Adding lighter String processing methods to Strings by dougqh · Pull Request #10640 · DataDog/dd-trace-java

dougqh · 2026-02-19T15:38:18Z

What Does This Do

Adds to StringUtils

fast replaceAll for a fixed string & replacement, 3x throughput compared to regex based solutions, 1/2x allocation compared to regex solutions
added SubSequence which provides a view into a subsequence of a String without incurring extra allocation
Strings.spliit returns an Iterable can be used to do light weight processing of a String

Motivation

In subsequent PRs, these will be used to reduce allocation from String processing throughout dd-trace-java
The first focus area for improvement is QueryObfuscator

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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- fast replaceAll for a fixed string & replacement, 3x throughput compared to regex based solutions, 1/2x allocation compared to regex solutions - added SubSequence which provides a view into a subsequence of a String without incurring extra allocation - Strings.spliit returns an Iterable<SubSequence> can be used to do light weight processing of a String

pr-commenter · 2026-02-19T16:42:47Z

Benchmarks

Startup

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	dougqh/strings-improvements
git_commit_date	1771441202	1771516519
git_commit_sha	`2fa3c0c`	`fa1b8bd`
release_version	1.60.0-SNAPSHOT~2fa3c0c243	1.60.0-SNAPSHOT~fa1b8bd149

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1771518314	1771518314
ci_job_id	1439916982	1439916982
ci_pipeline_id	97590386	97590386
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-cminndso 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-cminndso 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 60 metrics, 11 unstable metrics.

Startup time reports for insecure-bank

gantt
    title insecure-bank - global startup overhead: candidate=1.60.0-SNAPSHOT~fa1b8bd149, baseline=1.60.0-SNAPSHOT~2fa3c0c243

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.07 s) : 0, 1070167
Total [baseline] (8.76 s) : 0, 8760309
Agent [candidate] (1.063 s) : 0, 1062989
Total [candidate] (8.748 s) : 0, 8748237
section iast
Agent [baseline] (1.233 s) : 0, 1232959
Total [baseline] (9.402 s) : 0, 9401586
Agent [candidate] (1.236 s) : 0, 1235835
Total [candidate] (9.435 s) : 0, 9434930

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.07 s	-
Agent	iast	1.233 s	162.792 ms (15.2%)
Total	tracing	8.76 s	-
Total	iast	9.402 s	641.277 ms (7.3%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.063 s	-
Agent	iast	1.236 s	172.847 ms (16.3%)
Total	tracing	8.748 s	-
Total	iast	9.435 s	686.693 ms (7.8%)

gantt
    title insecure-bank - break down per module: candidate=1.60.0-SNAPSHOT~fa1b8bd149, baseline=1.60.0-SNAPSHOT~2fa3c0c243

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.219 ms) : 0, 1219
crashtracking [candidate] (1.198 ms) : 0, 1198
BytebuddyAgent [baseline] (632.515 ms) : 0, 632515
BytebuddyAgent [candidate] (626.939 ms) : 0, 626939
AgentMeter [baseline] (29.243 ms) : 0, 29243
AgentMeter [candidate] (29.017 ms) : 0, 29017
GlobalTracer [baseline] (258.649 ms) : 0, 258649
GlobalTracer [candidate] (257.105 ms) : 0, 257105
AppSec [baseline] (33.244 ms) : 0, 33244
AppSec [candidate] (32.812 ms) : 0, 32812
Debugger [baseline] (63.948 ms) : 0, 63948
Debugger [candidate] (63.897 ms) : 0, 63897
Remote Config [baseline] (618.295 µs) : 0, 618
Remote Config [candidate] (608.178 µs) : 0, 608
Telemetry [baseline] (9.843 ms) : 0, 9843
Telemetry [candidate] (9.92 ms) : 0, 9920
Flare Poller [baseline] (4.533 ms) : 0, 4533
Flare Poller [candidate] (5.354 ms) : 0, 5354
section iast
crashtracking [baseline] (1.203 ms) : 0, 1203
crashtracking [candidate] (1.211 ms) : 0, 1211
BytebuddyAgent [baseline] (797.035 ms) : 0, 797035
BytebuddyAgent [candidate] (799.18 ms) : 0, 799180
AgentMeter [baseline] (11.369 ms) : 0, 11369
AgentMeter [candidate] (11.286 ms) : 0, 11286
GlobalTracer [baseline] (248.098 ms) : 0, 248098
GlobalTracer [candidate] (248.515 ms) : 0, 248515
AppSec [baseline] (32.792 ms) : 0, 32792
AppSec [candidate] (30.572 ms) : 0, 30572
Debugger [baseline] (66.814 ms) : 0, 66814
Debugger [candidate] (69.166 ms) : 0, 69166
Remote Config [baseline] (541.562 µs) : 0, 542
Remote Config [candidate] (530.386 µs) : 0, 530
Telemetry [baseline] (8.663 ms) : 0, 8663
Telemetry [candidate] (8.616 ms) : 0, 8616
Flare Poller [baseline] (3.443 ms) : 0, 3443
Flare Poller [candidate] (3.453 ms) : 0, 3453
IAST [baseline] (26.996 ms) : 0, 26996
IAST [candidate] (27.115 ms) : 0, 27115

