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Merged
mcculls merged 3 commits into from
Dec 4, 2025
Merged

Use ClassLoaderIndex to index class-loader related information #9980

mcculls merged 3 commits into from
Dec 4, 2025

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@mcculls
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@mcculls mcculls commented Nov 16, 2025 •
edited by atlassian bot
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What Does This Do

ClassLoaderIndex provides a stable numeric key-id for each live class-loader which can be used to record class-loader origin and match against it without storing weak references everywhere. (The index itself uses weak references, but clients using the index can simply use the numeric key-id.)

Note a class-loader may have more than one key-id over its life if it is temporarily displaced from the index. For example if a large number of class-loaders (>500) happened to be created in parallel. This would be very unusual, and at worst any cached type info under the old key-id would no longer match. This just means the type info would be recomputed and cached under the new key-id.

Motivation

Reduces direct use of class-loader weak references in the codebase.

Contributor Checklist

Jira ticket: APMAPI-1654

@mcculls mcculls added type: enhancement Enhancements and improvements comp: core Tracer core tag: performance Performance related changes labels Nov 16, 2025
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Benchmarks

Startup

Parameters

Baseline Candidate
baseline_or_candidate baseline candidate
git_branch master mcculls/use-classloader-index
git_commit_date 1764709712 1764763745
git_commit_sha c714e59 bb5ec51
release_version 1.57.0-SNAPSHOT~c714e59b1c 1.57.0-SNAPSHOT~bb5ec51323
See matching parameters
Baseline Candidate
application insecure-bank insecure-bank
ci_job_date 1764765600 1764765600
ci_job_id 1267823313 1267823313
ci_pipeline_id 84745970 84745970
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-qkkrp2yg 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-qkkrp2yg 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 57 metrics, 8 unstable metrics.

Startup time reports for petclinic 
gantt
    title petclinic - global startup overhead: candidate=1.57.0-SNAPSHOT~bb5ec51323, baseline=1.57.0-SNAPSHOT~c714e59b1c

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.053 s) : 0, 1052532
Total [baseline] (10.797 s) : 0, 10796596
Agent [candidate] (1.056 s) : 0, 1056097
Total [candidate] (10.862 s) : 0, 10862064
section appsec
Agent [baseline] (1.23 s) : 0, 1230048
Total [baseline] (10.86 s) : 0, 10860365
Agent [candidate] (1.24 s) : 0, 1240268
Total [candidate] (10.984 s) : 0, 10984356
section iast
Agent [baseline] (1.2 s) : 0, 1200365
Total [baseline] (11.104 s) : 0, 11103947
Agent [candidate] (1.196 s) : 0, 1195625
Total [candidate] (11.122 s) : 0, 11121693
section profiling
Agent [baseline] (1.201 s) : 0, 1200782
Total [baseline] (10.889 s) : 0, 10888941
Agent [candidate] (1.196 s) : 0, 1195617
Total [candidate] (10.961 s) : 0, 10960833
Loading
  • baseline results
Module Variant Duration Δ tracing
Agent tracing 1.053 s -
Agent appsec 1.23 s 177.516 ms (16.9%)
Agent iast 1.2 s 147.833 ms (14.0%)
Agent profiling 1.201 s 148.249 ms (14.1%)
Total tracing 10.797 s -
Total appsec 10.86 s 63.768 ms (0.6%)
Total iast 11.104 s 307.351 ms (2.8%)
Total profiling 10.889 s 92.345 ms (0.9%)
  • candidate results
Module Variant Duration Δ tracing
Agent tracing 1.056 s -
Agent appsec 1.24 s 184.171 ms (17.4%)
Agent iast 1.196 s 139.528 ms (13.2%)
Agent profiling 1.196 s 139.52 ms (13.2%)
Total tracing 10.862 s -
Total appsec 10.984 s 122.292 ms (1.1%)
Total iast 11.122 s 259.629 ms (2.4%)
Total profiling 10.961 s 98.769 ms (0.9%) 
gantt
    title petclinic - break down per module: candidate=1.57.0-SNAPSHOT~bb5ec51323, baseline=1.57.0-SNAPSHOT~c714e59b1c

