Inferred Proxy Improvements #8784

jordan-wong · 2025-05-07T18:30:08Z

What Does This Do

Minor additional follow up changes for #8336

Remove unused header parsing method stub Implement APIGW Inferred Proxy Spans #8336 (review)
add capacity to the hashmap for InferredProxyContext following up from https://github.com/DataDog/dd-trace-java/pull/8336/files#r2076031132

Motivation

Additional Notes

Contributor Checklist

Format the title according the contribution guidelines
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Use solves instead, and assign the PR milestone to the issue
Update the public documentation in case of new configuration flag or behavior

Jira ticket: [PROJ-IDENT]

github-actions · 2025-05-07T18:30:22Z

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pr-commenter · 2025-05-07T19:21:05Z

Benchmarks

Startup

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	inferred-proxy-improvements
git_commit_date	1746692171	1746730344
git_commit_sha	`d5d53cd`	`457db92`
release_version	1.50.0-SNAPSHOT~d5d53cd553	1.50.0-SNAPSHOT~457db927ac

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1746733410	1746733410
ci_job_id	930391627	930391627
ci_pipeline_id	64567880	64567880
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_version	Linux runner-psrqmy6d-project-304-concurrent-2-j3stj98w 6.8.0-1027-aws #29~22.04.1-Ubuntu SMP Sun Mar 30 07:45:38 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux	Linux runner-psrqmy6d-project-304-concurrent-2-j3stj98w 6.8.0-1027-aws #29~22.04.1-Ubuntu SMP Sun Mar 30 07:45:38 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
module	Agent	Agent
parent	None	None
variant	iast	iast

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 57 metrics, 14 unstable metrics.

Startup time reports for insecure-bank

gantt
    title insecure-bank - global startup overhead: candidate=1.50.0-SNAPSHOT~457db927ac, baseline=1.50.0-SNAPSHOT~d5d53cd553

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.031 s) : 0, 1031235
Total [baseline] (8.696 s) : 0, 8695612
Agent [candidate] (1.02 s) : 0, 1020334
Total [candidate] (8.651 s) : 0, 8650920
section iast
Agent [baseline] (1.152 s) : 0, 1152457
Total [baseline] (9.265 s) : 0, 9265105
Agent [candidate] (1.15 s) : 0, 1150185
Total [candidate] (9.26 s) : 0, 9259706
section iast_HARDCODED_SECRET_DISABLED
Agent [baseline] (1.15 s) : 0, 1149509
Total [baseline] (9.233 s) : 0, 9233156
Agent [candidate] (1.15 s) : 0, 1150182
Total [candidate] (9.243 s) : 0, 9243431
section iast_TELEMETRY_OFF
Agent [baseline] (1.151 s) : 0, 1151087
Total [baseline] (9.232 s) : 0, 9232105
Agent [candidate] (1.153 s) : 0, 1152707
Total [candidate] (9.302 s) : 0, 9302395

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.031 s	-
Agent	iast	1.152 s	121.223 ms (11.8%)
Agent	iast_HARDCODED_SECRET_DISABLED	1.15 s	118.274 ms (11.5%)
Agent	iast_TELEMETRY_OFF	1.151 s	119.853 ms (11.6%)
Total	tracing	8.696 s	-
Total	iast	9.265 s	569.494 ms (6.5%)
Total	iast_HARDCODED_SECRET_DISABLED	9.233 s	537.544 ms (6.2%)
Total	iast_TELEMETRY_OFF	9.232 s	536.493 ms (6.2%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.02 s	-
Agent	iast	1.15 s	129.851 ms (12.7%)
Agent	iast_HARDCODED_SECRET_DISABLED	1.15 s	129.849 ms (12.7%)
Agent	iast_TELEMETRY_OFF	1.153 s	132.373 ms (13.0%)
Total	tracing	8.651 s	-
Total	iast	9.26 s	608.785 ms (7.0%)
Total	iast_HARDCODED_SECRET_DISABLED	9.243 s	592.511 ms (6.8%)
Total	iast_TELEMETRY_OFF	9.302 s	651.474 ms (7.5%)