Startup time reports for petclinic

gantt
    title petclinic - global startup overhead: candidate=1.60.0-SNAPSHOT~fa1b8bd149, baseline=1.60.0-SNAPSHOT~2fa3c0c243

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.064 s) : 0, 1064482
Total [baseline] (10.96 s) : 0, 10960495
Agent [candidate] (1.067 s) : 0, 1067133
Total [candidate] (10.934 s) : 0, 10933857
section appsec
Agent [baseline] (1.242 s) : 0, 1242264
Total [baseline] (11.028 s) : 0, 11027569
Agent [candidate] (1.254 s) : 0, 1253716
Total [candidate] (11.066 s) : 0, 11066116
section iast
Agent [baseline] (1.242 s) : 0, 1241520
Total [baseline] (11.298 s) : 0, 11297860
Agent [candidate] (1.242 s) : 0, 1241505
Total [candidate] (11.225 s) : 0, 11224955
section profiling
Agent [baseline] (1.192 s) : 0, 1191651
Total [baseline] (11.008 s) : 0, 11008439
Agent [candidate] (1.194 s) : 0, 1194236
Total [candidate] (10.973 s) : 0, 10973298

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.064 s	-
Agent	appsec	1.242 s	177.782 ms (16.7%)
Agent	iast	1.242 s	177.038 ms (16.6%)
Agent	profiling	1.192 s	127.169 ms (11.9%)
Total	tracing	10.96 s	-
Total	appsec	11.028 s	67.074 ms (0.6%)
Total	iast	11.298 s	337.365 ms (3.1%)
Total	profiling	11.008 s	47.944 ms (0.4%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.067 s	-
Agent	appsec	1.254 s	186.583 ms (17.5%)
Agent	iast	1.242 s	174.371 ms (16.3%)
Agent	profiling	1.194 s	127.103 ms (11.9%)
Total	tracing	10.934 s	-
Total	appsec	11.066 s	132.259 ms (1.2%)
Total	iast	11.225 s	291.097 ms (2.7%)
Total	profiling	10.973 s	39.441 ms (0.4%)

gantt
    title petclinic - break down per module: candidate=1.60.0-SNAPSHOT~fa1b8bd149, baseline=1.60.0-SNAPSHOT~2fa3c0c243