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.484 ms) : 0, 1484
crashtracking [candidate] (1.474 ms) : 0, 1474
BytebuddyAgent [baseline] (707.801 ms) : 0, 707801
BytebuddyAgent [candidate] (709.736 ms) : 0, 709736
GlobalTracer [baseline] (248.85 ms) : 0, 248850
GlobalTracer [candidate] (250.263 ms) : 0, 250263
AppSec [baseline] (32.095 ms) : 0, 32095
AppSec [candidate] (32.063 ms) : 0, 32063
Debugger [baseline] (6.421 ms) : 0, 6421
Debugger [candidate] (6.396 ms) : 0, 6396
Remote Config [baseline] (686.446 µs) : 0, 686
Remote Config [candidate] (677.545 µs) : 0, 678
Telemetry [baseline] (13.073 ms) : 0, 13073
Telemetry [candidate] (15.526 ms) : 0, 15526
Flare Poller [baseline] (7.221 ms) : 0, 7221
Flare Poller [candidate] (5.011 ms) : 0, 5011
section appsec
crashtracking [baseline] (1.5 ms) : 0, 1500
crashtracking [candidate] (1.506 ms) : 0, 1506
BytebuddyAgent [baseline] (733.248 ms) : 0, 733248
BytebuddyAgent [candidate] (738.497 ms) : 0, 738497
GlobalTracer [baseline] (241.352 ms) : 0, 241352
GlobalTracer [candidate] (243.761 ms) : 0, 243761
AppSec [baseline] (174.796 ms) : 0, 174796
AppSec [candidate] (176.723 ms) : 0, 176723
Debugger [baseline] (6.296 ms) : 0, 6296
Debugger [candidate] (6.401 ms) : 0, 6401
Remote Config [baseline] (679.205 µs) : 0, 679
Remote Config [candidate] (711.668 µs) : 0, 712
Telemetry [baseline] (8.06 ms) : 0, 8060
Telemetry [candidate] (8.357 ms) : 0, 8357
Flare Poller [baseline] (3.989 ms) : 0, 3989
Flare Poller [candidate] (4.073 ms) : 0, 4073
IAST [baseline] (24.89 ms) : 0, 24890
IAST [candidate] (25.011 ms) : 0, 25011
section iast
crashtracking [baseline] (1.489 ms) : 0, 1489
crashtracking [candidate] (1.476 ms) : 0, 1476
BytebuddyAgent [baseline] (837.418 ms) : 0, 837418
BytebuddyAgent [candidate] (833.799 ms) : 0, 833799
GlobalTracer [baseline] (238.796 ms) : 0, 238796
GlobalTracer [candidate] (238.238 ms) : 0, 238238
AppSec [baseline] (32.998 ms) : 0, 32998
AppSec [candidate] (32.25 ms) : 0, 32250
Debugger [baseline] (6.153 ms) : 0, 6153
Debugger [candidate] (6.104 ms) : 0, 6104
Remote Config [baseline] (619.177 µs) : 0, 619
Remote Config [candidate] (609.509 µs) : 0, 610
Telemetry [baseline] (8.144 ms) : 0, 8144
Telemetry [candidate] (8.164 ms) : 0, 8164
Flare Poller [baseline] (10.979 ms) : 0, 10979
Flare Poller [candidate] (10.801 ms) : 0, 10801
IAST [baseline] (28.621 ms) : 0, 28621
IAST [candidate] (29.195 ms) : 0, 29195
section profiling
ProfilingAgent [baseline] (110.981 ms) : 0, 110981
ProfilingAgent [candidate] (110.647 ms) : 0, 110647
crashtracking [baseline] (1.446 ms) : 0, 1446
crashtracking [candidate] (1.432 ms) : 0, 1432
BytebuddyAgent [baseline] (736.52 ms) : 0, 736520
BytebuddyAgent [candidate] (732.248 ms) : 0, 732248
GlobalTracer [baseline] (222.336 ms) : 0, 222336
GlobalTracer [candidate] (222.237 ms) : 0, 222237
AppSec [baseline] (32.135 ms) : 0, 32135
AppSec [candidate] (32.031 ms) : 0, 32031
Debugger [baseline] (8.316 ms) : 0, 8316
Debugger [candidate] (8.421 ms) : 0, 8421
Remote Config [baseline] (679.674 µs) : 0, 680
Remote Config [candidate] (674.28 µs) : 0, 674
Telemetry [baseline] (14.525 ms) : 0, 14525
Telemetry [candidate] (14.585 ms) : 0, 14585
Flare Poller [baseline] (4.131 ms) : 0, 4131
Flare Poller [candidate] (4.158 ms) : 0, 4158
Profiling [baseline] (111.601 ms) : 0, 111601
Profiling [candidate] (111.297 ms) : 0, 111297
Loading
Startup time reports for insecure-bank 
gantt
    title insecure-bank - global startup overhead: candidate=1.57.0-SNAPSHOT~bb5ec51323, baseline=1.57.0-SNAPSHOT~c714e59b1c

