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Merged
gh-worker-dd-mergequeue-cf854d merged 2 commits into from
Feb 4, 2026
Merged

Support histograms with explicit (non-negative) boundaries #10524

gh-worker-dd-mergequeue-cf854d merged 2 commits into from
Feb 4, 2026

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@mcculls
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@mcculls mcculls commented Feb 4, 2026 •
edited by atlassian bot
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Motivation

We need this to support explicit histogram boundaries in the OpenTelemetry metrics API

Contributor Checklist

Jira ticket: APMAPI-1764

@mcculls mcculls added type: enhancement Enhancements and improvements comp: metrics Metrics labels Feb 4, 2026
@mcculls mcculls marked this pull request as ready for review February 4, 2026 14:36
@mcculls mcculls requested a review from a team as a code owner February 4, 2026 14:36
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pr-commenter bot commented Feb 4, 2026 •
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Benchmarks

Startup

Parameters

Baseline Candidate
baseline_or_candidate baseline candidate
git_branch master mcculls/support-explicit-histogram-boundaries
git_commit_date 1770217470 1770219328
git_commit_sha 786c771 a8411c6
release_version 1.60.0-SNAPSHOT~786c771187 1.60.0-SNAPSHOT~a8411c6cd7
See matching parameters
Baseline Candidate
application insecure-bank insecure-bank
ci_job_date 1770221079 1770221079
ci_job_id 1400824763 1400824763
ci_pipeline_id 94622471 94622471
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-0-29ey8xtl 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-0-29ey8xtl 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=1.60.0-SNAPSHOT~a8411c6cd7, baseline=1.60.0-SNAPSHOT~786c771187

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.066 s) : 0, 1065909
Total [baseline] (11.065 s) : 0, 11064799
Agent [candidate] (1.084 s) : 0, 1083571
Total [candidate] (10.996 s) : 0, 10996196
section appsec
Agent [baseline] (1.237 s) : 0, 1237407
Total [baseline] (11.093 s) : 0, 11092976
Agent [candidate] (1.24 s) : 0, 1239913
Total [candidate] (11.106 s) : 0, 11105961
section iast
Agent [baseline] (1.231 s) : 0, 1230964
Total [baseline] (11.188 s) : 0, 11188071
Agent [candidate] (1.235 s) : 0, 1234647
Total [candidate] (11.189 s) : 0, 11189336
section profiling
Agent [baseline] (1.195 s) : 0, 1194715
Total [baseline] (11.072 s) : 0, 11072112
Agent [candidate] (1.202 s) : 0, 1202407
Total [candidate] (11.041 s) : 0, 11040776
Loading
  • baseline results
Module Variant Duration Δ tracing
Agent tracing 1.066 s -
Agent appsec 1.237 s 171.498 ms (16.1%)
Agent iast 1.231 s 165.055 ms (15.5%)
Agent profiling 1.195 s 128.806 ms (12.1%)
Total tracing 11.065 s -
Total appsec 11.093 s 28.177 ms (0.3%)
Total iast 11.188 s 123.272 ms (1.1%)
Total profiling 11.072 s 7.313 ms (0.1%)
  • candidate results
Module Variant Duration Δ tracing
Agent tracing 1.084 s -
Agent appsec 1.24 s 156.342 ms (14.4%)
Agent iast 1.235 s 151.076 ms (13.9%)
Agent profiling 1.202 s 118.836 ms (11.0%)
Total tracing 10.996 s -
Total appsec 11.106 s 109.765 ms (1.0%)
Total iast 11.189 s 193.14 ms (1.8%)
Total profiling 11.041 s 44.58 ms (0.4%) 
gantt
    title petclinic - break down per module: candidate=1.60.0-SNAPSHOT~a8411c6cd7, baseline=1.60.0-SNAPSHOT~786c771187

