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Extracting span kind & language into static TagMap.Entry objects#10495

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dougqh/server-decorator-entry-reuse
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Extracting span kind & language into static TagMap.Entry objects#10495
dougqh wants to merge 2 commits intomasterfrom
dougqh/server-decorator-entry-reuse

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@dougqh dougqh commented Feb 2, 2026 •
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What Does This Do

Extracts span kind & language into static TagMap.Entry objects

Motivation

Reduce allocation & garbage collection

Additional Notes

Contributor Checklist

Jira ticket: [PROJ-IDENT]

@dougqh dougqh requested a review from a team as a code owner February 2, 2026 15:12
@dougqh dougqh added type: enhancement Enhancements and improvements tag: performance Performance related changes inst:servlet Servlet instrumentation labels Feb 2, 2026
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Benchmarks

Startup

Parameters

Baseline Candidate
baseline_or_candidate baseline candidate
git_branch master dougqh/server-decorator-entry-reuse
git_commit_date 1770386810 1770387644
git_commit_sha e036f8c e5e17bc
release_version 1.60.0-SNAPSHOT~e036f8ca99 1.59.0-SNAPSHOT~e5e17bcca5
See matching parameters
Baseline Candidate
application insecure-bank insecure-bank
ci_job_date 1770389287 1770389287
ci_job_id 1406327137 1406327137
ci_pipeline_id 95000314 95000314
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-m6i2eghe 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-m6i2eghe 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 59 metrics, 12 unstable metrics.

Startup time reports for insecure-bank 
gantt
    title insecure-bank - global startup overhead: candidate=1.59.0-SNAPSHOT~e5e17bcca5, baseline=1.60.0-SNAPSHOT~e036f8ca99

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.079 s) : 0, 1078716
Total [baseline] (8.774 s) : 0, 8773657
Agent [candidate] (1.075 s) : 0, 1075075
Total [candidate] (8.784 s) : 0, 8784055
section iast
Agent [baseline] (1.235 s) : 0, 1235240
Total [baseline] (9.411 s) : 0, 9410624
Agent [candidate] (1.236 s) : 0, 1235546
Total [candidate] (9.4 s) : 0, 9399984
Loading
  • baseline results
Module Variant Duration Δ tracing
Agent tracing 1.079 s -
Agent iast 1.235 s 156.524 ms (14.5%)
Total tracing 8.774 s -
Total iast 9.411 s 636.967 ms (7.3%)
  • candidate results
Module Variant Duration Δ tracing
Agent tracing 1.075 s -
Agent iast 1.236 s 160.471 ms (14.9%)
Total tracing 8.784 s -
Total iast 9.4 s 615.929 ms (7.0%) 
gantt
    title insecure-bank - break down per module: candidate=1.59.0-SNAPSHOT~e5e17bcca5, baseline=1.60.0-SNAPSHOT~e036f8ca99

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.203 ms) : 0, 1203
crashtracking [candidate] (1.21 ms) : 0, 1210
BytebuddyAgent [baseline] (637.212 ms) : 0, 637212
BytebuddyAgent [candidate] (635.436 ms) : 0, 635436
AgentMeter [baseline] (29.3 ms) : 0, 29300
AgentMeter [candidate] (29.146 ms) : 0, 29146
GlobalTracer [baseline] (260.729 ms) : 0, 260729
GlobalTracer [candidate] (260.469 ms) : 0, 260469
AppSec [baseline] (33.118 ms) : 0, 33118
AppSec [candidate] (33.16 ms) : 0, 33160
Debugger [baseline] (60.712 ms) : 0, 60712
Debugger [candidate] (62.628 ms) : 0, 62628
Remote Config [baseline] (622.367 µs) : 0, 622
Remote Config [candidate] (622.123 µs) : 0, 622
Telemetry [baseline] (13.83 ms) : 0, 13830
Telemetry [candidate] (11.45 ms) : 0, 11450
Flare Poller [baseline] (6.189 ms) : 0, 6189
Flare Poller [candidate] (5.423 ms) : 0, 5423
section iast
crashtracking [baseline] (1.184 ms) : 0, 1184
crashtracking [candidate] (1.188 ms) : 0, 1188
BytebuddyAgent [baseline] (797.349 ms) : 0, 797349
BytebuddyAgent [candidate] (798.762 ms) : 0, 798762
AgentMeter [baseline] (11.325 ms) : 0, 11325
AgentMeter [candidate] (11.278 ms) : 0, 11278
GlobalTracer [baseline] (249.418 ms) : 0, 249418
GlobalTracer [candidate] (249.577 ms) : 0, 249577
AppSec [baseline] (32.727 ms) : 0, 32727
AppSec [candidate] (34.784 ms) : 0, 34784
Debugger [baseline] (67.927 ms) : 0, 67927
Debugger [candidate] (64.86 ms) : 0, 64860
Remote Config [baseline] (557.087 µs) : 0, 557
Remote Config [candidate] (553.098 µs) : 0, 553
Telemetry [baseline] (8.697 ms) : 0, 8697
Telemetry [candidate] (8.717 ms) : 0, 8717
Flare Poller [baseline] (3.554 ms) : 0, 3554
Flare Poller [candidate] (3.455 ms) : 0, 3455
IAST [baseline] (27.165 ms) : 0, 27165
IAST [candidate] (27.0 ms) : 0, 27000
Loading
Startup time reports for petclinic 
gantt
    title petclinic - global startup overhead: candidate=1.59.0-SNAPSHOT~e5e17bcca5, baseline=1.60.0-SNAPSHOT~e036f8ca99

