.9%

✅ ljust_aspect

Time: ✅ 2.580µs (SLO: <20.000µs 📉 -87.1%) vs baseline: -0.5%

Memory: ✅ 38.044MB (SLO: <39.000MB -2.5%) vs baseline: +4.8%

✅ ljust_noaspect

Time: ✅ 0.402µs (SLO: <10.000µs 📉 -96.0%) vs baseline: -1.3%

Memory: ✅ 38.063MB (SLO: <39.000MB -2.4%) vs baseline: +4.9%

✅ lower_aspect

Time: ✅ 2.188µs (SLO: <10.000µs 📉 -78.1%) vs baseline: -0.3%

Memory: ✅ 38.004MB (SLO: <39.000MB -2.6%) vs baseline: +4.9%

✅ lower_noaspect

Time: ✅ 0.370µs (SLO: <10.000µs 📉 -96.3%) vs baseline: +0.2%

Memory: ✅ 38.083MB (SLO: <39.000MB -2.4%) vs baseline: +5.0%

✅ lstrip_aspect

Time: ✅ 2.212µs (SLO: <20.000µs 📉 -88.9%) vs baseline: +0.7%

Memory: ✅ 37.985MB (SLO: <39.000MB -2.6%) vs baseline: +4.8%

✅ lstrip_noaspect

Time: ✅ 0.383µs (SLO: <10.000µs 📉 -96.2%) vs baseline: +0.6%

Memory: ✅ 38.044MB (SLO: <39.000MB -2.5%) vs baseline: +4.9%

✅ modulo_aspect

Time: ✅ 0.994µs (SLO: <10.000µs 📉 -90.1%) vs baseline: -0.3%

Memory: ✅ 37.965MB (SLO: <39.000MB -2.7%) vs baseline: +4.4%

✅ modulo_aspect_for_bytearray_bytearray

Time: ✅ 1.619µs (SLO: <10.000µs 📉 -83.8%) vs baseline: +4.2%

Memory: ✅ 38.024MB (SLO: <39.000MB -2.5%) vs baseline: +4.7%

✅ modulo_aspect_for_bytes

Time: ✅ 0.973µs (SLO: <10.000µs 📉 -90.3%) vs baseline: +0.3%

Memory: ✅ 38.044MB (SLO: <39.000MB -2.5%) vs baseline: +4.7%

✅ modulo_aspect_for_bytes_bytearray

Time: ✅ 1.214µs (SLO: <10.000µs 📉 -87.9%) vs baseline: -0.9%

Memory: ✅ 38.024MB (SLO: <39.000MB -2.5%) vs baseline: +4.8%

✅ modulo_noaspect

Time: ✅ 0.628µs (SLO: <10.000µs 📉 -93.7%) vs baseline: +0.1%

Memory: ✅ 38.024MB (SLO: <39.000MB -2.5%) vs baseline: +4.8%

✅ replace_aspect

Time: ✅ 4.946µs (SLO: <10.000µs 📉 -50.5%) vs baseline: -0.6%

Memory: ✅ 38.063MB (SLO: <39.000MB -2.4%) vs baseline: +5.0%

✅ replace_noaspect

Time: ✅ 0.465µs (SLO: <10.000µs 📉 -95.4%) vs baseline: +1.3%

Memory: ✅ 38.044MB (SLO: <39.000MB -2.5%) vs baseline: +5.0%

✅ repr_aspect

Time: ✅ 0.912µs (SLO: <10.000µs 📉 -90.9%) vs baseline: +0.8%

Memory: ✅ 38.063MB (SLO: <39.000MB -2.4%) vs baseline: +5.0%

✅ repr_noaspect

Time: ✅ 0.414µs (SLO: <10.000µs 📉 -95.9%) vs baseline: +0.2%

Memory: ✅ 38.142MB (SLO: <39.000MB -2.2%) vs baseline: +5.3%

✅ rstrip_aspect

Time: ✅ 1.943µs (SLO: <20.000µs 📉 -90.3%) vs baseline: +2.0%

Memory: ✅ 38.004MB (SLO: <39.000MB -2.6%) vs baseline: +4.6%

✅ rstrip_noaspect

Time: ✅ 0.378µs (SLO: <10.000µs 📉 -96.2%) vs baseline: -0.8%

Memory: ✅ 38.103MB (SLO: <39.000MB -2.3%) vs baseline: +5.0%

✅ slice_aspect

Time: ✅ 0.493µs (SLO: <10.000µs 📉 -95.1%) vs baseline: -0.3%

Memory: ✅ 38.024MB (SLO: <39.000MB -2.5%) vs baseline: +5.0%

✅ slice_noaspect

Time: ✅ 0.450µs (SLO: <10.000µs 📉 -95.5%) vs baseline: +1.1%

Memory: ✅ 37.985MB (SLO: <39.000MB -2.6%) vs baseline: +4.6%

✅ stringio_aspect

Time: ✅ 1.567µs (SLO: <10.000µs 📉 -84.3%) vs baseline: +0.1%

