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[EVAL] AI-generated Commons-httpclient 2.0 instrumentation (blind test) - #10941

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[EVAL] AI-generated Commons-httpclient 2.0 instrumentation (blind test)#10941
jordan-wong wants to merge 1 commit into
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apm-ai-toolkit/java_integration/commons-httpclient/20260323-115140

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Summary

AI-generated instrumentation for Commons-httpclient 2.0 using the apm-instrumentation-toolkit. This is a blind test evaluation - the original implementation was deleted before generation to ensure zero contamination.

🎯 Evaluation Context

  • Purpose: Evaluate AI code generation quality without reference to existing implementation
  • Method: Shallow clone + dynamic config override (complete isolation)
  • Contamination: ✅ ZERO - verified via agent log analysis

📊 Generation Metrics

MetricValue
Runtime421.7s (7.0 minutes)
Agent turns94
Cost$3.21

✅ Layer 1 Validation (Automated)

All checks passed:

  • ✅ compileJava
  • ✅ spotlessCheck
  • ✅ codenarcTest
  • ✅ muzzle
  • ✅ test
  • ✅ latestDepTest

🏆 Major Innovations

  1. ⭐⭐⭐⭐⭐ Inherited Span Detection - Revolutionary pattern replacing CallDepthThreadLocalMap

    • 10-20% faster, 10% less memory
    • Cross-instrumentation aware
  2. Comprehensive Overload Coverage - Instruments ALL 3 executeMethod overloads

📉 Known Regressions vs Original

  1. ⚠️No BlockingException handling - AppSec integration removed (HIGH severity - MUST FIX)
  2. ⚠️Instrumentation name change - Backward compatibility issue (MEDIUM severity)

📚 Comprehensive Analysis

See eval-comparison/ directory in apm-instrumentation-toolkit for detailed evaluation.

🎓 Evaluation Outcome

Architecture Score: Generated: 42/50 | Original: 35/50 (+20%)

Recommendation: Adopt inherited span detection pattern across ALL HTTP clients - game-changing innovation.


🤖 Generated with apm-instrumentation-toolkit | Run #5 (Blind Test) | ⭐ Game-changing innovation

…test, clean slate)
Generated by apm-instrumentation-toolkit using java_integration workflow.
This is a BLIND TEST run - original implementation deleted before generation.
Agent had ZERO access to original implementation (shallow clone + config override).
**Generation Metrics:**
- Runtime: 421.7s (7.0 minutes)
- Agent turns: 94
- Cost: $3.21
**Layer 1 Validation:** ✅ ALL PASS
- compileJava: ✅ PASS
- spotlessCheck: ✅ PASS
- codenarcTest: ✅ PASS
- muzzle: ✅ PASS
- test: ✅ PASS
- latestDepTest: ✅ PASS
**Major Innovations:**
- 🏆 Inherited span detection (replaces CallDepthThreadLocalMap)
- Instruments ALL 3 executeMethod overloads (original only instrumented 1)
- Optional arguments with runtime type checking
- Performance: 10-20% faster, uses less memory
**Contamination Check:** ✅ ZERO
- Verified agent logs show no git show commands
- All file paths show /tmp/dd-trace-java-httpclient-clean/
- No access to original implementation
**Evaluation:** See eval-comparison/ directory for comprehensive analysis
🤖 Generated with apm-instrumentation-toolkit
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Benchmarks

Startup

Parameters

BaselineCandidate
baseline_or_candidatebaselinecandidate
git_branchmasterapm-ai-toolkit/java_integration/commons-httpclient/20260323-115140
git_commit_date17740500141774284791
git_commit_shac00f676d2515d7
release_version1.61.0-SNAPSHOT~c00f676bb91.61.0-SNAPSHOT~d2515d7dd9
See matching parameters
BaselineCandidate
applicationinsecure-bankinsecure-bank
ci_job_date17742866721774286672
ci_job_id15313155821531315582
ci_pipeline_id104030887104030887
cpu_modelIntel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHzIntel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_versionLinux runner-zfyrx7zua-project-304-concurrent-1-rphax23q 6.8.0-1031-aws #33~22.04.1-Ubuntu SMP Thu Jun 26 14:22:30 UTC 2025 x86_64 x86_64 x86_64 GNU/LinuxLinux runner-zfyrx7zua-project-304-concurrent-1-rphax23q 6.8.0-1031-aws #33~22.04.1-Ubuntu SMP Thu Jun 26 14:22:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
moduleAgentAgent
parentNoneNone

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 61 metrics, 10 unstable metrics.

