Caching the primaryInstrumentationName #10477

dougqh · 2026-01-29T22:16:13Z

What Does This Do

Caching the primaryInstrumentationName to avoid repeatedly calling instrumentationNames and constantly allocating a String[]

Motivation

Avoid repetitive work and memory allocation

Additional Notes

The high load benchmarks are known to be flaky, but I wanted to double check the regressions anyway.
In a local load test, this change performed as expected...

equal to master on Spring PetClinic 64MiB heap
slightly than master on Spring PetClinic 256 MiB heap

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Jira ticket: [PROJ-IDENT]

Caching the primaryInstrumentationName to avoid repeatedly calling instrumentationNames() and constantly allocating a String[]

github-actions · 2026-01-29T22:16:23Z

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pr-commenter · 2026-01-29T23:03:21Z

Benchmarks

Startup

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	dougqh/cache-primary-instrumentation-name
git_commit_date	1769786158	1769788714
git_commit_sha	`93b3199`	`46337ee`
release_version	1.59.0-SNAPSHOT~93b3199d7c	1.59.0-SNAPSHOT~46337eed2a

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1769790499	1769790499
ci_job_id	1390231883	1390231883
ci_pipeline_id	93833952	93833952
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-foji7b8k 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-foji7b8k 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 63 metrics, 8 unstable metrics.

Startup time reports for insecure-bank

gantt
    title insecure-bank - global startup overhead: candidate=1.59.0-SNAPSHOT~46337eed2a, baseline=1.59.0-SNAPSHOT~93b3199d7c

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.057 s) : 0, 1056507
Total [baseline] (8.72 s) : 0, 8720414
Agent [candidate] (1.057 s) : 0, 1056864
Total [candidate] (8.745 s) : 0, 8744777
section iast
Agent [baseline] (1.222 s) : 0, 1221687
Total [baseline] (9.335 s) : 0, 9334723
Agent [candidate] (1.238 s) : 0, 1237903
Total [candidate] (9.388 s) : 0, 9387855

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.057 s	-
Agent	iast	1.222 s	165.179 ms (15.6%)
Total	tracing	8.72 s	-
Total	iast	9.335 s	614.309 ms (7.0%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.057 s	-
Agent	iast	1.238 s	181.039 ms (17.1%)
Total	tracing	8.745 s	-
Total	iast	9.388 s	643.079 ms (7.4%)

gantt
    title insecure-bank - break down per module: candidate=1.59.0-SNAPSHOT~46337eed2a, baseline=1.59.0-SNAPSHOT~93b3199d7c

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.188 ms) : 0, 1188
crashtracking [candidate] (1.184 ms) : 0, 1184
BytebuddyAgent [baseline] (622.501 ms) : 0, 622501
BytebuddyAgent [candidate] (623.84 ms) : 0, 623840
AgentMeter [baseline] (28.741 ms) : 0, 28741
AgentMeter [candidate] (28.626 ms) : 0, 28626
GlobalTracer [baseline] (257.15 ms) : 0, 257150
GlobalTracer [candidate] (257.047 ms) : 0, 257047
AppSec [baseline] (32.826 ms) : 0, 32826
AppSec [candidate] (33.076 ms) : 0, 33076
Debugger [baseline] (62.753 ms) : 0, 62753
Debugger [candidate] (59.396 ms) : 0, 59396
Remote Config [baseline] (600.673 µs) : 0, 601
Remote Config [candidate] (620.484 µs) : 0, 620
Telemetry [baseline] (9.062 ms) : 0, 9062
Telemetry [candidate] (11.419 ms) : 0, 11419
Flare Poller [baseline] (6.197 ms) : 0, 6197
Flare Poller [candidate] (6.066 ms) : 0, 6066
section iast
crashtracking [baseline] (1.177 ms) : 0, 1177
crashtracking [candidate] (1.2 ms) : 0, 1200
BytebuddyAgent [baseline] (788.088 ms) : 0, 788088
BytebuddyAgent [candidate] (800.377 ms) : 0, 800377
AgentMeter [baseline] (11.162 ms) : 0, 11162
AgentMeter [candidate] (11.277 ms) : 0, 11277
GlobalTracer [baseline] (247.06 ms) : 0, 247060
GlobalTracer [candidate] (249.865 ms) : 0, 249865
AppSec [baseline] (33.892 ms) : 0, 33892
AppSec [candidate] (33.192 ms) : 0, 33192
Debugger [baseline] (65.653 ms) : 0, 65653
Debugger [candidate] (66.673 ms) : 0, 66673
Remote Config [baseline] (545.667 µs) : 0, 546
Remote Config [candidate] (550.291 µs) : 0, 550
Telemetry [baseline] (8.544 ms) : 0, 8544
Telemetry [candidate] (8.606 ms) : 0, 8606
Flare Poller [baseline] (3.523 ms) : 0, 3523
Flare Poller [candidate] (3.52 ms) : 0, 3520
IAST [baseline] (26.676 ms) : 0, 26676
IAST [candidate] (26.995 ms) : 0, 26995