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.066 s) : 0, 1065631
Total [baseline] (10.944 s) : 0, 10943727
Agent [candidate] (1.073 s) : 0, 1072773
Total [candidate] (10.95 s) : 0, 10949768
section appsec
Agent [baseline] (1.242 s) : 0, 1241501
Total [baseline] (11.067 s) : 0, 11067436
Agent [candidate] (1.24 s) : 0, 1239578
Total [candidate] (11.022 s) : 0, 11021750
section iast
Agent [baseline] (1.243 s) : 0, 1242512
Total [baseline] (11.155 s) : 0, 11155254
Agent [candidate] (1.245 s) : 0, 1244852
Total [candidate] (11.356 s) : 0, 11355916
section profiling
Agent [baseline] (1.191 s) : 0, 1190935
Total [baseline] (11.058 s) : 0, 11057987
Agent [candidate] (1.192 s) : 0, 1192200
Total [candidate] (10.952 s) : 0, 10952055
Loading
  • baseline results
Module Variant Duration Δ tracing
Agent tracing 1.066 s -
Agent appsec 1.242 s 175.87 ms (16.5%)
Agent iast 1.243 s 176.88 ms (16.6%)
Agent profiling 1.191 s 125.304 ms (11.8%)
Total tracing 10.944 s -
Total appsec 11.067 s 123.71 ms (1.1%)
Total iast 11.155 s 211.527 ms (1.9%)
Total profiling 11.058 s 114.26 ms (1.0%)
  • candidate results
Module Variant Duration Δ tracing
Agent tracing 1.073 s -
Agent appsec 1.24 s 166.805 ms (15.5%)
Agent iast 1.245 s 172.079 ms (16.0%)
Agent profiling 1.192 s 119.427 ms (11.1%)
Total tracing 10.95 s -
Total appsec 11.022 s 71.983 ms (0.7%)
Total iast 11.356 s 406.148 ms (3.7%)
Total profiling 10.952 s 2.287 ms (0.0%) 
gantt
    title petclinic - break down per module: candidate=1.59.0-SNAPSHOT~e5e17bcca5, baseline=1.60.0-SNAPSHOT~e036f8ca99