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.182 ms) : 0, 1182
crashtracking [candidate] (1.201 ms) : 0, 1201
BytebuddyAgent [baseline] (628.302 ms) : 0, 628302
BytebuddyAgent [candidate] (629.387 ms) : 0, 629387
AgentMeter [baseline] (29.178 ms) : 0, 29178
AgentMeter [candidate] (29.158 ms) : 0, 29158
GlobalTracer [baseline] (257.951 ms) : 0, 257951
GlobalTracer [candidate] (258.303 ms) : 0, 258303
AppSec [baseline] (32.938 ms) : 0, 32938
AppSec [candidate] (32.858 ms) : 0, 32858
Debugger [baseline] (64.703 ms) : 0, 64703
Debugger [candidate] (64.283 ms) : 0, 64283
Remote Config [baseline] (604.087 µs) : 0, 604
Remote Config [candidate] (604.436 µs) : 0, 604
Telemetry [baseline] (9.09 ms) : 0, 9090
Telemetry [candidate] (9.838 ms) : 0, 9838
Flare Poller [baseline] (4.478 ms) : 0, 4478
Flare Poller [candidate] (5.348 ms) : 0, 5348
section appsec
crashtracking [baseline] (1.187 ms) : 0, 1187
crashtracking [candidate] (1.202 ms) : 0, 1202
BytebuddyAgent [baseline] (659.664 ms) : 0, 659664
BytebuddyAgent [candidate] (666.242 ms) : 0, 666242
AgentMeter [baseline] (12.017 ms) : 0, 12017
AgentMeter [candidate] (12.123 ms) : 0, 12123
GlobalTracer [baseline] (259.022 ms) : 0, 259022
GlobalTracer [candidate] (261.029 ms) : 0, 261029
AppSec [baseline] (168.454 ms) : 0, 168454
AppSec [candidate] (169.61 ms) : 0, 169610
Debugger [baseline] (66.517 ms) : 0, 66517
Debugger [candidate] (67.295 ms) : 0, 67295
Remote Config [baseline] (647.694 µs) : 0, 648
Remote Config [candidate] (657.692 µs) : 0, 658
Telemetry [baseline] (9.569 ms) : 0, 9569
Telemetry [candidate] (9.538 ms) : 0, 9538
Flare Poller [baseline] (3.735 ms) : 0, 3735
Flare Poller [candidate] (3.764 ms) : 0, 3764
IAST [baseline] (25.326 ms) : 0, 25326
IAST [candidate] (25.993 ms) : 0, 25993
section iast
crashtracking [baseline] (1.203 ms) : 0, 1203
crashtracking [candidate] (1.205 ms) : 0, 1205
BytebuddyAgent [baseline] (802.031 ms) : 0, 802031
BytebuddyAgent [candidate] (802.35 ms) : 0, 802350
AgentMeter [baseline] (11.593 ms) : 0, 11593
AgentMeter [candidate] (11.42 ms) : 0, 11420
GlobalTracer [baseline] (249.332 ms) : 0, 249332
GlobalTracer [candidate] (249.565 ms) : 0, 249565
AppSec [baseline] (34.96 ms) : 0, 34960
AppSec [candidate] (33.284 ms) : 0, 33284
Debugger [baseline] (66.065 ms) : 0, 66065
Debugger [candidate] (67.829 ms) : 0, 67829
Remote Config [baseline] (546.479 µs) : 0, 546
Remote Config [candidate] (529.131 µs) : 0, 529
Telemetry [baseline] (8.81 ms) : 0, 8810
Telemetry [candidate] (8.581 ms) : 0, 8581
Flare Poller [baseline] (3.487 ms) : 0, 3487
Flare Poller [candidate] (3.369 ms) : 0, 3369
IAST [baseline] (27.325 ms) : 0, 27325
IAST [candidate] (27.254 ms) : 0, 27254
section profiling
crashtracking [baseline] (1.195 ms) : 0, 1195
crashtracking [candidate] (1.165 ms) : 0, 1165
BytebuddyAgent [baseline] (682.578 ms) : 0, 682578
BytebuddyAgent [candidate] (682.408 ms) : 0, 682408
AgentMeter [baseline] (8.536 ms) : 0, 8536
AgentMeter [candidate] (8.585 ms) : 0, 8585
GlobalTracer [baseline] (216.084 ms) : 0, 216084
GlobalTracer [candidate] (216.954 ms) : 0, 216954
AppSec [baseline] (32.65 ms) : 0, 32650
AppSec [candidate] (32.658 ms) : 0, 32658
Debugger [baseline] (67.049 ms) : 0, 67049
Debugger [candidate] (67.604 ms) : 0, 67604
Remote Config [baseline] (627.15 µs) : 0, 627
Remote Config [candidate] (635.37 µs) : 0, 635
Telemetry [baseline] (8.936 ms) : 0, 8936
Telemetry [candidate] (9.173 ms) : 0, 9173
Flare Poller [baseline] (3.746 ms) : 0, 3746
Flare Poller [candidate] (3.825 ms) : 0, 3825
ProfilingAgent [baseline] (99.613 ms) : 0, 99613
ProfilingAgent [candidate] (100.552 ms) : 0, 100552
Profiling [baseline] (100.181 ms) : 0, 100181
Profiling [candidate] (101.131 ms) : 0, 101131