Startup time reports for petclinic

gantt
    title petclinic - global startup overhead: candidate=1.59.0-SNAPSHOT~46337eed2a, baseline=1.59.0-SNAPSHOT~93b3199d7c

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.061 s) : 0, 1060674
Total [baseline] (10.952 s) : 0, 10951978
Agent [candidate] (1.06 s) : 0, 1060393
Total [candidate] (10.974 s) : 0, 10974349
section appsec
Agent [baseline] (1.239 s) : 0, 1239233
Total [baseline] (11.025 s) : 0, 11024647
Agent [candidate] (1.234 s) : 0, 1233731
Total [candidate] (11.132 s) : 0, 11131759
section iast
Agent [baseline] (1.231 s) : 0, 1230577
Total [baseline] (11.144 s) : 0, 11143814
Agent [candidate] (1.228 s) : 0, 1228043
Total [candidate] (11.141 s) : 0, 11140574
section profiling
Agent [baseline] (1.194 s) : 0, 1194150
Total [baseline] (10.971 s) : 0, 10971216
Agent [candidate] (1.186 s) : 0, 1185632
Total [candidate] (10.852 s) : 0, 10851821

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.061 s	-
Agent	appsec	1.239 s	178.559 ms (16.8%)
Agent	iast	1.231 s	169.903 ms (16.0%)
Agent	profiling	1.194 s	133.476 ms (12.6%)
Total	tracing	10.952 s	-
Total	appsec	11.025 s	72.669 ms (0.7%)
Total	iast	11.144 s	191.836 ms (1.8%)
Total	profiling	10.971 s	19.238 ms (0.2%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.06 s	-
Agent	appsec	1.234 s	173.339 ms (16.3%)
Agent	iast	1.228 s	167.65 ms (15.8%)
Agent	profiling	1.186 s	125.239 ms (11.8%)
Total	tracing	10.974 s	-
Total	appsec	11.132 s	157.41 ms (1.4%)
Total	iast	11.141 s	166.225 ms (1.5%)
Total	profiling	10.852 s	-122.528 ms (-1.1%)

gantt
    title petclinic - break down per module: candidate=1.59.0-SNAPSHOT~46337eed2a, baseline=1.59.0-SNAPSHOT~93b3199d7c

