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Creating HashingUtils as alternative to Objects.hash#10628

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dougqh/objects-hash-replacement
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Creating HashingUtils as alternative to Objects.hash#10628
dougqh wants to merge 3 commits intomasterfrom
dougqh/objects-hash-replacement

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@dougqh dougqh commented Feb 18, 2026 •
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What Does This Do

Adds HashingUtils which is a replacement for the hashing routines of java.util.Objects.

Motivation

HashingUtils is specifically designed to avoid var-args allocation which can lead to lots of allocation if hashCode is hot.

HashingBenchmark shows a 3-4x improvement in throughput with HashingUtils.hash vs Objects.hash,
but more importantly no allocation as compared to GiB/secc with Objects.hash.

Additional Notes

In a subsequent PR, I'll update callers of Objects.hash to call HashingUtils.hash instead.

Contributor Checklist

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.

@dougqh
Creating HashingUtils
d2be535 
Adding HashingUtils which is a replacement for the hashing routines of java.util.Objects.

HashingUtils is specifically designed to avoid var-args allocation which can lead to lots of allocation if hashCode is hot.

To demonstrate the potential impact see HashingBenchmark
@dougqh dougqh requested a review from a team as a code owner February 18, 2026 17:20
@dougqh dougqh added the type: enhancement Enhancements and improvements label Feb 18, 2026
@dougqh dougqh requested a review from amarziali February 18, 2026 17:20
@dougqh dougqh added comp: core Tracer core tag: performance Performance related changes labels Feb 18, 2026
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pr-commenter bot commented Feb 18, 2026 •
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Benchmarks

Startup

Parameters

Baseline Candidate
baseline_or_candidate baseline candidate
git_branch master dougqh/objects-hash-replacement
git_commit_date 1771357015 1771447024
git_commit_sha 7f66c79 4f7064f
release_version 1.60.0-SNAPSHOT~7f66c79293 1.60.0-SNAPSHOT~4f7064fd8e
See matching parameters
Baseline Candidate
application insecure-bank insecure-bank
ci_job_date 1771448859 1771448859
ci_job_id 1437209198 1437209198
ci_pipeline_id 97372441 97372441
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-l616y338 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-l616y338 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=1.60.0-SNAPSHOT~4f7064fd8e, baseline=1.60.0-SNAPSHOT~7f66c79293

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.077 s) : 0, 1076795
Total [baseline] (8.789 s) : 0, 8789384
Agent [candidate] (1.068 s) : 0, 1067662
Total [candidate] (8.758 s) : 0, 8758369
section iast
Agent [baseline] (1.241 s) : 0, 1241402
Total [baseline] (9.372 s) : 0, 9371670
Agent [candidate] (1.243 s) : 0, 1242733
Total [candidate] (9.399 s) : 0, 9399229
Loading
  • baseline results
Module Variant Duration Δ tracing
Agent tracing 1.077 s -
Agent iast 1.241 s 164.607 ms (15.3%)
Total tracing 8.789 s -
Total iast 9.372 s 582.286 ms (6.6%)
  • candidate results
Module Variant Duration Δ tracing
Agent tracing 1.068 s -
Agent iast 1.243 s 175.071 ms (16.4%)
Total tracing 8.758 s -
Total iast 9.399 s 640.86 ms (7.3%) 
gantt
    title insecure-bank - break down per module: candidate=1.60.0-SNAPSHOT~4f7064fd8e, baseline=1.60.0-SNAPSHOT~7f66c79293

