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Merged
merged 3 commits into from
Nov 20, 2025
Merged

feat(profiling): make Profile upload lock-free #15302

merged 3 commits into from
Nov 20, 2025

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@KowalskiThomas
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@KowalskiThomas KowalskiThomas commented Nov 17, 2025 •
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Description

https://datadoghq.atlassian.net/browse/PROF-13044

This PR reduces locking around the libdatadog Profile object to make uploading non-blocking for sampling. Previously, the Scheduler thread (which uploads every once in a while) would take the Lock on the Profile object, preventing any new Samples from being pushed to it until the upload finishes. Although we don't have any numbers on that, it is possible that this would trigger adaptive sampling or make us lose some data.

The new implementation doesn't make uploading completely lock-free, but already improves it by eliminating the need for locking during the upload. We still need to lock the Profile object when we encode it. It may be possible to optimise this further by having two Profile objects (one we would be writing to, and one that would be being uploaded) but this requires more complicated lock handling to actually be safe. (Reason is, having two Profiles is still a problem if the previous encoding/uploading hasn't finished when the next needs to be encoded/uploaded.)

In the new implementation, the Profile Lock is acquired just before encoding is done, and released right after. Profiler Stats are also copied and reset while the Lock is held.

In order to make that work, I had to slightly adapt the interface of Uploader for it to work an EncodedProfile instead of a Profile, which allowed me to hoist the encoding outside of the Uploader (to the UploaderBuilder), and thus only hold the Profile Lock during UploaderBuilder::Build (as opposed to during the whole of Uploader::upload).
ProfilerStats are captured and reset by std::swap-ping them with an empty ProfilerStats object, eliminating the previous "singleton-like" ProfilerStats we had. (This works and is trivial because ProfilerStats is a C++ object; we cannot do the same for the Profile itself, as it is managed by the Rust library.)
Uploader's interface has also slightly changed – it is now constructed with the ProfilerStats and EncodedProfile directly (not taken as argument for upload).

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github-actions bot commented Nov 17, 2025 •
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CODEOWNERS have been resolved as:

ddtrace/internal/datadog/profiling/dd_wrapper/include/profile.hpp       @DataDog/profiling-python
ddtrace/internal/datadog/profiling/dd_wrapper/include/profiler_stats.hpp  @DataDog/profiling-python
ddtrace/internal/datadog/profiling/dd_wrapper/include/uploader.hpp      @DataDog/profiling-python
ddtrace/internal/datadog/profiling/dd_wrapper/src/ddup_interface.cpp    @DataDog/profiling-python
ddtrace/internal/datadog/profiling/dd_wrapper/src/profile.cpp           @DataDog/profiling-python
ddtrace/internal/datadog/profiling/dd_wrapper/src/profile_borrow.cpp    @DataDog/profiling-python
ddtrace/internal/datadog/profiling/dd_wrapper/src/profiler_stats.cpp    @DataDog/profiling-python
ddtrace/internal/datadog/profiling/dd_wrapper/src/uploader.cpp          @DataDog/profiling-python
ddtrace/internal/datadog/profiling/dd_wrapper/src/uploader_builder.cpp  @DataDog/profiling-python

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github-actions bot commented Nov 17, 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: 256 ± 5 ms.

The average import time from base is: 262 ± 5 ms.

The import time difference between this PR and base is: -5.6 ± 0.2 ms.

Import time breakdown

The following import paths have shrunk:

ddtrace.auto 6.626 ms (2.59%)
ddtrace.bootstrap.sitecustomize 3.955 ms (1.54%)
ddtrace.bootstrap.preload 3.955 ms (1.54%)
ddtrace.internal.settings.dynamic_instrumentation 0.679 ms (0.27%)
ddtrace.internal.remoteconfig.worker 0.667 ms (0.26%)
ddtrace.internal.remoteconfig.client 0.614 ms (0.24%)
ddtrace 2.670 ms (1.04%)
ddtrace._logger 0.678 ms (0.26%)
ddtrace.internal.telemetry 0.678 ms (0.26%)
ddtrace.internal.telemetry.writer 0.678 ms (0.26%)
ddtrace.internal.utils.version 0.678 ms (0.26%)
ddtrace.trace 0.634 ms (0.25%)
ddtrace.internal._unpatched 0.026 ms (0.01%)
json 0.026 ms (0.01%)
json.decoder 0.026 ms (0.01%)
re 0.026 ms (0.01%)
enum 0.026 ms (0.01%)
types 0.026 ms (0.01%)

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Performance SLOs

Comparing candidate kowalski/reduce-locking-on-profile-object (a201ec6) with baseline main (67a9db7)

❌ Test Failures (1 suite)
❌ telemetryaddmetric - 29/30

✅ 1-count-metric-1-times

Time: ✅ 3.279µs (SLO: <20.000µs 📉 -83.6%) vs baseline: 📈 +10.2%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.7%

✅ 1-count-metrics-100-times

Time: ✅ 200.919µs (SLO: <220.000µs -8.7%) vs baseline: ~same

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.8%

✅ 1-distribution-metric-1-times

Time: ✅ 3.628µs (SLO: <20.000µs 📉 -81.9%) vs baseline: +9.2%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.9%

❌ 1-distribution-metrics-100-times

Time: ❌ 221.239µs (SLO: <220.000µs +0.6%) vs baseline: +0.8%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.9%

✅ 1-gauge-metric-1-times

Time: ✅ 2.171µs (SLO: <20.000µs 📉 -89.1%) vs baseline: -1.2%

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.6%

✅ 1-gauge-metrics-100-times

Time: ✅ 137.239µs (SLO: <150.000µs -8.5%) vs baseline: +0.8%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.7%

✅ 1-rate-metric-1-times

Time: ✅ 3.098µs (SLO: <20.000µs 📉 -84.5%) vs baseline: -0.8%

Memory: ✅ 34.465MB (SLO: <35.500MB -2.9%) vs baseline: +4.8%

✅ 1-rate-metrics-100-times

Time: ✅ 214.579µs (SLO: <250.000µs 📉 -14.2%) vs baseline: -0.6%

Memory: ✅ 34.465MB (SLO: <35.500MB -2.9%) vs baseline: +4.4%

✅ 100-count-metrics-100-times

Time: ✅ 20.416ms (SLO: <22.000ms -7.2%) vs baseline: +1.1%

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.9%

✅ 100-distribution-metrics-100-times

Time: ✅ 2.262ms (SLO: <2.300ms 🟡 -1.6%) vs baseline: -0.8%

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.7%

✅ 100-gauge-metrics-100-times

Time: ✅ 1.414ms (SLO: <1.550ms -8.8%) vs baseline: +0.6%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +5.0%

✅ 100-rate-metrics-100-times

Time: ✅ 2.208ms (SLO: <2.550ms 📉 -13.4%) vs baseline: ~same

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +4.9%

✅ flush-1-metric

Time: ✅ 4.889µs (SLO: <20.000µs 📉 -75.6%) vs baseline: +6.3%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.8%