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.175 ms) : 0, 1175
crashtracking [candidate] (1.18 ms) : 0, 1180
BytebuddyAgent [baseline] (623.81 ms) : 0, 623810
BytebuddyAgent [candidate] (623.525 ms) : 0, 623525
AgentMeter [baseline] (28.782 ms) : 0, 28782
AgentMeter [candidate] (28.739 ms) : 0, 28739
GlobalTracer [baseline] (257.299 ms) : 0, 257299
GlobalTracer [candidate] (257.163 ms) : 0, 257163
AppSec [baseline] (33.018 ms) : 0, 33018
AppSec [candidate] (32.874 ms) : 0, 32874
Debugger [baseline] (62.017 ms) : 0, 62017
Debugger [candidate] (60.308 ms) : 0, 60308
Remote Config [baseline] (608.8 µs) : 0, 609
Remote Config [candidate] (627.825 µs) : 0, 628
Telemetry [baseline] (9.315 ms) : 0, 9315
Telemetry [candidate] (10.762 ms) : 0, 10762
Flare Poller [baseline] (9.26 ms) : 0, 9260
Flare Poller [candidate] (9.827 ms) : 0, 9827
section appsec
crashtracking [baseline] (1.19 ms) : 0, 1190
crashtracking [candidate] (1.178 ms) : 0, 1178
BytebuddyAgent [baseline] (657.164 ms) : 0, 657164
BytebuddyAgent [candidate] (652.728 ms) : 0, 652728
AgentMeter [baseline] (11.915 ms) : 0, 11915
AgentMeter [candidate] (11.786 ms) : 0, 11786
GlobalTracer [baseline] (258.839 ms) : 0, 258839
GlobalTracer [candidate] (257.396 ms) : 0, 257396
AppSec [baseline] (168.809 ms) : 0, 168809
AppSec [candidate] (167.572 ms) : 0, 167572
Debugger [baseline] (66.943 ms) : 0, 66943
Debugger [candidate] (68.284 ms) : 0, 68284
Remote Config [baseline] (655.73 µs) : 0, 656
Remote Config [candidate] (683.095 µs) : 0, 683
Telemetry [baseline] (9.181 ms) : 0, 9181
Telemetry [candidate] (9.481 ms) : 0, 9481
Flare Poller [baseline] (3.55 ms) : 0, 3550
Flare Poller [candidate] (3.703 ms) : 0, 3703
IAST [baseline] (25.573 ms) : 0, 25573
IAST [candidate] (25.615 ms) : 0, 25615
section iast
crashtracking [baseline] (1.185 ms) : 0, 1185
crashtracking [candidate] (1.174 ms) : 0, 1174
BytebuddyAgent [baseline] (793.513 ms) : 0, 793513
BytebuddyAgent [candidate] (791.937 ms) : 0, 791937
AgentMeter [baseline] (11.2 ms) : 0, 11200
AgentMeter [candidate] (11.199 ms) : 0, 11199
GlobalTracer [baseline] (248.719 ms) : 0, 248719
GlobalTracer [candidate] (248.445 ms) : 0, 248445
AppSec [baseline] (33.886 ms) : 0, 33886
AppSec [candidate] (34.707 ms) : 0, 34707
Debugger [baseline] (67.123 ms) : 0, 67123
Debugger [candidate] (65.697 ms) : 0, 65697
Remote Config [baseline] (555.994 µs) : 0, 556
Remote Config [candidate] (544.178 µs) : 0, 544
Telemetry [baseline] (8.551 ms) : 0, 8551
Telemetry [candidate] (8.593 ms) : 0, 8593
Flare Poller [baseline] (3.504 ms) : 0, 3504
Flare Poller [candidate] (3.511 ms) : 0, 3511
IAST [baseline] (26.93 ms) : 0, 26930
IAST [candidate] (26.926 ms) : 0, 26926
section profiling
crashtracking [baseline] (1.221 ms) : 0, 1221
crashtracking [candidate] (1.225 ms) : 0, 1225
BytebuddyAgent [baseline] (682.232 ms) : 0, 682232
BytebuddyAgent [candidate] (677.715 ms) : 0, 677715
AgentMeter [baseline] (8.766 ms) : 0, 8766
AgentMeter [candidate] (8.635 ms) : 0, 8635
GlobalTracer [baseline] (218.0 ms) : 0, 218000
GlobalTracer [candidate] (216.318 ms) : 0, 216318
AppSec [baseline] (32.786 ms) : 0, 32786
AppSec [candidate] (32.194 ms) : 0, 32194
Debugger [baseline] (68.508 ms) : 0, 68508
Debugger [candidate] (67.542 ms) : 0, 67542
Remote Config [baseline] (593.218 µs) : 0, 593
Remote Config [candidate] (593.448 µs) : 0, 593
Telemetry [baseline] (8.694 ms) : 0, 8694
Telemetry [candidate] (8.706 ms) : 0, 8706
Flare Poller [baseline] (3.781 ms) : 0, 3781
Flare Poller [candidate] (3.74 ms) : 0, 3740
ProfilingAgent [baseline] (99.434 ms) : 0, 99434
ProfilingAgent [candidate] (98.739 ms) : 0, 98739
Profiling [baseline] (100.004 ms) : 0, 100004
Profiling [candidate] (99.308 ms) : 0, 99308

