Avoid several per request string allocations in spring-webmvc instrumenters by amarziali · Pull Request #11363 · DataDog/dd-trace-java

amarziali · 2026-05-13T12:29:13Z

What Does This Do

Handler span keys were previously computed by concatenating "dd.handler.span." + class name (+ ".continue") on every request. These strings are now cached in a ClassValue<Pair<String, String>> keyed by handler class, so the allocation happens once per handler type rather than once per request (those allocations was on the hot path on a classical spring boot server)

Motivation

Additional Notes

Contributor Checklist

Format the title according to the contribution guidelines
Assign the type: and (comp: or inst:) labels in addition to any other useful labels
Avoid using close, fix, or any linking keywords when referencing an issue
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]

Note:Once your PR is ready to merge, add it to the merge queue by commenting /merge./merge -c cancels the queue request. /merge -f --reason "reason" skips all merge queue checks; please use this judiciously, as some checks do not run at the PR-level. For more information, see this doc.

…enters

pr-commenter · 2026-05-13T14:39:07Z

Benchmarks

Startup

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	andrea.marziali/spring-classvalue
git_commit_date	1778670337	1778675063
git_commit_sha	`71c5da0`	`f550e87`
release_version	1.63.0-SNAPSHOT~71c5da043c	1.63.0-SNAPSHOT~f550e8770a

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1778677585	1778677585
ci_job_id	1679582334	1679582334
ci_pipeline_id	112936802	112936802
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-gqk67hoi 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-gqk67hoi 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=1.63.0-SNAPSHOT~f550e8770a, baseline=1.63.0-SNAPSHOT~71c5da043c
dateFormat X
axisFormat %s
section tracing
Agent [baseline] (1.075 s) : 0, 1074648
Total [baseline] (10.923 s) : 0, 10922813
Agent [candidate] (1.082 s) : 0, 1082179
Total [candidate] (11.071 s) : 0, 11070606
section appsec
Agent [baseline] (1.271 s) : 0, 1270503
Total [baseline] (11.058 s) : 0, 11057950
Agent [candidate] (1.27 s) : 0, 1269674
Total [candidate] (11.088 s) : 0, 11088166
section iast
Agent [baseline] (1.257 s) : 0, 1256962
Total [baseline] (11.128 s) : 0, 11128215
Agent [candidate] (1.252 s) : 0, 1251725
Total [candidate] (11.122 s) : 0, 11121832
section profiling
Agent [baseline] (1.31 s) : 0, 1309870
Total [baseline] (11.105 s) : 0, 11105390
Agent [candidate] (1.316 s) : 0, 1316402
Total [candidate] (11.09 s) : 0, 11089978

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.075 s	-
Agent	appsec	1.271 s	195.854 ms (18.2%)
Agent	iast	1.257 s	182.314 ms (17.0%)
Agent	profiling	1.31 s	235.221 ms (21.9%)
Total	tracing	10.923 s	-
Total	appsec	11.058 s	135.138 ms (1.2%)
Total	iast	11.128 s	205.403 ms (1.9%)
Total	profiling	11.105 s	182.578 ms (1.7%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.082 s	-
Agent	appsec	1.27 s	187.495 ms (17.3%)
Agent	iast	1.252 s	169.546 ms (15.7%)
Agent	profiling	1.316 s	234.223 ms (21.6%)
Total	tracing	11.071 s	-
Total	appsec	11.088 s	17.56 ms (0.2%)
Total	iast	11.122 s	51.225 ms (0.5%)
Total	profiling	11.09 s	19.372 ms (0.2%)

