Implement HTTP Endpoint Inference for Trace Resource Renaming (RFC-1051) #10393

jandro996 · 2026-01-16T14:30:49Z

What Does This Do

This PR implements automatic HTTP endpoint inference to improve trace resource naming and reduce cardinality in APM metrics. When http.route is unavailable or unreliable, the tracer now computes a simplified endpoint from the URL path by replacing dynamic segments (IDs, UUIDs, long strings) with standardized placeholders.

Changes

Endpoint Resolution & Simplification

EndpointResolver: Determines whether to use http.route or compute endpoint from URL
- Validates route eligibility (discards catch-all patterns like * and /)
- Falls back to URL-based computation when route is missing or invalid
EndpointSimplifier: Extracts and simplifies URL paths using pattern matching
- Limits to first 8 path segments to prevent cardinality explosion
- Applies regex patterns in order: INTEGER → INT_ID → HEX → HEX_ID → STRING
SegmentPattern: Defines regex patterns for common parameter types
- {param:int}, {param:int_id}, {param:hex}, {param:hex_id}, {param:str}

Trace Processing

HttpEndpointPostProcessor: Post-processes HTTP spans to update resource names
- Runs in eager processing chain before metrics aggregation
- Tags spans with http.endpoint when endpoint is computed (not when using route)
- Updates span resource name to {METHOD} {endpoint}

Metrics Enrichment

MetricKey: Enriched aggregation key with httpMethod and httpEndpoint fields
- Enables proper metric aggregation by HTTP method and endpoint
- Empty string used when tags are missing
ConflatingMetricsAggregator: Extracts http.method and http.endpoint tags from spans
SerializingMetricWriter: Serializes HTTPMethod and HTTPEndpoint fields in stats buckets

Configuration & Activation

DD_TRACE_RESOURCE_RENAMING_ENABLED: Main feature flag
- Default: disabled unless AppSec is explicitly enabled (DD_APPSEC_ENABLED=true)
- When AppSec is inactive (default), feature remains disabled
- Can be explicitly set to override default behavior
DD_TRACE_RESOURCE_RENAMING_ALWAYS_SIMPLIFIED_ENDPOINT: Testing flag
- Forces endpoint computation even when http.route is available
- Useful for comparing tracer inference with backend inference

Motivation

RFC

Additional Notes

Confirmed, it passes the ST

Contributor Checklist

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Jira ticket: APPSEC-58611

pr-commenter · 2026-01-16T16:43:06Z

Benchmarks

Startup

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	alejandro.gonzalez/add-apm-trace-metrics-tags
git_commit_date	1769086485	1769086853
git_commit_sha	`3d62379`	`b6fd7f4`
release_version	1.59.0-SNAPSHOT~3d62379c90	1.59.0-SNAPSHOT~b6fd7f4c86

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1769088964	1769088964
ci_job_id	1369709953	1369709953
ci_pipeline_id	92252903	92252903
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_version	Linux runner-zfyrx7zua-project-304-concurrent-0-2b3jlt8h 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	Linux runner-zfyrx7zua-project-304-concurrent-0-2b3jlt8h 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
module	Agent	Agent
parent	None	None

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 55 metrics, 10 unstable metrics.

Startup time reports for petclinic

gantt
    title petclinic - global startup overhead: candidate=1.59.0-SNAPSHOT~b6fd7f4c86, baseline=1.59.0-SNAPSHOT~3d62379c90

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.093 s) : 0, 1092978
Total [baseline] (10.895 s) : 0, 10894828
Agent [candidate] (1.095 s) : 0, 1095253
Total [candidate] (10.857 s) : 0, 10856527
section appsec
Agent [baseline] (1.274 s) : 0, 1274377
Total [baseline] (11.03 s) : 0, 11030164
Agent [candidate] (1.276 s) : 0, 1275828
Total [candidate] (11.104 s) : 0, 11104236
section iast
Agent [baseline] (1.226 s) : 0, 1225901
Total [baseline] (11.227 s) : 0, 11226758
Agent [candidate] (1.24 s) : 0, 1239530
Total [candidate] (11.301 s) : 0, 11300622
section profiling
Agent [baseline] (1.207 s) : 0, 1206921
Total [baseline] (10.921 s) : 0, 10920669
Agent [candidate] (1.213 s) : 0, 1212993
Total [candidate] (10.863 s) : 0, 10863330