Load

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	dougqh/strings-improvements
git_commit_date	1771441202	1771516519
git_commit_sha	`2fa3c0c`	`fa1b8bd`
release_version	1.60.0-SNAPSHOT~2fa3c0c243	1.60.0-SNAPSHOT~fa1b8bd149

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1771518790	1771518790
ci_job_id	1439916984	1439916984
ci_pipeline_id	97590386	97590386
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-1-633fdytj 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-1-633fdytj 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 2 performance regressions! Performance is the same for 17 metrics, 17 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:petclinic:tracing:high_load	worse [+0.843ms; +1.731ms] or [+4.931%; +10.122%]	worse [+0.935ms; +2.228ms] or [+3.322%; +7.918%]	unstable [-41.606op/s; +9.919op/s] or [-15.662%; +3.734%]	18.391ms	29.717ms	249.812op/s	17.103ms	28.136ms	265.656op/s

Request duration reports for insecure-bank

gantt
    title insecure-bank - request duration [CI 0.99] : candidate=1.60.0-SNAPSHOT~fa1b8bd149, baseline=1.60.0-SNAPSHOT~2fa3c0c243
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.164 ms) : 1153, 1176
.   : milestone, 1164,
iast (3.122 ms) : 3084, 3159
.   : milestone, 3122,
iast_FULL (5.666 ms) : 5610, 5722
.   : milestone, 5666,
iast_GLOBAL (3.504 ms) : 3440, 3569
.   : milestone, 3504,
profiling (1.983 ms) : 1967, 2000
.   : milestone, 1983,
tracing (1.847 ms) : 1832, 1863
.   : milestone, 1847,
section candidate
no_agent (1.199 ms) : 1187, 1211
.   : milestone, 1199,
iast (3.197 ms) : 3152, 3242
.   : milestone, 3197,
iast_FULL (5.888 ms) : 5829, 5947
.   : milestone, 5888,
iast_GLOBAL (3.541 ms) : 3476, 3605
.   : milestone, 3541,
profiling (2.02 ms) : 2002, 2038
.   : milestone, 2020,
tracing (1.752 ms) : 1738, 1766
.   : milestone, 1752,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.164 ms [1.153 ms, 1.176 ms]	-
iast	3.122 ms [3.084 ms, 3.159 ms]	1.958 ms (168.1%)
iast_FULL	5.666 ms [5.61 ms, 5.722 ms]	4.501 ms (386.6%)
iast_GLOBAL	3.504 ms [3.44 ms, 3.569 ms]	2.34 ms (201.0%)
profiling	1.983 ms [1.967 ms, 2.0 ms]	818.96 µs (70.3%)
tracing	1.847 ms [1.832 ms, 1.863 ms]	683.116 µs (58.7%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.199 ms [1.187 ms, 1.211 ms]	-
iast	3.197 ms [3.152 ms, 3.242 ms]	1.998 ms (166.7%)
iast_FULL	5.888 ms [5.829 ms, 5.947 ms]	4.689 ms (391.1%)
iast_GLOBAL	3.541 ms [3.476 ms, 3.605 ms]	2.342 ms (195.4%)
profiling	2.02 ms [2.002 ms, 2.038 ms]	821.114 µs (68.5%)
tracing	1.752 ms [1.738 ms, 1.766 ms]	553.38 µs (46.2%)