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.183 ms) : 0, 1183
crashtracking [candidate] (1.202 ms) : 0, 1202
BytebuddyAgent [baseline] (629.325 ms) : 0, 629325
BytebuddyAgent [candidate] (634.102 ms) : 0, 634102
AgentMeter [baseline] (28.969 ms) : 0, 28969
AgentMeter [candidate] (29.195 ms) : 0, 29195
GlobalTracer [baseline] (258.284 ms) : 0, 258284
GlobalTracer [candidate] (259.81 ms) : 0, 259810
AppSec [baseline] (32.65 ms) : 0, 32650
AppSec [candidate] (32.713 ms) : 0, 32713
Debugger [baseline] (61.535 ms) : 0, 61535
Debugger [candidate] (60.652 ms) : 0, 60652
Remote Config [baseline] (630.315 µs) : 0, 630
Remote Config [candidate] (621.18 µs) : 0, 621
Telemetry [baseline] (13.113 ms) : 0, 13113
Telemetry [candidate] (12.868 ms) : 0, 12868
Flare Poller [baseline] (4.556 ms) : 0, 4556
Flare Poller [candidate] (6.151 ms) : 0, 6151
section appsec
crashtracking [baseline] (1.184 ms) : 0, 1184
crashtracking [candidate] (1.174 ms) : 0, 1174
BytebuddyAgent [baseline] (658.728 ms) : 0, 658728
BytebuddyAgent [candidate] (658.006 ms) : 0, 658006
AgentMeter [baseline] (11.957 ms) : 0, 11957
AgentMeter [candidate] (11.968 ms) : 0, 11968
GlobalTracer [baseline] (259.339 ms) : 0, 259339
GlobalTracer [candidate] (258.813 ms) : 0, 258813
AppSec [baseline] (168.302 ms) : 0, 168302
AppSec [candidate] (167.945 ms) : 0, 167945
Debugger [baseline] (67.561 ms) : 0, 67561
Debugger [candidate] (67.588 ms) : 0, 67588
Remote Config [baseline] (670.644 µs) : 0, 671
Remote Config [candidate] (650.29 µs) : 0, 650
Telemetry [baseline] (9.334 ms) : 0, 9334
Telemetry [candidate] (9.253 ms) : 0, 9253
Flare Poller [baseline] (3.676 ms) : 0, 3676
Flare Poller [candidate] (3.714 ms) : 0, 3714
IAST [baseline] (25.332 ms) : 0, 25332
IAST [candidate] (25.156 ms) : 0, 25156
section iast
crashtracking [baseline] (1.189 ms) : 0, 1189
crashtracking [candidate] (1.198 ms) : 0, 1198
BytebuddyAgent [baseline] (802.616 ms) : 0, 802616
BytebuddyAgent [candidate] (804.036 ms) : 0, 804036
AgentMeter [baseline] (11.347 ms) : 0, 11347
AgentMeter [candidate] (11.341 ms) : 0, 11341
GlobalTracer [baseline] (250.295 ms) : 0, 250295
GlobalTracer [candidate] (251.255 ms) : 0, 251255
AppSec [baseline] (32.508 ms) : 0, 32508
AppSec [candidate] (35.999 ms) : 0, 35999
Debugger [baseline] (68.967 ms) : 0, 68967
Debugger [candidate] (65.339 ms) : 0, 65339
Remote Config [baseline] (555.232 µs) : 0, 555
Remote Config [candidate] (551.598 µs) : 0, 552
Telemetry [baseline] (8.688 ms) : 0, 8688
Telemetry [candidate] (8.858 ms) : 0, 8858
Flare Poller [baseline] (3.469 ms) : 0, 3469
Flare Poller [candidate] (3.579 ms) : 0, 3579
IAST [baseline] (27.368 ms) : 0, 27368
IAST [candidate] (27.141 ms) : 0, 27141
section profiling
crashtracking [baseline] (1.216 ms) : 0, 1216
crashtracking [candidate] (1.205 ms) : 0, 1205
BytebuddyAgent [baseline] (681.741 ms) : 0, 681741
BytebuddyAgent [candidate] (683.253 ms) : 0, 683253
AgentMeter [baseline] (8.746 ms) : 0, 8746
AgentMeter [candidate] (8.801 ms) : 0, 8801
GlobalTracer [baseline] (216.144 ms) : 0, 216144
GlobalTracer [candidate] (216.051 ms) : 0, 216051
AppSec [baseline] (32.234 ms) : 0, 32234
AppSec [candidate] (32.342 ms) : 0, 32342
Debugger [baseline] (68.012 ms) : 0, 68012
Debugger [candidate] (67.729 ms) : 0, 67729
Remote Config [baseline] (596.009 µs) : 0, 596
Remote Config [candidate] (602.742 µs) : 0, 603
Telemetry [baseline] (8.895 ms) : 0, 8895
Telemetry [candidate] (8.938 ms) : 0, 8938
Flare Poller [baseline] (3.772 ms) : 0, 3772
Flare Poller [candidate] (3.772 ms) : 0, 3772
ProfilingAgent [baseline] (99.672 ms) : 0, 99672
ProfilingAgent [candidate] (99.599 ms) : 0, 99599
Profiling [baseline] (100.244 ms) : 0, 100244
Profiling [candidate] (100.173 ms) : 0, 100173
Loading