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.093 s	-
Agent	appsec	1.274 s	181.399 ms (16.6%)
Agent	iast	1.226 s	132.922 ms (12.2%)
Agent	profiling	1.207 s	113.942 ms (10.4%)
Total	tracing	10.895 s	-
Total	appsec	11.03 s	135.336 ms (1.2%)
Total	iast	11.227 s	331.93 ms (3.0%)
Total	profiling	10.921 s	25.841 ms (0.2%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.095 s	-
Agent	appsec	1.276 s	180.575 ms (16.5%)
Agent	iast	1.24 s	144.277 ms (13.2%)
Agent	profiling	1.213 s	117.74 ms (10.8%)
Total	tracing	10.857 s	-
Total	appsec	11.104 s	247.709 ms (2.3%)
Total	iast	11.301 s	444.095 ms (4.1%)
Total	profiling	10.863 s	6.803 ms (0.1%)

gantt
    title petclinic - break down per module: candidate=1.59.0-SNAPSHOT~b6fd7f4c86, baseline=1.59.0-SNAPSHOT~3d62379c90

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.194 ms) : 0, 1194
crashtracking [candidate] (1.196 ms) : 0, 1196
BytebuddyAgent [baseline] (656.499 ms) : 0, 656499
BytebuddyAgent [candidate] (657.773 ms) : 0, 657773
GlobalTracer [baseline] (284.982 ms) : 0, 284982
GlobalTracer [candidate] (285.595 ms) : 0, 285595
AppSec [baseline] (32.937 ms) : 0, 32937
AppSec [candidate] (32.859 ms) : 0, 32859
Debugger [baseline] (67.655 ms) : 0, 67655
Debugger [candidate] (67.244 ms) : 0, 67244
Remote Config [baseline] (608.208 µs) : 0, 608
Remote Config [candidate] (617.474 µs) : 0, 617
Telemetry [baseline] (8.888 ms) : 0, 8888
Telemetry [candidate] (8.89 ms) : 0, 8890
Flare Poller [baseline] (4.612 ms) : 0, 4612
Flare Poller [candidate] (5.434 ms) : 0, 5434
section appsec
crashtracking [baseline] (1.195 ms) : 0, 1195
crashtracking [candidate] (1.188 ms) : 0, 1188
BytebuddyAgent [baseline] (695.892 ms) : 0, 695892
BytebuddyAgent [candidate] (696.549 ms) : 0, 696549
GlobalTracer [baseline] (261.449 ms) : 0, 261449
GlobalTracer [candidate] (261.429 ms) : 0, 261429
IAST [baseline] (24.726 ms) : 0, 24726
IAST [candidate] (24.822 ms) : 0, 24822
AppSec [baseline] (174.642 ms) : 0, 174642
AppSec [candidate] (173.004 ms) : 0, 173004
Debugger [baseline] (67.01 ms) : 0, 67010