Memory: ✅ 38.024MB (SLO: <39.000MB -2.5%) vs baseline: +4.9%

✅ stringio_noaspect

Time: ✅ 0.708µs (SLO: <10.000µs 📉 -92.9%) vs baseline: -0.9%

Memory: ✅ 38.103MB (SLO: <39.000MB -2.3%) vs baseline: +5.1%

✅ strip_aspect

Time: ✅ 2.204µs (SLO: <20.000µs 📉 -89.0%) vs baseline: +0.2%

Memory: ✅ 38.063MB (SLO: <39.000MB -2.4%) vs baseline: +4.7%

✅ strip_noaspect

Time: ✅ 0.386µs (SLO: <10.000µs 📉 -96.1%) vs baseline: +0.9%

Memory: ✅ 38.004MB (SLO: <39.000MB -2.6%) vs baseline: +4.7%

✅ swapcase_aspect

Time: ✅ 2.388µs (SLO: <10.000µs 📉 -76.1%) vs baseline: -0.7%

Memory: ✅ 38.083MB (SLO: <39.000MB -2.4%) vs baseline: +4.7%

✅ swapcase_noaspect

Time: ✅ 0.533µs (SLO: <10.000µs 📉 -94.7%) vs baseline: ~same

Memory: ✅ 38.024MB (SLO: <39.000MB -2.5%) vs baseline: +4.8%

✅ title_aspect

Time: ✅ 2.304µs (SLO: <10.000µs 📉 -77.0%) vs baseline: -0.8%

Memory: ✅ 38.122MB (SLO: <39.000MB -2.3%) vs baseline: +5.1%

✅ title_noaspect

Time: ✅ 0.498µs (SLO: <10.000µs 📉 -95.0%) vs baseline: +0.1%

Memory: ✅ 38.044MB (SLO: <39.000MB -2.5%) vs baseline: +4.8%

✅ translate_aspect

Time: ✅ 3.244µs (SLO: <10.000µs 📉 -67.6%) vs baseline: +0.4%

Memory: ✅ 38.083MB (SLO: <39.000MB -2.4%) vs baseline: +5.1%

✅ translate_noaspect

Time: ✅ 1.037µs (SLO: <10.000µs 📉 -89.6%) vs baseline: -0.3%

Memory: ✅ 38.024MB (SLO: <39.000MB -2.5%) vs baseline: +4.7%

✅ upper_aspect

Time: ✅ 2.201µs (SLO: <10.000µs 📉 -78.0%) vs baseline: ~same

Memory: ✅ 38.044MB (SLO: <39.000MB -2.5%) vs baseline: +4.9%

✅ upper_noaspect

Time: ✅ 0.371µs (SLO: <10.000µs 📉 -96.3%) vs baseline: +1.1%

Memory: ✅ 38.024MB (SLO: <39.000MB -2.5%) vs baseline: +5.0%

✅ iastaspectsospath - 24/24

✅ ospathbasename_aspect

Time: ✅ 4.210µs (SLO: <10.000µs 📉 -57.9%) vs baseline: +1.2%

Memory: ✅ 37.650MB (SLO: <39.000MB -3.5%) vs baseline: +4.7%

✅ ospathbasename_noaspect

Time: ✅ 1.080µs (SLO: <10.000µs 📉 -89.2%) vs baseline: +0.3%

Memory: ✅ 37.709MB (SLO: <39.000MB -3.3%) vs baseline: +5.0%

✅ ospathjoin_aspect

Time: ✅ 6.233µs (SLO: <10.000µs 📉 -37.7%) vs baseline: +2.6%

Memory: ✅ 37.611MB (SLO: <39.000MB -3.6%) vs baseline: +4.7%

✅ ospathjoin_noaspect

Time: ✅ 2.293µs (SLO: <10.000µs 📉 -77.1%) vs baseline: -0.1%

Memory: ✅ 37.670MB (SLO: <39.000MB -3.4%) vs baseline: +5.0%

✅ ospathnormcase_aspect

Time: ✅ 3.458µs (SLO: <10.000µs 📉 -65.4%) vs baseline: +0.3%

Memory: ✅ 37.670MB (SLO: <39.000MB -3.4%) vs baseline: +4.7%

✅ ospathnormcase_noaspect

Time: ✅ 0.564µs (SLO: <10.000µs 📉 -94.4%) vs baseline: -0.7%

Memory: ✅ 37.631MB (SLO: <39.000MB -3.5%) vs baseline: +4.8%

✅ ospathsplit_aspect

Time: ✅ 4.909µs (SLO: <10.000µs 📉 -50.9%) vs baseline: +2.6%

Memory: ✅ 37.572MB (SLO: <39.000MB -3.7%) vs baseline: +4.5%

✅ ospathsplit_noaspect

Time: ✅ 1.596µs (SLO: <10.000µs 📉 -84.0%) vs baseline: ~same