gantt
    title insecure-bank - break down per module: candidate=1.50.0-SNAPSHOT~457db927ac, baseline=1.50.0-SNAPSHOT~d5d53cd553

    dateFormat X
    axisFormat %s
section tracing
BytebuddyAgent [baseline] (690.981 ms) : 0, 690981
BytebuddyAgent [candidate] (681.064 ms) : 0, 681064
GlobalTracer [baseline] (241.973 ms) : 0, 241973
GlobalTracer [candidate] (239.73 ms) : 0, 239730
AppSec [baseline] (55.508 ms) : 0, 55508
AppSec [candidate] (54.338 ms) : 0, 54338
Debugger [baseline] (7.621 ms) : 0, 7621
Debugger [candidate] (10.49 ms) : 0, 10490
Remote Config [baseline] (694.4 µs) : 0, 694
Remote Config [candidate] (673.347 µs) : 0, 673
Telemetry [baseline] (10.601 ms) : 0, 10601
Telemetry [candidate] (10.46 ms) : 0, 10460
section iast
BytebuddyAgent [baseline] (805.362 ms) : 0, 805362
BytebuddyAgent [candidate] (802.299 ms) : 0, 802299
GlobalTracer [baseline] (230.959 ms) : 0, 230959
GlobalTracer [candidate] (231.655 ms) : 0, 231655
IAST [baseline] (29.101 ms) : 0, 29101
IAST [candidate] (28.408 ms) : 0, 28408
AppSec [baseline] (48.556 ms) : 0, 48556
AppSec [candidate] (48.447 ms) : 0, 48447
Debugger [baseline] (5.847 ms) : 0, 5847
Debugger [candidate] (5.901 ms) : 0, 5901
Remote Config [baseline] (591.58 µs) : 0, 592
Remote Config [candidate] (594.784 µs) : 0, 595
Telemetry [baseline] (7.829 ms) : 0, 7829
Telemetry [candidate] (7.882 ms) : 0, 7882
section iast_HARDCODED_SECRET_DISABLED
BytebuddyAgent [baseline] (801.937 ms) : 0, 801937
BytebuddyAgent [candidate] (802.249 ms) : 0, 802249
GlobalTracer [baseline] (230.807 ms) : 0, 230807
GlobalTracer [candidate] (230.941 ms) : 0, 230941
IAST [baseline] (28.4 ms) : 0, 28400
IAST [candidate] (29.208 ms) : 0, 29208
AppSec [baseline] (50.332 ms) : 0, 50332
AppSec [candidate] (49.774 ms) : 0, 49774
Debugger [baseline] (5.94 ms) : 0, 5940
Debugger [candidate] (5.977 ms) : 0, 5977
Remote Config [baseline] (596.476 µs) : 0, 596
Remote Config [candidate] (601.434 µs) : 0, 601
Telemetry [baseline] (7.911 ms) : 0, 7911
Telemetry [candidate] (7.918 ms) : 0, 7918
section iast_TELEMETRY_OFF
BytebuddyAgent [baseline] (803.696 ms) : 0, 803696
BytebuddyAgent [candidate] (804.868 ms) : 0, 804868
GlobalTracer [baseline] (231.478 ms) : 0, 231478
GlobalTracer [candidate] (231.923 ms) : 0, 231923
IAST [baseline] (23.821 ms) : 0, 23821
IAST [candidate] (22.385 ms) : 0, 22385
AppSec [baseline] (54.091 ms) : 0, 54091
AppSec [candidate] (55.541 ms) : 0, 55541
Debugger [baseline] (5.96 ms) : 0, 5960
Debugger [candidate] (5.939 ms) : 0, 5939
Remote Config [baseline] (612.366 µs) : 0, 612
Remote Config [candidate] (598.494 µs) : 0, 598
Telemetry [baseline] (7.799 ms) : 0, 7799
Telemetry [candidate] (7.761 ms) : 0, 7761

Startup time reports for petclinic

gantt
    title petclinic - global startup overhead: candidate=1.50.0-SNAPSHOT~457db927ac, baseline=1.50.0-SNAPSHOT~d5d53cd553