✅ flush-100-metrics

Time: ✅ 176.180µs (SLO: <250.000µs 📉 -29.5%) vs baseline: +0.5%

Memory: ✅ 34.564MB (SLO: <35.500MB -2.6%) vs baseline: +5.2%

✅ flush-1000-metrics

Time: ✅ 2.122ms (SLO: <2.500ms 📉 -15.1%) vs baseline: ~same

Memory: ✅ 35.370MB (SLO: <36.500MB -3.1%) vs baseline: +5.1%

🟡 Near SLO Breach (2 suites)
🟡 flasksimple - 18/18

✅ appsec-get

Time: ✅ 4.606ms (SLO: <4.750ms -3.0%) vs baseline: +0.4%

Memory: ✅ 63.903MB (SLO: <66.500MB -3.9%) vs baseline: +4.6%

✅ appsec-post

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

Memory: ✅ 64.399MB (SLO: <66.500MB -3.2%) vs baseline: +5.0%

✅ appsec-telemetry

Time: ✅ 4.593ms (SLO: <4.750ms -3.3%) vs baseline: -0.1%

Memory: ✅ 64.067MB (SLO: <66.500MB -3.7%) vs baseline: +5.0%

✅ debugger

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

Memory: ✅ 47.950MB (SLO: <49.500MB -3.1%) vs baseline: +4.9%

✅ iast-get

Time: ✅ 1.856ms (SLO: <2.000ms -7.2%) vs baseline: -0.3%

Memory: ✅ 44.507MB (SLO: <49.000MB -9.2%) vs baseline: +5.2%

✅ profiler

Time: ✅ 1.929ms (SLO: <2.100ms -8.1%) vs baseline: +0.1%

Memory: ✅ 48.378MB (SLO: <50.000MB -3.2%) vs baseline: +4.3%

✅ resource-renaming

Time: ✅ 3.382ms (SLO: <3.650ms -7.3%) vs baseline: +0.2%

Memory: ✅ 54.828MB (SLO: <56.000MB -2.1%) vs baseline: +5.9%

✅ tracer

Time: ✅ 3.373ms (SLO: <3.650ms -7.6%) vs baseline: +0.3%

Memory: ✅ 54.480MB (SLO: <56.500MB -3.6%) vs baseline: +5.3%

✅ tracer-native

Time: ✅ 3.372ms (SLO: <3.650ms -7.6%) vs baseline: +0.4%

Memory: ✅ 54.421MB (SLO: <60.000MB -9.3%) vs baseline: +5.0%

🟡 otelspan - 22/22

✅ add-event

Time: ✅ 39.332ms (SLO: <47.150ms 📉 -16.6%) vs baseline: +1.8%

Memory: ✅ 39.027MB (SLO: <47.000MB 📉 -17.0%) vs baseline: +5.2%

✅ add-metrics

Time: ✅ 256.691ms (SLO: <344.800ms 📉 -25.6%) vs baseline: ~same

Memory: ✅ 43.294MB (SLO: <47.500MB -8.9%) vs baseline: +4.9%

✅ add-tags

Time: ✅ 316.980ms (SLO: <321.000ms 🟡 -1.3%) vs baseline: +1.0%

Memory: ✅ 43.313MB (SLO: <47.500MB -8.8%) vs baseline: +4.9%

✅ get-context

Time: ✅ 78.786ms (SLO: <92.350ms 📉 -14.7%) vs baseline: -0.1%

Memory: ✅ 39.255MB (SLO: <46.500MB 📉 -15.6%) vs baseline: +4.9%

✅ is-recording

Time: ✅ 36.203ms (SLO: <44.500ms 📉 -18.6%) vs baseline: ~same

Memory: ✅ 38.713MB (SLO: <47.500MB 📉 -18.5%) vs baseline: +4.3%

✅ record-exception

Time: ✅ 56.961ms (SLO: <67.650ms 📉 -15.8%) vs baseline: -0.2%

Memory: ✅ 39.391MB (SLO: <47.000MB 📉 -16.2%) vs baseline: +4.8%

✅ set-status

Time: ✅ 42.467ms (SLO: <50.400ms 📉 -15.7%) vs baseline: +0.6%

Memory: ✅ 38.827MB (SLO: <47.000MB 📉 -17.4%) vs baseline: +4.8%

✅ start

Time: ✅ 35.500ms (SLO: <43.450ms 📉 -18.3%) vs baseline: +1.0%

Memory: ✅ 38.717MB (SLO: <47.000MB 📉 -17.6%) vs baseline: +4.6%

✅ start-finish

Time: ✅ 82.876ms (SLO: <88.000ms -5.8%) vs baseline: +1.4%

Memory: ✅ 36.648MB (SLO: <46.500MB 📉 -21.2%) vs baseline: +5.1%

✅ start-finish-telemetry

Time: ✅ 83.130ms (SLO: <89.000ms -6.6%) vs baseline: ~same

Memory: ✅ 36.530MB (SLO: <46.500MB 📉 -21.4%) vs baseline: +4.5%

✅ update-name

Time: ✅ 37.347ms (SLO: <45.150ms 📉 -17.3%) vs baseline: ~same

Memory: ✅ 38.910MB (SLO: <47.000MB 📉 -17.2%) 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: -0.2%

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.3%

✅ context_with_data_no_listeners

Time: ✅ 3.232µs (SLO: <10.000µs 📉 -67.7%) vs baseline: -1.9%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +5.1%

✅ get_item_exists

Time: ✅ 0.581µs (SLO: <10.000µs 📉 -94.2%) vs baseline: -0.4%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +5.0%

✅ get_item_missing

Time: ✅ 0.637µs (SLO: <10.000µs 📉 -93.6%) vs baseline: -0.7%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.7%

✅ set_item

Time: ✅ 23.962µs (SLO: <30.000µs 📉 -20.1%) vs baseline: -0.6%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.9%