gantt
title petclinic - break down per module: candidate=1.63.0-SNAPSHOT~f550e8770a, baseline=1.63.0-SNAPSHOT~71c5da043c
dateFormat X
axisFormat %s
section tracing
crashtracking [baseline] (1.254 ms) : 0, 1254
crashtracking [candidate] (1.252 ms) : 0, 1252
BytebuddyAgent [baseline] (642.039 ms) : 0, 642039
BytebuddyAgent [candidate] (645.79 ms) : 0, 645790
AgentMeter [baseline] (30.082 ms) : 0, 30082
AgentMeter [candidate] (30.384 ms) : 0, 30384
GlobalTracer [baseline] (249.084 ms) : 0, 249084
GlobalTracer [candidate] (251.865 ms) : 0, 251865
AppSec [baseline] (32.895 ms) : 0, 32895
AppSec [candidate] (33.34 ms) : 0, 33340
Debugger [baseline] (61.723 ms) : 0, 61723
Debugger [candidate] (63.252 ms) : 0, 63252
Remote Config [baseline] (604.721 µs) : 0, 605
Remote Config [candidate] (606.504 µs) : 0, 607
Telemetry [baseline] (9.309 ms) : 0, 9309
Telemetry [candidate] (9.357 ms) : 0, 9357
Flare Poller [baseline] (10.657 ms) : 0, 10657
Flare Poller [candidate] (9.231 ms) : 0, 9231
section appsec
crashtracking [baseline] (1.228 ms) : 0, 1228
crashtracking [candidate] (1.227 ms) : 0, 1227
BytebuddyAgent [baseline] (678.392 ms) : 0, 678392
BytebuddyAgent [candidate] (679.269 ms) : 0, 679269
AgentMeter [baseline] (12.104 ms) : 0, 12104
AgentMeter [candidate] (12.084 ms) : 0, 12084
GlobalTracer [baseline] (248.49 ms) : 0, 248490
GlobalTracer [candidate] (248.14 ms) : 0, 248140
IAST [baseline] (24.803 ms) : 0, 24803
IAST [candidate] (24.715 ms) : 0, 24715
AppSec [baseline] (185.606 ms) : 0, 185606
AppSec [candidate] (184.817 ms) : 0, 184817
Debugger [baseline] (65.576 ms) : 0, 65576
Debugger [candidate] (65.133 ms) : 0, 65133
Remote Config [baseline] (612.469 µs) : 0, 612
Remote Config [candidate] (604.256 µs) : 0, 604
Telemetry [baseline] (7.748 ms) : 0, 7748
Telemetry [candidate] (7.697 ms) : 0, 7697
Flare Poller [baseline] (9.143 ms) : 0, 9143
Flare Poller [candidate] (9.072 ms) : 0, 9072
section iast
crashtracking [baseline] (1.229 ms) : 0, 1229
crashtracking [candidate] (1.224 ms) : 0, 1224
BytebuddyAgent [baseline] (832.332 ms) : 0, 832332
BytebuddyAgent [candidate] (828.171 ms) : 0, 828171
AgentMeter [baseline] (11.503 ms) : 0, 11503
AgentMeter [candidate] (11.478 ms) : 0, 11478
GlobalTracer [baseline] (237.788 ms) : 0, 237788
GlobalTracer [candidate] (236.974 ms) : 0, 236974
IAST [baseline] (26.746 ms) : 0, 26746
IAST [candidate] (26.607 ms) : 0, 26607
AppSec [baseline] (33.303 ms) : 0, 33303
AppSec [candidate] (32.553 ms) : 0, 32553
Debugger [baseline] (65.2 ms) : 0, 65200
Debugger [candidate] (65.937 ms) : 0, 65937
Remote Config [baseline] (528.065 µs) : 0, 528
Remote Config [candidate] (538.252 µs) : 0, 538
Telemetry [baseline] (8.091 ms) : 0, 8091
Telemetry [candidate] (8.076 ms) : 0, 8076
Flare Poller [baseline] (3.373 ms) : 0, 3373
Flare Poller [candidate] (3.35 ms) : 0, 3350
section profiling
crashtracking [baseline] (531.015 µs) : 0, 531
crashtracking [candidate] (541.307 µs) : 0, 541
BytebuddyAgent [baseline] (687.32 ms) : 0, 687320
BytebuddyAgent [candidate] (692.069 ms) : 0, 692069
AgentMeter [baseline] (9.285 ms) : 0, 9285
AgentMeter [candidate] (9.371 ms) : 0, 9371
GlobalTracer [baseline] (209.467 ms) : 0, 209467
GlobalTracer [candidate] (209.372 ms) : 0, 209372
AppSec [baseline] (32.376 ms) : 0, 32376
AppSec [candidate] (32.738 ms) : 0, 32738
Debugger [baseline] (67.749 ms) : 0, 67749
Debugger [candidate] (68.109 ms) : 0, 68109
Remote Config [baseline] (578.217 µs) : 0, 578
Remote Config [candidate] (570.868 µs) : 0, 571
Telemetry [baseline] (8.091 ms) : 0, 8091
Telemetry [candidate] (8.054 ms) : 0, 8054
Flare Poller [baseline] (3.597 ms) : 0, 3597
Flare Poller [candidate] (3.604 ms) : 0, 3604
ProfilingAgent [baseline] (93.203 ms) : 0, 93203
ProfilingAgent [candidate] (94.163 ms) : 0, 94163
Profiling [baseline] (93.776 ms) : 0, 93776
Profiling [candidate] (94.733 ms) : 0, 94733

