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DO NOT MERGE - #12108

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AlexeyKuznetsov-DD wants to merge 38 commits into
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alexeyk/fix-v1-span-events-json-encoding-v1-default
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AlexeyKuznetsov-DD wants to merge 38 commits into
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alexeyk/fix-v1-span-events-json-encoding-v1-default

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DO NOT MERGE, just for testing

@AlexeyKuznetsov-DD AlexeyKuznetsov-DD self-assigned this Jul 29, 2026
@AlexeyKuznetsov-DD AlexeyKuznetsov-DD added tag: do not merge Do not merge changes comp: core Tracer core tag: no release notes Changes to exclude from release notes labels Jul 29, 2026
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dd-octo-sts Bot commented Jul 30, 2026 •

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🟡 Java Benchmark SLOs — Performance SLO warning (near threshold)

Suite Status
Startup 🟡 warning

SLO thresholds are defined here based on automatically generated metrics. A warning is raised when results are within 5% of the threshold.

PR vs. master results
Scenario Candidate master Δ (95% CI of mean)
startup:insecure-bank:iast:Agent 13.95 s 14.00 s [-1.1%; +0.3%] (no difference)
startup:insecure-bank:tracing:Agent 12.99 s 13.01 s [-1.0%; +0.8%] (no difference)
startup:petclinic:appsec:Agent 17.77 s 17.48 s [+0.5%; +2.8%] (maybe worse)
startup:petclinic:iast:Agent 17.27 s 17.61 s [-2.6%; -1.1%] (significantly better)
startup:petclinic:profiling:Agent 17.37 s 17.28 s [-0.8%; +1.9%] (no difference)
startup:petclinic:sca:Agent 17.70 s 17.67 s [-0.9%; +1.1%] (no difference)
startup:petclinic:tracing:Agent 16.66 s 16.72 s [-1.4%; +0.6%] (no difference)

Commit: 0f96ac49 · CI Pipeline · Benchmarking Platform UI


Load and DaCapo benchmarks can be triggered manually in the GitLab pipeline. Results will appear in the Benchmarking Platform UI after completion.

# Conflicts:
#	dd-trace-core/src/test/java/datadog/trace/core/DDSpanSerializationTest.java
AlexeyKuznetsov-DD and others added 14 commits September 18, 2026 11:17
SpanV1 skipped the span events field, so spans decoded from v1 payloads
lost their events, and the blind skip consumed streaming strings without
registering them, desynchronizing the string table. Decode the events
through the table-aware helpers into the same events meta tag the tracer
writes for v0.4, so both protocols decode to the same tag.

Also split the JSON decoder span events precedence/empty test into
focused tests.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
…1-default

# Conflicts:
#	utils/test-agent-utils/decoder/src/main/java/datadog/trace/test/agent/decoder/json/raw/SpanJson.java
#	utils/test-agent-utils/decoder/src/main/java/datadog/trace/test/agent/decoder/v1/raw/SpanV1.java
#	utils/test-agent-utils/decoder/src/test/java/datadog/trace/test/agent/decoder/v1/raw/SpanV1Test.java

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