✅ All Tests Passing (19 suites)
✅ djangosimple - 30/30

✅ appsec

Time: ✅ 19.341ms (SLO: <22.300ms 📉 -13.3%) vs baseline: +0.2%

Memory: ✅ 67.849MB (SLO: <70.500MB -3.8%) vs baseline: +4.9%

✅ exception-replay-enabled

Time: ✅ 1.335ms (SLO: <1.450ms -7.9%) vs baseline: +0.2%

Memory: ✅ 66.038MB (SLO: <67.500MB -2.2%) vs baseline: +4.9%

✅ iast

Time: ✅ 19.289ms (SLO: <22.250ms 📉 -13.3%) vs baseline: +0.1%

Memory: ✅ 67.771MB (SLO: <70.000MB -3.2%) vs baseline: +4.8%

✅ profiler

Time: ✅ 15.607ms (SLO: <16.550ms -5.7%) vs baseline: -0.3%

Memory: ✅ 55.918MB (SLO: <57.500MB -2.8%) vs baseline: +4.3%

✅ resource-renaming

Time: ✅ 19.336ms (SLO: <21.750ms 📉 -11.1%) vs baseline: -0.1%

Memory: ✅ 67.908MB (SLO: <70.500MB -3.7%) vs baseline: +5.0%

✅ span-code-origin

Time: ✅ 22.872ms (SLO: <28.200ms 📉 -18.9%) vs baseline: ~same

Memory: ✅ 69.259MB (SLO: <71.000MB -2.5%) vs baseline: +4.9%

✅ tracer

Time: ✅ 19.304ms (SLO: <21.750ms 📉 -11.2%) vs baseline: ~same

Memory: ✅ 67.849MB (SLO: <70.000MB -3.1%) vs baseline: +4.9%

✅ tracer-and-profiler

Time: ✅ 21.364ms (SLO: <23.500ms -9.1%) vs baseline: -0.4%

Memory: ✅ 68.990MB (SLO: <71.000MB -2.8%) vs baseline: +4.4%

✅ tracer-dont-create-db-spans

Time: ✅ 19.340ms (SLO: <21.500ms 📉 -10.0%) vs baseline: ~same

Memory: ✅ 67.712MB (SLO: <70.000MB -3.3%) vs baseline: +4.6%

✅ tracer-minimal

Time: ✅ 16.640ms (SLO: <17.500ms -4.9%) vs baseline: -0.3%

Memory: ✅ 67.692MB (SLO: <70.000MB -3.3%) vs baseline: +4.7%

✅ tracer-native

Time: ✅ 19.325ms (SLO: <21.750ms 📉 -11.1%) vs baseline: +0.2%

Memory: ✅ 67.830MB (SLO: <72.500MB -6.4%) vs baseline: +4.8%

✅ tracer-no-caches

Time: ✅ 17.283ms (SLO: <19.650ms 📉 -12.0%) vs baseline: +0.3%

Memory: ✅ 67.751MB (SLO: <70.000MB -3.2%) vs baseline: +4.7%

✅ tracer-no-databases

Time: ✅ 18.851ms (SLO: <20.100ms -6.2%) vs baseline: +0.8%

Memory: ✅ 67.810MB (SLO: <70.000MB -3.1%) vs baseline: +4.9%

✅ tracer-no-middleware

Time: ✅ 19.052ms (SLO: <21.500ms 📉 -11.4%) vs baseline: +0.7%

Memory: ✅ 67.830MB (SLO: <70.000MB -3.1%) vs baseline: +4.8%

✅ tracer-no-templates

Time: ✅ 19.173ms (SLO: <22.000ms 📉 -12.8%) vs baseline: +0.5%

Memory: ✅ 67.712MB (SLO: <70.500MB -4.0%) vs baseline: +4.8%

✅ errortrackingdjangosimple - 6/6

✅ errortracking-enabled-all

Time: ✅ 16.321ms (SLO: <19.850ms 📉 -17.8%) vs baseline: +0.2%

Memory: ✅ 67.728MB (SLO: <70.000MB -3.2%) vs baseline: +4.8%

✅ errortracking-enabled-user

Time: ✅ 16.346ms (SLO: <19.400ms 📉 -15.7%) vs baseline: ~same

Memory: ✅ 67.606MB (SLO: <70.000MB -3.4%) vs baseline: +4.6%

✅ tracer-enabled

Time: ✅ 16.373ms (SLO: <19.450ms 📉 -15.8%) vs baseline: ~same

Memory: ✅ 67.574MB (SLO: <70.000MB -3.5%) vs baseline: +4.8%

✅ errortrackingflasksqli - 6/6

✅ errortracking-enabled-all

Time: ✅ 2.072ms (SLO: <2.300ms -9.9%) vs baseline: +0.3%

Memory: ✅ 54.618MB (SLO: <56.500MB -3.3%) vs baseline: +5.0%

✅ errortracking-enabled-user

Time: ✅ 2.076ms (SLO: <2.250ms -7.7%) vs baseline: +0.4%

Memory: ✅ 54.637MB (SLO: <56.500MB -3.3%) vs baseline: +5.1%

✅ tracer-enabled

Time: ✅ 2.074ms (SLO: <2.300ms -9.8%) vs baseline: +0.3%

Memory: ✅ 54.500MB (SLO: <56.500MB -3.5%) vs baseline: +4.8%

✅ flasksqli - 6/6

✅ appsec-enabled

Time: ✅ 3.945ms (SLO: <4.200ms -6.1%) vs baseline: ~same

Memory: ✅ 64.409MB (SLO: <66.000MB -2.4%) vs baseline: +4.8%

✅ iast-enabled

Time: ✅ 2.433ms (SLO: <2.800ms 📉 -13.1%) vs baseline: -0.2%

Memory: ✅ 60.516MB (SLO: <62.500MB -3.2%) vs baseline: +4.8%

✅ tracer-enabled

Time: ✅ 2.052ms (SLO: <2.250ms -8.8%) vs baseline: -0.3%

Memory: ✅ 54.637MB (SLO: <56.500MB -3.3%) vs baseline: +5.1%

✅ httppropagationextract - 60/60

✅ all_styles_all_headers

Time: ✅ 81.023µs (SLO: <100.000µs 📉 -19.0%) vs baseline: +0.4%

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.7%

✅ b3_headers

Time: ✅ 14.131µs (SLO: <20.000µs 📉 -29.3%) vs baseline: -0.6%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.7%

✅ b3_single_headers

Time: ✅ 13.597µs (SLO: <20.000µs 📉 -32.0%) vs baseline: +1.9%

Memory: ✅ 34.682MB (SLO: <35.500MB -2.3%) vs baseline: +5.0%

✅ datadog_tracecontext_tracestate_not_propagated_on_trace_id_no_match

Time: ✅ 66.490µs (SLO: <80.000µs 📉 -16.9%) vs baseline: +4.0%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.4%

✅ datadog_tracecontext_tracestate_propagated_on_trace_id_match

Time: ✅ 68.824µs (SLO: <80.000µs 📉 -14.0%) vs baseline: +3.8%

Memory: ✅ 34.603MB (SLO: <35.500MB -2.5%) vs baseline: +4.7%

✅ empty_headers

Time: ✅ 1.592µs (SLO: <10.000µs 📉 -84.1%) vs baseline: -0.1%

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +5.0%

✅ full_t_id_datadog_headers

Time: ✅ 22.539µs (SLO: <30.000µs 📉 -24.9%) vs baseline: ~same

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.8%

✅ invalid_priority_header

Time: ✅ 6.572µs (SLO: <10.000µs 📉 -34.3%) vs baseline: +1.1%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.7%

✅ invalid_span_id_header

Time: ✅ 6.580µs (SLO: <10.000µs 📉 -34.2%) vs baseline: +1.5%

Memory: ✅ 34.603MB (SLO: <35.500MB -2.5%) vs baseline: +5.0%

✅ invalid_tags_header

Time: ✅ 6.501µs (SLO: <10.000µs 📉 -35.0%) vs baseline: +0.2%

Memory: ✅ 34.564MB (SLO: <35.500MB -2.6%) vs baseline: +5.1%

✅ invalid_trace_id_header

Time: ✅ 6.550µs (SLO: <10.000µs 📉 -34.5%) vs baseline: +0.8%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.9%

✅ large_header_no_matches

Time: ✅ 27.738µs (SLO: <30.000µs -7.5%) vs baseline: +0.6%

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +4.7%

✅ large_valid_headers_all

Time: ✅ 28.818µs (SLO: <40.000µs 📉 -28.0%) vs baseline: +0.4%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.8%

✅ medium_header_no_matches

Time: ✅ 9.868µs (SLO: <20.000µs 📉 -50.7%) vs baseline: +0.3%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.3%

✅ medium_valid_headers_all

Time: ✅ 11.451µs (SLO: <20.000µs 📉 -42.7%) vs baseline: +1.7%

Memory: ✅ 34.642MB (SLO: <35.500MB -2.4%) vs baseline: +5.4%

✅ none_propagation_style

Time: ✅ 1.696µs (SLO: <10.000µs 📉 -83.0%) vs baseline: -0.8%

Memory: ✅ 34.623MB (SLO: <35.500MB -2.5%) vs baseline: +5.1%

✅ tracecontext_headers

Time: ✅ 36.410µs (SLO: <40.000µs -9.0%) vs baseline: +4.5%

Memory: ✅ 34.642MB (SLO: <35.500MB -2.4%) vs baseline: +5.2%

✅ valid_headers_all

Time: ✅ 6.532µs (SLO: <10.000µs 📉 -34.7%) vs baseline: +0.9%

Memory: ✅ 34.603MB (SLO: <35.500MB -2.5%) vs baseline: +5.0%

✅ valid_headers_basic

Time: ✅ 6.089µs (SLO: <10.000µs 📉 -39.1%) vs baseline: ~same

Memory: ✅ 34.682MB (SLO: <35.500MB -2.3%) vs baseline: +5.6%

✅ wsgi_empty_headers

Time: ✅ 1.592µs (SLO: <10.000µs 📉 -84.1%) vs baseline: +0.4%

Memory: ✅ 34.564MB (SLO: <35.500MB -2.6%) vs baseline: +4.7%

✅ wsgi_invalid_priority_header

Time: ✅ 6.598µs (SLO: <10.000µs 📉 -34.0%) vs baseline: +0.8%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.6%

✅ wsgi_invalid_span_id_header

Time: ✅ 1.586µs (SLO: <10.000µs 📉 -84.1%) vs baseline: -1.1%

Memory: ✅ 34.603MB (SLO: <35.500MB -2.5%) vs baseline: +5.0%

✅ wsgi_invalid_tags_header

Time: ✅ 6.603µs (SLO: <10.000µs 📉 -34.0%) vs baseline: +0.5%

Memory: ✅ 34.564MB (SLO: <35.500MB -2.6%) vs baseline: +5.0%

✅ wsgi_invalid_trace_id_header

Time: ✅ 6.699µs (SLO: <10.000µs 📉 -33.0%) vs baseline: +2.0%

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +4.8%

✅ wsgi_large_header_no_matches

Time: ✅ 28.836µs (SLO: <40.000µs 📉 -27.9%) vs baseline: +0.7%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.6%

✅ wsgi_large_valid_headers_all

Time: ✅ 30.157µs (SLO: <40.000µs 📉 -24.6%) vs baseline: +1.3%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.6%

✅ wsgi_medium_header_no_matches

Time: ✅ 10.132µs (SLO: <20.000µs 📉 -49.3%) vs baseline: ~same

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.9%

✅ wsgi_medium_valid_headers_all

Time: ✅ 11.593µs (SLO: <20.000µs 📉 -42.0%) vs baseline: ~same

Memory: ✅ 34.465MB (SLO: <35.500MB -2.9%) vs baseline: +4.5%

✅ wsgi_valid_headers_all

Time: ✅ 6.603µs (SLO: <10.000µs 📉 -34.0%) vs baseline: +0.7%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +5.0%

✅ wsgi_valid_headers_basic

Time: ✅ 6.164µs (SLO: <10.000µs 📉 -38.4%) vs baseline: +0.9%

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +5.0%

✅ httppropagationinject - 16/16

✅ ids_only

Time: ✅ 21.147µs (SLO: <30.000µs 📉 -29.5%) vs baseline: +1.6%

Memory: ✅ 34.623MB (SLO: <35.500MB -2.5%) vs baseline: +5.1%

✅ with_all

Time: ✅ 27.609µs (SLO: <40.000µs 📉 -31.0%) vs baseline: -0.2%

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +5.3%

✅ with_dd_origin

Time: ✅ 24.827µs (SLO: <30.000µs 📉 -17.2%) vs baseline: +0.6%

Memory: ✅ 34.564MB (SLO: <35.500MB -2.6%) vs baseline: +5.0%

✅ with_priority_and_origin

Time: ✅ 24.343µs (SLO: <40.000µs 📉 -39.1%) vs baseline: +1.6%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.9%