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.201 ms) : 0, 1201
crashtracking [candidate] (1.186 ms) : 0, 1186
BytebuddyAgent [baseline] (636.017 ms) : 0, 636017
BytebuddyAgent [candidate] (630.718 ms) : 0, 630718
AgentMeter [baseline] (29.415 ms) : 0, 29415
AgentMeter [candidate] (29.065 ms) : 0, 29065
GlobalTracer [baseline] (260.719 ms) : 0, 260719
GlobalTracer [candidate] (258.493 ms) : 0, 258493
AppSec [baseline] (33.512 ms) : 0, 33512
AppSec [candidate] (32.834 ms) : 0, 32834
Debugger [baseline] (64.2 ms) : 0, 64200
Debugger [candidate] (61.602 ms) : 0, 61602
Remote Config [baseline] (627.244 µs) : 0, 627
Remote Config [candidate] (634.451 µs) : 0, 634
Telemetry [baseline] (11.661 ms) : 0, 11661
Telemetry [candidate] (11.574 ms) : 0, 11574
Flare Poller [baseline] (3.815 ms) : 0, 3815
Flare Poller [candidate] (6.098 ms) : 0, 6098
section iast
crashtracking [baseline] (1.2 ms) : 0, 1200
crashtracking [candidate] (1.193 ms) : 0, 1193
BytebuddyAgent [baseline] (802.736 ms) : 0, 802736
BytebuddyAgent [candidate] (803.639 ms) : 0, 803639
AgentMeter [baseline] (11.535 ms) : 0, 11535
AgentMeter [candidate] (11.537 ms) : 0, 11537
GlobalTracer [baseline] (249.626 ms) : 0, 249626
GlobalTracer [candidate] (249.797 ms) : 0, 249797
AppSec [baseline] (35.205 ms) : 0, 35205
AppSec [candidate] (35.085 ms) : 0, 35085
Debugger [baseline] (65.315 ms) : 0, 65315
Debugger [candidate] (65.728 ms) : 0, 65728
Remote Config [baseline] (544.531 µs) : 0, 545
Remote Config [candidate] (541.068 µs) : 0, 541
Telemetry [baseline] (8.691 ms) : 0, 8691
Telemetry [candidate] (8.676 ms) : 0, 8676
Flare Poller [baseline] (3.496 ms) : 0, 3496
Flare Poller [candidate] (3.526 ms) : 0, 3526
IAST [baseline] (27.439 ms) : 0, 27439
IAST [candidate] (27.52 ms) : 0, 27520
Loading
Startup time reports for petclinic 
gantt
    title petclinic - global startup overhead: candidate=1.60.0-SNAPSHOT~4f7064fd8e, baseline=1.60.0-SNAPSHOT~7f66c79293

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.074 s) : 0, 1073514
Total [baseline] (11.032 s) : 0, 11031601
Agent [candidate] (1.07 s) : 0, 1069735
Total [candidate] (10.825 s) : 0, 10825244
section appsec
Agent [baseline] (1.242 s) : 0, 1241774
Total [baseline] (11.025 s) : 0, 11024905
Agent [candidate] (1.24 s) : 0, 1239778
Total [candidate] (11.11 s) : 0, 11109660
section iast
Agent [baseline] (1.247 s) : 0, 1247352
Total [baseline] (11.255 s) : 0, 11254665
Agent [candidate] (1.233 s) : 0, 1233191
Total [candidate] (11.288 s) : 0, 11287753
section profiling
Agent [baseline] (1.201 s) : 0, 1201243
Total [baseline] (11.05 s) : 0, 11049572
Agent [candidate] (1.19 s) : 0, 1189990
Total [candidate] (10.998 s) : 0, 10997859
Loading
  • baseline results
Module Variant Duration Δ tracing
Agent tracing 1.074 s -
Agent appsec 1.242 s 168.26 ms (15.7%)
Agent iast 1.247 s 173.838 ms (16.2%)
Agent profiling 1.201 s 127.729 ms (11.9%)
Total tracing 11.032 s -
Total appsec 11.025 s -6.696 ms (-0.1%)
Total iast 11.255 s 223.065 ms (2.0%)
Total profiling 11.05 s 17.971 ms (0.2%)
  • candidate results
Module Variant Duration Δ tracing
Agent tracing 1.07 s -
Agent appsec 1.24 s 170.043 ms (15.9%)
Agent iast 1.233 s 163.455 ms (15.3%)
Agent profiling 1.19 s 120.254 ms (11.2%)
Total tracing 10.825 s -
Total appsec 11.11 s 284.416 ms (2.6%)
Total iast 11.288 s 462.51 ms (4.3%)
Total profiling 10.998 s 172.616 ms (1.6%) 
gantt
    title petclinic - break down per module: candidate=1.60.0-SNAPSHOT~4f7064fd8e, baseline=1.60.0-SNAPSHOT~7f66c79293