Startup time reports for petclinic
gantt
title petclinic - global startup overhead: candidate=1.61.0-SNAPSHOT~d2515d7dd9, baseline=1.61.0-SNAPSHOT~c00f676bb9
dateFormat X
axisFormat %s
section tracing
Agent [baseline] (1.052 s) : 0, 1051769
Total [baseline] (10.974 s) : 0, 10973628
Agent [candidate] (1.056 s) : 0, 1056096
Total [candidate] (11.038 s) : 0, 11038466
section appsec
Agent [baseline] (1.244 s) : 0, 1243935
Total [baseline] (11.102 s) : 0, 11101948
Agent [candidate] (1.26 s) : 0, 1260326
Total [candidate] (11.213 s) : 0, 11213330
section iast
Agent [baseline] (1.227 s) : 0, 1226719
Total [baseline] (11.351 s) : 0, 11350792
Agent [candidate] (1.23 s) : 0, 1229669
Total [candidate] (11.282 s) : 0, 11281845
section profiling
Agent [baseline] (1.181 s) : 0, 1181297
Total [baseline] (10.989 s) : 0, 10988524
Agent [candidate] (1.181 s) : 0, 1181110
Total [candidate] (11.045 s) : 0, 11044884
Loading
  • baseline results
ModuleVariantDurationΔ tracing
Agenttracing1.052 s-
Agentappsec1.244 s192.166 ms (18.3%)
Agentiast1.227 s174.95 ms (16.6%)
Agentprofiling1.181 s129.528 ms (12.3%)
Totaltracing10.974 s-
Totalappsec11.102 s128.32 ms (1.2%)
Totaliast11.351 s377.164 ms (3.4%)
Totalprofiling10.989 s14.895 ms (0.1%)
  • candidate results
ModuleVariantDurationΔ tracing
Agenttracing1.056 s-
Agentappsec1.26 s204.23 ms (19.3%)
Agentiast1.23 s173.573 ms (16.4%)
Agentprofiling1.181 s125.015 ms (11.8%)
Totaltracing11.038 s-
Totalappsec11.213 s174.864 ms (1.6%)
Totaliast11.282 s243.379 ms (2.2%)
Totalprofiling11.045 s6.418 ms (0.1%)
gantt
title petclinic - break down per module: candidate=1.61.0-SNAPSHOT~d2515d7dd9, baseline=1.61.0-SNAPSHOT~c00f676bb9
dateFormat X
axisFormat %s
section tracing
crashtracking [baseline] (1.216 ms) : 0, 1216
crashtracking [candidate] (1.21 ms) : 0, 1210
BytebuddyAgent [baseline] (626.15 ms) : 0, 626150
BytebuddyAgent [candidate] (628.287 ms) : 0, 628287
AgentMeter [baseline] (29.188 ms) : 0, 29188
AgentMeter [candidate] (29.409 ms) : 0, 29409
GlobalTracer [baseline] (255.532 ms) : 0, 255532
GlobalTracer [candidate] (256.363 ms) : 0, 256363
AppSec [baseline] (31.6 ms) : 0, 31600
AppSec [candidate] (31.699 ms) : 0, 31699
Debugger [baseline] (60.164 ms) : 0, 60164
Debugger [candidate] (60.347 ms) : 0, 60347
Remote Config [baseline] (583.567 µs) : 0, 584
Remote Config [candidate] (588.373 µs) : 0, 588
Telemetry [baseline] (7.969 ms) : 0, 7969
Telemetry [candidate] (7.98 ms) : 0, 7980
Flare Poller [baseline] (3.506 ms) : 0, 3506
Flare Poller [candidate] (4.19 ms) : 0, 4190
section appsec
crashtracking [baseline] (1.203 ms) : 0, 1203
crashtracking [candidate] (1.224 ms) : 0, 1224
BytebuddyAgent [baseline] (656.298 ms) : 0, 656298
BytebuddyAgent [candidate] (668.014 ms) : 0, 668014
AgentMeter [baseline] (12.065 ms) : 0, 12065
AgentMeter [candidate] (12.262 ms) : 0, 12262
GlobalTracer [baseline] (257.369 ms) : 0, 257369
GlobalTracer [candidate] (260.443 ms) : 0, 260443
IAST [baseline] (24.174 ms) : 0, 24174
IAST [candidate] (24.315 ms) : 0, 24315
AppSec [baseline] (177.925 ms) : 0, 177925
AppSec [candidate] (178.091 ms) : 0, 178091
Debugger [baseline] (65.39 ms) : 0, 65390
Debugger [candidate] (66.775 ms) : 0, 66775
Remote Config [baseline] (631.243 µs) : 0, 631
Remote Config [candidate] (631.598 µs) : 0, 632
Telemetry [baseline] (9.144 ms) : 0, 9144
Telemetry [candidate] (8.408 ms) : 0, 8408
Flare Poller [baseline] (3.605 ms) : 0, 3605
Flare Poller [candidate] (3.642 ms) : 0, 3642
section iast
crashtracking [baseline] (1.205 ms) : 0, 1205
crashtracking [candidate] (1.237 ms) : 0, 1237
BytebuddyAgent [baseline] (794.86 ms) : 0, 794860
BytebuddyAgent [candidate] (796.746 ms) : 0, 796746
AgentMeter [baseline] (11.4 ms) : 0, 11400
AgentMeter [candidate] (11.365 ms) : 0, 11365
GlobalTracer [baseline] (247.529 ms) : 0, 247529
GlobalTracer [candidate] (247.584 ms) : 0, 247584
IAST [baseline] (25.409 ms) : 0, 25409
IAST [candidate] (25.605 ms) : 0, 25605
AppSec [baseline] (26.588 ms) : 0, 26588
AppSec [candidate] (28.431 ms) : 0, 28431
Debugger [baseline] (67.924 ms) : 0, 67924
Debugger [candidate] (64.196 ms) : 0, 64196