✅ with_sampling_priority

Time: ✅ 21.422µs (SLO: <30.000µs 📉 -28.6%) vs baseline: +2.7%

Memory: ✅ 34.564MB (SLO: <35.500MB -2.6%) vs baseline: +4.8%

✅ with_tags

Time: ✅ 26.002µs (SLO: <40.000µs 📉 -35.0%) vs baseline: -0.1%

Memory: ✅ 34.603MB (SLO: <35.500MB -2.5%) vs baseline: +5.0%

✅ with_tags_invalid

Time: ✅ 27.238µs (SLO: <40.000µs 📉 -31.9%) vs baseline: -0.5%

Memory: ✅ 34.623MB (SLO: <35.500MB -2.5%) vs baseline: +5.0%

✅ with_tags_max_size

Time: ✅ 26.296µs (SLO: <40.000µs 📉 -34.3%) vs baseline: +0.1%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.7%

✅ iast_aspects - 40/40

✅ re_expand_aspect

Time: ✅ 33.536µs (SLO: <40.000µs 📉 -16.2%) vs baseline: +6.0%

Memory: ✅ 39.892MB (SLO: <41.000MB -2.7%) vs baseline: +4.8%

✅ re_expand_noaspect

Time: ✅ 28.385µs (SLO: <40.000µs 📉 -29.0%) vs baseline: ~same

Memory: ✅ 39.852MB (SLO: <41.000MB -2.8%) vs baseline: +4.7%

✅ re_findall_aspect

Time: ✅ 2.898µs (SLO: <10.000µs 📉 -71.0%) vs baseline: +0.3%

Memory: ✅ 39.911MB (SLO: <41.000MB -2.7%) vs baseline: +4.7%

✅ re_findall_noaspect

Time: ✅ 1.416µs (SLO: <10.000µs 📉 -85.8%) vs baseline: ~same

Memory: ✅ 39.951MB (SLO: <41.000MB -2.6%) vs baseline: +4.8%

✅ re_finditer_aspect

Time: ✅ 4.415µs (SLO: <10.000µs 📉 -55.8%) vs baseline: +0.5%

Memory: ✅ 39.892MB (SLO: <41.000MB -2.7%) vs baseline: +4.9%

✅ re_finditer_noaspect

Time: ✅ 1.393µs (SLO: <10.000µs 📉 -86.1%) vs baseline: -0.6%

Memory: ✅ 39.951MB (SLO: <41.000MB -2.6%) vs baseline: +4.9%

✅ re_fullmatch_aspect

Time: ✅ 2.637µs (SLO: <10.000µs 📉 -73.6%) vs baseline: +0.4%

Memory: ✅ 39.813MB (SLO: <41.000MB -2.9%) vs baseline: +4.7%

✅ re_fullmatch_noaspect

Time: ✅ 1.321µs (SLO: <10.000µs 📉 -86.8%) vs baseline: +2.2%

Memory: ✅ 39.852MB (SLO: <41.000MB -2.8%) vs baseline: +4.7%

✅ re_group_aspect

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

Memory: ✅ 39.892MB (SLO: <41.000MB -2.7%) vs baseline: +5.0%

✅ re_group_noaspect

Time: ✅ 1.590µs (SLO: <10.000µs 📉 -84.1%) vs baseline: -1.0%

Memory: ✅ 39.951MB (SLO: <41.000MB -2.6%) vs baseline: +4.9%

✅ re_groups_aspect

Time: ✅ 3.036µs (SLO: <10.000µs 📉 -69.6%) vs baseline: +0.7%

Memory: ✅ 39.833MB (SLO: <41.000MB -2.8%) vs baseline: +4.6%

✅ re_groups_noaspect

Time: ✅ 1.708µs (SLO: <10.000µs 📉 -82.9%) vs baseline: -0.7%

Memory: ✅ 39.852MB (SLO: <41.000MB -2.8%) vs baseline: +4.9%

✅ re_match_aspect

Time: ✅ 2.682µs (SLO: <10.000µs 📉 -73.2%) vs baseline: +1.6%

Memory: ✅ 39.911MB (SLO: <41.000MB -2.7%) vs baseline: +4.8%

✅ re_match_noaspect

Time: ✅ 1.303µs (SLO: <10.000µs 📉 -87.0%) vs baseline: ~same

Memory: ✅ 39.911MB (SLO: <41.000MB -2.7%) vs baseline: +4.9%

✅ re_search_aspect

Time: ✅ 2.546µs (SLO: <10.000µs 📉 -74.5%) vs baseline: +2.2%

Memory: ✅ 39.872MB (SLO: <41.000MB -2.8%) vs baseline: +4.9%

✅ re_search_noaspect

Time: ✅ 1.205µs (SLO: <10.000µs 📉 -88.0%) vs baseline: +0.8%

Memory: ✅ 39.892MB (SLO: <41.000MB -2.7%) vs baseline: +4.7%

✅ re_sub_aspect

Time: ✅ 3.369µs (SLO: <10.000µs 📉 -66.3%) vs baseline: +1.0%

Memory: ✅ 39.872MB (SLO: <41.000MB -2.8%) vs baseline: +5.0%

✅ re_sub_noaspect

Time: ✅ 1.539µs (SLO: <10.000µs 📉 -84.6%) vs baseline: -0.3%

Memory: ✅ 39.970MB (SLO: <41.000MB -2.5%) vs baseline: +4.9%

✅ re_subn_aspect

Time: ✅ 3.585µs (SLO: <10.000µs 📉 -64.1%) vs baseline: +0.4%

Memory: ✅ 39.911MB (SLO: <41.000MB -2.7%) vs baseline: +5.0%

✅ re_subn_noaspect

Time: ✅ 1.599µs (SLO: <10.000µs 📉 -84.0%) vs baseline: -0.9%

Memory: ✅ 39.892MB (SLO: <41.000MB -2.7%) vs baseline: +4.9%

✅ iastaspects - 118/118

✅ add_aspect

Time: ✅ 0.401µs (SLO: <10.000µs 📉 -96.0%) vs baseline: -1.3%

Memory: ✅ 39.518MB (SLO: <41.500MB -4.8%) vs baseline: +4.8%

✅ add_inplace_aspect

Time: ✅ 0.401µs (SLO: <10.000µs 📉 -96.0%) vs baseline: -2.2%

Memory: ✅ 39.361MB (SLO: <41.500MB -5.2%) vs baseline: +4.6%

✅ add_inplace_noaspect

Time: ✅ 0.318µs (SLO: <10.000µs 📉 -96.8%) vs baseline: -0.7%

Memory: ✅ 39.400MB (SLO: <41.500MB -5.1%) vs baseline: +4.7%

✅ add_noaspect

Time: ✅ 0.276µs (SLO: <10.000µs 📉 -97.2%) vs baseline: -1.7%

Memory: ✅ 39.499MB (SLO: <41.500MB -4.8%) vs baseline: +4.6%

✅ bytearray_aspect

Time: ✅ 1.312µs (SLO: <10.000µs 📉 -86.9%) vs baseline: -0.3%

Memory: ✅ 39.558MB (SLO: <41.500MB -4.7%) vs baseline: +4.8%

✅ bytearray_extend_aspect

Time: ✅ 1.503µs (SLO: <10.000µs 📉 -85.0%) vs baseline: +0.2%

Memory: ✅ 39.341MB (SLO: <41.500MB -5.2%) vs baseline: +3.4%

✅ bytearray_extend_noaspect

Time: ✅ 0.613µs (SLO: <10.000µs 📉 -93.9%) vs baseline: +0.2%

Memory: ✅ 39.440MB (SLO: <41.500MB -5.0%) vs baseline: +4.6%

✅ bytearray_noaspect

Time: ✅ 0.482µs (SLO: <10.000µs 📉 -95.2%) vs baseline: +0.3%

Memory: ✅ 39.479MB (SLO: <41.500MB -4.9%) vs baseline: +4.8%

✅ bytes_aspect

Time: ✅ 1.285µs (SLO: <10.000µs 📉 -87.1%) vs baseline: +0.9%

Memory: ✅ 39.459MB (SLO: <41.500MB -4.9%) vs baseline: +4.6%

✅ bytes_noaspect

Time: ✅ 0.494µs (SLO: <10.000µs 📉 -95.1%) vs baseline: +0.4%

Memory: ✅ 39.322MB (SLO: <41.500MB -5.2%) vs baseline: +4.4%

✅ bytesio_aspect

Time: ✅ 1.317µs (SLO: <10.000µs 📉 -86.8%) vs baseline: +1.1%