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.048 s) : 0, 1048218
Total [baseline] (8.678 s) : 0, 8677670
Agent [candidate] (1.056 s) : 0, 1056049
Total [candidate] (8.714 s) : 0, 8713603
section iast
Agent [baseline] (1.204 s) : 0, 1203907
Total [baseline] (9.387 s) : 0, 9387070
Agent [candidate] (1.191 s) : 0, 1190748
Total [candidate] (9.334 s) : 0, 9334224
Loading
  • baseline results
Module Variant Duration Δ tracing
Agent tracing 1.048 s -
Agent iast 1.204 s 155.689 ms (14.9%)
Total tracing 8.678 s -
Total iast 9.387 s 709.4 ms (8.2%)
  • candidate results
Module Variant Duration Δ tracing
Agent tracing 1.056 s -
Agent iast 1.191 s 134.698 ms (12.8%)
Total tracing 8.714 s -
Total iast 9.334 s 620.621 ms (7.1%) 
gantt
    title insecure-bank - break down per module: candidate=1.57.0-SNAPSHOT~bb5ec51323, baseline=1.57.0-SNAPSHOT~c714e59b1c

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.478 ms) : 0, 1478
crashtracking [candidate] (1.485 ms) : 0, 1485
BytebuddyAgent [baseline] (704.916 ms) : 0, 704916
BytebuddyAgent [candidate] (709.353 ms) : 0, 709353
GlobalTracer [baseline] (247.952 ms) : 0, 247952
GlobalTracer [candidate] (250.669 ms) : 0, 250669
AppSec [baseline] (31.883 ms) : 0, 31883
AppSec [candidate] (32.214 ms) : 0, 32214
Debugger [baseline] (6.336 ms) : 0, 6336
Debugger [candidate] (6.445 ms) : 0, 6445
Remote Config [baseline] (665.562 µs) : 0, 666
Remote Config [candidate] (675.621 µs) : 0, 676
Telemetry [baseline] (16.166 ms) : 0, 16166
Telemetry [candidate] (16.139 ms) : 0, 16139
Flare Poller [baseline] (4.004 ms) : 0, 4004
Flare Poller [candidate] (4.135 ms) : 0, 4135
section iast
crashtracking [baseline] (1.488 ms) : 0, 1488
crashtracking [candidate] (1.488 ms) : 0, 1488
BytebuddyAgent [baseline] (838.984 ms) : 0, 838984
BytebuddyAgent [candidate] (830.442 ms) : 0, 830442
GlobalTracer [baseline] (239.838 ms) : 0, 239838
GlobalTracer [candidate] (237.321 ms) : 0, 237321
AppSec [baseline] (33.616 ms) : 0, 33616
AppSec [candidate] (32.082 ms) : 0, 32082
Debugger [baseline] (6.175 ms) : 0, 6175
Debugger [candidate] (6.044 ms) : 0, 6044
Remote Config [baseline] (616.846 µs) : 0, 617
Remote Config [candidate] (600.107 µs) : 0, 600
Telemetry [baseline] (8.142 ms) : 0, 8142
Telemetry [candidate] (8.014 ms) : 0, 8014
Flare Poller [baseline] (10.871 ms) : 0, 10871
Flare Poller [candidate] (10.79 ms) : 0, 10790
IAST [baseline] (28.947 ms) : 0, 28947
IAST [candidate] (29.005 ms) : 0, 29005
Loading