Debugger [candidate] (69.426 ms) : 0, 69426
Remote Config [baseline] (749.814 µs) : 0, 750
Remote Config [candidate] (756.428 µs) : 0, 756
Telemetry [baseline] (9.41 ms) : 0, 9410
Telemetry [candidate] (9.306 ms) : 0, 9306
Flare Poller [baseline] (3.738 ms) : 0, 3738
Flare Poller [candidate] (3.752 ms) : 0, 3752
section iast
crashtracking [baseline] (1.176 ms) : 0, 1176
crashtracking [candidate] (1.19 ms) : 0, 1190
BytebuddyAgent [baseline] (791.981 ms) : 0, 791981
BytebuddyAgent [candidate] (802.731 ms) : 0, 802731
GlobalTracer [baseline] (257.032 ms) : 0, 257032
GlobalTracer [candidate] (259.394 ms) : 0, 259394
IAST [baseline] (27.034 ms) : 0, 27034
IAST [candidate] (27.227 ms) : 0, 27227
AppSec [baseline] (34.551 ms) : 0, 34551
AppSec [candidate] (34.521 ms) : 0, 34521
Debugger [baseline] (66.234 ms) : 0, 66234
Debugger [candidate] (66.288 ms) : 0, 66288
Remote Config [baseline] (583.823 µs) : 0, 584
Remote Config [candidate] (576.701 µs) : 0, 577
Telemetry [baseline] (8.471 ms) : 0, 8471
Telemetry [candidate] (8.452 ms) : 0, 8452
Flare Poller [baseline] (3.576 ms) : 0, 3576
Flare Poller [candidate] (3.621 ms) : 0, 3621
section profiling
crashtracking [baseline] (1.216 ms) : 0, 1216
crashtracking [candidate] (1.221 ms) : 0, 1221
BytebuddyAgent [baseline] (702.657 ms) : 0, 702657
BytebuddyAgent [candidate] (706.336 ms) : 0, 706336
GlobalTracer [baseline] (222.231 ms) : 0, 222231
GlobalTracer [candidate] (222.978 ms) : 0, 222978
AppSec [baseline] (32.311 ms) : 0, 32311
AppSec [candidate] (32.669 ms) : 0, 32669
Debugger [baseline] (67.751 ms) : 0, 67751
Debugger [candidate] (68.404 ms) : 0, 68404
Remote Config [baseline] (631.604 µs) : 0, 632
Remote Config [candidate] (675.167 µs) : 0, 675
Telemetry [baseline] (8.871 ms) : 0, 8871
Telemetry [candidate] (9.018 ms) : 0, 9018
Flare Poller [baseline] (3.72 ms) : 0, 3720
Flare Poller [candidate] (3.807 ms) : 0, 3807
ProfilingAgent [baseline] (97.594 ms) : 0, 97594
ProfilingAgent [candidate] (97.645 ms) : 0, 97645
Profiling [baseline] (98.184 ms) : 0, 98184
Profiling [candidate] (98.227 ms) : 0, 98227