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.026 s) : 0, 1026058
Total [baseline] (10.523 s) : 0, 10523305
Agent [candidate] (1.021 s) : 0, 1021003
Total [candidate] (10.554 s) : 0, 10554423
section appsec
Agent [baseline] (1.16 s) : 0, 1160305
Total [baseline] (10.736 s) : 0, 10736347
Agent [candidate] (1.164 s) : 0, 1164302
Total [candidate] (10.732 s) : 0, 10731902
section iast
Agent [baseline] (1.146 s) : 0, 1146124
Total [baseline] (10.935 s) : 0, 10935486
Agent [candidate] (1.149 s) : 0, 1148780
Total [candidate] (10.931 s) : 0, 10930515
section profiling
Agent [baseline] (1.282 s) : 0, 1281692
Total [baseline] (10.857 s) : 0, 10857361
Agent [candidate] (1.277 s) : 0, 1276928
Total [candidate] (10.829 s) : 0, 10828886

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.026 s	-
Agent	appsec	1.16 s	134.247 ms (13.1%)
Agent	iast	1.146 s	120.066 ms (11.7%)
Agent	profiling	1.282 s	255.634 ms (24.9%)
Total	tracing	10.523 s	-
Total	appsec	10.736 s	213.042 ms (2.0%)
Total	iast	10.935 s	412.18 ms (3.9%)
Total	profiling	10.857 s	334.056 ms (3.2%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.021 s	-
Agent	appsec	1.164 s	143.298 ms (14.0%)
Agent	iast	1.149 s	127.777 ms (12.5%)
Agent	profiling	1.277 s	255.925 ms (25.1%)
Total	tracing	10.554 s	-
Total	appsec	10.732 s	177.478 ms (1.7%)
Total	iast	10.931 s	376.091 ms (3.6%)
Total	profiling	10.829 s	274.463 ms (2.6%)

gantt
    title petclinic - break down per module: candidate=1.50.0-SNAPSHOT~457db927ac, baseline=1.50.0-SNAPSHOT~d5d53cd553

    dateFormat X
    axisFormat %s
section tracing
BytebuddyAgent [baseline] (687.027 ms) : 0, 687027
BytebuddyAgent [candidate] (683.448 ms) : 0, 683448
GlobalTracer [baseline] (240.352 ms) : 0, 240352
GlobalTracer [candidate] (240.339 ms) : 0, 240339
AppSec [baseline] (56.01 ms) : 0, 56010
AppSec [candidate] (54.498 ms) : 0, 54498
Debugger [baseline] (7.651 ms) : 0, 7651
Debugger [candidate] (7.856 ms) : 0, 7856
Remote Config [baseline] (688.035 µs) : 0, 688
Remote Config [candidate] (705.505 µs) : 0, 706
Telemetry [baseline] (10.625 ms) : 0, 10625
Telemetry [candidate] (10.649 ms) : 0, 10649
section appsec
BytebuddyAgent [baseline] (699.988 ms) : 0, 699988
BytebuddyAgent [candidate] (702.614 ms) : 0, 702614
GlobalTracer [baseline] (236.538 ms) : 0, 236538
GlobalTracer [candidate] (237.307 ms) : 0, 237307
AppSec [baseline] (174.775 ms) : 0, 174775
AppSec [candidate] (175.233 ms) : 0, 175233
Debugger [baseline] (5.956 ms) : 0, 5956
Debugger [candidate] (5.959 ms) : 0, 5959
Remote Config [baseline] (625.536 µs) : 0, 626
Remote Config [candidate] (632.461 µs) : 0, 632
Telemetry [baseline] (8.092 ms) : 0, 8092
Telemetry [candidate] (8.083 ms) : 0, 8083
IAST [baseline] (21.67 ms) : 0, 21670
IAST [candidate] (21.887 ms) : 0, 21887
section iast
BytebuddyAgent [baseline] (800.373 ms) : 0, 800373
BytebuddyAgent [candidate] (801.897 ms) : 0, 801897
GlobalTracer [baseline] (229.542 ms) : 0, 229542
GlobalTracer [candidate] (230.571 ms) : 0, 230571
AppSec [baseline] (50.871 ms) : 0, 50871
AppSec [candidate] (51.192 ms) : 0, 51192
Debugger [baseline] (5.894 ms) : 0, 5894
Debugger [candidate] (5.912 ms) : 0, 5912
Remote Config [baseline] (593.521 µs) : 0, 594
Remote Config [candidate] (596.913 µs) : 0, 597
Telemetry [baseline] (7.836 ms) : 0, 7836
Telemetry [candidate] (7.841 ms) : 0, 7841
IAST [baseline] (26.765 ms) : 0, 26765
IAST [candidate] (25.845 ms) : 0, 25845
section profiling
BytebuddyAgent [baseline] (673.065 ms) : 0, 673065
BytebuddyAgent [candidate] (671.49 ms) : 0, 671490
GlobalTracer [baseline] (378.981 ms) : 0, 378981
GlobalTracer [candidate] (377.156 ms) : 0, 377156
AppSec [baseline] (54.944 ms) : 0, 54944
AppSec [candidate] (53.449 ms) : 0, 53449
Debugger [baseline] (6.13 ms) : 0, 6130
Debugger [candidate] (6.134 ms) : 0, 6134
Remote Config [baseline] (666.151 µs) : 0, 666
Remote Config [candidate] (650.312 µs) : 0, 650
Telemetry [baseline] (8.125 ms) : 0, 8125
Telemetry [candidate] (8.147 ms) : 0, 8147
ProfilingAgent [baseline] (109.095 ms) : 0, 109095
ProfilingAgent [candidate] (109.475 ms) : 0, 109475
Profiling [baseline] (109.121 ms) : 0, 109121
Profiling [candidate] (109.502 ms) : 0, 109502