Load

Parameters

Baseline Candidate
baseline_or_candidate baseline candidate
git_branch master mcculls/use-classloader-index
git_commit_date 1764709712 1764763745
git_commit_sha c714e59 bb5ec51
release_version 1.57.0-SNAPSHOT~c714e59b1c 1.57.0-SNAPSHOT~bb5ec51323
See matching parameters
Baseline Candidate
application insecure-bank insecure-bank
ci_job_date 1764766098 1764766098
ci_job_id 1267823315 1267823315
ci_pipeline_id 84745970 84745970
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-kvdcet40 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-kvdcet40 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 2 performance regressions! Performance is the same for 16 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:insecure-bank:profiling:high_load worse
[+32.577µs; +169.342µs] or [+2.009%; +10.444%]		 unstable
[+119.203µs; +1031.239µs] or [+2.580%; +22.320%]		 unstable
[-428.549op/s; +84.862op/s] or [-18.948%; +3.752%]		 1.722ms 5.195ms 2089.875op/s 1.621ms 4.620ms 2261.719op/s
scenario:load:insecure-bank:iast_FULL:high_load worse
[+181.323µs; +505.059µs] or [+3.706%; +10.324%]		 unsure
[+216.861µs; +966.304µs] or [+1.846%; +8.227%]		 unstable
[-128.607op/s; +40.857op/s] or [-15.429%; +4.902%]		 5.235ms 12.337ms 789.656op/s 4.892ms 11.746ms 833.531op/s
scenario:load:petclinic:profiling:high_load better
[-1.663ms; -0.398ms] or [-8.385%; -2.006%]		 unsure
[-2.323ms; -0.624ms] or [-7.341%; -1.972%]		 unstable
[-20.347op/s; +26.496op/s] or [-8.456%; +11.012%]		 18.798ms 30.176ms 243.688op/s 19.828ms 31.650ms 240.613op/s
Request duration reports for insecure-bank 
gantt
    title insecure-bank - request duration [CI 0.99] : candidate=1.57.0-SNAPSHOT~bb5ec51323, baseline=1.57.0-SNAPSHOT~c714e59b1c
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.201 ms) : 1190, 1213
.   : milestone, 1201,
iast (3.215 ms) : 3170, 3260
.   : milestone, 3215,
iast_FULL (5.541 ms) : 5486, 5596
.   : milestone, 5541,
iast_GLOBAL (3.55 ms) : 3499, 3602
.   : milestone, 3550,
profiling (1.994 ms) : 1976, 2011
.   : milestone, 1994,
tracing (1.812 ms) : 1795, 1828
.   : milestone, 1812,
section candidate
no_agent (1.205 ms) : 1193, 1217
.   : milestone, 1205,
iast (3.241 ms) : 3196, 3286
.   : milestone, 3241,
iast_FULL (5.854 ms) : 5796, 5912
.   : milestone, 5854,
iast_GLOBAL (3.623 ms) : 3567, 3679
.   : milestone, 3623,
profiling (2.164 ms) : 2145, 2184
.   : milestone, 2164,
tracing (1.83 ms) : 1814, 1846
.   : milestone, 1830,
Loading
  • baseline results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 1.201 ms [1.19 ms, 1.213 ms] -
iast 3.215 ms [3.17 ms, 3.26 ms] 2.014 ms (167.7%)
iast_FULL 5.541 ms [5.486 ms, 5.596 ms] 4.34 ms (361.3%)
iast_GLOBAL 3.55 ms [3.499 ms, 3.602 ms] 2.349 ms (195.6%)
profiling 1.994 ms [1.976 ms, 2.011 ms] 792.483 µs (66.0%)
tracing 1.812 ms [1.795 ms, 1.828 ms] 610.466 µs (50.8%)
  • candidate results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 1.205 ms [1.193 ms, 1.217 ms] -
iast 3.241 ms [3.196 ms, 3.286 ms] 2.035 ms (168.9%)
iast_FULL 5.854 ms [5.796 ms, 5.912 ms] 4.649 ms (385.8%)
iast_GLOBAL 3.623 ms [3.567 ms, 3.679 ms] 2.418 ms (200.6%)
profiling 2.164 ms [2.145 ms, 2.184 ms] 959.124 µs (79.6%)
tracing 1.83 ms [1.814 ms, 1.846 ms] 624.873 µs (51.9%)
Request duration reports for petclinic 
gantt
    title petclinic - request duration [CI 0.99] : candidate=1.57.0-SNAPSHOT~bb5ec51323, baseline=1.57.0-SNAPSHOT~c714e59b1c
    dateFormat X
    axisFormat %s
section baseline
no_agent (17.082 ms) : 16910, 17254
.   : milestone, 17082,
appsec (18.572 ms) : 18381, 18763
.   : milestone, 18572,
code_origins (17.556 ms) : 17381, 17732
.   : milestone, 17556,
iast (17.751 ms) : 17572, 17929
.   : milestone, 17751,
profiling (20.028 ms) : 19821, 20236
.   : milestone, 20028,
tracing (18.678 ms) : 18493, 18864
.   : milestone, 18678,
section candidate
no_agent (17.97 ms) : 17793, 18146
.   : milestone, 17970,
appsec (18.723 ms) : 18535, 18911
.   : milestone, 18723,
code_origins (17.805 ms) : 17626, 17984
.   : milestone, 17805,
iast (17.964 ms) : 17785, 18142
.   : milestone, 17964,
profiling (19.153 ms) : 18962, 19343
.   : milestone, 19153,
tracing (17.71 ms) : 17536, 17885
.   : milestone, 17710,
Loading
  • baseline results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 17.082 ms [16.91 ms, 17.254 ms] -
appsec 18.572 ms [18.381 ms, 18.763 ms] 1.49 ms (8.7%)
code_origins 17.556 ms [17.381 ms, 17.732 ms] 474.425 µs (2.8%)
iast 17.751 ms [17.572 ms, 17.929 ms] 668.776 µs (3.9%)
profiling 20.028 ms [19.821 ms, 20.236 ms] 2.946 ms (17.2%)
tracing 18.678 ms [18.493 ms, 18.864 ms] 1.596 ms (9.3%)
  • candidate results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 17.97 ms [17.793 ms, 18.146 ms] -
appsec 18.723 ms [18.535 ms, 18.911 ms] 753.029 µs (4.2%)
code_origins 17.805 ms [17.626 ms, 17.984 ms] -165.16 µs (-0.9%)
iast 17.964 ms [17.785 ms, 18.142 ms] -6.263 µs (-0.0%)
profiling 19.153 ms [18.962 ms, 19.343 ms] 1.183 ms (6.6%)
tracing 17.71 ms [17.536 ms, 17.885 ms] -259.296 µs (-1.4%)