Memory: ✅ 37.690MB (SLO: <39.000MB -3.4%) vs baseline: +5.1%

✅ ospathsplitdrive_aspect

Time: ✅ 3.645µs (SLO: <10.000µs 📉 -63.5%) vs baseline: -0.4%

Memory: ✅ 37.552MB (SLO: <39.000MB -3.7%) vs baseline: +4.6%

✅ ospathsplitdrive_noaspect

Time: ✅ 0.693µs (SLO: <10.000µs 📉 -93.1%) vs baseline: -0.8%

Memory: ✅ 37.670MB (SLO: <39.000MB -3.4%) vs baseline: +4.9%

✅ ospathsplitext_aspect

Time: ✅ 4.548µs (SLO: <10.000µs 📉 -54.5%) vs baseline: +0.1%

Memory: ✅ 37.670MB (SLO: <39.000MB -3.4%) vs baseline: +4.9%

✅ ospathsplitext_noaspect

Time: ✅ 1.378µs (SLO: <10.000µs 📉 -86.2%) vs baseline: ~same

Memory: ✅ 37.709MB (SLO: <39.000MB -3.3%) vs baseline: +4.9%

✅ iastaspectssplit - 12/12

✅ rsplit_aspect

Time: ✅ 1.469µs (SLO: <10.000µs 📉 -85.3%) vs baseline: +1.7%

Memory: ✅ 37.670MB (SLO: <39.000MB -3.4%) vs baseline: +5.0%

✅ rsplit_noaspect

Time: ✅ 0.585µs (SLO: <10.000µs 📉 -94.1%) vs baseline: -0.2%

Memory: ✅ 37.611MB (SLO: <39.000MB -3.6%) vs baseline: +4.6%

✅ split_aspect

Time: ✅ 1.438µs (SLO: <10.000µs 📉 -85.6%) vs baseline: +2.4%

Memory: ✅ 37.670MB (SLO: <39.000MB -3.4%) vs baseline: +4.8%

✅ split_noaspect

Time: ✅ 0.571µs (SLO: <10.000µs 📉 -94.3%) vs baseline: +0.2%

Memory: ✅ 37.611MB (SLO: <39.000MB -3.6%) vs baseline: +4.7%

✅ splitlines_aspect

Time: ✅ 1.375µs (SLO: <10.000µs 📉 -86.3%) vs baseline: +1.4%

Memory: ✅ 37.690MB (SLO: <39.000MB -3.4%) vs baseline: +5.1%

✅ splitlines_noaspect

Time: ✅ 0.592µs (SLO: <10.000µs 📉 -94.1%) vs baseline: +0.4%

Memory: ✅ 37.631MB (SLO: <39.000MB -3.5%) vs baseline: +4.9%

✅ iastpropagation - 2/2

✅ no-propagation

Time: ✅ 48.556µs (SLO: <60.000µs 📉 -19.1%) vs baseline: +0.1%

Memory: ✅ 37.709MB (SLO: <39.000MB -3.3%) vs baseline: +4.8%

✅ otelsdkspan - 24/24

✅ add-event

Time: ✅ 40.565ms (SLO: <42.000ms -3.4%) vs baseline: +0.6%

Memory: ✅ 34.426MB (SLO: <39.000MB 📉 -11.7%) vs baseline: +4.6%

✅ add-link

Time: ✅ 36.368ms (SLO: <38.550ms -5.7%) vs baseline: ~same

Memory: ✅ 34.505MB (SLO: <39.000MB 📉 -11.5%) vs baseline: +5.0%

✅ add-metrics

Time: ✅ 219.622ms (SLO: <232.000ms -5.3%) vs baseline: -0.2%

Memory: ✅ 34.465MB (SLO: <39.000MB 📉 -11.6%) vs baseline: +4.7%

✅ add-tags

Time: ✅ 213.796ms (SLO: <221.600ms -3.5%) vs baseline: +0.5%

Memory: ✅ 34.485MB (SLO: <39.000MB 📉 -11.6%) vs baseline: +4.9%

✅ get-context

Time: ✅ 29.207ms (SLO: <31.300ms -6.7%) vs baseline: +0.2%

Memory: ✅ 34.465MB (SLO: <39.000MB 📉 -11.6%) vs baseline: +4.8%

✅ is-recording

Time: ✅ 29.304ms (SLO: <31.000ms -5.5%) vs baseline: +0.9%

Memory: ✅ 34.524MB (SLO: <39.000MB 📉 -11.5%) vs baseline: +5.0%

✅ record-exception

Time: ✅ 63.453ms (SLO: <65.850ms -3.6%) vs baseline: +0.5%

Memory: ✅ 34.465MB (SLO: <39.000MB 📉 -11.6%) vs baseline: +4.9%

✅ set-status

Time: ✅ 32.035ms (SLO: <34.150ms -6.2%) vs baseline: +0.7%

Memory: ✅ 34.485MB (SLO: <39.000MB 📉 -11.6%) vs baseline: +4.7%

