Using forEach to avoid Iterator allocation by dougqh · Pull Request #10830 · DataDog/dd-trace-java

dougqh · 2026-03-12T20:08:03Z

What Does This Do

Uses forEach in CoreTracer.write to avoid ArrayList$Itr allocation

Motivation

In span creation stress test: 16 threads x 10,000,000 traces x 2 spans, saves 5 GiB of allocation

Additional Notes

Contributor Checklist

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Use solves instead, and assign the PR milestone to the issue
Update the CODEOWNERS file on source file addition, migration, or deletion
Update public documentation with any new configuration flags or behaviors

Jira ticket: [PROJ-IDENT]

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pr-commenter · 2026-03-12T21:03:53Z

Benchmarks

Startup

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	dougqh/coretracer-preprocessing
git_commit_date	1773343101	1773346521
git_commit_sha	`6f14285`	`5a3f018`
release_version	1.61.0-SNAPSHOT~6f142855b8	1.61.0-SNAPSHOT~5a3f01842f

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1773348364	1773348364
ci_job_id	1502358708	1502358708
ci_pipeline_id	102246349	102246349
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-rg1zzj9y 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-rg1zzj9y 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 62 metrics, 9 unstable metrics.

Startup time reports for petclinic

gantt
    title petclinic - global startup overhead: candidate=1.61.0-SNAPSHOT~5a3f01842f, baseline=1.61.0-SNAPSHOT~6f142855b8

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.06 s) : 0, 1059536
Total [baseline] (11.025 s) : 0, 11025418
Agent [candidate] (1.058 s) : 0, 1058157
Total [candidate] (11.151 s) : 0, 11150824
section appsec
Agent [baseline] (1.264 s) : 0, 1263704
Total [baseline] (11.351 s) : 0, 11350593
Agent [candidate] (1.244 s) : 0, 1244484
Total [candidate] (11.141 s) : 0, 11141483
section iast
Agent [baseline] (1.23 s) : 0, 1229720
Total [baseline] (11.402 s) : 0, 11402180
Agent [candidate] (1.226 s) : 0, 1226142
Total [candidate] (11.311 s) : 0, 11310572
section profiling
Agent [baseline] (1.182 s) : 0, 1182020
Total [baseline] (10.981 s) : 0, 10980801
Agent [candidate] (1.184 s) : 0, 1184226
Total [candidate] (11.126 s) : 0, 11126415

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.06 s	-
Agent	appsec	1.264 s	204.168 ms (19.3%)
Agent	iast	1.23 s	170.184 ms (16.1%)
Agent	profiling	1.182 s	122.484 ms (11.6%)
Total	tracing	11.025 s	-
Total	appsec	11.351 s	325.175 ms (2.9%)
Total	iast	11.402 s	376.763 ms (3.4%)
Total	profiling	10.981 s	-44.617 ms (-0.4%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.058 s	-
Agent	appsec	1.244 s	186.327 ms (17.6%)
Agent	iast	1.226 s	167.985 ms (15.9%)
Agent	profiling	1.184 s	126.069 ms (11.9%)
Total	tracing	11.151 s	-
Total	appsec	11.141 s	-9.341 ms (-0.1%)
Total	iast	11.311 s	159.748 ms (1.4%)
Total	profiling	11.126 s	-24.409 ms (-0.2%)

gantt
    title petclinic - break down per module: candidate=1.61.0-SNAPSHOT~5a3f01842f, baseline=1.61.0-SNAPSHOT~6f142855b8