Dacapo

Parameters

Baseline Candidate
baseline_or_candidate baseline candidate
git_branch master mcculls/use-classloader-index
git_commit_date 1764709712 1764763745
git_commit_sha c714e59 bb5ec51
release_version 1.57.0-SNAPSHOT~c714e59b1c 1.57.0-SNAPSHOT~bb5ec51323
See matching parameters
Baseline Candidate
application biojava biojava
ci_job_date 1764765686 1764765686
ci_job_id 1267823316 1267823316
ci_pipeline_id 84745970 84745970
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-v8u1kik5 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-v8u1kik5 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 11 metrics, 0 unstable metrics.

scenario Δ mean execution_time candidate mean execution_time baseline mean execution_time
scenario:dacapo:tomcat:appsec better
[-1.413ms; -1.074ms] or [-38.084%; -28.956%]		 2.466ms 3.710ms
Execution time for biojava 
gantt
    title biojava - execution time [CI 0.99] : candidate=1.57.0-SNAPSHOT~bb5ec51323, baseline=1.57.0-SNAPSHOT~c714e59b1c
    dateFormat X
    axisFormat %s
section baseline
no_agent (14.949 s) : 14949000, 14949000
.   : milestone, 14949000,
appsec (14.83 s) : 14830000, 14830000
.   : milestone, 14830000,
iast (18.424 s) : 18424000, 18424000
.   : milestone, 18424000,
iast_GLOBAL (18.279 s) : 18279000, 18279000
.   : milestone, 18279000,
profiling (14.739 s) : 14739000, 14739000
.   : milestone, 14739000,
tracing (14.59 s) : 14590000, 14590000
.   : milestone, 14590000,
section candidate
no_agent (15.508 s) : 15508000, 15508000
.   : milestone, 15508000,
appsec (15.155 s) : 15155000, 15155000
.   : milestone, 15155000,
iast (18.94 s) : 18940000, 18940000
.   : milestone, 18940000,
iast_GLOBAL (17.99 s) : 17990000, 17990000
.   : milestone, 17990000,
profiling (14.825 s) : 14825000, 14825000
.   : milestone, 14825000,
tracing (14.649 s) : 14649000, 14649000
.   : milestone, 14649000,
Loading
  • baseline results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 14.949 s [14.949 s, 14.949 s] -
appsec 14.83 s [14.83 s, 14.83 s] -119.0 ms (-0.8%)
iast 18.424 s [18.424 s, 18.424 s] 3.475 s (23.2%)
iast_GLOBAL 18.279 s [18.279 s, 18.279 s] 3.33 s (22.3%)
profiling 14.739 s [14.739 s, 14.739 s] -210.0 ms (-1.4%)
tracing 14.59 s [14.59 s, 14.59 s] -359.0 ms (-2.4%)
  • candidate results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 15.508 s [15.508 s, 15.508 s] -
appsec 15.155 s [15.155 s, 15.155 s] -353.0 ms (-2.3%)
iast 18.94 s [18.94 s, 18.94 s] 3.432 s (22.1%)
iast_GLOBAL 17.99 s [17.99 s, 17.99 s] 2.482 s (16.0%)
profiling 14.825 s [14.825 s, 14.825 s] -683.0 ms (-4.4%)
tracing 14.649 s [14.649 s, 14.649 s] -859.0 ms (-5.5%)
Execution time for tomcat 
gantt
    title tomcat - execution time [CI 0.99] : candidate=1.57.0-SNAPSHOT~bb5ec51323, baseline=1.57.0-SNAPSHOT~c714e59b1c
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.476 ms) : 1465, 1488