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.18 ms) : 0, 1180
crashtracking [candidate] (1.206 ms) : 0, 1206
BytebuddyAgent [baseline] (628.376 ms) : 0, 628376
BytebuddyAgent [candidate] (638.43 ms) : 0, 638430
AgentMeter [baseline] (28.754 ms) : 0, 28754
AgentMeter [candidate] (29.363 ms) : 0, 29363
GlobalTracer [baseline] (258.308 ms) : 0, 258308
GlobalTracer [candidate] (261.917 ms) : 0, 261917
AppSec [baseline] (32.838 ms) : 0, 32838
AppSec [candidate] (33.835 ms) : 0, 33835
Debugger [baseline] (63.663 ms) : 0, 63663
Debugger [candidate] (61.906 ms) : 0, 61906
Remote Config [baseline] (619.308 µs) : 0, 619
Remote Config [candidate] (635.774 µs) : 0, 636
Telemetry [baseline] (12.223 ms) : 0, 12223
Telemetry [candidate] (11.713 ms) : 0, 11713
Flare Poller [baseline] (4.568 ms) : 0, 4568
Flare Poller [candidate] (8.823 ms) : 0, 8823
section appsec
crashtracking [baseline] (1.181 ms) : 0, 1181
crashtracking [candidate] (1.188 ms) : 0, 1188
BytebuddyAgent [baseline] (656.867 ms) : 0, 656867
BytebuddyAgent [candidate] (657.6 ms) : 0, 657600
AgentMeter [baseline] (11.757 ms) : 0, 11757
AgentMeter [candidate] (11.886 ms) : 0, 11886
GlobalTracer [baseline] (258.238 ms) : 0, 258238
GlobalTracer [candidate] (258.875 ms) : 0, 258875
IAST [baseline] (25.203 ms) : 0, 25203
IAST [candidate] (25.259 ms) : 0, 25259
AppSec [baseline] (167.766 ms) : 0, 167766
AppSec [candidate] (168.457 ms) : 0, 168457
Debugger [baseline] (67.435 ms) : 0, 67435
Debugger [candidate] (67.609 ms) : 0, 67609
Remote Config [baseline] (680.362 µs) : 0, 680
Remote Config [candidate] (691.913 µs) : 0, 692
Telemetry [baseline] (9.237 ms) : 0, 9237
Telemetry [candidate] (9.242 ms) : 0, 9242
Flare Poller [baseline] (3.704 ms) : 0, 3704
Flare Poller [candidate] (3.668 ms) : 0, 3668
section iast
crashtracking [baseline] (1.196 ms) : 0, 1196
crashtracking [candidate] (1.215 ms) : 0, 1215
BytebuddyAgent [baseline] (795.508 ms) : 0, 795508
BytebuddyAgent [candidate] (797.486 ms) : 0, 797486
AgentMeter [baseline] (11.118 ms) : 0, 11118
AgentMeter [candidate] (11.271 ms) : 0, 11271
GlobalTracer [baseline] (247.871 ms) : 0, 247871
GlobalTracer [candidate] (248.344 ms) : 0, 248344
IAST [baseline] (26.786 ms) : 0, 26786
IAST [candidate] (26.783 ms) : 0, 26783
AppSec [baseline] (32.263 ms) : 0, 32263
AppSec [candidate] (33.126 ms) : 0, 33126
Debugger [baseline] (68.225 ms) : 0, 68225
Debugger [candidate] (68.319 ms) : 0, 68319
Remote Config [baseline] (546.472 µs) : 0, 546
Remote Config [candidate] (541.278 µs) : 0, 541
Telemetry [baseline] (8.644 ms) : 0, 8644
Telemetry [candidate] (8.73 ms) : 0, 8730
Flare Poller [baseline] (3.44 ms) : 0, 3440
Flare Poller [candidate] (3.473 ms) : 0, 3473
section profiling
crashtracking [baseline] (1.219 ms) : 0, 1219
crashtracking [candidate] (1.227 ms) : 0, 1227
BytebuddyAgent [baseline] (684.629 ms) : 0, 684629
BytebuddyAgent [candidate] (688.489 ms) : 0, 688489
AgentMeter [baseline] (8.772 ms) : 0, 8772
AgentMeter [candidate] (8.842 ms) : 0, 8842
GlobalTracer [baseline] (216.398 ms) : 0, 216398
GlobalTracer [candidate] (218.204 ms) : 0, 218204
AppSec [baseline] (32.614 ms) : 0, 32614
AppSec [candidate] (32.891 ms) : 0, 32891
Debugger [baseline] (67.877 ms) : 0, 67877
Debugger [candidate] (68.642 ms) : 0, 68642
Remote Config [baseline] (601.436 µs) : 0, 601
Remote Config [candidate] (607.569 µs) : 0, 608
Telemetry [baseline] (8.835 ms) : 0, 8835
Telemetry [candidate] (8.865 ms) : 0, 8865
Flare Poller [baseline] (3.795 ms) : 0, 3795
Flare Poller [candidate] (3.789 ms) : 0, 3789
ProfilingAgent [baseline] (100.02 ms) : 0, 100020
ProfilingAgent [candidate] (100.414 ms) : 0, 100414
Profiling [baseline] (100.593 ms) : 0, 100593
Profiling [candidate] (100.997 ms) : 0, 100997
Loading
Startup time reports for insecure-bank 
gantt
    title insecure-bank - global startup overhead: candidate=1.60.0-SNAPSHOT~a8411c6cd7, baseline=1.60.0-SNAPSHOT~786c771187