Startup time reports for insecure-bank

gantt
title insecure-bank - global startup overhead: candidate=1.63.0-SNAPSHOT~f550e8770a, baseline=1.63.0-SNAPSHOT~71c5da043c
dateFormat X
axisFormat %s
section tracing
Agent [baseline] (1.069 s) : 0, 1068865
Total [baseline] (8.848 s) : 0, 8847984
Agent [candidate] (1.069 s) : 0, 1068862
Total [candidate] (8.848 s) : 0, 8848486
section iast
Agent [baseline] (1.263 s) : 0, 1263396
Total [baseline] (9.586 s) : 0, 9586401
Agent [candidate] (1.25 s) : 0, 1249536
Total [candidate] (9.552 s) : 0, 9552493

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.069 s	-
Agent	iast	1.263 s	194.531 ms (18.2%)
Total	tracing	8.848 s	-
Total	iast	9.586 s	738.417 ms (8.3%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.069 s	-
Agent	iast	1.25 s	180.674 ms (16.9%)
Total	tracing	8.848 s	-
Total	iast	9.552 s	704.007 ms (8.0%)

gantt
title insecure-bank - break down per module: candidate=1.63.0-SNAPSHOT~f550e8770a, baseline=1.63.0-SNAPSHOT~71c5da043c
dateFormat X
axisFormat %s
section tracing
crashtracking [baseline] (1.236 ms) : 0, 1236
crashtracking [candidate] (1.222 ms) : 0, 1222
BytebuddyAgent [baseline] (640.064 ms) : 0, 640064
BytebuddyAgent [candidate] (638.565 ms) : 0, 638565
AgentMeter [baseline] (29.867 ms) : 0, 29867
AgentMeter [candidate] (29.795 ms) : 0, 29795
GlobalTracer [baseline] (247.452 ms) : 0, 247452
GlobalTracer [candidate] (248.297 ms) : 0, 248297
AppSec [baseline] (32.755 ms) : 0, 32755
AppSec [candidate] (32.745 ms) : 0, 32745
Debugger [baseline] (60.742 ms) : 0, 60742
Debugger [candidate] (62.302 ms) : 0, 62302
Remote Config [baseline] (606.963 µs) : 0, 607
Remote Config [candidate] (606.257 µs) : 0, 606
Telemetry [baseline] (9.229 ms) : 0, 9229
Telemetry [candidate] (10.011 ms) : 0, 10011
Flare Poller [baseline] (10.03 ms) : 0, 10030
Flare Poller [candidate] (8.415 ms) : 0, 8415
section iast
crashtracking [baseline] (1.239 ms) : 0, 1239
crashtracking [candidate] (1.231 ms) : 0, 1231
BytebuddyAgent [baseline] (838.028 ms) : 0, 838028
BytebuddyAgent [candidate] (827.438 ms) : 0, 827438
AgentMeter [baseline] (11.603 ms) : 0, 11603
AgentMeter [candidate] (11.405 ms) : 0, 11405
GlobalTracer [baseline] (238.97 ms) : 0, 238970
GlobalTracer [candidate] (236.578 ms) : 0, 236578
IAST [baseline] (26.987 ms) : 0, 26987
IAST [candidate] (26.676 ms) : 0, 26676
AppSec [baseline] (33.379 ms) : 0, 33379
AppSec [candidate] (32.47 ms) : 0, 32470
Debugger [baseline] (64.44 ms) : 0, 64440
Debugger [candidate] (65.075 ms) : 0, 65075
Remote Config [baseline] (543.291 µs) : 0, 543
Remote Config [candidate] (534.654 µs) : 0, 535
Telemetry [baseline] (7.982 ms) : 0, 7982
Telemetry [candidate] (7.943 ms) : 0, 7943
Flare Poller [baseline] (3.363 ms) : 0, 3363
Flare Poller [candidate] (3.392 ms) : 0, 3392