Load

Parameters

Baseline Candidate
baseline_or_candidate baseline candidate
git_branch master dougqh/server-decorator-entry-reuse
git_commit_date 1770386810 1770387644
git_commit_sha e036f8c e5e17bc
release_version 1.60.0-SNAPSHOT~e036f8ca99 1.59.0-SNAPSHOT~e5e17bcca5
See matching parameters
Baseline Candidate
application insecure-bank insecure-bank
ci_job_date 1770389862 1770389862
ci_job_id 1406327142 1406327142
ci_pipeline_id 95000314 95000314
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-pa07gsx6 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-pa07gsx6 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 4 performance improvements and 1 performance regressions! Performance is the same for 16 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:insecure-bank:iast:high_load better
[-244.360µs; -157.290µs] or [-9.381%; -6.038%]		 better
[-579.284µs; -245.304µs] or [-7.682%; -3.253%]		 unstable
[-56.695op/s; +251.508op/s] or [-4.137%; +18.354%]		 2.404ms 7.128ms 1467.750op/s 2.605ms 7.540ms 1370.344op/s
scenario:load:insecure-bank:iast_GLOBAL:high_load better
[-194.145µs; -62.305µs] or [-6.752%; -2.167%]		 better
[-508.160µs; -168.486µs] or [-6.283%; -2.083%]		 unstable
[-90.514op/s; +194.764op/s] or [-7.238%; +15.574%]		 2.747ms 7.749ms 1302.656op/s 2.875ms 8.088ms 1250.531op/s
scenario:load:insecure-bank:iast_FULL:high_load worse
[+171.302µs; +544.255µs] or [+3.402%; +10.810%]		 unsure
[+140.528µs; +1057.983µs] or [+1.165%; +8.773%]		 unstable
[-125.233op/s; +44.046op/s] or [-15.495%; +5.450%]		 5.392ms 12.659ms 767.625op/s 5.035ms 12.059ms 808.219op/s
Request duration reports for insecure-bank 
gantt
    title insecure-bank - request duration [CI 0.99] : candidate=1.59.0-SNAPSHOT~e5e17bcca5, baseline=1.60.0-SNAPSHOT~e036f8ca99
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.196 ms) : 1184, 1208
.   : milestone, 1196,
iast (3.342 ms) : 3296, 3387
.   : milestone, 3342,
iast_FULL (5.719 ms) : 5662, 5775
.   : milestone, 5719,
iast_GLOBAL (3.669 ms) : 3602, 3736
.   : milestone, 3669,
profiling (1.898 ms) : 1882, 1913
.   : milestone, 1898,
tracing (1.775 ms) : 1761, 1790
.   : milestone, 1775,
section candidate
no_agent (1.19 ms) : 1178, 1201
.   : milestone, 1190,
iast (3.114 ms) : 3073, 3155
.   : milestone, 3114,
iast_FULL (6.025 ms) : 5964, 6087
.   : milestone, 6025,
iast_GLOBAL (3.519 ms) : 3458, 3581
.   : milestone, 3519,
profiling (2.051 ms) : 2033, 2070
.   : milestone, 2051,
tracing (1.775 ms) : 1761, 1789
.   : milestone, 1775,
Loading