Request duration reports for petclinic

gantt
    title petclinic - request duration [CI 0.99] : candidate=1.60.0-SNAPSHOT~fa1b8bd149, baseline=1.60.0-SNAPSHOT~2fa3c0c243
    dateFormat X
    axisFormat %s
section baseline
no_agent (19.249 ms) : 19050, 19448
.   : milestone, 19249,
appsec (18.512 ms) : 18329, 18696
.   : milestone, 18512,
code_origins (17.766 ms) : 17588, 17945
.   : milestone, 17766,
iast (17.613 ms) : 17439, 17788
.   : milestone, 17613,
profiling (18.639 ms) : 18456, 18822
.   : milestone, 18639,
tracing (17.563 ms) : 17391, 17734
.   : milestone, 17563,
section candidate
no_agent (18.347 ms) : 18158, 18535
.   : milestone, 18347,
appsec (18.566 ms) : 18376, 18755
.   : milestone, 18566,
code_origins (18.152 ms) : 17968, 18336
.   : milestone, 18152,
iast (17.577 ms) : 17402, 17752
.   : milestone, 17577,
profiling (18.797 ms) : 18606, 18989
.   : milestone, 18797,
tracing (18.687 ms) : 18502, 18872
.   : milestone, 18687,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	19.249 ms [19.05 ms, 19.448 ms]	-
appsec	18.512 ms [18.329 ms, 18.696 ms]	-736.96 µs (-3.8%)
code_origins	17.766 ms [17.588 ms, 17.945 ms]	-1.483 ms (-7.7%)
iast	17.613 ms [17.439 ms, 17.788 ms]	-1.636 ms (-8.5%)
profiling	18.639 ms [18.456 ms, 18.822 ms]	-609.787 µs (-3.2%)
tracing	17.563 ms [17.391 ms, 17.734 ms]	-1.686 ms (-8.8%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	18.347 ms [18.158 ms, 18.535 ms]	-
appsec	18.566 ms [18.376 ms, 18.755 ms]	218.907 µs (1.2%)
code_origins	18.152 ms [17.968 ms, 18.336 ms]	-194.849 µs (-1.1%)
iast	17.577 ms [17.402 ms, 17.752 ms]	-769.472 µs (-4.2%)
profiling	18.797 ms [18.606 ms, 18.989 ms]	450.702 µs (2.5%)
tracing	18.687 ms [18.502 ms, 18.872 ms]	340.189 µs (1.9%)

Dacapo

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	dougqh/strings-improvements
git_commit_date	1771441202	1771516519
git_commit_sha	`2fa3c0c`	`fa1b8bd`
release_version	1.60.0-SNAPSHOT~2fa3c0c243	1.60.0-SNAPSHOT~fa1b8bd149

See matching parameters

	Baseline	Candidate
application	biojava	biojava
ci_job_date	1771518544	1771518544
ci_job_id	1439916986	1439916986
ci_pipeline_id	97590386	97590386
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-eyb5kojt 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-eyb5kojt 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=1.60.0-SNAPSHOT~fa1b8bd149, baseline=1.60.0-SNAPSHOT~2fa3c0c243
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.479 ms) : 1467, 1490
.   : milestone, 1479,
appsec (3.802 ms) : 3578, 4026
.   : milestone, 3802,
iast (2.266 ms) : 2197, 2335
.   : milestone, 2266,
iast_GLOBAL (2.311 ms) : 2241, 2380
.   : milestone, 2311,
profiling (2.097 ms) : 2041, 2153
.   : milestone, 2097,
tracing (2.078 ms) : 2024, 2132
.   : milestone, 2078,
section candidate
no_agent (1.477 ms) : 1466, 1489
.   : milestone, 1477,
appsec (3.817 ms) : 3593, 4041
.   : milestone, 3817,
iast (2.257 ms) : 2188, 2326
.   : milestone, 2257,
iast_GLOBAL (2.308 ms) : 2239, 2378
.   : milestone, 2308,
profiling (2.12 ms) : 2064, 2177
.   : milestone, 2120,
tracing (2.08 ms) : 2026, 2134
.   : milestone, 2080,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.479 ms [1.467 ms, 1.49 ms]	-
appsec	3.802 ms [3.578 ms, 4.026 ms]	2.323 ms (157.1%)
iast	2.266 ms [2.197 ms, 2.335 ms]	787.394 µs (53.2%)
iast_GLOBAL	2.311 ms [2.241 ms, 2.38 ms]	831.834 µs (56.2%)
profiling	2.097 ms [2.041 ms, 2.153 ms]	617.853 µs (41.8%)
tracing	2.078 ms [2.024 ms, 2.132 ms]	598.944 µs (40.5%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.477 ms [1.466 ms, 1.489 ms]	-
appsec	3.817 ms [3.593 ms, 4.041 ms]	2.34 ms (158.4%)
iast	2.257 ms [2.188 ms, 2.326 ms]	779.957 µs (52.8%)
iast_GLOBAL	2.308 ms [2.239 ms, 2.378 ms]	830.954 µs (56.3%)
profiling	2.12 ms [2.064 ms, 2.177 ms]	643.298 µs (43.5%)
tracing	2.08 ms [2.026 ms, 2.134 ms]	602.822 µs (40.8%)