✅ start

Time: ✅ 28.887ms (SLO: <30.150ms -4.2%) vs baseline: +0.6%

Memory: ✅ 34.524MB (SLO: <39.000MB 📉 -11.5%) vs baseline: +4.8%

✅ start-finish

Time: ✅ 33.816ms (SLO: <35.350ms -4.3%) vs baseline: -0.7%

Memory: ✅ 34.465MB (SLO: <39.000MB 📉 -11.6%) vs baseline: +4.6%

✅ start-finish-telemetry

Time: ✅ 33.863ms (SLO: <35.450ms -4.5%) vs baseline: -0.8%

Memory: ✅ 34.505MB (SLO: <39.000MB 📉 -11.5%) vs baseline: +4.8%

✅ update-name

Time: ✅ 31.063ms (SLO: <33.400ms -7.0%) vs baseline: +0.2%

Memory: ✅ 34.544MB (SLO: <39.000MB 📉 -11.4%) vs baseline: +5.1%

✅ otelspan - 22/22

✅ add-event

Time: ✅ 40.196ms (SLO: <47.150ms 📉 -14.7%) vs baseline: -0.1%

Memory: ✅ 43.713MB (SLO: <47.000MB -7.0%) vs baseline: +5.1%

✅ add-metrics

Time: ✅ 317.986ms (SLO: <344.800ms -7.8%) vs baseline: -0.2%

Memory: ✅ 652.329MB (SLO: <675.000MB -3.4%) vs baseline: +4.8%

✅ add-tags

Time: ✅ 288.853ms (SLO: <314.000ms -8.0%) vs baseline: -0.2%

Memory: ✅ 654.168MB (SLO: <675.000MB -3.1%) vs baseline: +4.9%

✅ get-context

Time: ✅ 80.484ms (SLO: <92.350ms 📉 -12.8%) vs baseline: +0.3%

Memory: ✅ 39.541MB (SLO: <46.500MB 📉 -15.0%) vs baseline: +4.8%

✅ is-recording

Time: ✅ 38.057ms (SLO: <44.500ms 📉 -14.5%) vs baseline: +0.3%

Memory: ✅ 43.087MB (SLO: <47.500MB -9.3%) vs baseline: +5.0%

✅ record-exception

Time: ✅ 58.031ms (SLO: <67.650ms 📉 -14.2%) vs baseline: -0.4%

Memory: ✅ 39.840MB (SLO: <47.000MB 📉 -15.2%) vs baseline: +4.9%

✅ set-status

Time: ✅ 43.836ms (SLO: <50.400ms 📉 -13.0%) vs baseline: -0.1%

Memory: ✅ 43.082MB (SLO: <47.000MB -8.3%) vs baseline: +4.8%

✅ start

Time: ✅ 37.417ms (SLO: <43.450ms 📉 -13.9%) vs baseline: +0.5%

Memory: ✅ 43.087MB (SLO: <47.000MB -8.3%) vs baseline: +4.9%

✅ start-finish

Time: ✅ 81.612ms (SLO: <88.000ms -7.3%) vs baseline: ~same

Memory: ✅ 34.603MB (SLO: <46.500MB 📉 -25.6%) vs baseline: +5.0%

✅ start-finish-telemetry

Time: ✅ 83.117ms (SLO: <89.000ms -6.6%) vs baseline: +0.5%

Memory: ✅ 34.583MB (SLO: <46.500MB 📉 -25.6%) vs baseline: +4.9%

✅ update-name

Time: ✅ 38.867ms (SLO: <45.150ms 📉 -13.9%) vs baseline: ~same

Memory: ✅ 43.475MB (SLO: <47.000MB -7.5%) vs baseline: +4.8%

✅ packagespackageforrootmodulemapping - 4/4

✅ cache_off

Time: ✅ 343.099ms (SLO: <354.300ms -3.2%) vs baseline: -0.5%

Memory: ✅ 38.051MB (SLO: <40.000MB -4.9%) vs baseline: +5.6%

✅ cache_on

Time: ✅ 0.388µs (SLO: <10.000µs 📉 -96.1%) vs baseline: +1.9%

Memory: ✅ 36.745MB (SLO: <39.000MB -5.8%) vs baseline: +4.8%

✅ packagesupdateimporteddependencies - 24/24

✅ import_many

Time: ✅ 155.522µs (SLO: <170.000µs -8.5%) vs baseline: +0.3%

Memory: ✅ 36.775MB (SLO: <38.500MB -4.5%) vs baseline: +3.3%

✅ import_many_cached

Time: ✅ 121.796µs (SLO: <130.000µs -6.3%) vs baseline: ~same

Memory: ✅ 37.157MB (SLO: <38.500MB -3.5%) vs baseline: +4.4%

✅ import_many_stdlib