Startup time reports for insecure-bank

gantt
    title insecure-bank - global startup overhead: candidate=1.59.0-SNAPSHOT~b6fd7f4c86, baseline=1.59.0-SNAPSHOT~3d62379c90

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.091 s) : 0, 1090919
Total [baseline] (8.819 s) : 0, 8818807
Agent [candidate] (1.087 s) : 0, 1087339
Total [candidate] (8.769 s) : 0, 8768798
section iast
Agent [baseline] (1.228 s) : 0, 1228409
Total [baseline] (9.36 s) : 0, 9359677
Agent [candidate] (1.226 s) : 0, 1226373
Total [candidate] (9.398 s) : 0, 9397688

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.091 s	-
Agent	iast	1.228 s	137.49 ms (12.6%)
Total	tracing	8.819 s	-
Total	iast	9.36 s	540.87 ms (6.1%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.087 s	-
Agent	iast	1.226 s	139.033 ms (12.8%)
Total	tracing	8.769 s	-
Total	iast	9.398 s	628.89 ms (7.2%)

gantt
    title insecure-bank - break down per module: candidate=1.59.0-SNAPSHOT~b6fd7f4c86, baseline=1.59.0-SNAPSHOT~3d62379c90

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.188 ms) : 0, 1188
crashtracking [candidate] (1.178 ms) : 0, 1178
BytebuddyAgent [baseline] (657.097 ms) : 0, 657097
BytebuddyAgent [candidate] (653.418 ms) : 0, 653418
GlobalTracer [baseline] (284.116 ms) : 0, 284116
GlobalTracer [candidate] (283.766 ms) : 0, 283766
AppSec [baseline] (32.473 ms) : 0, 32473
AppSec [candidate] (32.589 ms) : 0, 32589
Debugger [baseline] (66.378 ms) : 0, 66378
Debugger [candidate] (65.157 ms) : 0, 65157
Remote Config [baseline] (620.104 µs) : 0, 620
Remote Config [candidate] (633.758 µs) : 0, 634
Telemetry [baseline] (8.831 ms) : 0, 8831
Telemetry [candidate] (8.901 ms) : 0, 8901
Flare Poller [baseline] (4.657 ms) : 0, 4657
Flare Poller [candidate] (6.102 ms) : 0, 6102
section iast
crashtracking [baseline] (1.186 ms) : 0, 1186
crashtracking [candidate] (1.182 ms) : 0, 1182
BytebuddyAgent [baseline] (795.919 ms) : 0, 795919
BytebuddyAgent [candidate] (793.479 ms) : 0, 793479
GlobalTracer [baseline] (257.468 ms) : 0, 257468
GlobalTracer [candidate] (257.443 ms) : 0, 257443
AppSec [baseline] (34.146 ms) : 0, 34146
AppSec [candidate] (33.511 ms) : 0, 33511
Debugger [baseline] (64.828 ms) : 0, 64828
Debugger [candidate] (65.741 ms) : 0, 65741
Remote Config [baseline] (601.931 µs) : 0, 602
Remote Config [candidate] (583.382 µs) : 0, 583
Telemetry [baseline] (8.491 ms) : 0, 8491
Telemetry [candidate] (8.436 ms) : 0, 8436
Flare Poller [baseline] (3.562 ms) : 0, 3562
Flare Poller [candidate] (3.617 ms) : 0, 3617
IAST [baseline] (26.854 ms) : 0, 26854
IAST [candidate] (27.074 ms) : 0, 27074

Load

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	alejandro.gonzalez/add-apm-trace-metrics-tags
git_commit_date	1769086485	1769086853
git_commit_sha	`3d62379`	`b6fd7f4`
release_version	1.59.0-SNAPSHOT~3d62379c90	1.59.0-SNAPSHOT~b6fd7f4c86

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1769089452	1769089452
ci_job_id	1369709954	1369709954
ci_pipeline_id	92252903	92252903
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_version	Linux runner-zfyrx7zua-project-304-concurrent-0-7zlhw1nd 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	Linux runner-zfyrx7zua-project-304-concurrent-0-7zlhw1nd 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 3 performance improvements and 1 performance regressions! Performance is the same for 16 metrics, 16 unstable metrics.

scenario	Δ mean agg_http_req_duration_p50	Δ mean agg_http_req_duration_p95	Δ mean throughput	candidate mean agg_http_req_duration_p50	candidate mean agg_http_req_duration_p95	candidate mean throughput	baseline mean agg_http_req_duration_p50	baseline mean agg_http_req_duration_p95	baseline mean throughput
scenario:load:insecure-bank:iast_GLOBAL:high_load	better [-334.365µs; -192.466µs] or [-10.891%; -6.269%]	unstable [-1248.082µs; +1355.342µs] or [-14.745%; +16.012%]	unstable [-55.006op/s; +237.256op/s] or [-4.627%; +19.955%]	2.807ms	8.518ms	1280.062op/s	3.070ms	8.465ms	1188.938op/s
scenario:load:insecure-bank:iast_FULL:high_load	better [-376.297µs; -123.940µs] or [-7.119%; -2.345%]	better [-1051.968µs; -491.716µs] or [-8.245%; -3.854%]	unstable [-46.912op/s; +118.912op/s] or [-6.036%; +15.300%]	5.036ms	11.986ms	813.188op/s	5.286ms	12.758ms	777.188op/s
scenario:load:petclinic:tracing:high_load	worse [+381.938µs; +885.905µs] or [+2.231%; +5.174%]	same [-303.589µs; +933.713µs] or [-1.059%; +3.258%]	unstable [-37.226op/s; +21.851op/s] or [-14.037%; +8.240%]	17.755ms	28.976ms	257.500op/s	17.121ms	28.661ms	265.188op/s