Load

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
end_time	2025-05-08T19:13:44	2025-05-08T19:21:30
git_branch	master	inferred-proxy-improvements
git_commit_date	1746692171	1746730344
git_commit_sha	`d5d53cd`	`457db92`
release_version	1.50.0-SNAPSHOT~d5d53cd553	1.50.0-SNAPSHOT~457db927ac
start_time	2025-05-08T19:13:30	2025-05-08T19:21:16

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1746732489	1746732489
ci_job_id	930391628	930391628
ci_pipeline_id	64567880	64567880
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_version	Linux runner-psrqmy6d-project-304-concurrent-3-6ekued0j 6.8.0-1027-aws #29~22.04.1-Ubuntu SMP Sun Mar 30 07:45:38 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux	Linux runner-psrqmy6d-project-304-concurrent-3-6ekued0j 6.8.0-1027-aws #29~22.04.1-Ubuntu SMP Sun Mar 30 07:45:38 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
variant	iast	iast

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 12 metrics, 18 unstable metrics.

Request duration reports for petclinic

gantt
    title petclinic - request duration [CI 0.99] : candidate=1.50.0-SNAPSHOT~457db927ac, baseline=1.50.0-SNAPSHOT~d5d53cd553
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.357 ms) : 1338, 1376
.   : milestone, 1357,
appsec (1.747 ms) : 1724, 1771
.   : milestone, 1747,
appsec_no_iast (1.728 ms) : 1704, 1751
.   : milestone, 1728,
code_origins (1.662 ms) : 1635, 1689
.   : milestone, 1662,
iast (1.526 ms) : 1502, 1550
.   : milestone, 1526,
profiling (1.561 ms) : 1537, 1585
.   : milestone, 1561,
tracing (1.483 ms) : 1460, 1506
.   : milestone, 1483,
section candidate
no_agent (1.342 ms) : 1323, 1361
.   : milestone, 1342,
appsec (1.744 ms) : 1720, 1768
.   : milestone, 1744,
appsec_no_iast (1.733 ms) : 1710, 1757
.   : milestone, 1733,
code_origins (1.663 ms) : 1636, 1690
.   : milestone, 1663,
iast (1.515 ms) : 1491, 1539
.   : milestone, 1515,
profiling (1.526 ms) : 1501, 1550
.   : milestone, 1526,
tracing (1.503 ms) : 1478, 1528
.   : milestone, 1503,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.357 ms [1.338 ms, 1.376 ms]	-
appsec	1.747 ms [1.724 ms, 1.771 ms]	390.222 µs (28.8%)
appsec_no_iast	1.728 ms [1.704 ms, 1.751 ms]	370.695 µs (27.3%)
code_origins	1.662 ms [1.635 ms, 1.689 ms]	305.187 µs (22.5%)
iast	1.526 ms [1.502 ms, 1.55 ms]	168.995 µs (12.5%)
profiling	1.561 ms [1.537 ms, 1.585 ms]	203.756 µs (15.0%)
tracing	1.483 ms [1.46 ms, 1.506 ms]	125.892 µs (9.3%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.342 ms [1.323 ms, 1.361 ms]	-
appsec	1.744 ms [1.72 ms, 1.768 ms]	402.142 µs (30.0%)