Execution time for biojava

gantt
    title biojava - execution time [CI 0.99] : candidate=1.60.0-SNAPSHOT~fa1b8bd149, baseline=1.60.0-SNAPSHOT~2fa3c0c243
    dateFormat X
    axisFormat %s
section baseline
no_agent (15.063 s) : 15063000, 15063000
.   : milestone, 15063000,
appsec (14.99 s) : 14990000, 14990000
.   : milestone, 14990000,
iast (18.325 s) : 18325000, 18325000
.   : milestone, 18325000,
iast_GLOBAL (17.657 s) : 17657000, 17657000
.   : milestone, 17657000,
profiling (15.245 s) : 15245000, 15245000
.   : milestone, 15245000,
tracing (14.7 s) : 14700000, 14700000
.   : milestone, 14700000,
section candidate
no_agent (14.769 s) : 14769000, 14769000
.   : milestone, 14769000,
appsec (14.808 s) : 14808000, 14808000
.   : milestone, 14808000,
iast (18.479 s) : 18479000, 18479000
.   : milestone, 18479000,
iast_GLOBAL (18.012 s) : 18012000, 18012000
.   : milestone, 18012000,
profiling (14.904 s) : 14904000, 14904000
.   : milestone, 14904000,
tracing (14.771 s) : 14771000, 14771000
.   : milestone, 14771000,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.063 s [15.063 s, 15.063 s]	-
appsec	14.99 s [14.99 s, 14.99 s]	-73.0 ms (-0.5%)
iast	18.325 s [18.325 s, 18.325 s]	3.262 s (21.7%)
iast_GLOBAL	17.657 s [17.657 s, 17.657 s]	2.594 s (17.2%)
profiling	15.245 s [15.245 s, 15.245 s]	182.0 ms (1.2%)
tracing	14.7 s [14.7 s, 14.7 s]	-363.0 ms (-2.4%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	14.769 s [14.769 s, 14.769 s]	-
appsec	14.808 s [14.808 s, 14.808 s]	39.0 ms (0.3%)
iast	18.479 s [18.479 s, 18.479 s]	3.71 s (25.1%)
iast_GLOBAL	18.012 s [18.012 s, 18.012 s]	3.243 s (22.0%)
profiling	14.904 s [14.904 s, 14.904 s]	135.0 ms (0.9%)
tracing	14.771 s [14.771 s, 14.771 s]	2.0 ms (0.0%)

dougqh requested a review from a team as a code owner February 19, 2026 15:38

dougqh requested a review from manuel-alvarez-alvarez February 19, 2026 15:38

dougqh added type: enhancement Enhancements and improvements comp: core Tracer core tag: performance Performance related changes labels Feb 19, 2026

dougqh added 7 commits February 19, 2026 10:39

Checking hashCode

b0a04fc

Reducing whitespace

f75da1c

Fixing ugly spotless formatting

ab70701

Fixing ugly spotless formatting

fb3ae00

Renaming benchmark method

a71b449

Clarifying Javadoc

aa070b4

grammar

fa1b8bd

dougqh changed the title ~~Adding lighter String processing methods to StringUtiils~~ Adding lighter String processing methods to Strings Feb 19, 2026

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Adding lighter String processing methods to Strings#10640

Adding lighter String processing methods to Strings#10640
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dougqh commented Feb 19, 2026

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