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.192 ms) : 0, 1192
crashtracking [candidate] (1.184 ms) : 0, 1184
BytebuddyAgent [baseline] (628.3 ms) : 0, 628300
BytebuddyAgent [candidate] (626.737 ms) : 0, 626737
AgentMeter [baseline] (29.037 ms) : 0, 29037
AgentMeter [candidate] (28.98 ms) : 0, 28980
GlobalTracer [baseline] (256.875 ms) : 0, 256875
GlobalTracer [candidate] (256.351 ms) : 0, 256351
AppSec [baseline] (31.373 ms) : 0, 31373
AppSec [candidate] (31.426 ms) : 0, 31426
Debugger [baseline] (59.342 ms) : 0, 59342
Debugger [candidate] (59.307 ms) : 0, 59307
Remote Config [baseline] (618.851 µs) : 0, 619
Remote Config [candidate] (689.239 µs) : 0, 689
Telemetry [baseline] (8.75 ms) : 0, 8750
Telemetry [candidate] (8.717 ms) : 0, 8717
Flare Poller [baseline] (8.019 ms) : 0, 8019
Flare Poller [candidate] (8.783 ms) : 0, 8783
section appsec
crashtracking [baseline] (1.229 ms) : 0, 1229
crashtracking [candidate] (1.207 ms) : 0, 1207
BytebuddyAgent [baseline] (668.024 ms) : 0, 668024
BytebuddyAgent [candidate] (656.871 ms) : 0, 656871
AgentMeter [baseline] (12.224 ms) : 0, 12224
AgentMeter [candidate] (12.052 ms) : 0, 12052
GlobalTracer [baseline] (261.439 ms) : 0, 261439
GlobalTracer [candidate] (257.752 ms) : 0, 257752
IAST [baseline] (24.449 ms) : 0, 24449
IAST [candidate] (23.976 ms) : 0, 23976
AppSec [baseline] (179.395 ms) : 0, 179395
AppSec [candidate] (177.51 ms) : 0, 177510
Debugger [baseline] (66.876 ms) : 0, 66876
Debugger [candidate] (65.719 ms) : 0, 65719
Remote Config [baseline] (589.46 µs) : 0, 589
Remote Config [candidate] (577.271 µs) : 0, 577
Telemetry [baseline] (9.135 ms) : 0, 9135
Telemetry [candidate] (8.973 ms) : 0, 8973
Flare Poller [baseline] (3.753 ms) : 0, 3753
Flare Poller [candidate] (3.622 ms) : 0, 3622
section iast
crashtracking [baseline] (1.207 ms) : 0, 1207
crashtracking [candidate] (1.198 ms) : 0, 1198
BytebuddyAgent [baseline] (797.486 ms) : 0, 797486
BytebuddyAgent [candidate] (794.902 ms) : 0, 794902
AgentMeter [baseline] (11.332 ms) : 0, 11332
AgentMeter [candidate] (11.356 ms) : 0, 11356
GlobalTracer [baseline] (247.975 ms) : 0, 247975
GlobalTracer [candidate] (247.183 ms) : 0, 247183
IAST [baseline] (25.248 ms) : 0, 25248
IAST [candidate] (25.146 ms) : 0, 25146
AppSec [baseline] (26.495 ms) : 0, 26495
AppSec [candidate] (26.452 ms) : 0, 26452
Debugger [baseline] (64.249 ms) : 0, 64249
Debugger [candidate] (64.846 ms) : 0, 64846
Remote Config [baseline] (517.625 µs) : 0, 518
Remote Config [candidate] (535.88 µs) : 0, 536
Telemetry [baseline] (14.324 ms) : 0, 14324
Telemetry [candidate] (13.863 ms) : 0, 13863
Flare Poller [baseline] (4.747 ms) : 0, 4747
Flare Poller [candidate] (4.575 ms) : 0, 4575
section profiling
crashtracking [baseline] (1.181 ms) : 0, 1181
crashtracking [candidate] (1.163 ms) : 0, 1163
BytebuddyAgent [baseline] (682.026 ms) : 0, 682026
BytebuddyAgent [candidate] (683.477 ms) : 0, 683477
AgentMeter [baseline] (8.671 ms) : 0, 8671
AgentMeter [candidate] (8.674 ms) : 0, 8674
GlobalTracer [baseline] (215.66 ms) : 0, 215660
GlobalTracer [candidate] (215.732 ms) : 0, 215732
AppSec [baseline] (31.882 ms) : 0, 31882
AppSec [candidate] (32.008 ms) : 0, 32008
Debugger [baseline] (63.826 ms) : 0, 63826
Debugger [candidate] (63.978 ms) : 0, 63978
Remote Config [baseline] (587.635 µs) : 0, 588
Remote Config [candidate] (592.946 µs) : 0, 593
Telemetry [baseline] (8.986 ms) : 0, 8986
Telemetry [candidate] (9.769 ms) : 0, 9769
Flare Poller [baseline] (4.266 ms) : 0, 4266
Flare Poller [candidate] (3.553 ms) : 0, 3553
ProfilingAgent [baseline] (94.054 ms) : 0, 94054
ProfilingAgent [candidate] (94.341 ms) : 0, 94341
Profiling [baseline] (94.615 ms) : 0, 94615
Profiling [candidate] (94.911 ms) : 0, 94911