.   : milestone, 1476,
appsec (3.71 ms) : 3493, 3926
.   : milestone, 3710,
iast (2.214 ms) : 2150, 2277
.   : milestone, 2214,
iast_GLOBAL (2.256 ms) : 2191, 2320
.   : milestone, 2256,
profiling (2.09 ms) : 2037, 2144
.   : milestone, 2090,
tracing (2.044 ms) : 1993, 2094
.   : milestone, 2044,
section candidate
no_agent (1.479 ms) : 1467, 1490
.   : milestone, 1479,
appsec (2.466 ms) : 2415, 2518
.   : milestone, 2466,
iast (2.213 ms) : 2149, 2277
.   : milestone, 2213,
iast_GLOBAL (2.251 ms) : 2186, 2315
.   : milestone, 2251,
profiling (2.071 ms) : 2018, 2124
.   : milestone, 2071,
tracing (2.049 ms) : 1998, 2100
.   : milestone, 2049,
Loading
  • baseline results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 1.476 ms [1.465 ms, 1.488 ms] -
appsec 3.71 ms [3.493 ms, 3.926 ms] 2.234 ms (151.3%)
iast 2.214 ms [2.15 ms, 2.277 ms] 737.384 µs (50.0%)
iast_GLOBAL 2.256 ms [2.191 ms, 2.32 ms] 779.413 µs (52.8%)
profiling 2.09 ms [2.037 ms, 2.144 ms] 613.99 µs (41.6%)
tracing 2.044 ms [1.993 ms, 2.094 ms] 567.526 µs (38.4%)
  • candidate results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 1.479 ms [1.467 ms, 1.49 ms] -
appsec 2.466 ms [2.415 ms, 2.518 ms] 987.736 µs (66.8%)
iast 2.213 ms [2.149 ms, 2.277 ms] 734.505 µs (49.7%)
iast_GLOBAL 2.251 ms [2.186 ms, 2.315 ms] 771.893 µs (52.2%)
profiling 2.071 ms [2.018 ms, 2.124 ms] 592.191 µs (40.1%)
tracing 2.049 ms [1.998 ms, 2.1 ms] 570.436 µs (38.6%)

@mcculls mcculls force-pushed the mcculls/use-classloader-index branch 3 times, most recently from 09616cc to 10d8418 Compare November 17, 2025 10:08
@mcculls mcculls force-pushed the mcculls/use-classloader-index branch 2 times, most recently from 5f70d32 to d182ada Compare November 24, 2025 14:14
@mcculls mcculls force-pushed the mcculls/use-classloader-index branch from d182ada to 0efba48 Compare November 24, 2025 14:24
@mcculls mcculls marked this pull request as ready for review December 3, 2025 15:43
@mcculls mcculls requested a review from a team as a code owner December 3, 2025 15:43
@mcculls mcculls requested review from amarziali and smola December 3, 2025 15:43
@mcculls mcculls merged commit 0e1ab1d into master Dec 4, 2025
556 of 559 checks passed
@mcculls mcculls deleted the mcculls/use-classloader-index branch December 4, 2025 13:03
@github-actions github-actions bot added this to the 1.57.0 milestone Dec 4, 2025
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@amarziali amarziali amarziali approved these changes

@smola smola Awaiting requested review from smola smola is a code owner automatically assigned from DataDog/apm-java

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comp: core Tracer core tag: performance Performance related changes type: enhancement Enhancements and improvements

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