Time: ✅ 1.627ms (SLO: <1.750ms -7.0%) vs baseline: +0.5%

Memory: ✅ 36.778MB (SLO: <38.500MB -4.5%) vs baseline: +4.6%

✅ import_many_stdlib_cached

Time: ✅ 0.977ms (SLO: <1.100ms 📉 -11.2%) vs baseline: -0.5%

Memory: ✅ 37.272MB (SLO: <38.500MB -3.2%) vs baseline: +5.1%

✅ import_many_unknown

Time: ✅ 837.979µs (SLO: <890.000µs -5.8%) vs baseline: +0.6%

Memory: ✅ 36.869MB (SLO: <38.500MB -4.2%) vs baseline: +3.7%

✅ import_many_unknown_cached

Time: ✅ 791.788µs (SLO: <870.000µs -9.0%) vs baseline: +0.4%

Memory: ✅ 36.903MB (SLO: <38.500MB -4.1%) vs baseline: +3.9%

✅ import_one

Time: ✅ 19.881µs (SLO: <30.000µs 📉 -33.7%) vs baseline: +0.7%

Memory: ✅ 37.130MB (SLO: <39.000MB -4.8%) vs baseline: +4.9%

✅ import_one_cache

Time: ✅ 6.308µs (SLO: <10.000µs 📉 -36.9%) vs baseline: +0.2%

Memory: ✅ 37.182MB (SLO: <38.500MB -3.4%) vs baseline: +4.8%

✅ import_one_stdlib

Time: ✅ 18.827µs (SLO: <20.000µs -5.9%) vs baseline: +0.9%

Memory: ✅ 37.108MB (SLO: <38.500MB -3.6%) vs baseline: +4.6%

✅ import_one_stdlib_cache

Time: ✅ 6.281µs (SLO: <10.000µs 📉 -37.2%) vs baseline: +0.5%

Memory: ✅ 37.060MB (SLO: <38.500MB -3.7%) vs baseline: +4.7%

✅ import_one_unknown

Time: ✅ 45.615µs (SLO: <50.000µs -8.8%) vs baseline: +0.6%

Memory: ✅ 37.084MB (SLO: <38.500MB -3.7%) vs baseline: +5.2%

✅ import_one_unknown_cache

Time: ✅ 6.253µs (SLO: <10.000µs 📉 -37.5%) vs baseline: -0.2%

Memory: ✅ 37.114MB (SLO: <38.500MB -3.6%) vs baseline: +5.7%

✅ ratelimiter - 12/12

✅ defaults

Time: ✅ 2.344µs (SLO: <10.000µs 📉 -76.6%) vs baseline: -0.2%

Memory: ✅ 31.615MB (SLO: <34.000MB -7.0%) vs baseline: +4.5%

✅ high_rate_limit

Time: ✅ 2.412µs (SLO: <10.000µs 📉 -75.9%) vs baseline: -0.4%

Memory: ✅ 31.713MB (SLO: <34.000MB -6.7%) vs baseline: +5.2%

✅ long_window

Time: ✅ 2.341µs (SLO: <10.000µs 📉 -76.6%) vs baseline: -0.5%

Memory: ✅ 31.654MB (SLO: <34.000MB -6.9%) vs baseline: +4.7%

✅ low_rate_limit

Time: ✅ 2.355µs (SLO: <10.000µs 📉 -76.4%) vs baseline: -1.0%

Memory: ✅ 31.654MB (SLO: <34.000MB -6.9%) vs baseline: +4.8%

✅ no_rate_limit

Time: ✅ 0.831µs (SLO: <10.000µs 📉 -91.7%) vs baseline: ~same

Memory: ✅ 31.674MB (SLO: <34.000MB -6.8%) vs baseline: +4.9%

✅ short_window

Time: ✅ 2.490µs (SLO: <10.000µs 📉 -75.1%) vs baseline: ~same

Memory: ✅ 31.654MB (SLO: <34.000MB -6.9%) vs baseline: +4.7%

✅ recursivecomputation - 8/8

✅ deep

Time: ✅ 309.263ms (SLO: <320.950ms -3.6%) vs baseline: ~same

Memory: ✅ 32.853MB (SLO: <34.500MB -4.8%) vs baseline: +4.9%

✅ deep-profiled

Time: ✅ 327.463ms (SLO: <359.150ms -8.8%) vs baseline: +0.2%

Memory: ✅ 37.629MB (SLO: <39.000MB -3.5%) vs baseline: +5.8%

✅ medium

Time: ✅ 7.011ms (SLO: <7.400ms -5.3%) vs baseline: ~same

Memory: ✅ 32.047MB (SLO: <34.000MB -5.7%) vs baseline: +5.0%

✅ shallow

Time: ✅ 0.942ms (SLO: <1.050ms 📉 -10.3%) vs baseline: +0.2%