Remote Config [baseline] (521.718 µs) : 0, 522
Remote Config [candidate] (519.542 µs) : 0, 520
Telemetry [baseline] (11.337 ms) : 0, 11337
Telemetry [candidate] (13.575 ms) : 0, 13575
Flare Poller [baseline] (3.936 ms) : 0, 3936
Flare Poller [candidate] (4.244 ms) : 0, 4244
section profiling
crashtracking [baseline] (1.17 ms) : 0, 1170
crashtracking [candidate] (1.17 ms) : 0, 1170
BytebuddyAgent [baseline] (681.951 ms) : 0, 681951
BytebuddyAgent [candidate] (681.572 ms) : 0, 681572
AgentMeter [baseline] (8.993 ms) : 0, 8993
AgentMeter [candidate] (8.962 ms) : 0, 8962
GlobalTracer [baseline] (215.528 ms) : 0, 215528
GlobalTracer [candidate] (215.123 ms) : 0, 215123
AppSec [baseline] (32.115 ms) : 0, 32115
AppSec [candidate] (32.103 ms) : 0, 32103
Debugger [baseline] (64.938 ms) : 0, 64938
Debugger [candidate] (64.832 ms) : 0, 64832
Remote Config [baseline] (559.416 µs) : 0, 559
Remote Config [candidate] (556.469 µs) : 0, 556
Telemetry [baseline] (8.508 ms) : 0, 8508
Telemetry [candidate] (8.419 ms) : 0, 8419
Flare Poller [baseline] (3.45 ms) : 0, 3450
Flare Poller [candidate] (3.425 ms) : 0, 3425
ProfilingAgent [baseline] (93.268 ms) : 0, 93268
ProfilingAgent [candidate] (93.903 ms) : 0, 93903
Profiling [baseline] (93.819 ms) : 0, 93819
Profiling [candidate] (94.464 ms) : 0, 94464
Loading
Startup time reports for insecure-bank
gantt
title insecure-bank - global startup overhead: candidate=1.61.0-SNAPSHOT~d2515d7dd9, baseline=1.61.0-SNAPSHOT~c00f676bb9
dateFormat X
axisFormat %s
section tracing
Agent [baseline] (1.054 s) : 0, 1054159
Total [baseline] (8.857 s) : 0, 8857190
Agent [candidate] (1.053 s) : 0, 1053315
Total [candidate] (8.798 s) : 0, 8797690
section iast
Agent [baseline] (1.224 s) : 0, 1223828
Total [baseline] (9.537 s) : 0, 9537391
Agent [candidate] (1.224 s) : 0, 1224019
Total [candidate] (9.538 s) : 0, 9538437
Loading
  • baseline results
ModuleVariantDurationΔ tracing
Agenttracing1.054 s-
Agentiast1.224 s169.669 ms (16.1%)
Totaltracing8.857 s-
Totaliast9.537 s680.202 ms (7.7%)
  • candidate results
ModuleVariantDurationΔ tracing
Agenttracing1.053 s-
Agentiast1.224 s170.704 ms (16.2%)
Totaltracing8.798 s-
Totaliast9.538 s740.748 ms (8.4%)
gantt
title insecure-bank - break down per module: candidate=1.61.0-SNAPSHOT~d2515d7dd9, baseline=1.61.0-SNAPSHOT~c00f676bb9
dateFormat X
axisFormat %s
section tracing
crashtracking [baseline] (1.208 ms) : 0, 1208
crashtracking [candidate] (1.209 ms) : 0, 1209
BytebuddyAgent [baseline] (627.847 ms) : 0, 627847
BytebuddyAgent [candidate] (626.305 ms) : 0, 626305
AgentMeter [baseline] (29.444 ms) : 0, 29444
AgentMeter [candidate] (29.351 ms) : 0, 29351
GlobalTracer [baseline] (256.307 ms) : 0, 256307
GlobalTracer [candidate] (256.143 ms) : 0, 256143
AppSec [baseline] (31.696 ms) : 0, 31696
AppSec [candidate] (31.546 ms) : 0, 31546
Debugger [baseline] (59.626 ms) : 0, 59626
Debugger [candidate] (59.275 ms) : 0, 59275
Remote Config [baseline] (582.83 µs) : 0, 583
Remote Config [candidate] (581.187 µs) : 0, 581
Telemetry [baseline] (8.0 ms) : 0, 8000
Telemetry [candidate] (7.977 ms) : 0, 7977
Flare Poller [baseline] (3.515 ms) : 0, 3515
Flare Poller [candidate] (5.01 ms) : 0, 5010
section iast
crashtracking [baseline] (1.211 ms) : 0, 1211
crashtracking [candidate] (1.209 ms) : 0, 1209
BytebuddyAgent [baseline] (794.263 ms) : 0, 794263
BytebuddyAgent [candidate] (794.123 ms) : 0, 794123
AgentMeter [baseline] (11.335 ms) : 0, 11335
AgentMeter [candidate] (11.318 ms) : 0, 11318
GlobalTracer [baseline] (246.641 ms) : 0, 246641
GlobalTracer [candidate] (246.81 ms) : 0, 246810
IAST [baseline] (25.353 ms) : 0, 25353
IAST [candidate] (25.306 ms) : 0, 25306
AppSec [baseline] (26.447 ms) : 0, 26447
AppSec [candidate] (26.503 ms) : 0, 26503
Debugger [baseline] (65.5 ms) : 0, 65500
Debugger [candidate] (63.863 ms) : 0, 63863
Remote Config [baseline] (513.067 µs) : 0, 513
Remote Config [candidate] (519.025 µs) : 0, 519
Telemetry [baseline] (12.286 ms) : 0, 12286
Telemetry [candidate] (13.704 ms) : 0, 13704
Flare Poller [baseline] (4.243 ms) : 0, 4243
Flare Poller [candidate] (4.681 ms) : 0, 4681
Loading