Startup time reports for insecure-bank

gantt
    title insecure-bank - global startup overhead: candidate=1.61.0-SNAPSHOT~5a3f01842f, baseline=1.61.0-SNAPSHOT~6f142855b8

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.072 s) : 0, 1071847
Total [baseline] (8.901 s) : 0, 8901221
Agent [candidate] (1.076 s) : 0, 1075838
Total [candidate] (8.866 s) : 0, 8866338
section iast
Agent [baseline] (1.223 s) : 0, 1222801
Total [baseline] (9.584 s) : 0, 9583961
Agent [candidate] (1.225 s) : 0, 1225061
Total [candidate] (9.517 s) : 0, 9517481

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.072 s	-
Agent	iast	1.223 s	150.954 ms (14.1%)
Total	tracing	8.901 s	-
Total	iast	9.584 s	682.739 ms (7.7%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.076 s	-
Agent	iast	1.225 s	149.224 ms (13.9%)
Total	tracing	8.866 s	-
Total	iast	9.517 s	651.143 ms (7.3%)

gantt
    title insecure-bank - break down per module: candidate=1.61.0-SNAPSHOT~5a3f01842f, baseline=1.61.0-SNAPSHOT~6f142855b8

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.225 ms) : 0, 1225
crashtracking [candidate] (1.222 ms) : 0, 1222
BytebuddyAgent [baseline] (636.789 ms) : 0, 636789
BytebuddyAgent [candidate] (636.839 ms) : 0, 636839
AgentMeter [baseline] (29.508 ms) : 0, 29508
AgentMeter [candidate] (29.473 ms) : 0, 29473
GlobalTracer [baseline] (259.644 ms) : 0, 259644
GlobalTracer [candidate] (260.763 ms) : 0, 260763
AppSec [baseline] (32.043 ms) : 0, 32043
AppSec [candidate] (32.243 ms) : 0, 32243
Debugger [baseline] (59.478 ms) : 0, 59478
Debugger [candidate] (59.948 ms) : 0, 59948
Remote Config [baseline] (625.258 µs) : 0, 625
Remote Config [candidate] (621.316 µs) : 0, 621
Telemetry [baseline] (8.801 ms) : 0, 8801
Telemetry [candidate] (8.856 ms) : 0, 8856
Flare Poller [baseline] (7.221 ms) : 0, 7221
Flare Poller [candidate] (9.418 ms) : 0, 9418
section iast
crashtracking [baseline] (1.19 ms) : 0, 1190
crashtracking [candidate] (1.194 ms) : 0, 1194
BytebuddyAgent [baseline] (792.973 ms) : 0, 792973
BytebuddyAgent [candidate] (795.234 ms) : 0, 795234
AgentMeter [baseline] (11.328 ms) : 0, 11328
AgentMeter [candidate] (11.344 ms) : 0, 11344
GlobalTracer [baseline] (246.806 ms) : 0, 246806
GlobalTracer [candidate] (247.407 ms) : 0, 247407
AppSec [baseline] (26.273 ms) : 0, 26273
AppSec [candidate] (27.225 ms) : 0, 27225
Debugger [baseline] (62.971 ms) : 0, 62971
Debugger [candidate] (61.283 ms) : 0, 61283
Remote Config [baseline] (515.281 µs) : 0, 515
Remote Config [candidate] (509.4 µs) : 0, 509
Telemetry [baseline] (14.73 ms) : 0, 14730
Telemetry [candidate] (14.745 ms) : 0, 14745
Flare Poller [baseline] (4.857 ms) : 0, 4857
Flare Poller [candidate] (4.843 ms) : 0, 4843
IAST [baseline] (25.049 ms) : 0, 25049
IAST [candidate] (25.158 ms) : 0, 25158