appsec_no_iast	1.733 ms [1.71 ms, 1.757 ms]	391.41 µs (29.2%)
code_origins	1.663 ms [1.636 ms, 1.69 ms]	320.747 µs (23.9%)
iast	1.515 ms [1.491 ms, 1.539 ms]	173.024 µs (12.9%)
profiling	1.526 ms [1.501 ms, 1.55 ms]	183.525 µs (13.7%)
tracing	1.503 ms [1.478 ms, 1.528 ms]	161.181 µs (12.0%)

Request duration reports for insecure-bank

gantt
    title insecure-bank - request duration [CI 0.99] : candidate=1.50.0-SNAPSHOT~457db927ac, baseline=1.50.0-SNAPSHOT~d5d53cd553
    dateFormat X
    axisFormat %s
section baseline
no_agent (379.961 µs) : 359, 400
.   : milestone, 380,
iast (509.302 µs) : 488, 531
.   : milestone, 509,
iast_FULL (730.826 µs) : 709, 753
.   : milestone, 731,
iast_GLOBAL (559.502 µs) : 538, 581
.   : milestone, 560,
iast_HARDCODED_SECRET_DISABLED (515.47 µs) : 493, 538
.   : milestone, 515,
iast_INACTIVE (462.949 µs) : 441, 485
.   : milestone, 463,
iast_TELEMETRY_OFF (512.29 µs) : 489, 535
.   : milestone, 512,
tracing (459.569 µs) : 437, 482
.   : milestone, 460,
section candidate
no_agent (377.422 µs) : 357, 398
.   : milestone, 377,
iast (522.34 µs) : 500, 545
.   : milestone, 522,
iast_FULL (732.645 µs) : 711, 754
.   : milestone, 733,
iast_GLOBAL (570.898 µs) : 548, 594
.   : milestone, 571,
iast_HARDCODED_SECRET_DISABLED (515.897 µs) : 493, 539
.   : milestone, 516,
iast_INACTIVE (465.975 µs) : 443, 488
.   : milestone, 466,
iast_TELEMETRY_OFF (512.473 µs) : 489, 536
.   : milestone, 512,
tracing (460.406 µs) : 439, 482
.   : milestone, 460,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	379.961 µs [359.471 µs, 400.451 µs]	-
iast	509.302 µs [487.557 µs, 531.046 µs]	129.341 µs (34.0%)
iast_FULL	730.826 µs [709.023 µs, 752.628 µs]	350.865 µs (92.3%)
iast_GLOBAL	559.502 µs [537.731 µs, 581.273 µs]	179.542 µs (47.3%)
iast_HARDCODED_SECRET_DISABLED	515.47 µs [492.651 µs, 538.289 µs]	135.51 µs (35.7%)
iast_INACTIVE	462.949 µs [440.543 µs, 485.355 µs]	82.988 µs (21.8%)
iast_TELEMETRY_OFF	512.29 µs [489.091 µs, 535.49 µs]	132.33 µs (34.8%)
tracing	459.569 µs [437.068 µs, 482.07 µs]	79.608 µs (21.0%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	377.422 µs [356.887 µs, 397.956 µs]	-
iast	522.34 µs [499.997 µs, 544.684 µs]	144.919 µs (38.4%)
iast_FULL	732.645 µs [710.814 µs, 754.476 µs]	355.224 µs (94.1%)
iast_GLOBAL	570.898 µs [547.758 µs, 594.038 µs]	193.477 µs (51.3%)
iast_HARDCODED_SECRET_DISABLED	515.897 µs [493.138 µs, 538.656 µs]	138.475 µs (36.7%)
iast_INACTIVE	465.975 µs [443.473 µs, 488.477 µs]	88.554 µs (23.5%)
iast_TELEMETRY_OFF	512.473 µs [489.225 µs, 535.722 µs]	135.052 µs (35.8%)
tracing	460.406 µs [438.558 µs, 482.253 µs]	82.984 µs (22.0%)