Load

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	andrea.marziali/spring-classvalue
git_commit_date	1778670337	1778675063
git_commit_sha	`71c5da0`	`f550e87`
release_version	1.63.0-SNAPSHOT~71c5da043c	1.63.0-SNAPSHOT~f550e8770a

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1778685189	1778685189
ci_job_id	1680231878	1680231878
ci_pipeline_id	112936802	112936802
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-0-6wjq3rpc 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-0-6wjq3rpc 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 0 performance regressions! Performance is the same for 20 metrics, 15 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:code_origins:high_load	better [-1429.793µs; -405.667µs] or [-7.754%; -2.200%]	unsure [-2.118ms; -0.268ms] or [-7.038%; -0.890%]	unstable [-19.440op/s; +38.753op/s] or [-7.810%; +15.569%]	17.522ms	28.906ms	258.562op/s	18.440ms	30.099ms	248.906op/s

Request duration reports for petclinic

gantt
title petclinic - request duration [CI 0.99] : candidate=1.63.0-SNAPSHOT~f550e8770a, baseline=1.63.0-SNAPSHOT~71c5da043c
dateFormat X
axisFormat %s
section baseline
no_agent (18.97 ms) : 18785, 19155
. : milestone, 18970,
appsec (18.291 ms) : 18107, 18475
. : milestone, 18291,
code_origins (18.757 ms) : 18566, 18947
. : milestone, 18757,
iast (17.917 ms) : 17741, 18093
. : milestone, 17917,
profiling (18.095 ms) : 17914, 18276
. : milestone, 18095,
tracing (18.186 ms) : 18004, 18369
. : milestone, 18186,
section candidate
no_agent (19.172 ms) : 18979, 19365
. : milestone, 19172,
appsec (18.46 ms) : 18278, 18642
. : milestone, 18460,
code_origins (18.048 ms) : 17865, 18230
. : milestone, 18048,
iast (17.867 ms) : 17689, 18045
. : milestone, 17867,
profiling (18.437 ms) : 18253, 18620
. : milestone, 18437,
tracing (17.929 ms) : 17752, 18106
. : milestone, 17929,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	18.97 ms [18.785 ms, 19.155 ms]	-
appsec	18.291 ms [18.107 ms, 18.475 ms]	-679.364 µs (-3.6%)
code_origins	18.757 ms [18.566 ms, 18.947 ms]	-213.516 µs (-1.1%)
iast	17.917 ms [17.741 ms, 18.093 ms]	-1.053 ms (-5.6%)
profiling	18.095 ms [17.914 ms, 18.276 ms]	-875.321 µs (-4.6%)
tracing	18.186 ms [18.004 ms, 18.369 ms]	-783.849 µs (-4.1%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	19.172 ms [18.979 ms, 19.365 ms]	-
appsec	18.46 ms [18.278 ms, 18.642 ms]	-712.411 µs (-3.7%)
code_origins	18.048 ms [17.865 ms, 18.23 ms]	-1.124 ms (-5.9%)
iast	17.867 ms [17.689 ms, 18.045 ms]	-1.305 ms (-6.8%)
profiling	18.437 ms [18.253 ms, 18.62 ms]	-735.467 µs (-3.8%)
tracing	17.929 ms [17.752 ms, 18.106 ms]	-1.243 ms (-6.5%)