Load

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	dougqh/coretracer-preprocessing
git_commit_date	1773343101	1773346521
git_commit_sha	`6f14285`	`5a3f018`
release_version	1.61.0-SNAPSHOT~6f142855b8	1.61.0-SNAPSHOT~5a3f01842f

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1773348858	1773348858
ci_job_id	1502358711	1502358711
ci_pipeline_id	102246349	102246349
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-z4xp1cm0 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-z4xp1cm0 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 20 metrics, 16 unstable metrics.

Request duration reports for petclinic

gantt
    title petclinic - request duration [CI 0.99] : candidate=1.61.0-SNAPSHOT~5a3f01842f, baseline=1.61.0-SNAPSHOT~6f142855b8
    dateFormat X
    axisFormat %s
section baseline
no_agent (17.927 ms) : 17748, 18105
.   : milestone, 17927,
appsec (18.455 ms) : 18268, 18643
.   : milestone, 18455,
code_origins (17.794 ms) : 17615, 17973
.   : milestone, 17794,
iast (17.891 ms) : 17714, 18069
.   : milestone, 17891,
profiling (18.722 ms) : 18536, 18908
.   : milestone, 18722,
tracing (17.823 ms) : 17648, 17998
.   : milestone, 17823,
section candidate
no_agent (17.978 ms) : 17795, 18161
.   : milestone, 17978,
appsec (18.534 ms) : 18346, 18721
.   : milestone, 18534,
code_origins (17.84 ms) : 17662, 18018
.   : milestone, 17840,
iast (18.687 ms) : 18498, 18876
.   : milestone, 18687,
profiling (18.447 ms) : 18261, 18633
.   : milestone, 18447,
tracing (18.194 ms) : 18011, 18377
.   : milestone, 18194,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	17.927 ms [17.748 ms, 18.105 ms]	-
appsec	18.455 ms [18.268 ms, 18.643 ms]	528.755 µs (2.9%)
code_origins	17.794 ms [17.615 ms, 17.973 ms]	-132.367 µs (-0.7%)
iast	17.891 ms [17.714 ms, 18.069 ms]	-35.033 µs (-0.2%)
profiling	18.722 ms [18.536 ms, 18.908 ms]	795.453 µs (4.4%)
tracing	17.823 ms [17.648 ms, 17.998 ms]	-103.416 µs (-0.6%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	17.978 ms [17.795 ms, 18.161 ms]	-
appsec	18.534 ms [18.346 ms, 18.721 ms]	555.245 µs (3.1%)
code_origins	17.84 ms [17.662 ms, 18.018 ms]	-138.73 µs (-0.8%)
iast	18.687 ms [18.498 ms, 18.876 ms]	708.563 µs (3.9%)
profiling	18.447 ms [18.261 ms, 18.633 ms]	468.582 µs (2.6%)
tracing	18.194 ms [18.011 ms, 18.377 ms]	215.597 µs (1.2%)