Load

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	dougqh/cache-primary-instrumentation-name
git_commit_date	1769786158	1769788714
git_commit_sha	`93b3199`	`46337ee`
release_version	1.59.0-SNAPSHOT~93b3199d7c	1.59.0-SNAPSHOT~46337eed2a

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1769791082	1769791082
ci_job_id	1390231888	1390231888
ci_pipeline_id	93833952	93833952
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-1-2v80lqnk 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-1-2v80lqnk 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 4 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	worse [+114.116µs; +193.687µs] or [+4.324%; +7.338%]	worse [+286.272µs; +613.599µs] or [+3.863%; +8.280%]	unstable [-204.527op/s; +70.464op/s] or [-14.946%; +5.149%]	2.793ms	7.861ms	1301.438op/s	2.639ms	7.411ms	1368.469op/s
scenario:load:insecure-bank:profiling:high_load	worse [+65.526µs; +194.538µs] or [+3.950%; +11.728%]	unstable [+212.372µs; +1224.901µs] or [+4.327%; +24.955%]	unstable [-480.567op/s; -13.871op/s] or [-22.124%; -0.639%]	1.789ms	5.627ms	1924.969op/s	1.659ms	4.908ms	2172.188op/s
scenario:load:petclinic:tracing:high_load	worse [+359.842µs; +899.298µs] or [+2.123%; +5.306%]	same [-127.149µs; +1000.937µs] or [-0.451%; +3.550%]	unstable [-32.558op/s; +21.995op/s] or [-12.177%; +8.226%]	17.578ms	28.635ms	262.094op/s	16.948ms	28.198ms	267.375op/s

Request duration reports for insecure-bank

gantt
    title insecure-bank - request duration [CI 0.99] : candidate=1.59.0-SNAPSHOT~46337eed2a, baseline=1.59.0-SNAPSHOT~93b3199d7c
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.188 ms) : 1176, 1200
.   : milestone, 1188,
iast (3.134 ms) : 3090, 3177
.   : milestone, 3134,
iast_FULL (5.594 ms) : 5539, 5650
.   : milestone, 5594,
iast_GLOBAL (3.346 ms) : 3297, 3395
.   : milestone, 3346,
profiling (2.081 ms) : 2061, 2102
.   : milestone, 2081,
tracing (1.905 ms) : 1888, 1922
.   : milestone, 1905,
section candidate
no_agent (1.173 ms) : 1162, 1185
.   : milestone, 1173,
iast (3.138 ms) : 3095, 3181
.   : milestone, 3138,
iast_FULL (5.747 ms) : 5689, 5805
.   : milestone, 5747,
iast_GLOBAL (3.521 ms) : 3467, 3575
.   : milestone, 3521,
profiling (2.356 ms) : 2332, 2380
.   : milestone, 2356,
tracing (1.806 ms) : 1791, 1822
.   : milestone, 1806,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.188 ms [1.176 ms, 1.2 ms]	-
iast	3.134 ms [3.09 ms, 3.177 ms]	1.946 ms (163.8%)
iast_FULL	5.594 ms [5.539 ms, 5.65 ms]	4.406 ms (370.9%)
iast_GLOBAL	3.346 ms [3.297 ms, 3.395 ms]	2.158 ms (181.7%)
profiling	2.081 ms [2.061 ms, 2.102 ms]	893.142 µs (75.2%)
tracing	1.905 ms [1.888 ms, 1.922 ms]	716.907 µs (60.3%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.173 ms [1.162 ms, 1.185 ms]	-
iast	3.138 ms [3.095 ms, 3.181 ms]	1.964 ms (167.4%)
iast_FULL	5.747 ms [5.689 ms, 5.805 ms]	4.574 ms (389.7%)
iast_GLOBAL	3.521 ms [3.467 ms, 3.575 ms]	2.348 ms (200.1%)
profiling	2.356 ms [2.332 ms, 2.38 ms]	1.183 ms (100.8%)
tracing	1.806 ms [1.791 ms, 1.822 ms]	632.624 µs (53.9%)