Memory: ✅ 32.047MB (SLO: <34.000MB -5.7%) vs baseline: +4.9%

✅ samplingrules - 8/8

✅ average_match

Time: ✅ 137.753µs (SLO: <290.000µs 📉 -52.5%) vs baseline: -0.1%

Memory: ✅ 31.772MB (SLO: <34.000MB -6.6%) vs baseline: +4.0%

✅ high_match

Time: ✅ 172.422µs (SLO: <480.000µs 📉 -64.1%) vs baseline: -0.4%

Memory: ✅ 31.693MB (SLO: <34.000MB -6.8%) vs baseline: +4.8%

✅ low_match

Time: ✅ 98.687µs (SLO: <120.000µs 📉 -17.8%) vs baseline: -0.9%

Memory: ✅ 600.706MB (SLO: <700.000MB 📉 -14.2%) vs baseline: +4.9%

✅ very_low_match

Time: ✅ 2.656ms (SLO: <8.500ms 📉 -68.7%) vs baseline: -0.6%

Memory: ✅ 68.109MB (SLO: <75.000MB -9.2%) vs baseline: +4.9%

✅ sethttpmeta - 32/32

✅ all-disabled

Time: ✅ 10.731µs (SLO: <20.000µs 📉 -46.3%) vs baseline: +2.4%

Memory: ✅ 32.598MB (SLO: <34.000MB -4.1%) vs baseline: +4.9%

✅ all-enabled

Time: ✅ 41.248µs (SLO: <50.000µs 📉 -17.5%) vs baseline: +3.3%

Memory: ✅ 32.617MB (SLO: <34.000MB -4.1%) vs baseline: +4.9%

✅ collectipvariant_exists

Time: ✅ 41.053µs (SLO: <50.000µs 📉 -17.9%) vs baseline: +0.8%

Memory: ✅ 32.539MB (SLO: <34.000MB -4.3%) vs baseline: +4.8%

✅ no-collectipvariant

Time: ✅ 40.321µs (SLO: <50.000µs 📉 -19.4%) vs baseline: +0.9%

Memory: ✅ 32.617MB (SLO: <34.000MB -4.1%) vs baseline: +4.9%

✅ no-useragentvariant

Time: ✅ 39.104µs (SLO: <50.000µs 📉 -21.8%) vs baseline: +1.0%

Memory: ✅ 32.558MB (SLO: <34.000MB -4.2%) vs baseline: +4.8%

✅ obfuscation-no-query

Time: ✅ 40.663µs (SLO: <50.000µs 📉 -18.7%) vs baseline: ~same

Memory: ✅ 32.598MB (SLO: <34.000MB -4.1%) vs baseline: +4.9%

✅ obfuscation-regular-case-explicit-query

Time: ✅ 77.345µs (SLO: <90.000µs 📉 -14.1%) vs baseline: +2.1%

Memory: ✅ 32.676MB (SLO: <34.000MB -3.9%) vs baseline: +4.0%

✅ obfuscation-regular-case-implicit-query

Time: ✅ 76.726µs (SLO: <90.000µs 📉 -14.7%) vs baseline: +0.3%

Memory: ✅ 32.991MB (SLO: <34.000MB -3.0%) vs baseline: +5.2%

✅ obfuscation-send-querystring-disabled

Time: ✅ 154.394µs (SLO: <170.000µs -9.2%) vs baseline: +0.1%

Memory: ✅ 32.893MB (SLO: <34.500MB -4.7%) vs baseline: +4.5%

✅ obfuscation-worst-case-explicit-query

Time: ✅ 150.055µs (SLO: <160.000µs -6.2%) vs baseline: +1.1%

Memory: ✅ 33.030MB (SLO: <34.500MB -4.3%) vs baseline: +5.0%

✅ obfuscation-worst-case-implicit-query

Time: ✅ 154.254µs (SLO: <170.000µs -9.3%) vs baseline: -0.4%

Memory: ✅ 32.991MB (SLO: <34.500MB -4.4%) vs baseline: +4.9%

✅ useragentvariant_exists_1

Time: ✅ 39.564µs (SLO: <50.000µs 📉 -20.9%) vs baseline: +0.5%

Memory: ✅ 32.598MB (SLO: <34.000MB -4.1%) vs baseline: +4.9%

✅ useragentvariant_exists_2

Time: ✅ 40.706µs (SLO: <50.000µs 📉 -18.6%) vs baseline: ~same

Memory: ✅ 32.598MB (SLO: <34.000MB -4.1%) vs baseline: +4.7%

✅ useragentvariant_exists_3

Time: ✅ 40.144µs (SLO: <50.000µs 📉 -19.7%) vs baseline: +0.5%

Memory: ✅ 32.578MB (SLO: <34.000MB -4.2%) vs baseline: +4.7%