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.066 s) : 0, 1065850
Total [baseline] (8.76 s) : 0, 8759599
Agent [candidate] (1.063 s) : 0, 1062995
Total [candidate] (8.757 s) : 0, 8757445
section iast
Agent [baseline] (1.232 s) : 0, 1232068
Total [baseline] (9.401 s) : 0, 9401418
Agent [candidate] (1.23 s) : 0, 1229779
Total [candidate] (9.353 s) : 0, 9353489
Loading
  • baseline results
Module Variant Duration Δ tracing
Agent tracing 1.066 s -
Agent iast 1.232 s 166.218 ms (15.6%)
Total tracing 8.76 s -
Total iast 9.401 s 641.82 ms (7.3%)
  • candidate results
Module Variant Duration Δ tracing
Agent tracing 1.063 s -
Agent iast 1.23 s 166.784 ms (15.7%)
Total tracing 8.757 s -
Total iast 9.353 s 596.043 ms (6.8%) 
gantt
    title insecure-bank - break down per module: candidate=1.60.0-SNAPSHOT~a8411c6cd7, baseline=1.60.0-SNAPSHOT~786c771187

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.182 ms) : 0, 1182
crashtracking [candidate] (1.181 ms) : 0, 1181
BytebuddyAgent [baseline] (628.987 ms) : 0, 628987
BytebuddyAgent [candidate] (627.157 ms) : 0, 627157
AgentMeter [baseline] (28.74 ms) : 0, 28740
AgentMeter [candidate] (28.812 ms) : 0, 28812
GlobalTracer [baseline] (258.07 ms) : 0, 258070
GlobalTracer [candidate] (257.763 ms) : 0, 257763
AppSec [baseline] (32.94 ms) : 0, 32940
AppSec [candidate] (32.696 ms) : 0, 32696
Debugger [baseline] (61.308 ms) : 0, 61308
Debugger [candidate] (63.294 ms) : 0, 63294
Remote Config [baseline] (622.847 µs) : 0, 623
Remote Config [candidate] (614.615 µs) : 0, 615
Telemetry [baseline] (14.038 ms) : 0, 14038
Telemetry [candidate] (10.587 ms) : 0, 10587
Flare Poller [baseline] (4.57 ms) : 0, 4570
Flare Poller [candidate] (5.472 ms) : 0, 5472
section iast
crashtracking [baseline] (1.184 ms) : 0, 1184
crashtracking [candidate] (1.185 ms) : 0, 1185
BytebuddyAgent [baseline] (796.409 ms) : 0, 796409
BytebuddyAgent [candidate] (795.717 ms) : 0, 795717
AgentMeter [baseline] (11.179 ms) : 0, 11179
AgentMeter [candidate] (11.236 ms) : 0, 11236
GlobalTracer [baseline] (248.362 ms) : 0, 248362
GlobalTracer [candidate] (247.345 ms) : 0, 247345
IAST [baseline] (26.933 ms) : 0, 26933
IAST [candidate] (26.956 ms) : 0, 26956
AppSec [baseline] (33.963 ms) : 0, 33963
AppSec [candidate] (33.824 ms) : 0, 33824
Debugger [baseline] (65.839 ms) : 0, 65839
Debugger [candidate] (65.549 ms) : 0, 65549
Remote Config [baseline] (547.588 µs) : 0, 548
Remote Config [candidate] (547.256 µs) : 0, 547
Telemetry [baseline] (8.754 ms) : 0, 8754
Telemetry [candidate] (8.653 ms) : 0, 8653
Flare Poller [baseline] (3.505 ms) : 0, 3505
Flare Poller [candidate] (3.465 ms) : 0, 3465
Loading