Dacapo

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	inferred-proxy-improvements
git_commit_date	1746692171	1746730344
git_commit_sha	`d5d53cd`	`457db92`
release_version	1.50.0-SNAPSHOT~d5d53cd553	1.50.0-SNAPSHOT~457db927ac

See matching parameters

	Baseline	Candidate
application	biojava	biojava
ci_job_date	1746733028	1746733028
ci_job_id	930391629	930391629
ci_pipeline_id	64567880	64567880
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_version	Linux runner-7pg-kqds-project-304-concurrent-3-foe38v81 6.8.0-1027-aws #29~22.04.1-Ubuntu SMP Sun Mar 30 07:45:38 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux	Linux runner-7pg-kqds-project-304-concurrent-3-foe38v81 6.8.0-1027-aws #29~22.04.1-Ubuntu SMP Sun Mar 30 07:45:38 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
variant	appsec	appsec

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 12 metrics, 0 unstable metrics.

Execution time for biojava

gantt
    title biojava - execution time [CI 0.99] : candidate=1.50.0-SNAPSHOT~457db927ac, baseline=1.50.0-SNAPSHOT~d5d53cd553
    dateFormat X
    axisFormat %s
section baseline
no_agent (15.504 s) : 15504000, 15504000
.   : milestone, 15504000,
appsec (14.684 s) : 14684000, 14684000
.   : milestone, 14684000,
iast (18.564 s) : 18564000, 18564000
.   : milestone, 18564000,
iast_GLOBAL (18.134 s) : 18134000, 18134000
.   : milestone, 18134000,
profiling (14.993 s) : 14993000, 14993000
.   : milestone, 14993000,
tracing (15.207 s) : 15207000, 15207000
.   : milestone, 15207000,
section candidate
no_agent (14.954 s) : 14954000, 14954000
.   : milestone, 14954000,
appsec (15.169 s) : 15169000, 15169000
.   : milestone, 15169000,
iast (18.792 s) : 18792000, 18792000
.   : milestone, 18792000,
iast_GLOBAL (18.076 s) : 18076000, 18076000
.   : milestone, 18076000,
profiling (15.146 s) : 15146000, 15146000
.   : milestone, 15146000,
tracing (14.956 s) : 14956000, 14956000
.   : milestone, 14956000,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.504 s [15.504 s, 15.504 s]	-
appsec	14.684 s [14.684 s, 14.684 s]	-820.0 ms (-5.3%)
iast	18.564 s [18.564 s, 18.564 s]	3.06 s (19.7%)
iast_GLOBAL	18.134 s [18.134 s, 18.134 s]	2.63 s (17.0%)
profiling	14.993 s [14.993 s, 14.993 s]	-511.0 ms (-3.3%)
tracing	15.207 s [15.207 s, 15.207 s]	-297.0 ms (-1.9%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	14.954 s [14.954 s, 14.954 s]	-
appsec	15.169 s [15.169 s, 15.169 s]	215.0 ms (1.4%)
iast	18.792 s [18.792 s, 18.792 s]	3.838 s (25.7%)
iast_GLOBAL	18.076 s [18.076 s, 18.076 s]	3.122 s (20.9%)
profiling	15.146 s [15.146 s, 15.146 s]	192.0 ms (1.3%)
tracing	14.956 s [14.956 s, 14.956 s]	2.0 ms (0.0%)