Memory: ✅ 39.420MB (SLO: <41.500MB -5.0%) vs baseline: +4.5%

✅ bytesio_noaspect

Time: ✅ 0.501µs (SLO: <10.000µs 📉 -95.0%) vs baseline: +1.6%

Memory: ✅ 39.479MB (SLO: <41.500MB -4.9%) vs baseline: +4.9%

✅ capitalize_aspect

Time: ✅ 0.733µs (SLO: <10.000µs 📉 -92.7%) vs baseline: -1.3%

Memory: ✅ 39.951MB (SLO: <41.500MB -3.7%) vs baseline: +5.0%

✅ capitalize_noaspect

Time: ✅ 0.434µs (SLO: <10.000µs 📉 -95.7%) vs baseline: +1.2%

Memory: ✅ 39.518MB (SLO: <41.500MB -4.8%) vs baseline: +4.7%

✅ casefold_aspect

Time: ✅ 0.740µs (SLO: <10.000µs 📉 -92.6%) vs baseline: +0.6%

Memory: ✅ 39.518MB (SLO: <41.500MB -4.8%) vs baseline: +4.7%

✅ casefold_noaspect

Time: ✅ 0.371µs (SLO: <10.000µs 📉 -96.3%) vs baseline: +0.2%

Memory: ✅ 39.479MB (SLO: <41.500MB -4.9%) vs baseline: +4.9%

✅ decode_aspect

Time: ✅ 0.724µs (SLO: <10.000µs 📉 -92.8%) vs baseline: +0.4%

Memory: ✅ 39.577MB (SLO: <41.500MB -4.6%) vs baseline: +5.0%

✅ decode_noaspect

Time: ✅ 0.416µs (SLO: <10.000µs 📉 -95.8%) vs baseline: -1.4%

Memory: ✅ 39.499MB (SLO: <41.500MB -4.8%) vs baseline: +4.9%

✅ encode_aspect

Time: ✅ 0.713µs (SLO: <10.000µs 📉 -92.9%) vs baseline: -0.4%

Memory: ✅ 39.499MB (SLO: <41.500MB -4.8%) vs baseline: +4.9%

✅ encode_noaspect

Time: ✅ 0.403µs (SLO: <10.000µs 📉 -96.0%) vs baseline: -0.2%

Memory: ✅ 39.479MB (SLO: <41.500MB -4.9%) vs baseline: +4.9%

✅ format_aspect

Time: ✅ 3.328µs (SLO: <10.000µs 📉 -66.7%) vs baseline: -1.6%

Memory: ✅ 39.518MB (SLO: <41.500MB -4.8%) vs baseline: +4.8%

✅ format_map_aspect

Time: ✅ 3.573µs (SLO: <10.000µs 📉 -64.3%) vs baseline: +0.2%

Memory: ✅ 39.558MB (SLO: <41.500MB -4.7%) vs baseline: +5.0%

✅ format_map_noaspect

Time: ✅ 0.780µs (SLO: <10.000µs 📉 -92.2%) vs baseline: +0.3%

Memory: ✅ 39.420MB (SLO: <41.500MB -5.0%) vs baseline: +4.6%

✅ format_noaspect

Time: ✅ 0.596µs (SLO: <10.000µs 📉 -94.0%) vs baseline: +1.1%

Memory: ✅ 39.538MB (SLO: <41.500MB -4.7%) vs baseline: +5.0%

✅ index_aspect

Time: ✅ 0.359µs (SLO: <10.000µs 📉 -96.4%) vs baseline: +0.3%

Memory: ✅ 39.518MB (SLO: <41.500MB -4.8%) vs baseline: +5.1%

✅ index_noaspect

Time: ✅ 0.279µs (SLO: <10.000µs 📉 -97.2%) vs baseline: +1.2%

Memory: ✅ 39.558MB (SLO: <41.500MB -4.7%) vs baseline: +4.9%

✅ join_aspect

Time: ✅ 1.395µs (SLO: <10.000µs 📉 -86.1%) vs baseline: +1.0%

Memory: ✅ 39.459MB (SLO: <41.500MB -4.9%) vs baseline: +4.5%

✅ join_noaspect

Time: ✅ 0.489µs (SLO: <10.000µs 📉 -95.1%) vs baseline: -0.4%

Memory: ✅ 39.499MB (SLO: <41.500MB -4.8%) vs baseline: +5.0%

✅ ljust_aspect

Time: ✅ 2.453µs (SLO: <20.000µs 📉 -87.7%) vs baseline: -0.5%

Memory: ✅ 39.459MB (SLO: <41.500MB -4.9%) vs baseline: +4.7%

✅ ljust_noaspect

Time: ✅ 0.406µs (SLO: <10.000µs 📉 -95.9%) vs baseline: +0.6%

Memory: ✅ 39.479MB (SLO: <41.500MB -4.9%) vs baseline: +4.8%

✅ lower_aspect

Time: ✅ 2.198µs (SLO: <10.000µs 📉 -78.0%) vs baseline: -0.2%

Memory: ✅ 39.440MB (SLO: <41.500MB -5.0%) vs baseline: +4.5%

✅ lower_noaspect

Time: ✅ 0.368µs (SLO: <10.000µs 📉 -96.3%) vs baseline: +0.3%

Memory: ✅ 39.558MB (SLO: <41.500MB -4.7%) vs baseline: +5.1%

✅ lstrip_aspect

Time: ✅ 2.218µs (SLO: <20.000µs 📉 -88.9%) vs baseline: -0.1%

Memory: ✅ 39.479MB (SLO: <41.500MB -4.9%) vs baseline: +4.7%

✅ lstrip_noaspect

Time: ✅ 0.383µs (SLO: <10.000µs 📉 -96.2%) vs baseline: +0.7%

Memory: ✅ 39.558MB (SLO: <41.500MB -4.7%) vs baseline: +4.9%

✅ modulo_aspect

Time: ✅ 1.032µs (SLO: <10.000µs 📉 -89.7%) vs baseline: +2.8%

Memory: ✅ 39.420MB (SLO: <41.500MB -5.0%) vs baseline: +4.5%

✅ modulo_aspect_for_bytearray_bytearray

Time: ✅ 1.541µs (SLO: <10.000µs 📉 -84.6%) vs baseline: -0.6%

Memory: ✅ 39.518MB (SLO: <41.500MB -4.8%) vs baseline: +4.9%

✅ modulo_aspect_for_bytes

Time: ✅ 1.011µs (SLO: <10.000µs 📉 -89.9%) vs baseline: +0.5%

Memory: ✅ 39.538MB (SLO: <41.500MB -4.7%) vs baseline: +3.8%

✅ modulo_aspect_for_bytes_bytearray

Time: ✅ 1.254µs (SLO: <10.000µs 📉 -87.5%) vs baseline: -0.5%

Memory: ✅ 39.479MB (SLO: <41.500MB -4.9%) vs baseline: +4.7%

✅ modulo_noaspect

Time: ✅ 0.632µs (SLO: <10.000µs 📉 -93.7%) vs baseline: +0.4%

Memory: ✅ 39.420MB (SLO: <41.500MB -5.0%) vs baseline: +4.6%

✅ replace_aspect

Time: ✅ 4.863µs (SLO: <10.000µs 📉 -51.4%) vs baseline: +1.3%

Memory: ✅ 39.400MB (SLO: <41.500MB -5.1%) vs baseline: +4.4%

✅ replace_noaspect

Time: ✅ 0.461µs (SLO: <10.000µs 📉 -95.4%) vs baseline: ~same

Memory: ✅ 39.420MB (SLO: <41.500MB -5.0%) vs baseline: +4.5%

✅ repr_aspect

Time: ✅ 0.906µs (SLO: <10.000µs 📉 -90.9%) vs baseline: -0.1%

Memory: ✅ 39.440MB (SLO: <41.500MB -5.0%) vs baseline: +4.6%

✅ repr_noaspect

Time: ✅ 0.417µs (SLO: <10.000µs 📉 -95.8%) vs baseline: -1.5%

Memory: ✅ 39.479MB (SLO: <41.500MB -4.9%) vs baseline: +5.1%

✅ rstrip_aspect

Time: ✅ 1.880µs (SLO: <20.000µs 📉 -90.6%) vs baseline: +1.1%

Memory: ✅ 39.459MB (SLO: <41.500MB -4.9%) vs baseline: +4.6%

✅ rstrip_noaspect

Time: ✅ 0.378µs (SLO: <10.000µs 📉 -96.2%) vs baseline: -0.9%

Memory: ✅ 39.518MB (SLO: <41.500MB -4.8%) vs baseline: +5.0%

✅ slice_aspect