Load

Parameters

Baseline Candidate
baseline_or_candidate baseline candidate
git_branch master mcculls/support-explicit-histogram-boundaries
git_commit_date 1770217470 1770219328
git_commit_sha 786c771 a8411c6
release_version 1.60.0-SNAPSHOT~786c771187 1.60.0-SNAPSHOT~a8411c6cd7
See matching parameters
Baseline Candidate
application insecure-bank insecure-bank
ci_job_date 1770221566 1770221566
ci_job_id 1400824765 1400824765
ci_pipeline_id 94622471 94622471
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-mui7557c 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-mui7557c 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 17 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:petclinic:appsec:high_load better
[-1.531ms; -0.525ms] or [-7.935%; -2.721%]		 unsure
[-1.979ms; -0.272ms] or [-6.341%; -0.870%]		 unstable
[-15.066op/s; +34.628op/s] or [-6.286%; +14.447%]		 18.271ms 30.080ms 249.469op/s 19.299ms 31.205ms 239.688op/s
scenario:load:petclinic:tracing:high_load worse
[+0.620ms; +1.648ms] or [+3.566%; +9.485%]		 worse
[+0.949ms; +2.459ms] or [+3.372%; +8.740%]		 unstable
[-40.353op/s; +11.291op/s] or [-15.322%; +4.287%]		 18.513ms 29.844ms 248.844op/s 17.379ms 28.140ms 263.375op/s
Request duration reports for insecure-bank 
gantt
    title insecure-bank - request duration [CI 0.99] : candidate=1.60.0-SNAPSHOT~a8411c6cd7, baseline=1.60.0-SNAPSHOT~786c771187
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.176 ms) : 1164, 1188
.   : milestone, 1176,
iast (3.314 ms) : 3267, 3362
.   : milestone, 3314,
iast_FULL (5.8 ms) : 5743, 5857
.   : milestone, 5800,
iast_GLOBAL (3.656 ms) : 3590, 3722
.   : milestone, 3656,
profiling (2.133 ms) : 2113, 2154
.   : milestone, 2133,
tracing (1.862 ms) : 1845, 1879
.   : milestone, 1862,
section candidate
no_agent (1.197 ms) : 1185, 1209
.   : milestone, 1197,
iast (3.263 ms) : 3217, 3309
.   : milestone, 3263,
iast_FULL (5.955 ms) : 5895, 6014
.   : milestone, 5955,
iast_GLOBAL (3.519 ms) : 3469, 3569
.   : milestone, 3519,
profiling (2.02 ms) : 2001, 2039
.   : milestone, 2020,
tracing (1.781 ms) : 1766, 1795
.   : milestone, 1781,
Loading
  • baseline results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 1.176 ms [1.164 ms, 1.188 ms] -
iast 3.314 ms [3.267 ms, 3.362 ms] 2.138 ms (181.9%)
iast_FULL 5.8 ms [5.743 ms, 5.857 ms] 4.624 ms (393.3%)
iast_GLOBAL 3.656 ms [3.59 ms, 3.722 ms] 2.48 ms (210.9%)
profiling 2.133 ms [2.113 ms, 2.154 ms] 957.498 µs (81.4%)
tracing 1.862 ms [1.845 ms, 1.879 ms] 686.443 µs (58.4%)
  • candidate results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 1.197 ms [1.185 ms, 1.209 ms] -
iast 3.263 ms [3.217 ms, 3.309 ms] 2.066 ms (172.7%)
iast_FULL 5.955 ms [5.895 ms, 6.014 ms] 4.758 ms (397.6%)
iast_GLOBAL 3.519 ms [3.469 ms, 3.569 ms] 2.322 ms (194.1%)
profiling 2.02 ms [2.001 ms, 2.039 ms] 823.279 µs (68.8%)
tracing 1.781 ms [1.766 ms, 1.795 ms] 583.964 µs (48.8%)
Request duration reports for petclinic 
gantt
    title petclinic - request duration [CI 0.99] : candidate=1.60.0-SNAPSHOT~a8411c6cd7, baseline=1.60.0-SNAPSHOT~786c771187
    dateFormat X
    axisFormat %s
section baseline
no_agent (18.11 ms) : 17926, 18295
.   : milestone, 18110,
appsec (19.477 ms) : 19278, 19676
.   : milestone, 19477,
code_origins (17.571 ms) : 17396, 17747
.   : milestone, 17571,
iast (17.606 ms) : 17432, 17780
.   : milestone, 17606,
profiling (18.577 ms) : 18393, 18762
.   : milestone, 18577,
tracing (17.715 ms) : 17543, 17888
.   : milestone, 17715,
section candidate
no_agent (18.006 ms) : 17821, 18192
.   : milestone, 18006,
appsec (18.708 ms) : 18515, 18901
.   : milestone, 18708,
code_origins (17.779 ms) : 17602, 17957
.   : milestone, 17779,
iast (17.58 ms) : 17403, 17757
.   : milestone, 17580,
profiling (18.661 ms) : 18481, 18842
.   : milestone, 18661,
tracing (18.755 ms) : 18566, 18943
.   : milestone, 18755,
Loading
  • baseline results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 18.11 ms [17.926 ms, 18.295 ms] -
appsec 19.477 ms [19.278 ms, 19.676 ms] 1.367 ms (7.5%)
code_origins 17.571 ms [17.396 ms, 17.747 ms] -539.095 µs (-3.0%)
iast 17.606 ms [17.432 ms, 17.78 ms] -504.093 µs (-2.8%)
profiling 18.577 ms [18.393 ms, 18.762 ms] 466.766 µs (2.6%)
tracing 17.715 ms [17.543 ms, 17.888 ms] -394.883 µs (-2.2%)
  • candidate results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 18.006 ms [17.821 ms, 18.192 ms] -
appsec 18.708 ms [18.515 ms, 18.901 ms] 701.274 µs (3.9%)
code_origins 17.779 ms [17.602 ms, 17.957 ms] -227.037 µs (-1.3%)
iast 17.58 ms [17.403 ms, 17.757 ms] -426.361 µs (-2.4%)
profiling 18.661 ms [18.481 ms, 18.842 ms] 655.01 µs (3.6%)
tracing 18.755 ms [18.566 ms, 18.943 ms] 748.409 µs (4.2%)