Request duration reports for insecure-bank

gantt
title insecure-bank - request duration [CI 0.99] : candidate=1.63.0-SNAPSHOT~f550e8770a, baseline=1.63.0-SNAPSHOT~71c5da043c
dateFormat X
axisFormat %s
section baseline
no_agent (1.274 ms) : 1262, 1286
. : milestone, 1274,
iast (3.403 ms) : 3354, 3452
. : milestone, 3403,
iast_FULL (5.908 ms) : 5849, 5968
. : milestone, 5908,
iast_GLOBAL (3.556 ms) : 3506, 3607
. : milestone, 3556,
profiling (2.155 ms) : 2135, 2175
. : milestone, 2155,
tracing (1.885 ms) : 1870, 1901
. : milestone, 1885,
section candidate
no_agent (1.274 ms) : 1262, 1287
. : milestone, 1274,
iast (3.373 ms) : 3327, 3418
. : milestone, 3373,
iast_FULL (5.98 ms) : 5919, 6040
. : milestone, 5980,
iast_GLOBAL (3.527 ms) : 3474, 3580
. : milestone, 3527,
profiling (2.243 ms) : 2222, 2265
. : milestone, 2243,
tracing (1.881 ms) : 1866, 1896
. : milestone, 1881,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.274 ms [1.262 ms, 1.286 ms]	-
iast	3.403 ms [3.354 ms, 3.452 ms]	2.129 ms (167.2%)
iast_FULL	5.908 ms [5.849 ms, 5.968 ms]	4.635 ms (363.9%)
iast_GLOBAL	3.556 ms [3.506 ms, 3.607 ms]	2.283 ms (179.2%)
profiling	2.155 ms [2.135 ms, 2.175 ms]	881.688 µs (69.2%)
tracing	1.885 ms [1.87 ms, 1.901 ms]	611.663 µs (48.0%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.274 ms [1.262 ms, 1.287 ms]	-
iast	3.373 ms [3.327 ms, 3.418 ms]	2.098 ms (164.6%)
iast_FULL	5.98 ms [5.919 ms, 6.04 ms]	4.705 ms (369.2%)
iast_GLOBAL	3.527 ms [3.474 ms, 3.58 ms]	2.252 ms (176.7%)
profiling	2.243 ms [2.222 ms, 2.265 ms]	968.856 µs (76.0%)
tracing	1.881 ms [1.866 ms, 1.896 ms]	606.258 µs (47.6%)

Dacapo

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	andrea.marziali/spring-classvalue
git_commit_date	1778670337	1778675063
git_commit_sha	`71c5da0`	`f550e87`
release_version	1.63.0-SNAPSHOT~71c5da043c	1.63.0-SNAPSHOT~f550e8770a

See matching parameters

	Baseline	Candidate
application	biojava	biojava
ci_job_date	1778677765	1778677765
ci_job_id	1679582349	1679582349
ci_pipeline_id	112936802	112936802
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-nzcfaz3b 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-nzcfaz3b 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 tomcat

gantt
title tomcat - execution time [CI 0.99] : candidate=1.63.0-SNAPSHOT~f550e8770a, baseline=1.63.0-SNAPSHOT~71c5da043c
dateFormat X
axisFormat %s
section baseline
no_agent (1.488 ms) : 1476, 1499
. : milestone, 1488,
appsec (3.822 ms) : 3603, 4042
. : milestone, 3822,
iast (2.275 ms) : 2206, 2345
. : milestone, 2275,
iast_GLOBAL (2.322 ms) : 2252, 2392
. : milestone, 2322,
profiling (2.525 ms) : 2360, 2690
. : milestone, 2525,
tracing (2.074 ms) : 2020, 2127
. : milestone, 2074,
section candidate
no_agent (1.488 ms) : 1476, 1500
. : milestone, 1488,
appsec (3.818 ms) : 3595, 4041
. : milestone, 3818,
iast (2.267 ms) : 2197, 2336
. : milestone, 2267,
iast_GLOBAL (2.321 ms) : 2251, 2391
. : milestone, 2321,
profiling (2.106 ms) : 2051, 2161
. : milestone, 2106,
tracing (2.084 ms) : 2031, 2137
. : milestone, 2084,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.488 ms [1.476 ms, 1.499 ms]	-
appsec	3.822 ms [3.603 ms, 4.042 ms]	2.335 ms (156.9%)
iast	2.275 ms [2.206 ms, 2.345 ms]	787.392 µs (52.9%)
iast_GLOBAL	2.322 ms [2.252 ms, 2.392 ms]	833.725 µs (56.0%)
profiling	2.525 ms [2.36 ms, 2.69 ms]	1.037 ms (69.7%)
tracing	2.074 ms [2.02 ms, 2.127 ms]	585.835 µs (39.4%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.488 ms [1.476 ms, 1.5 ms]	-
appsec	3.818 ms [3.595 ms, 4.041 ms]	2.33 ms (156.6%)
iast	2.267 ms [2.197 ms, 2.336 ms]	778.619 µs (52.3%)
iast_GLOBAL	2.321 ms [2.251 ms, 2.391 ms]	833.086 µs (56.0%)
profiling	2.106 ms [2.051 ms, 2.161 ms]	618.114 µs (41.5%)
tracing	2.084 ms [2.031 ms, 2.137 ms]	595.977 µs (40.1%)