  • baseline results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 1.196 ms [1.184 ms, 1.208 ms] -
iast 3.342 ms [3.296 ms, 3.387 ms] 2.146 ms (179.5%)
iast_FULL 5.719 ms [5.662 ms, 5.775 ms] 4.523 ms (378.2%)
iast_GLOBAL 3.669 ms [3.602 ms, 3.736 ms] 2.473 ms (206.8%)
profiling 1.898 ms [1.882 ms, 1.913 ms] 702.009 µs (58.7%)
tracing 1.775 ms [1.761 ms, 1.79 ms] 579.686 µs (48.5%)
  • candidate results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 1.19 ms [1.178 ms, 1.201 ms] -
iast 3.114 ms [3.073 ms, 3.155 ms] 1.925 ms (161.8%)
iast_FULL 6.025 ms [5.964 ms, 6.087 ms] 4.836 ms (406.5%)
iast_GLOBAL 3.519 ms [3.458 ms, 3.581 ms] 2.33 ms (195.8%)
profiling 2.051 ms [2.033 ms, 2.07 ms] 861.728 µs (72.4%)
tracing 1.775 ms [1.761 ms, 1.789 ms] 585.216 µs (49.2%)
Request duration reports for petclinic 
gantt
    title petclinic - request duration [CI 0.99] : candidate=1.59.0-SNAPSHOT~e5e17bcca5, baseline=1.60.0-SNAPSHOT~e036f8ca99
    dateFormat X
    axisFormat %s
section baseline
no_agent (18.569 ms) : 18376, 18763
.   : milestone, 18569,
appsec (18.658 ms) : 18466, 18850
.   : milestone, 18658,
code_origins (17.79 ms) : 17612, 17968
.   : milestone, 17790,
iast (17.514 ms) : 17341, 17687
.   : milestone, 17514,
profiling (18.628 ms) : 18444, 18813
.   : milestone, 18628,
tracing (17.698 ms) : 17519, 17876
.   : milestone, 17698,
section candidate
no_agent (19.336 ms) : 19137, 19534
.   : milestone, 19336,
appsec (18.868 ms) : 18677, 19059
.   : milestone, 18868,
code_origins (17.443 ms) : 17271, 17615
.   : milestone, 17443,
iast (17.635 ms) : 17462, 17809
.   : milestone, 17635,
profiling (18.502 ms) : 18318, 18686
.   : milestone, 18502,
tracing (17.547 ms) : 17372, 17721
.   : milestone, 17547,
Loading
  • baseline results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 18.569 ms [18.376 ms, 18.763 ms] -
appsec 18.658 ms [18.466 ms, 18.85 ms] 88.823 µs (0.5%)
code_origins 17.79 ms [17.612 ms, 17.968 ms] -779.4 µs (-4.2%)
iast 17.514 ms [17.341 ms, 17.687 ms] -1.055 ms (-5.7%)
profiling 18.628 ms [18.444 ms, 18.813 ms] 58.8 µs (0.3%)
tracing 17.698 ms [17.519 ms, 17.876 ms] -871.442 µs (-4.7%)
  • candidate results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 19.336 ms [19.137 ms, 19.534 ms] -
appsec 18.868 ms [18.677 ms, 19.059 ms] -467.696 µs (-2.4%)
code_origins 17.443 ms [17.271 ms, 17.615 ms] -1.893 ms (-9.8%)
iast 17.635 ms [17.462 ms, 17.809 ms] -1.701 ms (-8.8%)
profiling 18.502 ms [18.318 ms, 18.686 ms] -833.981 µs (-4.3%)
tracing 17.547 ms [17.372 ms, 17.721 ms] -1.789 ms (-9.3%)