Request duration reports for petclinic

gantt
    title petclinic - request duration [CI 0.99] : candidate=1.59.0-SNAPSHOT~46337eed2a, baseline=1.59.0-SNAPSHOT~93b3199d7c
    dateFormat X
    axisFormat %s
section baseline
no_agent (18.188 ms) : 18004, 18371
.   : milestone, 18188,
appsec (18.604 ms) : 18416, 18792
.   : milestone, 18604,
code_origins (18.335 ms) : 18151, 18519
.   : milestone, 18335,
iast (17.834 ms) : 17656, 18012
.   : milestone, 17834,
profiling (19.036 ms) : 18847, 19225
.   : milestone, 19036,
tracing (17.453 ms) : 17281, 17625
.   : milestone, 17453,
section candidate
no_agent (19.047 ms) : 18858, 19236
.   : milestone, 19047,
appsec (18.451 ms) : 18264, 18638
.   : milestone, 18451,
code_origins (17.578 ms) : 17405, 17752
.   : milestone, 17578,
iast (17.774 ms) : 17598, 17950
.   : milestone, 17774,
profiling (18.756 ms) : 18570, 18943
.   : milestone, 18756,
tracing (17.806 ms) : 17629, 17983
.   : milestone, 17806,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	18.188 ms [18.004 ms, 18.371 ms]	-
appsec	18.604 ms [18.416 ms, 18.792 ms]	416.128 µs (2.3%)
code_origins	18.335 ms [18.151 ms, 18.519 ms]	147.089 µs (0.8%)
iast	17.834 ms [17.656 ms, 18.012 ms]	-353.669 µs (-1.9%)
profiling	19.036 ms [18.847 ms, 19.225 ms]	848.436 µs (4.7%)
tracing	17.453 ms [17.281 ms, 17.625 ms]	-735.016 µs (-4.0%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	19.047 ms [18.858 ms, 19.236 ms]	-
appsec	18.451 ms [18.264 ms, 18.638 ms]	-595.999 µs (-3.1%)
code_origins	17.578 ms [17.405 ms, 17.752 ms]	-1.468 ms (-7.7%)
iast	17.774 ms [17.598 ms, 17.95 ms]	-1.272 ms (-6.7%)
profiling	18.756 ms [18.57 ms, 18.943 ms]	-290.346 µs (-1.5%)
tracing	17.806 ms [17.629 ms, 17.983 ms]	-1.241 ms (-6.5%)

Dacapo

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	dougqh/cache-primary-instrumentation-name
git_commit_date	1769786158	1769788714
git_commit_sha	`93b3199`	`46337ee`
release_version	1.59.0-SNAPSHOT~93b3199d7c	1.59.0-SNAPSHOT~46337eed2a

See matching parameters

	Baseline	Candidate
application	biojava	biojava
ci_job_date	1769790807	1769790807
ci_job_id	1390231889	1390231889
ci_pipeline_id	93833952	93833952
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-ro7tui0z 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-ro7tui0z 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=1.59.0-SNAPSHOT~46337eed2a, baseline=1.59.0-SNAPSHOT~93b3199d7c
    dateFormat X
    axisFormat %s
section baseline
no_agent (17.133 s) : 17133000, 17133000
.   : milestone, 17133000,
appsec (15.373 s) : 15373000, 15373000
.   : milestone, 15373000,
iast (18.314 s) : 18314000, 18314000
.   : milestone, 18314000,
iast_GLOBAL (17.839 s) : 17839000, 17839000
.   : milestone, 17839000,
profiling (14.967 s) : 14967000, 14967000
.   : milestone, 14967000,
tracing (14.598 s) : 14598000, 14598000
.   : milestone, 14598000,
section candidate
no_agent (15.164 s) : 15164000, 15164000
.   : milestone, 15164000,
appsec (15.021 s) : 15021000, 15021000
.   : milestone, 15021000,
iast (18.136 s) : 18136000, 18136000
.   : milestone, 18136000,
iast_GLOBAL (17.842 s) : 17842000, 17842000
.   : milestone, 17842000,
profiling (15.038 s) : 15038000, 15038000
.   : milestone, 15038000,
tracing (14.696 s) : 14696000, 14696000
.   : milestone, 14696000,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	17.133 s [17.133 s, 17.133 s]	-
appsec	15.373 s [15.373 s, 15.373 s]	-1.76 s (-10.3%)
iast	18.314 s [18.314 s, 18.314 s]	1.181 s (6.9%)
iast_GLOBAL	17.839 s [17.839 s, 17.839 s]	706.0 ms (4.1%)
profiling	14.967 s [14.967 s, 14.967 s]	-2.166 s (-12.6%)
tracing	14.598 s [14.598 s, 14.598 s]	-2.535 s (-14.8%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.164 s [15.164 s, 15.164 s]	-
appsec	15.021 s [15.021 s, 15.021 s]	-143.0 ms (-0.9%)
iast	18.136 s [18.136 s, 18.136 s]	2.972 s (19.6%)
iast_GLOBAL	17.842 s [17.842 s, 17.842 s]	2.678 s (17.7%)
profiling	15.038 s [15.038 s, 15.038 s]	-126.0 ms (-0.8%)
tracing	14.696 s [14.696 s, 14.696 s]	-468.0 ms (-3.1%)