Execution time for tomcat

gantt
    title tomcat - execution time [CI 0.99] : candidate=1.50.0-SNAPSHOT~457db927ac, baseline=1.50.0-SNAPSHOT~d5d53cd553
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.474 ms) : 1463, 1486
.   : milestone, 1474,
appsec (2.388 ms) : 2341, 2436
.   : milestone, 2388,
iast (2.164 ms) : 2105, 2224
.   : milestone, 2164,
iast_GLOBAL (2.206 ms) : 2146, 2266
.   : milestone, 2206,
profiling (2.011 ms) : 1964, 2059
.   : milestone, 2011,
tracing (1.988 ms) : 1942, 2033
.   : milestone, 1988,
section candidate
no_agent (1.475 ms) : 1464, 1487
.   : milestone, 1475,
appsec (2.38 ms) : 2333, 2427
.   : milestone, 2380,
iast (2.159 ms) : 2100, 2218
.   : milestone, 2159,
iast_GLOBAL (2.203 ms) : 2143, 2263
.   : milestone, 2203,
profiling (2.02 ms) : 1972, 2069
.   : milestone, 2020,
tracing (2.003 ms) : 1957, 2049
.   : milestone, 2003,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.474 ms [1.463 ms, 1.486 ms]	-
appsec	2.388 ms [2.341 ms, 2.436 ms]	913.915 µs (62.0%)
iast	2.164 ms [2.105 ms, 2.224 ms]	690.209 µs (46.8%)
iast_GLOBAL	2.206 ms [2.146 ms, 2.266 ms]	731.925 µs (49.6%)
profiling	2.011 ms [1.964 ms, 2.059 ms]	537.124 µs (36.4%)
tracing	1.988 ms [1.942 ms, 2.033 ms]	513.514 µs (34.8%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.475 ms [1.464 ms, 1.487 ms]	-
appsec	2.38 ms [2.333 ms, 2.427 ms]	904.561 µs (61.3%)
iast	2.159 ms [2.1 ms, 2.218 ms]	683.743 µs (46.3%)
iast_GLOBAL	2.203 ms [2.143 ms, 2.263 ms]	727.839 µs (49.3%)
profiling	2.02 ms [1.972 ms, 2.069 ms]	545.312 µs (37.0%)
tracing	2.003 ms [1.957 ms, 2.049 ms]	527.547 µs (35.8%)

mcculls · 2025-05-09T11:10:18Z

components/context/src/main/java/datadog/context/InferredProxyContext.java


+  // at most 6 x-dd-proxy http headers to be extracted and stored into the Context hashmap,
+  // following API Gateway RFC
+  private final int DEFAULT_CAPACITY = 6;


HashMap uses a load factor of 0.75, so if you use 6 as the initial capacity it will rehash when you add the 5th entry

I'd suggest using a capacity of 8 (6 / 0.75) which would let you add 6 entries without rehashing.

mcculls

Just a suggestion about taking the load factor (default 0.75) into account when sizing hash maps

github-actions · 2025-10-01T03:19:14Z

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.

jordan-wong added 2 commits May 7, 2025 14:26

add max capacity for InferredProxyContext hashmap for memory efficiency

ea718d6

remove unused header parsing method

24bc193

jordan-wong requested a review from a team as a code owner May 7, 2025 18:30

jordan-wong requested a review from mcculls May 7, 2025 18:30

jordan-wong added type: enhancement Enhancements and improvements comp: context propagation Trace context propagation labels May 7, 2025

jordan-wong added this to the 1.50.0 milestone May 7, 2025

jordan-wong mentioned this pull request May 7, 2025

Inferred Proxy Improvements #8782

Closed

jordan-wong self-assigned this May 7, 2025

jordan-wong requested a review from dougqh May 7, 2025 18:33

Merge branch 'master' into inferred-proxy-improvements

457db92

mcculls reviewed May 9, 2025

View reviewed changes

mcculls approved these changes May 9, 2025

View reviewed changes

PerfectSlayer removed this from the 1.50.0 milestone Jun 20, 2025

github-actions bot added the tag: stale Stale pull requests label Oct 1, 2025

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