Time: ✅ 0.492µs (SLO: <10.000µs 📉 -95.1%) vs baseline: -1.7%

Memory: ✅ 39.538MB (SLO: <41.500MB -4.7%) vs baseline: +5.2%

✅ slice_noaspect

Time: ✅ 0.449µs (SLO: <10.000µs 📉 -95.5%) vs baseline: +0.3%

Memory: ✅ 39.558MB (SLO: <41.500MB -4.7%) vs baseline: +5.0%

✅ stringio_aspect

Time: ✅ 1.530µs (SLO: <10.000µs 📉 -84.7%) vs baseline: -0.7%

Memory: ✅ 39.420MB (SLO: <41.500MB -5.0%) vs baseline: +4.4%

✅ stringio_noaspect

Time: ✅ 0.712µs (SLO: <10.000µs 📉 -92.9%) vs baseline: -0.5%

Memory: ✅ 39.400MB (SLO: <41.500MB -5.1%) vs baseline: +4.5%

✅ strip_aspect

Time: ✅ 2.220µs (SLO: <20.000µs 📉 -88.9%) vs baseline: +1.7%

Memory: ✅ 39.558MB (SLO: <41.500MB -4.7%) vs baseline: +4.8%

✅ strip_noaspect

Time: ✅ 0.386µs (SLO: <10.000µs 📉 -96.1%) vs baseline: +0.2%

Memory: ✅ 39.538MB (SLO: <41.500MB -4.7%) vs baseline: +5.2%

✅ swapcase_aspect

Time: ✅ 2.389µs (SLO: <10.000µs 📉 -76.1%) vs baseline: +0.4%

Memory: ✅ 39.440MB (SLO: <41.500MB -5.0%) vs baseline: +5.0%

✅ swapcase_noaspect

Time: ✅ 0.529µs (SLO: <10.000µs 📉 -94.7%) vs baseline: -0.5%

Memory: ✅ 39.577MB (SLO: <41.500MB -4.6%) vs baseline: +5.2%

✅ title_aspect

Time: ✅ 2.304µs (SLO: <10.000µs 📉 -77.0%) vs baseline: -0.9%

Memory: ✅ 39.538MB (SLO: <41.500MB -4.7%) vs baseline: +4.9%

✅ title_noaspect

Time: ✅ 0.499µs (SLO: <10.000µs 📉 -95.0%) vs baseline: ~same

Memory: ✅ 39.479MB (SLO: <41.500MB -4.9%) vs baseline: +4.7%

✅ translate_aspect

Time: ✅ 3.236µs (SLO: <10.000µs 📉 -67.6%) vs baseline: +2.0%

Memory: ✅ 39.499MB (SLO: <41.500MB -4.8%) vs baseline: +4.9%

✅ translate_noaspect

Time: ✅ 1.047µs (SLO: <10.000µs 📉 -89.5%) vs baseline: +0.5%

Memory: ✅ 39.479MB (SLO: <41.500MB -4.9%) vs baseline: +4.6%

✅ upper_aspect

Time: ✅ 2.207µs (SLO: <10.000µs 📉 -77.9%) vs baseline: -0.8%

Memory: ✅ 39.538MB (SLO: <41.500MB -4.7%) vs baseline: +4.9%

✅ upper_noaspect

Time: ✅ 0.367µs (SLO: <10.000µs 📉 -96.3%) vs baseline: -1.1%

Memory: ✅ 39.420MB (SLO: <41.500MB -5.0%) vs baseline: +4.9%

✅ iastaspectsospath - 24/24

✅ ospathbasename_aspect

Time: ✅ 4.347µs (SLO: <10.000µs 📉 -56.5%) vs baseline: +0.5%

Memory: ✅ 39.813MB (SLO: <41.000MB -2.9%) vs baseline: +4.5%

✅ ospathbasename_noaspect

Time: ✅ 1.095µs (SLO: <10.000µs 📉 -89.0%) vs baseline: +0.4%

Memory: ✅ 39.833MB (SLO: <41.000MB -2.8%) vs baseline: +4.8%

✅ ospathjoin_aspect

Time: ✅ 6.176µs (SLO: <10.000µs 📉 -38.2%) vs baseline: +0.4%

Memory: ✅ 39.793MB (SLO: <41.000MB -2.9%) vs baseline: +4.8%

✅ ospathjoin_noaspect

Time: ✅ 2.288µs (SLO: <10.000µs 📉 -77.1%) vs baseline: -0.1%

Memory: ✅ 39.990MB (SLO: <41.000MB -2.5%) vs baseline: +5.0%

✅ ospathnormcase_aspect

Time: ✅ 3.509µs (SLO: <10.000µs 📉 -64.9%) vs baseline: -1.0%

Memory: ✅ 39.911MB (SLO: <41.000MB -2.7%) vs baseline: +4.9%

✅ ospathnormcase_noaspect

Time: ✅ 0.566µs (SLO: <10.000µs 📉 -94.3%) vs baseline: -0.6%

Memory: ✅ 39.852MB (SLO: <41.000MB -2.8%) vs baseline: +4.7%

✅ ospathsplit_aspect

Time: ✅ 4.873µs (SLO: <10.000µs 📉 -51.3%) vs baseline: -0.4%

Memory: ✅ 39.813MB (SLO: <41.000MB -2.9%) vs baseline: +4.7%

✅ ospathsplit_noaspect

Time: ✅ 1.595µs (SLO: <10.000µs 📉 -84.1%) vs baseline: +0.2%

Memory: ✅ 39.931MB (SLO: <41.000MB -2.6%) vs baseline: +5.0%

✅ ospathsplitdrive_aspect

Time: ✅ 3.691µs (SLO: <10.000µs 📉 -63.1%) vs baseline: +0.1%

Memory: ✅ 39.951MB (SLO: <41.000MB -2.6%) vs baseline: +4.9%

✅ ospathsplitdrive_noaspect

Time: ✅ 0.697µs (SLO: <10.000µs 📉 -93.0%) vs baseline: -0.2%

Memory: ✅ 39.872MB (SLO: <41.000MB -2.8%) vs baseline: +4.8%

✅ ospathsplitext_aspect

Time: ✅ 4.586µs (SLO: <10.000µs 📉 -54.1%) vs baseline: -0.2%

Memory: ✅ 39.892MB (SLO: <41.000MB -2.7%) vs baseline: +4.9%

✅ ospathsplitext_noaspect

Time: ✅ 1.377µs (SLO: <10.000µs 📉 -86.2%) vs baseline: ~same

Memory: ✅ 39.892MB (SLO: <41.000MB -2.7%) vs baseline: +5.0%

✅ iastaspectssplit - 12/12

✅ rsplit_aspect

Time: ✅ 1.436µs (SLO: <10.000µs 📉 -85.6%) vs baseline: +1.5%

Memory: ✅ 39.852MB (SLO: <41.000MB -2.8%) vs baseline: +4.8%

✅ rsplit_noaspect

Time: ✅ 0.579µs (SLO: <10.000µs 📉 -94.2%) vs baseline: +0.2%

Memory: ✅ 39.970MB (SLO: <41.000MB -2.5%) vs baseline: +4.9%

✅ split_aspect

Time: ✅ 1.386µs (SLO: <10.000µs 📉 -86.1%) vs baseline: -1.0%

Memory: ✅ 39.951MB (SLO: <41.000MB -2.6%) vs baseline: +4.8%

✅ split_noaspect

Time: ✅ 0.568µs (SLO: <10.000µs 📉 -94.3%) vs baseline: -0.2%

Memory: ✅ 39.970MB (SLO: <41.000MB -2.5%) vs baseline: +5.1%

✅ splitlines_aspect

Time: ✅ 1.399µs (SLO: <10.000µs 📉 -86.0%) vs baseline: +0.9%

Memory: ✅ 39.892MB (SLO: <41.000MB -2.7%) vs baseline: +4.9%

✅ splitlines_noaspect

Time: ✅ 0.583µs (SLO: <10.000µs 📉 -94.2%) vs baseline: -1.2%

Memory: ✅ 39.872MB (SLO: <41.000MB -2.8%) vs baseline: +4.7%

✅ otelsdkspan - 24/24

✅ add-event

Time: ✅ 40.351ms (SLO: <42.000ms -3.9%) vs baseline: -0.1%

Memory: ✅ 36.943MB (SLO: <39.000MB -5.3%) vs baseline: +5.0%

✅ add-link

Time: ✅ 36.707ms (SLO: <38.550ms -4.8%) vs baseline: +2.0%

Memory: ✅ 36.943MB (SLO: <39.000MB -5.3%) vs baseline: +4.9%

✅ add-metrics

Time: ✅ 221.663ms (SLO: <232.000ms -4.5%) vs baseline: +2.1%