Execution time for tomcat

gantt
    title tomcat - execution time [CI 0.99] : candidate=1.59.0-SNAPSHOT~46337eed2a, baseline=1.59.0-SNAPSHOT~93b3199d7c
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.473 ms) : 1461, 1484
.   : milestone, 1473,
appsec (2.488 ms) : 2434, 2543
.   : milestone, 2488,
iast (2.243 ms) : 2174, 2312
.   : milestone, 2243,
iast_GLOBAL (2.287 ms) : 2218, 2356
.   : milestone, 2287,
profiling (2.499 ms) : 2336, 2663
.   : milestone, 2499,
tracing (2.052 ms) : 1999, 2105
.   : milestone, 2052,
section candidate
no_agent (1.465 ms) : 1454, 1477
.   : milestone, 1465,
appsec (3.685 ms) : 3469, 3901
.   : milestone, 3685,
iast (2.251 ms) : 2182, 2320
.   : milestone, 2251,
iast_GLOBAL (2.283 ms) : 2214, 2352
.   : milestone, 2283,
profiling (2.493 ms) : 2330, 2656
.   : milestone, 2493,
tracing (2.058 ms) : 2004, 2111
.   : milestone, 2058,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.473 ms [1.461 ms, 1.484 ms]	-
appsec	2.488 ms [2.434 ms, 2.543 ms]	1.016 ms (69.0%)
iast	2.243 ms [2.174 ms, 2.312 ms]	770.081 µs (52.3%)
iast_GLOBAL	2.287 ms [2.218 ms, 2.356 ms]	814.406 µs (55.3%)
profiling	2.499 ms [2.336 ms, 2.663 ms]	1.027 ms (69.7%)
tracing	2.052 ms [1.999 ms, 2.105 ms]	579.063 µs (39.3%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.465 ms [1.454 ms, 1.477 ms]	-
appsec	3.685 ms [3.469 ms, 3.901 ms]	2.22 ms (151.5%)
iast	2.251 ms [2.182 ms, 2.32 ms]	785.479 µs (53.6%)
iast_GLOBAL	2.283 ms [2.214 ms, 2.352 ms]	817.68 µs (55.8%)
profiling	2.493 ms [2.33 ms, 2.656 ms]	1.027 ms (70.1%)
tracing	2.058 ms [2.004 ms, 2.111 ms]	592.421 µs (40.4%)

Caching the primaryInstrumentationName

022eb63

Caching the primaryInstrumentationName to avoid repeatedly calling instrumentationNames() and constantly allocating a String[]

dougqh requested a review from a team as a code owner January 29, 2026 22:16

dougqh added inst:servlet Servlet instrumentation tag: performance Performance related changes type: enhancement Enhancements and improvements labels Jan 29, 2026

Merge branch 'master' into dougqh/cache-primary-instrumentation-name

46337ee

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Caching the primaryInstrumentationName #10477

Caching the primaryInstrumentationName #10477

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