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.193 ms) : 0, 1193
crashtracking [candidate] (1.181 ms) : 0, 1181
BytebuddyAgent [baseline] (634.24 ms) : 0, 634240
BytebuddyAgent [candidate] (631.257 ms) : 0, 631257
AgentMeter [baseline] (29.162 ms) : 0, 29162
AgentMeter [candidate] (29.056 ms) : 0, 29056
GlobalTracer [baseline] (259.199 ms) : 0, 259199
GlobalTracer [candidate] (258.18 ms) : 0, 258180
AppSec [baseline] (33.388 ms) : 0, 33388
AppSec [candidate] (32.987 ms) : 0, 32987
Debugger [baseline] (62.031 ms) : 0, 62031
Debugger [candidate] (62.64 ms) : 0, 62640
Remote Config [baseline] (657.308 µs) : 0, 657
Remote Config [candidate] (625.471 µs) : 0, 625
Telemetry [baseline] (13.4 ms) : 0, 13400
Telemetry [candidate] (11.401 ms) : 0, 11401
Flare Poller [baseline] (4.576 ms) : 0, 4576
Flare Poller [candidate] (7.022 ms) : 0, 7022
section appsec
crashtracking [baseline] (1.185 ms) : 0, 1185
crashtracking [candidate] (1.182 ms) : 0, 1182
BytebuddyAgent [baseline] (659.114 ms) : 0, 659114
BytebuddyAgent [candidate] (659.03 ms) : 0, 659030
AgentMeter [baseline] (11.965 ms) : 0, 11965
AgentMeter [candidate] (11.955 ms) : 0, 11955
GlobalTracer [baseline] (258.456 ms) : 0, 258456
GlobalTracer [candidate] (258.254 ms) : 0, 258254
AppSec [baseline] (168.761 ms) : 0, 168761
AppSec [candidate] (168.202 ms) : 0, 168202
Debugger [baseline] (67.464 ms) : 0, 67464
Debugger [candidate] (66.828 ms) : 0, 66828
Remote Config [baseline] (669.393 µs) : 0, 669
Remote Config [candidate] (636.276 µs) : 0, 636
Telemetry [baseline] (9.735 ms) : 0, 9735
Telemetry [candidate] (9.496 ms) : 0, 9496
Flare Poller [baseline] (3.721 ms) : 0, 3721
Flare Poller [candidate] (3.585 ms) : 0, 3585
IAST [baseline] (25.237 ms) : 0, 25237
IAST [candidate] (25.204 ms) : 0, 25204
section iast
crashtracking [baseline] (1.196 ms) : 0, 1196
crashtracking [candidate] (1.181 ms) : 0, 1181
BytebuddyAgent [baseline] (806.6 ms) : 0, 806600
BytebuddyAgent [candidate] (797.344 ms) : 0, 797344
AgentMeter [baseline] (11.431 ms) : 0, 11431
AgentMeter [candidate] (11.23 ms) : 0, 11230
GlobalTracer [baseline] (250.962 ms) : 0, 250962
GlobalTracer [candidate] (248.025 ms) : 0, 248025
AppSec [baseline] (32.648 ms) : 0, 32648
AppSec [candidate] (34.545 ms) : 0, 34545
Debugger [baseline] (68.655 ms) : 0, 68655
Debugger [candidate] (65.861 ms) : 0, 65861
Remote Config [baseline] (553.836 µs) : 0, 554
Remote Config [candidate] (549.852 µs) : 0, 550
Telemetry [baseline] (8.634 ms) : 0, 8634
Telemetry [candidate] (8.615 ms) : 0, 8615
Flare Poller [baseline] (3.486 ms) : 0, 3486
Flare Poller [candidate] (3.457 ms) : 0, 3457
IAST [baseline] (27.453 ms) : 0, 27453
IAST [candidate] (26.962 ms) : 0, 26962
section profiling
ProfilingAgent [baseline] (100.298 ms) : 0, 100298
ProfilingAgent [candidate] (99.634 ms) : 0, 99634
crashtracking [baseline] (1.242 ms) : 0, 1242
crashtracking [candidate] (1.215 ms) : 0, 1215
BytebuddyAgent [baseline] (688.822 ms) : 0, 688822
BytebuddyAgent [candidate] (682.12 ms) : 0, 682120
AgentMeter [baseline] (8.668 ms) : 0, 8668
AgentMeter [candidate] (8.627 ms) : 0, 8627
GlobalTracer [baseline] (217.283 ms) : 0, 217283
GlobalTracer [candidate] (215.487 ms) : 0, 215487
AppSec [baseline] (32.986 ms) : 0, 32986
AppSec [candidate] (32.445 ms) : 0, 32445
Debugger [baseline] (68.141 ms) : 0, 68141
Debugger [candidate] (67.237 ms) : 0, 67237
Remote Config [baseline] (637.462 µs) : 0, 637
Remote Config [candidate] (629.486 µs) : 0, 629
Telemetry [baseline] (8.889 ms) : 0, 8889
Telemetry [candidate] (8.911 ms) : 0, 8911
Flare Poller [baseline] (3.787 ms) : 0, 3787
Flare Poller [candidate] (3.747 ms) : 0, 3747
Profiling [baseline] (100.873 ms) : 0, 100873
Profiling [candidate] (100.213 ms) : 0, 100213
Loading