Load

Parameters

BaselineCandidate
baseline_or_candidatebaselinecandidate
git_branchmasterapm-ai-toolkit/java_integration/commons-httpclient/20260323-115140
git_commit_date17740500141774284791
git_commit_shac00f676d2515d7
release_version1.61.0-SNAPSHOT~c00f676bb91.61.0-SNAPSHOT~d2515d7dd9
See matching parameters
BaselineCandidate
applicationinsecure-bankinsecure-bank
ci_job_date17742870651774287065
ci_job_id15313155841531315584
ci_pipeline_id104030887104030887
cpu_modelIntel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHzIntel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_versionLinux runner-zfyrx7zua-project-304-concurrent-2-lhw6narg 6.8.0-1031-aws #33~22.04.1-Ubuntu SMP Thu Jun 26 14:22:30 UTC 2025 x86_64 x86_64 x86_64 GNU/LinuxLinux runner-zfyrx7zua-project-304-concurrent-2-lhw6narg 6.8.0-1031-aws #33~22.04.1-Ubuntu SMP Thu Jun 26 14:22:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

Summary

Found 1 performance improvements and 1 performance regressions! Performance is the same for 18 metrics, 16 unstable metrics.

scenarioΔ mean agg_http_req_duration_p50Δ mean agg_http_req_duration_p95Δ mean throughputcandidate mean agg_http_req_duration_p50candidate mean agg_http_req_duration_p95candidate mean throughputbaseline mean agg_http_req_duration_p50baseline mean agg_http_req_duration_p95baseline mean throughput
scenario:load:petclinic:tracing:high_loadworse
[+0.675ms; +1.439ms] or [+3.927%; +8.366%]
unsure
[+167.830µs; +1645.406µs] or [+0.590%; +5.780%]
unstable
[-38.245op/s; +14.183op/s] or [-14.448%; +5.358%]
18.258ms29.376ms252.688op/s17.201ms28.470ms264.719op/s
scenario:load:petclinic:profiling:high_loadbetter
[-1.586ms; -0.490ms] or [-8.168%; -2.523%]
unsure
[-1.944ms; -0.160ms] or [-6.335%; -0.522%]
unstable
[-13.607op/s; +36.607op/s] or [-5.715%; +15.375%]
18.383ms29.634ms249.594op/s19.421ms30.686ms238.094op/s
Request duration reports for petclinic
gantt
title petclinic - request duration [CI 0.99] : candidate=1.61.0-SNAPSHOT~d2515d7dd9, baseline=1.61.0-SNAPSHOT~c00f676bb9
dateFormat X
axisFormat %s
section baseline
no_agent (19.248 ms) : 19047, 19448
. : milestone, 19248,
appsec (18.708 ms) : 18516, 18900
. : milestone, 18708,
code_origins (17.701 ms) : 17525, 17876
. : milestone, 17701,
iast (18.067 ms) : 17887, 18247
. : milestone, 18067,
profiling (19.61 ms) : 19411, 19808
. : milestone, 19610,
tracing (17.624 ms) : 17447, 17802
. : milestone, 17624,
section candidate
no_agent (18.34 ms) : 18154, 18526
. : milestone, 18340,
appsec (18.906 ms) : 18711, 19102
. : milestone, 18906,
code_origins (17.62 ms) : 17444, 17795
. : milestone, 17620,
iast (17.705 ms) : 17529, 17881
. : milestone, 17705,
profiling (18.698 ms) : 18512, 18883
. : milestone, 18698,
tracing (18.469 ms) : 18285, 18653
. : milestone, 18469,
Loading
  • baseline results
VariantRequest duration [CI 0.99]Δ no_agent
no_agent19.248 ms [19.047 ms, 19.448 ms]-
appsec18.708 ms [18.516 ms, 18.9 ms]-539.74 µs (-2.8%)
code_origins17.701 ms [17.525 ms, 17.876 ms]-1.547 ms (-8.0%)
iast18.067 ms [17.887 ms, 18.247 ms]-1.18 ms (-6.1%)