Request duration reports for insecure-bank

gantt
    title insecure-bank - request duration [CI 0.99] : candidate=1.61.0-SNAPSHOT~5a3f01842f, baseline=1.61.0-SNAPSHOT~6f142855b8
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.188 ms) : 1176, 1199
.   : milestone, 1188,
iast (3.263 ms) : 3220, 3307
.   : milestone, 3263,
iast_FULL (6.002 ms) : 5941, 6064
.   : milestone, 6002,
iast_GLOBAL (3.466 ms) : 3415, 3517
.   : milestone, 3466,
profiling (2.104 ms) : 2085, 2123
.   : milestone, 2104,
tracing (1.76 ms) : 1745, 1775
.   : milestone, 1760,
section candidate
no_agent (1.186 ms) : 1174, 1197
.   : milestone, 1186,
iast (3.221 ms) : 3178, 3263
.   : milestone, 3221,
iast_FULL (6.125 ms) : 6062, 6187
.   : milestone, 6125,
iast_GLOBAL (3.501 ms) : 3447, 3554
.   : milestone, 3501,
profiling (2.099 ms) : 2078, 2120
.   : milestone, 2099,
tracing (1.832 ms) : 1815, 1848
.   : milestone, 1832,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.188 ms [1.176 ms, 1.199 ms]	-
iast	3.263 ms [3.22 ms, 3.307 ms]	2.076 ms (174.8%)
iast_FULL	6.002 ms [5.941 ms, 6.064 ms]	4.815 ms (405.4%)
iast_GLOBAL	3.466 ms [3.415 ms, 3.517 ms]	2.279 ms (191.9%)
profiling	2.104 ms [2.085 ms, 2.123 ms]	916.422 µs (77.2%)
tracing	1.76 ms [1.745 ms, 1.775 ms]	572.409 µs (48.2%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.186 ms [1.174 ms, 1.197 ms]	-
iast	3.221 ms [3.178 ms, 3.263 ms]	2.035 ms (171.6%)
iast_FULL	6.125 ms [6.062 ms, 6.187 ms]	4.939 ms (416.5%)
iast_GLOBAL	3.501 ms [3.447 ms, 3.554 ms]	2.315 ms (195.2%)
profiling	2.099 ms [2.078 ms, 2.12 ms]	912.93 µs (77.0%)
tracing	1.832 ms [1.815 ms, 1.848 ms]	645.823 µs (54.5%)

Dacapo

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	dougqh/coretracer-preprocessing
git_commit_date	1773343101	1773346521
git_commit_sha	`6f14285`	`5a3f018`
release_version	1.61.0-SNAPSHOT~6f142855b8	1.61.0-SNAPSHOT~5a3f01842f

See matching parameters

	Baseline	Candidate
application	biojava	biojava
ci_job_date	1773348552	1773348552
ci_job_id	1502358716	1502358716
ci_pipeline_id	102246349	102246349
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-1-22ahj399 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-1-22ahj399 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 10 metrics, 2 unstable metrics.

Execution time for biojava

gantt
    title biojava - execution time [CI 0.99] : candidate=1.61.0-SNAPSHOT~5a3f01842f, baseline=1.61.0-SNAPSHOT~6f142855b8
    dateFormat X
    axisFormat %s
section baseline
no_agent (15.05 s) : 15050000, 15050000
.   : milestone, 15050000,
appsec (14.562 s) : 14562000, 14562000
.   : milestone, 14562000,
iast (17.697 s) : 17697000, 17697000
.   : milestone, 17697000,
iast_GLOBAL (17.457 s) : 17457000, 17457000
.   : milestone, 17457000,
profiling (15.523 s) : 15523000, 15523000
.   : milestone, 15523000,
tracing (14.967 s) : 14967000, 14967000
.   : milestone, 14967000,
section candidate
no_agent (15.083 s) : 15083000, 15083000
.   : milestone, 15083000,
appsec (14.908 s) : 14908000, 14908000
.   : milestone, 14908000,
iast (17.835 s) : 17835000, 17835000
.   : milestone, 17835000,
iast_GLOBAL (17.708 s) : 17708000, 17708000
.   : milestone, 17708000,
profiling (14.886 s) : 14886000, 14886000
.   : milestone, 14886000,
tracing (15.171 s) : 15171000, 15171000
.   : milestone, 15171000,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.05 s [15.05 s, 15.05 s]	-
appsec	14.562 s [14.562 s, 14.562 s]	-488.0 ms (-3.2%)
iast	17.697 s [17.697 s, 17.697 s]	2.647 s (17.6%)
iast_GLOBAL	17.457 s [17.457 s, 17.457 s]	2.407 s (16.0%)
profiling	15.523 s [15.523 s, 15.523 s]	473.0 ms (3.1%)
tracing	14.967 s [14.967 s, 14.967 s]	-83.0 ms (-0.6%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.083 s [15.083 s, 15.083 s]	-
appsec	14.908 s [14.908 s, 14.908 s]	-175.0 ms (-1.2%)
iast	17.835 s [17.835 s, 17.835 s]	2.752 s (18.2%)
iast_GLOBAL	17.708 s [17.708 s, 17.708 s]	2.625 s (17.4%)
profiling	14.886 s [14.886 s, 14.886 s]	-197.0 ms (-1.3%)
tracing	15.171 s [15.171 s, 15.171 s]	88.0 ms (0.6%)