Dacapo

Parameters

Baseline Candidate
baseline_or_candidate baseline candidate
git_branch master mcculls/support-explicit-histogram-boundaries
git_commit_date 1770217470 1770219328
git_commit_sha 786c771 a8411c6
release_version 1.60.0-SNAPSHOT~786c771187 1.60.0-SNAPSHOT~a8411c6cd7
See matching parameters
Baseline Candidate
application biojava biojava
ci_job_date 1770221369 1770221369
ci_job_id 1400824768 1400824768
ci_pipeline_id 94622471 94622471
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-0-7nw8n988 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-0-7nw8n988 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 biojava 
gantt
    title biojava - execution time [CI 0.99] : candidate=1.60.0-SNAPSHOT~a8411c6cd7, baseline=1.60.0-SNAPSHOT~786c771187
    dateFormat X
    axisFormat %s
section baseline
no_agent (15.064 s) : 15064000, 15064000
.   : milestone, 15064000,
appsec (14.839 s) : 14839000, 14839000
.   : milestone, 14839000,
iast (18.09 s) : 18090000, 18090000
.   : milestone, 18090000,
iast_GLOBAL (17.834 s) : 17834000, 17834000
.   : milestone, 17834000,
profiling (15.487 s) : 15487000, 15487000
.   : milestone, 15487000,
tracing (14.704 s) : 14704000, 14704000
.   : milestone, 14704000,
section candidate
no_agent (14.931 s) : 14931000, 14931000
.   : milestone, 14931000,
appsec (14.96 s) : 14960000, 14960000
.   : milestone, 14960000,
iast (18.225 s) : 18225000, 18225000
.   : milestone, 18225000,
iast_GLOBAL (18.064 s) : 18064000, 18064000
.   : milestone, 18064000,
profiling (14.856 s) : 14856000, 14856000
.   : milestone, 14856000,
tracing (14.589 s) : 14589000, 14589000
.   : milestone, 14589000,
Loading
  • baseline results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 15.064 s [15.064 s, 15.064 s] -
appsec 14.839 s [14.839 s, 14.839 s] -225.0 ms (-1.5%)
iast 18.09 s [18.09 s, 18.09 s] 3.026 s (20.1%)
iast_GLOBAL 17.834 s [17.834 s, 17.834 s] 2.77 s (18.4%)
profiling 15.487 s [15.487 s, 15.487 s] 423.0 ms (2.8%)
tracing 14.704 s [14.704 s, 14.704 s] -360.0 ms (-2.4%)
  • candidate results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 14.931 s [14.931 s, 14.931 s] -
appsec 14.96 s [14.96 s, 14.96 s] 29.0 ms (0.2%)
iast 18.225 s [18.225 s, 18.225 s] 3.294 s (22.1%)
iast_GLOBAL 18.064 s [18.064 s, 18.064 s] 3.133 s (21.0%)
profiling 14.856 s [14.856 s, 14.856 s] -75.0 ms (-0.5%)
tracing 14.589 s [14.589 s, 14.589 s] -342.0 ms (-2.3%)
Execution time for tomcat 
gantt
    title tomcat - execution time [CI 0.99] : candidate=1.60.0-SNAPSHOT~a8411c6cd7, baseline=1.60.0-SNAPSHOT~786c771187
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.472 ms) : 1461, 1484
.   : milestone, 1472,
appsec (3.765 ms) : 3546, 3984
.   : milestone, 3765,
iast (2.24 ms) : 2171, 2308
.   : milestone, 2240,
iast_GLOBAL (2.294 ms) : 2225, 2363
.   : milestone, 2294,
profiling (2.088 ms) : 2032, 2144
.   : milestone, 2088,
tracing (2.048 ms) : 1995, 2101
.   : milestone, 2048,
section candidate
no_agent (1.477 ms) : 1465, 1488
.   : milestone, 1477,