Load

Parameters

Baseline Candidate
baseline_or_candidate baseline candidate
git_branch master dougqh/objects-hash-replacement
git_commit_date 1771357015 1771447024
git_commit_sha 7f66c79 4f7064f
release_version 1.60.0-SNAPSHOT~7f66c79293 1.60.0-SNAPSHOT~4f7064fd8e
See matching parameters
Baseline Candidate
application insecure-bank insecure-bank
ci_job_date 1771449345 1771449345
ci_job_id 1437209199 1437209199
ci_pipeline_id 97372441 97372441
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-jw5t4tbh 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-jw5t4tbh 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 3 performance improvements and 2 performance regressions! Performance is the same for 15 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_FULL:high_load worse
[+138.466µs; +349.887µs] or [+2.680%; +6.771%]		 worse
[+460.031µs; +1179.561µs] or [+3.769%; +9.664%]		 unstable
[-121.993op/s; +47.181op/s] or [-15.307%; +5.920%]		 5.411ms 13.025ms 759.562op/s 5.167ms 12.205ms 796.969op/s
scenario:load:petclinic:tracing:high_load better
[-1175.522µs; -497.774µs] or [-6.422%; -2.720%]		 unsure
[-1615.217µs; -201.201µs] or [-5.491%; -0.684%]		 unstable
[-14.150op/s; +38.712op/s] or [-5.649%; +15.454%]		 17.467ms 28.505ms 262.781op/s 18.303ms 29.413ms 250.500op/s
scenario:load:petclinic:iast:high_load better
[-1349.252µs; -650.322µs] or [-7.316%; -3.526%]		 unsure
[-1610.955µs; -321.348µs] or [-5.387%; -1.075%]		 unstable
[-14.271op/s; +38.021op/s] or [-5.729%; +15.262%]		 17.442ms 28.936ms 261.000op/s 18.441ms 29.902ms 249.125op/s
scenario:load:petclinic:profiling:high_load better
[-1.571ms; -0.667ms] or [-8.054%; -3.422%]		 unsure
[-1.879ms; -0.527ms] or [-6.058%; -1.699%]		 unstable
[-12.212op/s; +37.837op/s] or [-5.154%; +15.969%]		 18.383ms 29.817ms 249.750op/s 19.502ms 31.020ms 236.938op/s
Request duration reports for petclinic 
gantt
    title petclinic - request duration [CI 0.99] : candidate=1.60.0-SNAPSHOT~4f7064fd8e, baseline=1.60.0-SNAPSHOT~7f66c79293
    dateFormat X
    axisFormat %s
section baseline
no_agent (17.448 ms) : 17271, 17625
.   : milestone, 17448,
appsec (19.149 ms) : 18954, 19343
.   : milestone, 19149,
code_origins (17.782 ms) : 17603, 17961
.   : milestone, 17782,
iast (18.732 ms) : 18544, 18920
.   : milestone, 18732,
profiling (19.704 ms) : 19505, 19903
.   : milestone, 19704,
tracing (18.63 ms) : 18446, 18813
.   : milestone, 18630,
section candidate
no_agent (17.941 ms) : 17765, 18117
.   : milestone, 17941,
appsec (18.772 ms) : 18578, 18966
.   : milestone, 18772,
code_origins (17.793 ms) : 17615, 17971
.   : milestone, 17793,
iast (17.879 ms) : 17697, 18061