Request duration reports for petclinic

gantt
    title petclinic - request duration [CI 0.99] : candidate=1.59.0-SNAPSHOT~b6fd7f4c86, baseline=1.59.0-SNAPSHOT~3d62379c90
    dateFormat X
    axisFormat %s
section baseline
no_agent (17.186 ms) : 17011, 17361
.   : milestone, 17186,
appsec (18.772 ms) : 18581, 18962
.   : milestone, 18772,
code_origins (17.622 ms) : 17448, 17797
.   : milestone, 17622,
iast (17.595 ms) : 17421, 17769
.   : milestone, 17595,
profiling (18.542 ms) : 18358, 18727
.   : milestone, 18542,
tracing (17.595 ms) : 17421, 17770
.   : milestone, 17595,
section candidate
no_agent (18.06 ms) : 17879, 18241
.   : milestone, 18060,
appsec (18.621 ms) : 18433, 18809
.   : milestone, 18621,
code_origins (17.692 ms) : 17516, 17867
.   : milestone, 17692,
iast (17.633 ms) : 17455, 17810
.   : milestone, 17633,
profiling (18.767 ms) : 18578, 18956
.   : milestone, 18767,
tracing (18.121 ms) : 17944, 18299
.   : milestone, 18121,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	17.186 ms [17.011 ms, 17.361 ms]	-
appsec	18.772 ms [18.581 ms, 18.962 ms]	1.586 ms (9.2%)
code_origins	17.622 ms [17.448 ms, 17.797 ms]	436.915 µs (2.5%)
iast	17.595 ms [17.421 ms, 17.769 ms]	409.129 µs (2.4%)
profiling	18.542 ms [18.358 ms, 18.727 ms]	1.357 ms (7.9%)
tracing	17.595 ms [17.421 ms, 17.77 ms]	409.72 µs (2.4%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	18.06 ms [17.879 ms, 18.241 ms]	-
appsec	18.621 ms [18.433 ms, 18.809 ms]	561.298 µs (3.1%)
code_origins	17.692 ms [17.516 ms, 17.867 ms]	-368.259 µs (-2.0%)
iast	17.633 ms [17.455 ms, 17.81 ms]	-427.024 µs (-2.4%)
profiling	18.767 ms [18.578 ms, 18.956 ms]	707.614 µs (3.9%)
tracing	18.121 ms [17.944 ms, 18.299 ms]	61.359 µs (0.3%)

Request duration reports for insecure-bank

gantt
    title insecure-bank - request duration [CI 0.99] : candidate=1.59.0-SNAPSHOT~b6fd7f4c86, baseline=1.59.0-SNAPSHOT~3d62379c90
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.171 ms) : 1159, 1182
.   : milestone, 1171,
iast (3.187 ms) : 3143, 3231
.   : milestone, 3187,
iast_FULL (5.95 ms) : 5888, 6011
.   : milestone, 5950,
iast_GLOBAL (3.863 ms) : 3797, 3928
.   : milestone, 3863,
profiling (2.229 ms) : 2209, 2248
.   : milestone, 2229,
tracing (1.799 ms) : 1784, 1814
.   : milestone, 1799,
section candidate
no_agent (1.184 ms) : 1173, 1196
.   : milestone, 1184,
iast (3.087 ms) : 3048, 3127
.   : milestone, 3087,
iast_FULL (5.683 ms) : 5627, 5739
.   : milestone, 5683,
iast_GLOBAL (3.584 ms) : 3525, 3643
.   : milestone, 3584,
profiling (2.113 ms) : 2094, 2131
.   : milestone, 2113,
tracing (1.809 ms) : 1794, 1825
.   : milestone, 1809,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.171 ms [1.159 ms, 1.182 ms]	-
iast	3.187 ms [3.143 ms, 3.231 ms]	2.016 ms (172.2%)
iast_FULL	5.95 ms [5.888 ms, 6.011 ms]	4.779 ms (408.2%)
iast_GLOBAL	3.863 ms [3.797 ms, 3.928 ms]	2.692 ms (229.9%)
profiling	2.229 ms [2.209 ms, 2.248 ms]	1.058 ms (90.4%)
tracing	1.799 ms [1.784 ms, 1.814 ms]	628.261 µs (53.7%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.184 ms [1.173 ms, 1.196 ms]	-
iast	3.087 ms [3.048 ms, 3.127 ms]	1.903 ms (160.7%)
iast_FULL	5.683 ms [5.627 ms, 5.739 ms]	4.499 ms (379.8%)
iast_GLOBAL	3.584 ms [3.525 ms, 3.643 ms]	2.399 ms (202.6%)
profiling	2.113 ms [2.094 ms, 2.131 ms]	928.35 µs (78.4%)
tracing	1.809 ms [1.794 ms, 1.825 ms]	625.041 µs (52.8%)