✅ useragentvariant_not_exists_1

Time: ✅ 39.755µs (SLO: <50.000µs 📉 -20.5%) vs baseline: +0.4%

Memory: ✅ 32.598MB (SLO: <34.000MB -4.1%) vs baseline: +4.9%

✅ useragentvariant_not_exists_2

Time: ✅ 39.595µs (SLO: <50.000µs 📉 -20.8%) vs baseline: +0.4%

Memory: ✅ 32.617MB (SLO: <34.000MB -4.1%) vs baseline: +4.9%

✅ span - 26/26

✅ add-event

Time: ✅ 20.224ms (SLO: <22.500ms 📉 -10.1%) vs baseline: +1.4%

Memory: ✅ 48.582MB (SLO: <53.000MB -8.3%) vs baseline: +4.9%

✅ add-metrics

Time: ✅ 90.025ms (SLO: <93.500ms -3.7%) vs baseline: -0.2%

Memory: ✅ 735.191MB (SLO: <961.000MB 📉 -23.5%) vs baseline: +4.8%

✅ add-tags

Time: ✅ 147.880ms (SLO: <155.000ms -4.6%) vs baseline: +0.2%

Memory: ✅ 735.947MB (SLO: <962.500MB 📉 -23.5%) vs baseline: +4.8%

✅ get-context

Time: ✅ 18.552ms (SLO: <20.500ms -9.5%) vs baseline: +1.4%

Memory: ✅ 47.378MB (SLO: <53.000MB 📉 -10.6%) vs baseline: +4.8%

✅ is-recording

Time: ✅ 18.690ms (SLO: <20.500ms -8.8%) vs baseline: ~same

Memory: ✅ 47.363MB (SLO: <53.000MB 📉 -10.6%) vs baseline: +4.8%

✅ record-exception

Time: ✅ 37.981ms (SLO: <40.000ms -5.0%) vs baseline: +1.1%

Memory: ✅ 41.760MB (SLO: <53.000MB 📉 -21.2%) vs baseline: +5.0%

✅ set-status

Time: ✅ 20.254ms (SLO: <22.000ms -7.9%) vs baseline: -0.4%

Memory: ✅ 47.348MB (SLO: <53.000MB 📉 -10.7%) vs baseline: +4.9%

✅ start

Time: ✅ 18.356ms (SLO: <20.500ms 📉 -10.5%) vs baseline: +0.6%

Memory: ✅ 47.377MB (SLO: <53.000MB 📉 -10.6%) vs baseline: +4.8%

✅ start-finish

Time: ✅ 50.816ms (SLO: <52.500ms -3.2%) vs baseline: +0.8%

Memory: ✅ 32.008MB (SLO: <34.000MB -5.9%) vs baseline: +4.7%

✅ start-finish-telemetry

Time: ✅ 51.935ms (SLO: <54.500ms -4.7%) vs baseline: ~same

Memory: ✅ 32.086MB (SLO: <34.000MB -5.6%) vs baseline: +5.1%

✅ start-finish-traceid128

Time: ✅ 53.753ms (SLO: <57.000ms -5.7%) vs baseline: +0.7%

Memory: ✅ 32.126MB (SLO: <34.000MB -5.5%) vs baseline: +5.2%

✅ start-traceid128

Time: ✅ 18.584ms (SLO: <22.500ms 📉 -17.4%) vs baseline: ~same

Memory: ✅ 47.412MB (SLO: <53.000MB 📉 -10.5%) vs baseline: +5.0%

✅ update-name

Time: ✅ 18.697ms (SLO: <22.000ms 📉 -15.0%) vs baseline: ~same

Memory: ✅ 47.978MB (SLO: <53.000MB -9.5%) vs baseline: +4.8%

✅ telemetryaddmetric - 30/30

✅ 1-count-metric-1-times

Time: ✅ 2.951µs (SLO: <20.000µs 📉 -85.2%) vs baseline: -0.6%

Memory: ✅ 32.067MB (SLO: <34.000MB -5.7%) vs baseline: +4.7%

✅ 1-count-metrics-100-times

Time: ✅ 201.643µs (SLO: <220.000µs -8.3%) vs baseline: -0.2%

Memory: ✅ 32.086MB (SLO: <34.000MB -5.6%) vs baseline: +5.1%

✅ 1-distribution-metric-1-times

Time: ✅ 3.351µs (SLO: <20.000µs 📉 -83.2%) vs baseline: +2.2%

Memory: ✅ 32.145MB (SLO: <34.000MB -5.5%) vs baseline: +5.1%

✅ 1-distribution-metrics-100-times

Time: ✅ 214.694µs (SLO: <220.000µs -2.4%) vs baseline: +0.4%