.   : milestone, 17879,
profiling (18.688 ms) : 18502, 18874
.   : milestone, 18688,
tracing (17.758 ms) : 17581, 17935
.   : milestone, 17758,
Loading
  • baseline results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 17.448 ms [17.271 ms, 17.625 ms] -
appsec 19.149 ms [18.954 ms, 19.343 ms] 1.701 ms (9.8%)
code_origins 17.782 ms [17.603 ms, 17.961 ms] 334.505 µs (1.9%)
iast 18.732 ms [18.544 ms, 18.92 ms] 1.285 ms (7.4%)
profiling 19.704 ms [19.505 ms, 19.903 ms] 2.256 ms (12.9%)
tracing 18.63 ms [18.446 ms, 18.813 ms] 1.182 ms (6.8%)
  • candidate results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 17.941 ms [17.765 ms, 18.117 ms] -
appsec 18.772 ms [18.578 ms, 18.966 ms] 831.045 µs (4.6%)
code_origins 17.793 ms [17.615 ms, 17.971 ms] -147.888 µs (-0.8%)
iast 17.879 ms [17.697 ms, 18.061 ms] -62.162 µs (-0.3%)
profiling 18.688 ms [18.502 ms, 18.874 ms] 746.824 µs (4.2%)
tracing 17.758 ms [17.581 ms, 17.935 ms] -183.158 µs (-1.0%)
Request duration reports for insecure-bank 
gantt
    title insecure-bank - request duration [CI 0.99] : candidate=1.60.0-SNAPSHOT~4f7064fd8e, baseline=1.60.0-SNAPSHOT~7f66c79293
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.167 ms) : 1155, 1178
.   : milestone, 1167,
iast (3.185 ms) : 3146, 3224
.   : milestone, 3185,
iast_FULL (5.801 ms) : 5744, 5858
.   : milestone, 5801,
iast_GLOBAL (3.495 ms) : 3446, 3543
.   : milestone, 3495,
profiling (2.143 ms) : 2123, 2163
.   : milestone, 2143,
tracing (1.783 ms) : 1768, 1797
.   : milestone, 1783,
section candidate
no_agent (1.171 ms) : 1160, 1182
.   : milestone, 1171,
iast (3.189 ms) : 3143, 3235
.   : milestone, 3189,
iast_FULL (6.092 ms) : 6030, 6155
.   : milestone, 6092,
iast_GLOBAL (3.641 ms) : 3588, 3694
.   : milestone, 3641,
profiling (2.074 ms) : 2055, 2093
.   : milestone, 2074,
tracing (1.779 ms) : 1764, 1794
.   : milestone, 1779,
Loading
  • baseline results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 1.167 ms [1.155 ms, 1.178 ms] -
iast 3.185 ms [3.146 ms, 3.224 ms] 2.018 ms (173.0%)
iast_FULL 5.801 ms [5.744 ms, 5.858 ms] 4.634 ms (397.1%)
iast_GLOBAL 3.495 ms [3.446 ms, 3.543 ms] 2.328 ms (199.5%)
profiling 2.143 ms [2.123 ms, 2.163 ms] 975.806 µs (83.6%)
tracing 1.783 ms [1.768 ms, 1.797 ms] 615.845 µs (52.8%)
  • candidate results
Variant Request duration [CI 0.99] Δ no_agent
no_agent 1.171 ms [1.16 ms, 1.182 ms] -
iast 3.189 ms [3.143 ms, 3.235 ms] 2.018 ms (172.3%)
iast_FULL 6.092 ms [6.03 ms, 6.155 ms] 4.921 ms (420.3%)
iast_GLOBAL 3.641 ms [3.588 ms, 3.694 ms] 2.47 ms (210.9%)
profiling 2.074 ms [2.055 ms, 2.093 ms] 903.142 µs (77.1%)
tracing 1.779 ms [1.764 ms, 1.794 ms] 607.909 µs (51.9%)