Dacapo

Parameters

Baseline Candidate
baseline_or_candidate baseline candidate
git_branch master dougqh/server-decorator-entry-reuse
git_commit_date 1770386810 1770387644
git_commit_sha e036f8c e5e17bc
release_version 1.60.0-SNAPSHOT~e036f8ca99 1.59.0-SNAPSHOT~e5e17bcca5
See matching parameters
Baseline Candidate
application biojava biojava
ci_job_date 1770389565 1770389565
ci_job_id 1406327147 1406327147
ci_pipeline_id 95000314 95000314
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-hhmdvlh9 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-hhmdvlh9 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=1.59.0-SNAPSHOT~e5e17bcca5, baseline=1.60.0-SNAPSHOT~e036f8ca99
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.48 ms) : 1469, 1492
.   : milestone, 1480,
appsec (3.774 ms) : 3552, 3995
.   : milestone, 3774,
iast (2.25 ms) : 2181, 2319
.   : milestone, 2250,
iast_GLOBAL (2.309 ms) : 2240, 2379
.   : milestone, 2309,
profiling (2.108 ms) : 2052, 2165
.   : milestone, 2108,
tracing (2.064 ms) : 2011, 2118
.   : milestone, 2064,
section candidate
no_agent (1.472 ms) : 1461, 1484
.   : milestone, 1472,
appsec (3.811 ms) : 3586, 4036
.   : milestone, 3811,
iast (2.26 ms) : 2191, 2329
.   : milestone, 2260,
iast_GLOBAL (2.302 ms) : 2233, 2371
.   : milestone, 2302,
profiling (2.098 ms) : 2042, 2154
.   : milestone, 2098,
tracing (2.077 ms) : 2023, 2131
.   : milestone, 2077,
Loading
  • baseline results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 1.48 ms [1.469 ms, 1.492 ms] -
appsec 3.774 ms [3.552 ms, 3.995 ms] 2.293 ms (154.9%)
iast 2.25 ms [2.181 ms, 2.319 ms] 769.768 µs (52.0%)
iast_GLOBAL 2.309 ms [2.24 ms, 2.379 ms] 828.764 µs (56.0%)
profiling 2.108 ms [2.052 ms, 2.165 ms] 628.099 µs (42.4%)
tracing 2.064 ms [2.011 ms, 2.118 ms] 583.952 µs (39.4%)
  • candidate results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 1.472 ms [1.461 ms, 1.484 ms] -
appsec 3.811 ms [3.586 ms, 4.036 ms] 2.339 ms (158.8%)
iast 2.26 ms [2.191 ms, 2.329 ms] 787.277 µs (53.5%)
iast_GLOBAL 2.302 ms [2.233 ms, 2.371 ms] 829.401 µs (56.3%)
profiling 2.098 ms [2.042 ms, 2.154 ms] 625.526 µs (42.5%)
tracing 2.077 ms [2.023 ms, 2.131 ms] 604.451 µs (41.0%)
Execution time for biojava 
gantt
    title biojava - execution time [CI 0.99] : candidate=1.59.0-SNAPSHOT~e5e17bcca5, baseline=1.60.0-SNAPSHOT~e036f8ca99
    dateFormat X
    axisFormat %s
section baseline
no_agent (15.438 s) : 15438000, 15438000
.   : milestone, 15438000,
appsec (14.854 s) : 14854000, 14854000
.   : milestone, 14854000,
iast (18.534 s) : 18534000, 18534000
.   : milestone, 18534000,
iast_GLOBAL (18.161 s) : 18161000, 18161000
.   : milestone, 18161000,
profiling (15.068 s) : 15068000, 15068000
.   : milestone, 15068000,
tracing (14.598 s) : 14598000, 14598000
.   : milestone, 14598000,
section candidate
no_agent (15.15 s) : 15150000, 15150000
.   : milestone, 15150000,
appsec (14.762 s) : 14762000, 14762000
.   : milestone, 14762000,
iast (18.12 s) : 18120000, 18120000
.   : milestone, 18120000,
iast_GLOBAL (18.001 s) : 18001000, 18001000
.   : milestone, 18001000,
profiling (14.789 s) : 14789000, 14789000
.   : milestone, 14789000,
tracing (15.173 s) : 15173000, 15173000
.   : milestone, 15173000,
Loading
  • baseline results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 15.438 s [15.438 s, 15.438 s] -
appsec 14.854 s [14.854 s, 14.854 s] -584.0 ms (-3.8%)
iast 18.534 s [18.534 s, 18.534 s] 3.096 s (20.1%)
iast_GLOBAL 18.161 s [18.161 s, 18.161 s] 2.723 s (17.6%)
profiling 15.068 s [15.068 s, 15.068 s] -370.0 ms (-2.4%)
tracing 14.598 s [14.598 s, 14.598 s] -840.0 ms (-5.4%)
  • candidate results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 15.15 s [15.15 s, 15.15 s] -
appsec 14.762 s [14.762 s, 14.762 s] -388.0 ms (-2.6%)
iast 18.12 s [18.12 s, 18.12 s] 2.97 s (19.6%)
iast_GLOBAL 18.001 s [18.001 s, 18.001 s] 2.851 s (18.8%)
profiling 14.789 s [14.789 s, 14.789 s] -361.0 ms (-2.4%)
tracing 15.173 s [15.173 s, 15.173 s] 23.0 ms (0.2%)

bric3
bric3 reviewed Feb 6, 2026
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...otstrap/src/main/java/datadog/trace/bootstrap/instrumentation/decorator/ServerDecorator.java
Comment on lines +16 to +17
span.setTag(SPAN_KIND_ENTRY);
span.setTag(LANG_ENTRY);
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issue: There are some tests failing e.g. in HttpServerDecoratorTest, but not only. This might be related to checked interactions using the usual key, value API.

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@dougqh dougqh Feb 6, 2026 •
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Yeah, it looks we have some overly strict mocking tests. I'll sort that out.

@ygree ygree changed the title Extracting into span kind & language into static TagMap.Entry objects Extracting span kind & language into static TagMap.Entry objects Feb 6, 2026
ygree
ygree approved these changes Feb 6, 2026
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Looks good!

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@bric3 bric3 bric3 approved these changes

@ygree ygree ygree approved these changes

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inst:servlet Servlet instrumentation tag: performance Performance related changes type: enhancement Enhancements and improvements

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