Memory: ✅ 32.086MB (SLO: <34.000MB -5.6%) vs baseline: +4.9%

✅ 1-gauge-metric-1-times

Time: ✅ 2.168µs (SLO: <20.000µs 📉 -89.2%) vs baseline: -1.1%

Memory: ✅ 32.047MB (SLO: <34.000MB -5.7%) vs baseline: +4.7%

✅ 1-gauge-metrics-100-times

Time: ✅ 137.265µs (SLO: <150.000µs -8.5%) vs baseline: -0.3%

Memory: ✅ 32.067MB (SLO: <34.000MB -5.7%) vs baseline: +4.7%

✅ 1-rate-metric-1-times

Time: ✅ 3.085µs (SLO: <20.000µs 📉 -84.6%) vs baseline: -1.2%

Memory: ✅ 32.047MB (SLO: <34.000MB -5.7%) vs baseline: +4.8%

✅ 1-rate-metrics-100-times

Time: ✅ 215.775µs (SLO: <250.000µs 📉 -13.7%) vs baseline: -0.9%

Memory: ✅ 32.027MB (SLO: <34.000MB -5.8%) vs baseline: +4.8%

✅ 100-count-metrics-100-times

Time: ✅ 20.351ms (SLO: <22.000ms -7.5%) vs baseline: +1.2%

Memory: ✅ 32.027MB (SLO: <34.000MB -5.8%) vs baseline: +4.8%

✅ 100-distribution-metrics-100-times

Time: ✅ 2.245ms (SLO: <2.300ms -2.4%) vs baseline: +0.9%

Memory: ✅ 32.086MB (SLO: <34.000MB -5.6%) vs baseline: +4.9%

✅ 100-gauge-metrics-100-times

Time: ✅ 1.418ms (SLO: <1.550ms -8.5%) vs baseline: +1.2%

Memory: ✅ 32.086MB (SLO: <34.000MB -5.6%) vs baseline: +4.9%

✅ 100-rate-metrics-100-times

Time: ✅ 2.237ms (SLO: <2.550ms 📉 -12.3%) vs baseline: +2.3%

Memory: ✅ 32.106MB (SLO: <34.000MB -5.6%) vs baseline: +4.7%

✅ flush-1-metric

Time: ✅ 4.679µs (SLO: <20.000µs 📉 -76.6%) vs baseline: +0.3%

Memory: ✅ 32.067MB (SLO: <34.000MB -5.7%) vs baseline: +4.8%

✅ flush-100-metrics

Time: ✅ 175.274µs (SLO: <250.000µs 📉 -29.9%) vs baseline: ~same

Memory: ✅ 32.086MB (SLO: <34.000MB -5.6%) vs baseline: +5.1%

✅ flush-1000-metrics

Time: ✅ 2.102ms (SLO: <2.500ms 📉 -15.9%) vs baseline: -1.7%

Memory: ✅ 32.932MB (SLO: <34.500MB -4.5%) vs baseline: +4.9%

✅ tracer - 6/6

✅ large

Time: ✅ 29.352ms (SLO: <32.950ms 📉 -10.9%) vs baseline: +1.1%

Memory: ✅ 32.716MB (SLO: <34.500MB -5.2%) vs baseline: +4.6%

✅ medium

Time: ✅ 2.887ms (SLO: <3.200ms -9.8%) vs baseline: ~same

Memory: ✅ 31.615MB (SLO: <34.000MB -7.0%) vs baseline: +4.9%

✅ small

Time: ✅ 329.167µs (SLO: <370.000µs 📉 -11.0%) vs baseline: +1.0%

Memory: ✅ 31.634MB (SLO: <34.000MB -7.0%) vs baseline: +4.9%

ℹ️ Scenarios Missing SLO Configuration (9 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

@KowalskiThomas KowalskiThomas mentioned this pull request Oct 27, 2025
Open
@KowalskiThomas KowalskiThomas force-pushed the kowalski/profiling-use-echion-with-memcpy branch from d7a59f4 to d1af0c8 Compare October 30, 2025 09:58
@KowalskiThomas KowalskiThomas changed the title [experimental] profiling: use echion with memcpy perf(profiling): use echion with memcpy Oct 30, 2025
@KowalskiThomas KowalskiThomas force-pushed the kowalski/profiling-use-echion-with-memcpy branch from d1af0c8 to c1433c1 Compare October 30, 2025 13:15
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2 participants

@KowalskiThomas