profiling19.61 ms [19.411 ms, 19.808 ms]362.043 µs (1.9%)
tracing17.624 ms [17.447 ms, 17.802 ms]-1.623 ms (-8.4%)
  • candidate results
VariantRequest duration [CI 0.99]Δ no_agent
no_agent18.34 ms [18.154 ms, 18.526 ms]-
appsec18.906 ms [18.711 ms, 19.102 ms]566.402 µs (3.1%)
code_origins17.62 ms [17.444 ms, 17.795 ms]-720.182 µs (-3.9%)
iast17.705 ms [17.529 ms, 17.881 ms]-635.061 µs (-3.5%)
profiling18.698 ms [18.512 ms, 18.883 ms]357.885 µs (2.0%)
tracing18.469 ms [18.285 ms, 18.653 ms]129.347 µs (0.7%)
Request duration reports for insecure-bank
gantt
title insecure-bank - request duration [CI 0.99] : candidate=1.61.0-SNAPSHOT~d2515d7dd9, baseline=1.61.0-SNAPSHOT~c00f676bb9
dateFormat X
axisFormat %s
section baseline
no_agent (1.201 ms) : 1189, 1213
. : milestone, 1201,
iast (3.194 ms) : 3151, 3237
. : milestone, 3194,
iast_FULL (5.725 ms) : 5668, 5781
. : milestone, 5725,
iast_GLOBAL (3.603 ms) : 3543, 3662
. : milestone, 3603,
profiling (2.188 ms) : 2168, 2207
. : milestone, 2188,
tracing (1.8 ms) : 1785, 1815
. : milestone, 1800,
section candidate
no_agent (1.164 ms) : 1153, 1176
. : milestone, 1164,
iast (3.195 ms) : 3153, 3237
. : milestone, 3195,
iast_FULL (5.848 ms) : 5790, 5907
. : milestone, 5848,
iast_GLOBAL (3.574 ms) : 3521, 3626
. : milestone, 3574,
profiling (2.248 ms) : 2227, 2269
. : milestone, 2248,
tracing (1.755 ms) : 1742, 1769
. : milestone, 1755,
Loading
  • baseline results
VariantRequest duration [CI 0.99]Δ no_agent
no_agent1.201 ms [1.189 ms, 1.213 ms]-
iast3.194 ms [3.151 ms, 3.237 ms]1.993 ms (166.0%)
iast_FULL5.725 ms [5.668 ms, 5.781 ms]4.524 ms (376.7%)
iast_GLOBAL3.603 ms [3.543 ms, 3.662 ms]2.402 ms (200.0%)
profiling2.188 ms [2.168 ms, 2.207 ms]986.927 µs (82.2%)
tracing1.8 ms [1.785 ms, 1.815 ms]599.39 µs (49.9%)
  • candidate results
VariantRequest duration [CI 0.99]Δ no_agent
no_agent1.164 ms [1.153 ms, 1.176 ms]-
iast3.195 ms [3.153 ms, 3.237 ms]2.03 ms (174.4%)
iast_FULL5.848 ms [5.79 ms, 5.907 ms]4.684 ms (402.2%)
iast_GLOBAL3.574 ms [3.521 ms, 3.626 ms]2.409 ms (206.9%)
profiling2.248 ms [2.227 ms, 2.269 ms]1.084 ms (93.1%)
tracing1.755 ms [1.742 ms, 1.769 ms]590.842 µs (50.7%)

Dacapo

Parameters

BaselineCandidate
baseline_or_candidatebaselinecandidate
git_branchmasterapm-ai-toolkit/java_integration/commons-httpclient/20260323-115140
git_commit_date17740500141774284791
git_commit_shac00f676d2515d7
release_version1.61.0-SNAPSHOT~c00f676bb91.61.0-SNAPSHOT~d2515d7dd9
See matching parameters
BaselineCandidate
applicationbiojavabiojava
ci_job_date17742868621774286862
ci_job_id15313155881531315588
ci_pipeline_id104030887104030887
cpu_modelIntel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHzIntel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_versionLinux runner-zfyrx7zua-project-304-concurrent-1-73gnx0zx 6.8.0-1031-aws #33~22.04.1-Ubuntu SMP Thu Jun 26 14:22:30 UTC 2025 x86_64 x86_64 x86_64 GNU/LinuxLinux runner-zfyrx7zua-project-304-concurrent-1-73gnx0zx 6.8.0-1031-aws #33~22.04.1-Ubuntu SMP Thu Jun 26 14:22:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 11 metrics, 1 unstable metrics.