Memory: ✅ 37.021MB (SLO: <39.000MB -5.1%) vs baseline: +5.0%

✅ add-tags

Time: ✅ 211.895ms (SLO: <221.600ms -4.4%) vs baseline: -0.6%

Memory: ✅ 36.943MB (SLO: <39.000MB -5.3%) vs baseline: +4.9%

✅ get-context

Time: ✅ 29.056ms (SLO: <31.300ms -7.2%) vs baseline: ~same

Memory: ✅ 36.884MB (SLO: <39.000MB -5.4%) vs baseline: +4.5%

✅ is-recording

Time: ✅ 29.847ms (SLO: <31.000ms -3.7%) vs baseline: +2.6%

Memory: ✅ 36.943MB (SLO: <39.000MB -5.3%) vs baseline: +4.9%

✅ record-exception

Time: ✅ 62.946ms (SLO: <65.850ms -4.4%) vs baseline: -0.4%

Memory: ✅ 36.962MB (SLO: <39.000MB -5.2%) vs baseline: +4.9%

✅ set-status

Time: ✅ 31.826ms (SLO: <34.150ms -6.8%) vs baseline: -0.1%

Memory: ✅ 36.982MB (SLO: <39.000MB -5.2%) vs baseline: +5.0%

✅ start

Time: ✅ 28.873ms (SLO: <30.150ms -4.2%) vs baseline: +0.7%

Memory: ✅ 36.982MB (SLO: <39.000MB -5.2%) vs baseline: +5.2%

✅ start-finish

Time: ✅ 34.028ms (SLO: <35.350ms -3.7%) vs baseline: +1.0%

Memory: ✅ 36.903MB (SLO: <39.000MB -5.4%) vs baseline: +4.7%

✅ start-finish-telemetry

Time: ✅ 33.606ms (SLO: <35.450ms -5.2%) vs baseline: -0.8%

Memory: ✅ 36.962MB (SLO: <39.000MB -5.2%) vs baseline: +5.1%

✅ update-name

Time: ✅ 30.860ms (SLO: <33.400ms -7.6%) vs baseline: -0.2%

Memory: ✅ 37.061MB (SLO: <39.000MB -5.0%) vs baseline: +5.1%

✅ packagespackageforrootmodulemapping - 4/4

✅ cache_off

Time: ✅ 339.561ms (SLO: <354.300ms -4.2%) vs baseline: -0.7%

Memory: ✅ 40.055MB (SLO: <41.500MB -3.5%) vs baseline: +3.8%

✅ cache_on

Time: ✅ 0.380µs (SLO: <10.000µs 📉 -96.2%) vs baseline: -0.4%

Memory: ✅ 38.631MB (SLO: <41.000MB -5.8%) vs baseline: +5.6%

✅ packagesupdateimporteddependencies - 24/24

✅ import_many

Time: ✅ 155.255µs (SLO: <170.000µs -8.7%) vs baseline: +0.3%

Memory: ✅ 39.364MB (SLO: <41.000MB -4.0%) vs baseline: +4.9%

✅ import_many_cached

Time: ✅ 120.487µs (SLO: <130.000µs -7.3%) vs baseline: -0.1%

Memory: ✅ 39.258MB (SLO: <41.000MB -4.2%) vs baseline: +4.9%

✅ import_many_stdlib

Time: ✅ 1.629ms (SLO: <1.750ms -6.9%) vs baseline: -0.2%

Memory: ✅ 39.374MB (SLO: <41.000MB -4.0%) vs baseline: +4.6%

✅ import_many_stdlib_cached

Time: ✅ 0.981ms (SLO: <1.100ms 📉 -10.9%) vs baseline: -0.4%

Memory: ✅ 39.615MB (SLO: <41.000MB -3.4%) vs baseline: +5.4%

✅ import_many_unknown

Time: ✅ 837.365µs (SLO: <890.000µs -5.9%) vs baseline: +0.2%

Memory: ✅ 39.486MB (SLO: <41.000MB -3.7%) vs baseline: +4.6%

✅ import_many_unknown_cached

Time: ✅ 789.870µs (SLO: <870.000µs -9.2%) vs baseline: +0.2%

Memory: ✅ 39.521MB (SLO: <41.000MB -3.6%) vs baseline: +5.2%

✅ import_one

Time: ✅ 19.849µs (SLO: <30.000µs 📉 -33.8%) vs baseline: -0.2%

Memory: ✅ 39.444MB (SLO: <41.000MB -3.8%) vs baseline: +4.9%

✅ import_one_cache

Time: ✅ 6.274µs (SLO: <10.000µs 📉 -37.3%) vs baseline: -0.2%

Memory: ✅ 39.472MB (SLO: <41.000MB -3.7%) vs baseline: +5.3%

✅ import_one_stdlib

Time: ✅ 18.652µs (SLO: <20.000µs -6.7%) vs baseline: +0.1%

Memory: ✅ 39.323MB (SLO: <41.000MB -4.1%) vs baseline: +4.9%

✅ import_one_stdlib_cache

Time: ✅ 6.287µs (SLO: <10.000µs 📉 -37.1%) vs baseline: -0.5%

Memory: ✅ 39.342MB (SLO: <41.000MB -4.0%) vs baseline: +4.9%

✅ import_one_unknown

Time: ✅ 45.384µs (SLO: <50.000µs -9.2%) vs baseline: -0.5%

Memory: ✅ 39.368MB (SLO: <41.000MB -4.0%) vs baseline: +5.1%

✅ import_one_unknown_cache

Time: ✅ 6.282µs (SLO: <10.000µs 📉 -37.2%) vs baseline: -0.4%

Memory: ✅ 39.282MB (SLO: <41.000MB -4.2%) vs baseline: +4.7%

✅ ratelimiter - 12/12

✅ defaults

Time: ✅ 2.360µs (SLO: <10.000µs 📉 -76.4%) vs baseline: -0.2%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.7%

✅ high_rate_limit

Time: ✅ 2.433µs (SLO: <10.000µs 📉 -75.7%) vs baseline: +0.4%

Memory: ✅ 34.623MB (SLO: <35.500MB -2.5%) vs baseline: +4.9%

✅ long_window

Time: ✅ 2.366µs (SLO: <10.000µs 📉 -76.3%) vs baseline: +0.6%

Memory: ✅ 34.623MB (SLO: <35.500MB -2.5%) vs baseline: +5.1%

✅ low_rate_limit

Time: ✅ 2.383µs (SLO: <10.000µs 📉 -76.2%) vs baseline: -0.1%

Memory: ✅ 34.662MB (SLO: <35.500MB -2.4%) vs baseline: +5.3%

✅ no_rate_limit

Time: ✅ 0.832µs (SLO: <10.000µs 📉 -91.7%) vs baseline: -0.5%

Memory: ✅ 34.564MB (SLO: <35.500MB -2.6%) vs baseline: +4.8%

✅ short_window

Time: ✅ 2.489µs (SLO: <10.000µs 📉 -75.1%) vs baseline: -1.5%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.6%

✅ recursivecomputation - 8/8

✅ deep

Time: ✅ 309.416ms (SLO: <320.950ms -3.6%) vs baseline: +0.3%

Memory: ✅ 35.389MB (SLO: <36.500MB -3.0%) vs baseline: +5.1%

✅ deep-profiled

Time: ✅ 330.504ms (SLO: <359.150ms -8.0%) vs baseline: -0.5%

Memory: ✅ 39.223MB (SLO: <40.500MB -3.2%) vs baseline: +4.3%

✅ medium

Time: ✅ 6.999ms (SLO: <7.400ms -5.4%) vs baseline: ~same

Memory: ✅ 34.564MB (SLO: <35.500MB -2.6%) vs baseline: +4.7%

✅ shallow

Time: ✅ 0.939ms (SLO: <1.050ms 📉 -10.6%) vs baseline: ~same

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.8%

✅ samplingrules - 8/8

✅ average_match

Time: ✅ 137.166µs (SLO: <290.000µs 📉 -52.7%) vs baseline: -1.0%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +5.2%