Dacapo

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	alejandro.gonzalez/add-apm-trace-metrics-tags
git_commit_date	1769086485	1769086853
git_commit_sha	`3d62379`	`b6fd7f4`
release_version	1.59.0-SNAPSHOT~3d62379c90	1.59.0-SNAPSHOT~b6fd7f4c86

See matching parameters

	Baseline	Candidate
application	biojava	biojava
ci_job_date	1769089134	1769089134
ci_job_id	1369709955	1369709955
ci_pipeline_id	92252903	92252903
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_version	Linux runner-zfyrx7zua-project-304-concurrent-1-jfz8fbla 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	Linux runner-zfyrx7zua-project-304-concurrent-1-jfz8fbla 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 12 metrics, 0 unstable metrics.

Execution time for tomcat

gantt
    title tomcat - execution time [CI 0.99] : candidate=1.59.0-SNAPSHOT~b6fd7f4c86, baseline=1.59.0-SNAPSHOT~3d62379c90
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.476 ms) : 1465, 1488
.   : milestone, 1476,
appsec (2.459 ms) : 2407, 2511
.   : milestone, 2459,
iast (2.216 ms) : 2151, 2281
.   : milestone, 2216,
iast_GLOBAL (2.256 ms) : 2190, 2321
.   : milestone, 2256,
profiling (2.097 ms) : 2043, 2151
.   : milestone, 2097,
tracing (2.048 ms) : 1997, 2099
.   : milestone, 2048,
section candidate
no_agent (1.479 ms) : 1467, 1490
.   : milestone, 1479,
appsec (2.498 ms) : 2445, 2550
.   : milestone, 2498,
iast (2.222 ms) : 2157, 2287
.   : milestone, 2222,
iast_GLOBAL (2.255 ms) : 2190, 2320
.   : milestone, 2255,
profiling (2.072 ms) : 2019, 2125
.   : milestone, 2072,
tracing (2.05 ms) : 1999, 2101
.   : milestone, 2050,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.476 ms [1.465 ms, 1.488 ms]	-
appsec	2.459 ms [2.407 ms, 2.511 ms]	983.119 µs (66.6%)
iast	2.216 ms [2.151 ms, 2.281 ms]	739.524 µs (50.1%)
iast_GLOBAL	2.256 ms [2.19 ms, 2.321 ms]	779.251 µs (52.8%)
profiling	2.097 ms [2.043 ms, 2.151 ms]	620.674 µs (42.0%)
tracing	2.048 ms [1.997 ms, 2.099 ms]	571.693 µs (38.7%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.479 ms [1.467 ms, 1.49 ms]	-
appsec	2.498 ms [2.445 ms, 2.55 ms]	1.019 ms (68.9%)
iast	2.222 ms [2.157 ms, 2.287 ms]	743.359 µs (50.3%)
iast_GLOBAL	2.255 ms [2.19 ms, 2.32 ms]	776.043 µs (52.5%)
profiling	2.072 ms [2.019 ms, 2.125 ms]	593.366 µs (40.1%)
tracing	2.05 ms [1.999 ms, 2.101 ms]	571.256 µs (38.6%)