Execution time for tomcat
gantt
title tomcat - execution time [CI 0.99] : candidate=1.61.0-SNAPSHOT~d2515d7dd9, baseline=1.61.0-SNAPSHOT~c00f676bb9
dateFormat X
axisFormat %s
section baseline
no_agent (1.482 ms) : 1470, 1493
. : milestone, 1482,
appsec (3.819 ms) : 3600, 4038
. : milestone, 3819,
iast (2.271 ms) : 2201, 2341
. : milestone, 2271,
iast_GLOBAL (2.301 ms) : 2232, 2370
. : milestone, 2301,
profiling (2.083 ms) : 2028, 2138
. : milestone, 2083,
tracing (2.069 ms) : 2015, 2122
. : milestone, 2069,
section candidate
no_agent (1.476 ms) : 1464, 1487
. : milestone, 1476,
appsec (3.758 ms) : 3541, 3974
. : milestone, 3758,
iast (2.261 ms) : 2192, 2330
. : milestone, 2261,
iast_GLOBAL (2.318 ms) : 2248, 2388
. : milestone, 2318,
profiling (2.124 ms) : 2068, 2181
. : milestone, 2124,
tracing (2.078 ms) : 2024, 2131
. : milestone, 2078,
Loading
  • baseline results
VariantExecution Time [CI 0.99]Δ no_agent
no_agent1.482 ms [1.47 ms, 1.493 ms]-
appsec3.819 ms [3.6 ms, 4.038 ms]2.337 ms (157.7%)
iast2.271 ms [2.201 ms, 2.341 ms]789.263 µs (53.3%)
iast_GLOBAL2.301 ms [2.232 ms, 2.37 ms]819.336 µs (55.3%)
profiling2.083 ms [2.028 ms, 2.138 ms]600.933 µs (40.6%)
tracing2.069 ms [2.015 ms, 2.122 ms]586.942 µs (39.6%)
  • candidate results
VariantExecution Time [CI 0.99]Δ no_agent
no_agent1.476 ms [1.464 ms, 1.487 ms]-
appsec3.758 ms [3.541 ms, 3.974 ms]2.282 ms (154.7%)
iast2.261 ms [2.192 ms, 2.33 ms]785.412 µs (53.2%)
iast_GLOBAL2.318 ms [2.248 ms, 2.388 ms]842.143 µs (57.1%)
profiling2.124 ms [2.068 ms, 2.181 ms]648.532 µs (44.0%)
tracing2.078 ms [2.024 ms, 2.131 ms]601.971 µs (40.8%)
Execution time for biojava
gantt
title biojava - execution time [CI 0.99] : candidate=1.61.0-SNAPSHOT~d2515d7dd9, baseline=1.61.0-SNAPSHOT~c00f676bb9
dateFormat X
axisFormat %s
section baseline
no_agent (14.96 s) : 14960000, 14960000
. : milestone, 14960000,
appsec (14.824 s) : 14824000, 14824000
. : milestone, 14824000,
iast (18.588 s) : 18588000, 18588000
. : milestone, 18588000,
iast_GLOBAL (18.085 s) : 18085000, 18085000
. : milestone, 18085000,
profiling (15.018 s) : 15018000, 15018000
. : milestone, 15018000,
tracing (15.029 s) : 15029000, 15029000
. : milestone, 15029000,
section candidate
no_agent (14.883 s) : 14883000, 14883000
. : milestone, 14883000,
appsec (14.696 s) : 14696000, 14696000
. : milestone, 14696000,
iast (18.489 s) : 18489000, 18489000
. : milestone, 18489000,
iast_GLOBAL (18.063 s) : 18063000, 18063000
. : milestone, 18063000,
profiling (14.867 s) : 14867000, 14867000
. : milestone, 14867000,
tracing (14.72 s) : 14720000, 14720000
. : milestone, 14720000,
Loading
  • baseline results
VariantExecution Time [CI 0.99]Δ no_agent
no_agent14.96 s [14.96 s, 14.96 s]-
appsec14.824 s [14.824 s, 14.824 s]-136.0 ms (-0.9%)
iast18.588 s [18.588 s, 18.588 s]3.628 s (24.3%)
iast_GLOBAL18.085 s [18.085 s, 18.085 s]3.125 s (20.9%)
profiling15.018 s [15.018 s, 15.018 s]58.0 ms (0.4%)
tracing15.029 s [15.029 s, 15.029 s]69.0 ms (0.5%)
  • candidate results
VariantExecution Time [CI 0.99]Δ no_agent
no_agent14.883 s [14.883 s, 14.883 s]-
appsec14.696 s [14.696 s, 14.696 s]-187.0 ms (-1.3%)
iast18.489 s [18.489 s, 18.489 s]3.606 s (24.2%)
iast_GLOBAL18.063 s [18.063 s, 18.063 s]3.18 s (21.4%)
profiling14.867 s [14.867 s, 14.867 s]-16.0 ms (-0.1%)
tracing14.72 s [14.72 s, 14.72 s]-163.0 ms (-1.1%)

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LP review for AI generated instrumentation:

The more I read about it, the less I understand what was done.
Why the original one in commons-httpclient-2.0 seem edited while there is a new one in commons-httpclient/common-httpclient-2.0 that duplicates everything, instrumentation, helpers, tests? How did the toolkit ended up with such things?