✅ high_match

Time: ✅ 172.564µs (SLO: <480.000µs 📉 -64.0%) vs baseline: -0.2%

Memory: ✅ 34.426MB (SLO: <35.500MB -3.0%) vs baseline: +4.7%

✅ low_match

Time: ✅ 98.690µs (SLO: <120.000µs 📉 -17.8%) vs baseline: ~same

Memory: ✅ 603.108MB (SLO: <700.000MB 📉 -13.8%) vs baseline: +4.9%

✅ very_low_match

Time: ✅ 2.664ms (SLO: <8.500ms 📉 -68.7%) vs baseline: +0.3%

Memory: ✅ 70.496MB (SLO: <75.000MB -6.0%) vs baseline: +4.9%

✅ sethttpmeta - 32/32

✅ all-disabled

Time: ✅ 10.496µs (SLO: <20.000µs 📉 -47.5%) vs baseline: +0.5%

Memory: ✅ 34.957MB (SLO: <36.000MB -2.9%) vs baseline: +4.7%

✅ all-enabled

Time: ✅ 39.760µs (SLO: <50.000µs 📉 -20.5%) vs baseline: -0.6%

Memory: ✅ 35.036MB (SLO: <36.000MB -2.7%) vs baseline: +5.0%

✅ collectipvariant_exists

Time: ✅ 40.551µs (SLO: <50.000µs 📉 -18.9%) vs baseline: -0.3%

Memory: ✅ 34.957MB (SLO: <36.000MB -2.9%) vs baseline: +4.7%

✅ no-collectipvariant

Time: ✅ 39.695µs (SLO: <50.000µs 📉 -20.6%) vs baseline: -0.7%

Memory: ✅ 35.075MB (SLO: <36.000MB -2.6%) vs baseline: +5.1%

✅ no-useragentvariant

Time: ✅ 38.528µs (SLO: <50.000µs 📉 -22.9%) vs baseline: ~same

Memory: ✅ 34.996MB (SLO: <36.000MB -2.8%) vs baseline: +4.8%

✅ obfuscation-no-query

Time: ✅ 40.325µs (SLO: <50.000µs 📉 -19.3%) vs baseline: ~same

Memory: ✅ 34.859MB (SLO: <36.000MB -3.2%) vs baseline: +4.6%

✅ obfuscation-regular-case-explicit-query

Time: ✅ 75.892µs (SLO: <90.000µs 📉 -15.7%) vs baseline: ~same

Memory: ✅ 34.878MB (SLO: <36.500MB -4.4%) vs baseline: +4.5%

✅ obfuscation-regular-case-implicit-query

Time: ✅ 76.166µs (SLO: <90.000µs 📉 -15.4%) vs baseline: -0.2%

Memory: ✅ 35.055MB (SLO: <36.500MB -4.0%) vs baseline: +5.0%

✅ obfuscation-send-querystring-disabled

Time: ✅ 153.852µs (SLO: <170.000µs -9.5%) vs baseline: -0.1%

Memory: ✅ 35.409MB (SLO: <36.500MB -3.0%) vs baseline: +6.2%

✅ obfuscation-worst-case-explicit-query

Time: ✅ 148.300µs (SLO: <160.000µs -7.3%) vs baseline: +0.1%

Memory: ✅ 35.330MB (SLO: <36.500MB -3.2%) vs baseline: +5.9%

✅ obfuscation-worst-case-implicit-query

Time: ✅ 154.188µs (SLO: <170.000µs -9.3%) vs baseline: -0.4%

Memory: ✅ 35.370MB (SLO: <36.500MB -3.1%) vs baseline: +6.0%

✅ useragentvariant_exists_1

Time: ✅ 39.353µs (SLO: <50.000µs 📉 -21.3%) vs baseline: +0.4%

Memory: ✅ 34.918MB (SLO: <36.000MB -3.0%) vs baseline: +4.9%

✅ useragentvariant_exists_2

Time: ✅ 40.521µs (SLO: <50.000µs 📉 -19.0%) vs baseline: +0.4%

Memory: ✅ 34.957MB (SLO: <36.000MB -2.9%) vs baseline: +5.0%

✅ useragentvariant_exists_3

Time: ✅ 40.087µs (SLO: <50.000µs 📉 -19.8%) vs baseline: +0.5%

Memory: ✅ 35.036MB (SLO: <36.000MB -2.7%) vs baseline: +5.0%

✅ useragentvariant_not_exists_1

Time: ✅ 39.147µs (SLO: <50.000µs 📉 -21.7%) vs baseline: -0.3%

Memory: ✅ 35.075MB (SLO: <36.000MB -2.6%) vs baseline: +5.3%

✅ useragentvariant_not_exists_2

Time: ✅ 39.465µs (SLO: <50.000µs 📉 -21.1%) vs baseline: +0.1%

Memory: ✅ 34.878MB (SLO: <36.000MB -3.1%) vs baseline: +4.6%

✅ span - 26/26

✅ add-event

Time: ✅ 17.288ms (SLO: <22.500ms 📉 -23.2%) vs baseline: +0.9%

Memory: ✅ 36.406MB (SLO: <53.000MB 📉 -31.3%) vs baseline: +4.8%

✅ add-metrics

Time: ✅ 86.840ms (SLO: <93.500ms -7.1%) vs baseline: -1.0%

Memory: ✅ 40.790MB (SLO: <53.000MB 📉 -23.0%) vs baseline: +4.9%

✅ add-tags

Time: ✅ 138.864ms (SLO: <155.000ms 📉 -10.4%) vs baseline: -0.6%

Memory: ✅ 40.482MB (SLO: <53.000MB 📉 -23.6%) vs baseline: +4.9%

✅ get-context

Time: ✅ 16.182ms (SLO: <20.500ms 📉 -21.1%) vs baseline: +1.0%

Memory: ✅ 36.243MB (SLO: <53.000MB 📉 -31.6%) vs baseline: +5.3%

✅ is-recording

Time: ✅ 16.509ms (SLO: <20.500ms 📉 -19.5%) vs baseline: +1.7%

Memory: ✅ 36.156MB (SLO: <53.000MB 📉 -31.8%) vs baseline: +4.7%

✅ record-exception

Time: ✅ 35.265ms (SLO: <40.000ms 📉 -11.8%) vs baseline: ~same

Memory: ✅ 36.823MB (SLO: <53.000MB 📉 -30.5%) vs baseline: +5.2%

✅ set-status

Time: ✅ 17.719ms (SLO: <22.000ms 📉 -19.5%) vs baseline: -0.5%

Memory: ✅ 36.184MB (SLO: <53.000MB 📉 -31.7%) vs baseline: +5.0%

✅ start

Time: ✅ 16.184ms (SLO: <20.500ms 📉 -21.1%) vs baseline: +1.8%

Memory: ✅ 36.278MB (SLO: <53.000MB 📉 -31.6%) vs baseline: +5.4%

✅ start-finish

Time: ✅ 51.004ms (SLO: <52.500ms -2.8%) vs baseline: +0.9%

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +4.7%

✅ start-finish-telemetry

Time: ✅ 52.361ms (SLO: <54.500ms -3.9%) vs baseline: +0.3%

Memory: ✅ 34.662MB (SLO: <35.500MB -2.4%) vs baseline: +5.2%

✅ start-finish-traceid128

Time: ✅ 53.611ms (SLO: <57.000ms -5.9%) vs baseline: -0.1%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.7%

✅ start-traceid128

Time: ✅ 16.370ms (SLO: <22.500ms 📉 -27.2%) vs baseline: +0.2%

Memory: ✅ 36.210MB (SLO: <53.000MB 📉 -31.7%) vs baseline: +4.5%

✅ update-name

Time: ✅ 16.391ms (SLO: <22.000ms 📉 -25.5%) vs baseline: ~same

Memory: ✅ 36.410MB (SLO: <53.000MB 📉 -31.3%) vs baseline: +5.0%

✅ tracer - 6/6

✅ large

Time: ✅ 29.113ms (SLO: <32.950ms 📉 -11.6%) vs baseline: +0.2%

Memory: ✅ 35.527MB (SLO: <36.500MB -2.7%) vs baseline: +4.3%

✅ medium

Time: ✅ 2.873ms (SLO: <3.200ms 📉 -10.2%) vs baseline: -0.1%

Memory: ✅ 34.131MB (SLO: <35.500MB -3.9%) vs baseline: +4.7%

✅ small

Time: ✅ 325.286µs (SLO: <370.000µs 📉 -12.1%) vs baseline: +0.5%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.7%

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 force-pushed the kowalski/reduce-locking-on-profile-object branch from 9adf42e to 4c297d4 Compare November 18, 2025 09:26
@KowalskiThomas KowalskiThomas force-pushed the kowalski/reduce-locking-on-profile-object branch from 4c297d4 to 1d245aa Compare November 18, 2025 10:11
@KowalskiThomas KowalskiThomas force-pushed the kowalski/reduce-locking-on-profile-object branch from 0adb927 to a201ec6 Compare November 18, 2025 14:58
@KowalskiThomas KowalskiThomas changed the title refactor: rename profiler_stats to cur_profiler_stats feat(profiling): make Profile upload lock-free Nov 18, 2025
@KowalskiThomas KowalskiThomas marked this pull request as ready for review November 18, 2025 14:59
@KowalskiThomas KowalskiThomas requested a review from a team as a code owner November 18, 2025 14:59
@KowalskiThomas KowalskiThomas added Profiling Continous Profling changelog/no-changelog A changelog entry is not required for this PR. labels Nov 18, 2025
vlad-scherbich
vlad-scherbich approved these changes Nov 20, 2025
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@vlad-scherbich vlad-scherbich left a comment •
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Just a couple non-locking questions :)

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@KowalskiThomas KowalskiThomas merged commit 441fc1c into main Nov 20, 2025
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@KowalskiThomas KowalskiThomas deleted the kowalski/reduce-locking-on-profile-object branch November 20, 2025 17:54
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@vlad-scherbich vlad-scherbich vlad-scherbich approved these changes

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@KowalskiThomas @vlad-scherbich