Execution time for biojava

gantt
    title biojava - execution time [CI 0.99] : candidate=1.59.0-SNAPSHOT~b6fd7f4c86, baseline=1.59.0-SNAPSHOT~3d62379c90
    dateFormat X
    axisFormat %s
section baseline
no_agent (15.056 s) : 15056000, 15056000
.   : milestone, 15056000,
appsec (14.691 s) : 14691000, 14691000
.   : milestone, 14691000,
iast (18.349 s) : 18349000, 18349000
.   : milestone, 18349000,
iast_GLOBAL (17.671 s) : 17671000, 17671000
.   : milestone, 17671000,
profiling (14.756 s) : 14756000, 14756000
.   : milestone, 14756000,
tracing (14.68 s) : 14680000, 14680000
.   : milestone, 14680000,
section candidate
no_agent (15.717 s) : 15717000, 15717000
.   : milestone, 15717000,
appsec (14.596 s) : 14596000, 14596000
.   : milestone, 14596000,
iast (18.186 s) : 18186000, 18186000
.   : milestone, 18186000,
iast_GLOBAL (17.745 s) : 17745000, 17745000
.   : milestone, 17745000,
profiling (15.285 s) : 15285000, 15285000
.   : milestone, 15285000,
tracing (15.031 s) : 15031000, 15031000
.   : milestone, 15031000,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.056 s [15.056 s, 15.056 s]	-
appsec	14.691 s [14.691 s, 14.691 s]	-365.0 ms (-2.4%)
iast	18.349 s [18.349 s, 18.349 s]	3.293 s (21.9%)
iast_GLOBAL	17.671 s [17.671 s, 17.671 s]	2.615 s (17.4%)
profiling	14.756 s [14.756 s, 14.756 s]	-300.0 ms (-2.0%)
tracing	14.68 s [14.68 s, 14.68 s]	-376.0 ms (-2.5%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.717 s [15.717 s, 15.717 s]	-
appsec	14.596 s [14.596 s, 14.596 s]	-1.121 s (-7.1%)
iast	18.186 s [18.186 s, 18.186 s]	2.469 s (15.7%)
iast_GLOBAL	17.745 s [17.745 s, 17.745 s]	2.028 s (12.9%)
profiling	15.285 s [15.285 s, 15.285 s]	-432.0 ms (-2.7%)
tracing	15.031 s [15.031 s, 15.031 s]	-686.0 ms (-4.4%)

amarziali · 2026-01-21T15:50:13Z

dd-trace-core/src/main/java/datadog/trace/common/metrics/MetricKey.java

    this.isTraceRoot = isTraceRoot;
    this.spanKind = null == spanKind ? EMPTY : UTF8BytesString.create(spanKind);
    this.peerTags = peerTags == null ? Collections.emptyList() : peerTags;
+    this.httpMethod = null == httpMethod ? EMPTY : UTF8BytesString.create(httpMethod);


if the feature is opt-in I think you should not add aggregation dimentions for httpMethod and httpEndpoint if disabled otherwise the metrics buckets will change

Thanks! solved in b6fd7f4

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dd-trace-core/src/main/java/datadog/trace/core/endpoint/EndpointResolver.java

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jandro996 added type: enhancement Enhancements and improvements tag: do not merge Do not merge changes comp: asm waf Application Security Management (WAF) labels Jan 16, 2026

jandro996 force-pushed the alejandro.gonzalez/add-apm-trace-metrics-tags branch 2 times, most recently from c8d180b to daa5a49 Compare January 21, 2026 10:49

jandro996 changed the title ~~WIP~~ Implement HTTP Endpoint Inference for Trace Resource Renaming (RFC-1051) Jan 21, 2026

jandro996 removed the tag: do not merge Do not merge changes label Jan 21, 2026

jandro996 mentioned this pull request Jan 21, 2026

Inferred Routes and Resource Renaming: new APM trace metrics tag #9553

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jandro996 requested a review from daniel-romano-DD January 21, 2026 11:46

jandro996 marked this pull request as ready for review January 21, 2026 15:42

jandro996 requested review from a team as code owners January 21, 2026 15:42

jandro996 requested review from PerfectSlayer, amarziali, cecile75 and smola and removed request for a team January 21, 2026 15:42

amarziali reviewed Jan 21, 2026

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dd-trace-core/src/main/java/datadog/trace/core/endpoint/EndpointResolver.java Show resolved Hide resolved

jandro996 added 4 commits January 22, 2026 14:00

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Make HTTP endpoint metrics conditional on feature flag

b6fd7f4

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jandro996 force-pushed the alejandro.gonzalez/add-apm-trace-metrics-tags branch from c27ecbb to b6fd7f4 Compare January 22, 2026 13:01

jandro996 requested a review from amarziali January 22, 2026 13:56

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Implement HTTP Endpoint Inference for Trace Resource Renaming (RFC-1051) #10393

Implement HTTP Endpoint Inference for Trace Resource Renaming (RFC-1051) #10393

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