appsec (3.746 ms) : 3526, 3965
.   : milestone, 3746,
iast (2.246 ms) : 2178, 2314
.   : milestone, 2246,
iast_GLOBAL (2.29 ms) : 2221, 2359
.   : milestone, 2290,
profiling (2.072 ms) : 2017, 2126
.   : milestone, 2072,
tracing (2.057 ms) : 2004, 2110
.   : milestone, 2057,
Loading
  • baseline results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 1.472 ms [1.461 ms, 1.484 ms] -
appsec 3.765 ms [3.546 ms, 3.984 ms] 2.293 ms (155.7%)
iast 2.24 ms [2.171 ms, 2.308 ms] 767.445 µs (52.1%)
iast_GLOBAL 2.294 ms [2.225 ms, 2.363 ms] 822.189 µs (55.9%)
profiling 2.088 ms [2.032 ms, 2.144 ms] 615.918 µs (41.8%)
tracing 2.048 ms [1.995 ms, 2.101 ms] 575.734 µs (39.1%)
  • candidate results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 1.477 ms [1.465 ms, 1.488 ms] -
appsec 3.746 ms [3.526 ms, 3.965 ms] 2.269 ms (153.6%)
iast 2.246 ms [2.178 ms, 2.314 ms] 769.183 µs (52.1%)
iast_GLOBAL 2.29 ms [2.221 ms, 2.359 ms] 813.398 µs (55.1%)
profiling 2.072 ms [2.017 ms, 2.126 ms] 594.922 µs (40.3%)
tracing 2.057 ms [2.004 ms, 2.11 ms] 580.14 µs (39.3%)

dougqh
dougqh approved these changes Feb 4, 2026
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I wish we didn't have the List, so we could avoid boxing.
But I suspect the overhead is okay here

@mcculls
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mcculls commented Feb 4, 2026

I wish we didn't have the List, so we could avoid boxing.

Agreed, we're somewhat limited by the OTel API which uses List<Double> to define boundaries.

But I suspect the overhead is okay here

In most cases the incoming list will be the same default boundaries, and the returned values only exist for a short time in order to snapshot + export the periodic data. So the overhead should be limited.

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mcculls commented Feb 4, 2026

/merge

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gh-worker-devflow-routing-ef8351 bot commented Feb 4, 2026 •
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2026-02-04 18:31:52 UTC ℹ️ Start processing command /merge

2026-02-04 18:31:58 UTC ℹ️ MergeQueue: pull request added to the queue

The expected merge time in master is approximately 1h (p90).

2026-02-04 19:25:59 UTC ℹ️ MergeQueue: This merge request was merged

@gh-worker-dd-mergequeue-cf854d gh-worker-dd-mergequeue-cf854d bot merged commit 13d10a0 into master Feb 4, 2026
548 of 551 checks passed
@gh-worker-dd-mergequeue-cf854d gh-worker-dd-mergequeue-cf854d bot deleted the mcculls/support-explicit-histogram-boundaries branch February 4, 2026 19:25
@github-actions github-actions bot added this to the 1.60.0 milestone Feb 4, 2026
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PerfectSlayer commented Feb 5, 2026

Nice addition.
At some point, I hope at improve the histograms api. For now, it only list the various usages from code base but it could be great to improve its consistency and make it a bit more friendly :)

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