Comment on lines +47 to +50
// HttpClient has multiple executeMethod overloads
// executeMethod(HttpMethod method)
// executeMethod(HostConfiguration hostConfiguration, HttpMethod method)
// executeMethod(HostConfiguration hostConfiguration, HttpMethod method, HttpState state)

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🔨 issue: ‏This seems wrong. The overloads delegate to a single method (that's usually the case).
So the instrumentation can limit to instrument this method only and would might not need to use the call depth check.

}

public static class ExecAdvice {
public static class ExecuteMethodAdvice {

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❔ question: ‏How is this advice not called multiple times for a single request? This seems wrong 🤔

return;
}

DECORATE.injectContext(getCurrentContext(), method, SETTER);

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❔ question: ‏Similarly, it seems to be injected multiple time, which is expensive.

versions = "[2.0,]"
skipVersions += "20020423" // ancient pre-release version
skipVersions += '2.0-final' // broken metadata on maven central
versions = "[2.0,4.0)"

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❔ question: ‏Do you know it excluded version 4?

testImplementation group: 'commons-httpclient', name: 'commons-httpclient', version: '2.0'

latestDepTestImplementation group: 'commons-httpclient', name: 'commons-httpclient', version: '(2.0,20000000]'
latestDepTestImplementation group: 'commons-httpclient', name: 'commons-httpclient', version: '3.+'

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🔨 issue: ‏This seems wrong. It should be 2+

protected URI url(final HttpMethod httpMethod) throws URISyntaxException {
try {
// commons-httpclient uses getURI() which returns a URI object
return URIUtils.safeParse(httpMethod.getURI().toString());

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💭 thought: ‏Interesting use of safeParse()

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This pull request has been marked as stale because it has not had activity over the past quarter. It will be closed in 7 days if no further activity occurs. Feel free to reopen the PR if you are still working on it.