Execution time for biojava

gantt
title biojava - execution time [CI 0.99] : candidate=1.63.0-SNAPSHOT~f550e8770a, baseline=1.63.0-SNAPSHOT~71c5da043c
dateFormat X
axisFormat %s
section baseline
no_agent (15.584 s) : 15584000, 15584000
. : milestone, 15584000,
appsec (14.695 s) : 14695000, 14695000
. : milestone, 14695000,
iast (18.87 s) : 18870000, 18870000
. : milestone, 18870000,
iast_GLOBAL (17.907 s) : 17907000, 17907000
. : milestone, 17907000,
profiling (15.5 s) : 15500000, 15500000
. : milestone, 15500000,
tracing (14.711 s) : 14711000, 14711000
. : milestone, 14711000,
section candidate
no_agent (15.511 s) : 15511000, 15511000
. : milestone, 15511000,
appsec (14.69 s) : 14690000, 14690000
. : milestone, 14690000,
iast (18.648 s) : 18648000, 18648000
. : milestone, 18648000,
iast_GLOBAL (18.089 s) : 18089000, 18089000
. : milestone, 18089000,
profiling (14.489 s) : 14489000, 14489000
. : milestone, 14489000,
tracing (14.661 s) : 14661000, 14661000
. : milestone, 14661000,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.584 s [15.584 s, 15.584 s]	-
appsec	14.695 s [14.695 s, 14.695 s]	-889.0 ms (-5.7%)
iast	18.87 s [18.87 s, 18.87 s]	3.286 s (21.1%)
iast_GLOBAL	17.907 s [17.907 s, 17.907 s]	2.323 s (14.9%)
profiling	15.5 s [15.5 s, 15.5 s]	-84.0 ms (-0.5%)
tracing	14.711 s [14.711 s, 14.711 s]	-873.0 ms (-5.6%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.511 s [15.511 s, 15.511 s]	-
appsec	14.69 s [14.69 s, 14.69 s]	-821.0 ms (-5.3%)
iast	18.648 s [18.648 s, 18.648 s]	3.137 s (20.2%)
iast_GLOBAL	18.089 s [18.089 s, 18.089 s]	2.578 s (16.6%)
profiling	14.489 s [14.489 s, 14.489 s]	-1.022 s (-6.6%)
tracing	14.661 s [14.661 s, 14.661 s]	-850.0 ms (-5.5%)

Avoid several per request string allocations in spring-webmvc instrum…
f550e87
…enters

amarziali requested a review from a team as a code owner May 13, 2026 12:29

amarziali added type: feature Enhancements and improvements tag: performance Performance related changes inst: spring Spring instrumentation labels May 13, 2026

amarziali marked this pull request as draft May 13, 2026 16:14

amarziali closed this May 18, 2026

Navigation Menu

Uh oh!

Avoid several per request string allocations in spring-webmvc instrumenters - #11363

Avoid several per request string allocations in spring-webmvc instrumenters#11363
amarziali wants to merge 1 commit into
masterfrom
andrea.marziali/spring-classvalue

amarziali commented May 13, 2026

Uh oh!

pr-commenterBot commented May 13, 2026•
edited
Loading

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

1 participant

Uh oh!

Conversation

amarziali commented May 13, 2026

What Does This Do

Motivation

Additional Notes

Contributor Checklist

Uh oh!

pr-commenterBot commented May 13, 2026• edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Benchmarks

Startup

Parameters

Summary

Load

Parameters

Summary

Dacapo

Parameters

Summary

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

1 participant

pr-commenterBot commented May 13, 2026•
edited
Loading