Dacapo

Parameters

Baseline Candidate
baseline_or_candidate baseline candidate
git_branch master dougqh/objects-hash-replacement
git_commit_date 1771357015 1771447024
git_commit_sha 7f66c79 4f7064f
release_version 1.60.0-SNAPSHOT~7f66c79293 1.60.0-SNAPSHOT~4f7064fd8e
See matching parameters
Baseline Candidate
application biojava biojava
ci_job_date 1771449067 1771449067
ci_job_id 1437209201 1437209201
ci_pipeline_id 97372441 97372441
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-deqwj1hm 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-deqwj1hm 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=1.60.0-SNAPSHOT~4f7064fd8e, baseline=1.60.0-SNAPSHOT~7f66c79293
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.473 ms) : 1461, 1484
.   : milestone, 1473,
appsec (3.755 ms) : 3534, 3976
.   : milestone, 3755,
iast (2.253 ms) : 2184, 2322
.   : milestone, 2253,
iast_GLOBAL (2.296 ms) : 2226, 2365
.   : milestone, 2296,
profiling (2.099 ms) : 2043, 2156
.   : milestone, 2099,
tracing (2.065 ms) : 2011, 2119
.   : milestone, 2065,
section candidate
no_agent (1.467 ms) : 1456, 1479
.   : milestone, 1467,
appsec (3.716 ms) : 3500, 3932
.   : milestone, 3716,
iast (2.258 ms) : 2188, 2327
.   : milestone, 2258,
iast_GLOBAL (2.295 ms) : 2225, 2365
.   : milestone, 2295,
profiling (2.07 ms) : 2016, 2125
.   : milestone, 2070,
tracing (2.064 ms) : 2010, 2118
.   : milestone, 2064,
Loading
  • baseline results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 1.473 ms [1.461 ms, 1.484 ms] -
appsec 3.755 ms [3.534 ms, 3.976 ms] 2.282 ms (155.0%)
iast 2.253 ms [2.184 ms, 2.322 ms] 780.675 µs (53.0%)
iast_GLOBAL 2.296 ms [2.226 ms, 2.365 ms] 822.99 µs (55.9%)
profiling 2.099 ms [2.043 ms, 2.156 ms] 626.73 µs (42.6%)
tracing 2.065 ms [2.011 ms, 2.119 ms] 591.905 µs (40.2%)
  • candidate results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 1.467 ms [1.456 ms, 1.479 ms] -
appsec 3.716 ms [3.5 ms, 3.932 ms] 2.249 ms (153.2%)
iast 2.258 ms [2.188 ms, 2.327 ms] 790.369 µs (53.9%)
iast_GLOBAL 2.295 ms [2.225 ms, 2.365 ms] 827.747 µs (56.4%)
profiling 2.07 ms [2.016 ms, 2.125 ms] 602.898 µs (41.1%)
tracing 2.064 ms [2.01 ms, 2.118 ms] 596.634 µs (40.7%)
Execution time for biojava 
gantt
    title biojava - execution time [CI 0.99] : candidate=1.60.0-SNAPSHOT~4f7064fd8e, baseline=1.60.0-SNAPSHOT~7f66c79293
    dateFormat X
    axisFormat %s
section baseline
no_agent (15.335 s) : 15335000, 15335000
.   : milestone, 15335000,
appsec (14.849 s) : 14849000, 14849000
.   : milestone, 14849000,
iast (18.155 s) : 18155000, 18155000
.   : milestone, 18155000,
iast_GLOBAL (17.974 s) : 17974000, 17974000
.   : milestone, 17974000,
profiling (15.429 s) : 15429000, 15429000
.   : milestone, 15429000,
tracing (14.794 s) : 14794000, 14794000
.   : milestone, 14794000,
section candidate
no_agent (15.328 s) : 15328000, 15328000
.   : milestone, 15328000,
appsec (14.727 s) : 14727000, 14727000
.   : milestone, 14727000,
iast (18.432 s) : 18432000, 18432000
.   : milestone, 18432000,
iast_GLOBAL (17.987 s) : 17987000, 17987000
.   : milestone, 17987000,
profiling (15.112 s) : 15112000, 15112000
.   : milestone, 15112000,
tracing (15.163 s) : 15163000, 15163000
.   : milestone, 15163000,
Loading
  • baseline results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 15.335 s [15.335 s, 15.335 s] -
appsec 14.849 s [14.849 s, 14.849 s] -486.0 ms (-3.2%)
iast 18.155 s [18.155 s, 18.155 s] 2.82 s (18.4%)
iast_GLOBAL 17.974 s [17.974 s, 17.974 s] 2.639 s (17.2%)
profiling 15.429 s [15.429 s, 15.429 s] 94.0 ms (0.6%)
tracing 14.794 s [14.794 s, 14.794 s] -541.0 ms (-3.5%)
  • candidate results
Variant Execution Time [CI 0.99] Δ no_agent
no_agent 15.328 s [15.328 s, 15.328 s] -
appsec 14.727 s [14.727 s, 14.727 s] -601.0 ms (-3.9%)
iast 18.432 s [18.432 s, 18.432 s] 3.104 s (20.3%)
iast_GLOBAL 17.987 s [17.987 s, 17.987 s] 2.659 s (17.3%)
profiling 15.112 s [15.112 s, 15.112 s] -216.0 ms (-1.4%)
tracing 15.163 s [15.163 s, 15.163 s] -165.0 ms (-1.1%)

@dougqh dougqh changed the title Creating HashingUtils Creating HashingUtils as alternative to Objects.hash Feb 18, 2026
amarziali
amarziali reviewed Feb 19, 2026
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internal-api/src/jmh/java/datadog/trace/util/HashingBenchmark.java
@Fork(2)
@Warmup(iterations = 2)
@Measurement(iterations = 3)
@Threads(8)
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perhaps this adds only noise comparing doing it on a single core

amarziali
amarziali approved these changes Feb 19, 2026
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nice improvement

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

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