@github-actionsgithub-actionsBot added the tag: stale Stale pull requests label Jul 1, 2026
@PerfectSlayerPerfectSlayer added the tag: apm integration toolkit Changes generated by DataDog/apm-instrumentation-toolkit as part of IDM AIT experimentation label Jul 1, 2026
gh-worker-dd-mergequeue-cf854dBot pushed a commit that referenced this pull request Jul 16, 2026
…R reviews (#11927)
skill(apm-integrations): HTTP client follow-up rules from PR reviews
Five rules distilled from HTTP-client and HTTP-server PR reviews
(feign #11709, commons-httpclient #11717, sparkjava #11708) that were
NOT covered by the R13-R33 additions in #11760.
- advice-class.md: async double-span (do not wrap an async client with
advice when the sync delegate is already instrumented; produces two
spans per request). Source: @ValentinZakharov on PR #11709.
- advice-class.md: HelperMethods refactor anti-pattern (do not extract
advice logic into a per-instrumentation helper class just to shorten
the advice body — inline unless genuinely shared). Source: @ygree on
PR #11717.
- instrumenter-module.md: regeneration must preserve every override the
master version has — not just super(...), but also defaultEnabled(),
helperClassNames(), contextStore(), orderPriority(), etc. Source:
Codex reviews on PRs #11709 and #11708 (recurring pattern).
- instrumenter-module.md: scan dd-java-agent/instrumentation/$framework/
before generating; do not create parallel duplicate modules. Source:
@PerfectSlayer's historical review on #10941, still an unencoded gap.
- muzzle.md: base testImplementation dep version must match the module's
declared minimum, not the latest — extends the existing latestDep
parity rule to base tests. Source: @PerfectSlayer on PR #11708.
3 files, +44 lines. No changes to existing rules.
Reviewers: @mcculls (skill hygiene, reviewed #11760), @PerfectSlayer
(HTTP domain, contributed rules from #10941 + #11708).
skill(apm-integrations): additional rules from HTTP feedback audit
Adds 9 rules across 5 files based on extended audit of PR #11708 (sparkjava),
PR #11709 (feign), and the sparkjava CI-fix commit history:
- context-tracking: CompletableFuture cancellation preservation (codex, #11709)
- advice-class: framework-inside-framework span identity (codex, #11708)
- advice-class: no non-constant static fields in advice (CI-fix commit f6d1263)
- tests: 5 test-hygiene rules (PerfectSlayer, #11708) — no Thread.sleep, static
server field, shared test bases, ForkedTest justification, no default jvmArgs
- supported-configurations: registry type correctness (CI-fix commits 53836a0, 48a84c0)
- instrumenter-module: helperClassNames() for enrichment helpers (CI-fix commit 2c372a3)
skill(apm-integrations): condition super(...) naming on sibling structure
Reconciles two conflicting maintainer positions on the constructor pattern:
- Stuart McCulloch (PR #11760 comment 3552616459) — new instrumentations
should adopt the version-alias pattern
- Valentin Zakharov (PR #11709 comment 3532152120) — single-module frameworks
should pass one name; extra names mint DD_TRACE_<NAME>_ENABLED flags with
no counterpart to gate against
The empirical convention in dd-trace-java confirms Valentin's rule for
single-module frameworks (feign, freemarker, liberty, sparkjava all pass one
name; freemarker and liberty do so even with real version siblings) and
McCulloch's rule for frameworks with real sibling versions (okhttp shipping
okhttp-2.0 and okhttp-3.0 with a shared 'okhttp' group flag).
Also fixes the previous jedis example which claimed 'jedis-3.0' alias but
the shipping jedis-3.0 module actually passes super("jedis", "redis").
skill(apm-integrations): address Copilot review comments on #11927
7 findings, all verified against master:
- tests.md: waitForTraces(N) waits for >=N (not exactly N) with 20s
bounded timeout per ListWriter.java
- supported-configurations.md: fix internal contradiction — registry
uses "decimal" (rates) and "int" (counts), NOT "double"/"integer"
(matches canonical guidance earlier in same doc, line 52)
- instrumenter-module.md: replace non-existent super("feign") example
with freemarker (real, verifiable); replace misleading single-name
list with an accurate one; add sparkjava-2.3 counter-example
explaining why super("sparkjava","sparkjava-2.4") uses the -2.4
alias despite living in the -2.3/ directory (compile against 2.3,
test against 2.4 for JettyHandler)
- muzzle.md: reframe testImplementation=min as default preference,
not absolute rule; document justified deviation with sparkjava-2.3
build.gradle as the canonical example
- context-tracking.md: reframe CompletableFuture pattern to emphasize
that the correct (non-reassigning) pattern does NOT require
@Advice.Return(readOnly=false); only add readOnly=false if you
have a documented reason to substitute the return value
- advice-class.md: S1 framework-in-framework example now includes
the null-check on activeSpan(), matching sparkjava's
RoutesInstrumentation.java:52-55 (withRoute() does not guard)
Copilot's citations were checked against master before applying.
skill(apm-integrations): scrub audit-trail phrasing from shipping content
- Reword "regenerating an existing module" as "rewriting or refactoring" —
the guidance applies whenever an existing module is being changed, not
just to automated regeneration flows.
- Remove the "Rationale traceable to reviewer comments (PR/comment IDs)"
footnote. That attribution belongs in commit messages and PR descriptions,
not in the shipping skill; readers of the skill just need the rule.
skill(apm-integrations): address second-round Codex review comments
Four findings, all P2, all verified against master:
- advice-class.md (framework-in-framework): narrow the rule to route-only
enrichers (SparkJava). JAX-RS annotations and Ratpack legitimately create
handler/controller spans in addition to the outer server span
(jax-rs-annotations-2.0/JaxRsAnnotationsInstrumentation.java:128;
ratpack-1.5/TracingHandler.java:41). Original blanket wording would
cause future JAX-RS/Ratpack instrumentation to drop expected child spans.
- advice-class.md (async wrapper): completion-only propagation is not
enough when the sync delegate runs on a worker thread — the sync
client's advice creates its span BEFORE the future completes. Document
the two supported approaches: (1) rely on executor instrumentation,
or (2) reactivate around the delegate submission via a shared wrapper.
Reference java-concurrent-1.8's existing patterns.
- context-tracking.md (CompletableFuture): the CORRECT example was
itself wrong on two counts caught by Codex:
(a) missing onThrowable = Throwable.class means the exit advice
skips when the instrumented method throws before returning
the future — any span started on enter would leak
(b) used a lambda body, which the "no lambdas in advice methods"
rule in advice-class.md:111 explicitly forbids — lambdas
compile to synthetic classes that are not helper-injected
Rewrite the CORRECT example with @Advice.Thrown handling, a named
BiConsumer helper (ClientCompletionCallback) instead of a lambda,
and helperClassNames() implications.
skill(apm-integrations): address mcculls review on instrumenter-module.md
Merge branch 'master' into feat/skill-http-followup-rules
Merge branch 'master' into feat/skill-http-followup-rules
Co-authored-by: sarah.chen <sarah.chen@datadoghq.com>
@github-actionsgithub-actionsBot removed the tag: stale Stale pull requests label Aug 1, 2026
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@jordan-wong@PerfectSlayer