Execution time for tomcat

gantt
    title tomcat - execution time [CI 0.99] : candidate=1.61.0-SNAPSHOT~5a3f01842f, baseline=1.61.0-SNAPSHOT~6f142855b8
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.476 ms) : 1464, 1487
.   : milestone, 1476,
appsec (3.757 ms) : 3539, 3974
.   : milestone, 3757,
iast (2.264 ms) : 2194, 2335
.   : milestone, 2264,
iast_GLOBAL (2.31 ms) : 2240, 2380
.   : milestone, 2310,
profiling (2.513 ms) : 2348, 2678
.   : milestone, 2513,
tracing (2.07 ms) : 2016, 2125
.   : milestone, 2070,
section candidate
no_agent (1.476 ms) : 1464, 1487
.   : milestone, 1476,
appsec (3.804 ms) : 3585, 4024
.   : milestone, 3804,
iast (2.276 ms) : 2206, 2347
.   : milestone, 2276,
iast_GLOBAL (2.306 ms) : 2235, 2376
.   : milestone, 2306,
profiling (2.115 ms) : 2058, 2172
.   : milestone, 2115,
tracing (2.072 ms) : 2017, 2126
.   : milestone, 2072,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.476 ms [1.464 ms, 1.487 ms]	-
appsec	3.757 ms [3.539 ms, 3.974 ms]	2.281 ms (154.6%)
iast	2.264 ms [2.194 ms, 2.335 ms]	788.845 µs (53.5%)
iast_GLOBAL	2.31 ms [2.24 ms, 2.38 ms]	834.432 µs (56.5%)
profiling	2.513 ms [2.348 ms, 2.678 ms]	1.037 ms (70.3%)
tracing	2.07 ms [2.016 ms, 2.125 ms]	594.828 µs (40.3%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.476 ms [1.464 ms, 1.487 ms]	-
appsec	3.804 ms [3.585 ms, 4.024 ms]	2.329 ms (157.8%)
iast	2.276 ms [2.206 ms, 2.347 ms]	800.745 µs (54.3%)
iast_GLOBAL	2.306 ms [2.235 ms, 2.376 ms]	830.167 µs (56.3%)
profiling	2.115 ms [2.058 ms, 2.172 ms]	639.369 µs (43.3%)
tracing	2.072 ms [2.017 ms, 2.126 ms]	596.09 µs (40.4%)

Using forEach to avoid Iterator allocation

df58a70

dougqh requested a review from a team as a code owner March 12, 2026 20:08

dougqh added type: enhancement Enhancements and improvements comp: core Tracer core labels Mar 12, 2026

dougqh requested a review from mhlidd March 12, 2026 20:08

dougqh added the tag: performance Performance related changes label Mar 12, 2026

spotless

5a3f018

PerfectSlayer approved these changes Mar 13, 2026

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Using forEach to avoid Iterator allocation#10830

Using forEach to avoid Iterator allocation#10830
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dougqh commented Mar 12, 2026

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dougqh commented Mar 12, 2026

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