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Remove lz4_flex from libdd-profiling #1427

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Remove lz4_flex from libdd-profiling #1427

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@realFlowControl realFlowControl commented Dec 28, 2025

What does this PR do?

Remove the lz4_flex crate from the dependencies and update test to use uncompressed file

Motivation

We removed lz4 in favour of zstd, but I saw an lz4 crate being compiled every time I build dd-trace-php and we should not compile stuff we don't need anymore.

Additional Notes

Anything else we should know when reviewing?

How to test the change?

cargo test

@realFlowControl realFlowControl requested a review from a team as a code owner December 28, 2025 10:45
@realFlowControl realFlowControl changed the title Remove lz4 crate Remove lz4_flex from libdd-profiling Dec 28, 2025
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codecov-commenter commented Dec 28, 2025 •
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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.42%. Comparing base (e7c2ff8) to head (6d390ee).

Additional details and impacted files 
@@            Coverage Diff             @@
##             main    #1427      +/-   ##
==========================================
- Coverage   71.44%   71.42%   -0.03%     
==========================================
  Files         411      411              
  Lines       66044    66044              
==========================================
- Hits        47186    47172      -14     
- Misses      18858    18872      +14
Components Coverage Δ
libdd-crashtracker 58.70% <ø> (ø)
libdd-crashtracker-ffi 14.72% <ø> (ø)
libdd-alloc 98.73% <ø> (ø)
libdd-data-pipeline 86.02% <ø> (ø)
libdd-data-pipeline-ffi 77.74% <ø> (ø)
libdd-common 81.33% <ø> (ø)
libdd-common-ffi 74.96% <ø> (ø)
libdd-telemetry 59.95% <ø> (ø)
libdd-telemetry-ffi 21.17% <ø> (ø)
libdd-dogstatsd-client 83.75% <ø> (ø)
datadog-ipc 82.61% <ø> (ø)
libdd-profiling 81.72% <ø> (ø)
libdd-profiling-ffi 67.83% <ø> (ø)
datadog-sidecar 35.88% <ø> (ø)
datdog-sidecar-ffi 10.88% <ø> (ø)
spawn-worker 55.18% <ø> (ø)
libdd-tinybytes 92.44% <ø> (ø)
libdd-trace-normalization 82.33% <ø> (ø)
libdd-trace-obfuscation 94.17% <ø> (ø)
libdd-trace-protobuf 61.18% <ø> (ø)
libdd-trace-utils 89.92% <ø> (ø)
datadog-tracer-flare 62.06% <ø> (ø)
libdd-log 75.57% <ø> (ø)
🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

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pr-commenter bot commented Dec 28, 2025 •
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Benchmarks

Comparison

Benchmark execution time: 2026-01-03 01:41:43

Comparing candidate commit 6d390ee in PR branch florian/remove-lz4 with baseline commit e7c2ff8 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 57 metrics, 2 unstable metrics.

Candidate

Candidate benchmark details

Group 1

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
tags/replace_trace_tags execution_time 2.441µs 2.468µs ± 0.032µs 2.455µs ± 0.007µs 2.467µs 2.545µs 2.573µs 2.587µs 5.38% 1.899 2.620 1.31% 0.002µs 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
tags/replace_trace_tags execution_time [2.463µs; 2.472µs] or [-0.182%; +0.182%] None None None

Group 2

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
benching deserializing traces from msgpack to their internal representation execution_time 60.011ms 60.512ms ± 2.045ms 60.279ms ± 0.071ms 60.345ms 60.452ms 70.211ms 79.715ms 32.24% 8.668 75.577 3.37% 0.145ms 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
benching deserializing traces from msgpack to their internal representation execution_time [60.228ms; 60.795ms] or [-0.468%; +0.468%] None None None

Group 3

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
write only interface execution_time 1.180µs 3.239µs ± 1.461µs 3.029µs ± 0.025µs 3.055µs 3.682µs 14.177µs 15.089µs 398.14% 7.422 55.959 45.00% 0.103µs 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
write only interface execution_time [3.037µs; 3.442µs] or [-6.252%; +6.252%] None None None

Group 4

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
profile_add_sample_frames_x1000 execution_time 3.946ms 3.952ms ± 0.007ms 3.951ms ± 0.002ms 3.953ms 3.957ms 3.966ms 4.044ms 2.36% 10.191 124.409 0.18% 0.001ms 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
profile_add_sample_frames_x1000 execution_time [3.951ms; 3.953ms] or [-0.026%; +0.026%] None None None

Group 5

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
two way interface execution_time 18.222µs 26.193µs ± 9.700µs 18.673µs ± 0.364µs 35.028µs 43.922µs 51.188µs 68.237µs 265.43% 0.982 0.545 36.94% 0.686µs 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
two way interface execution_time [24.849µs; 27.538µs] or [-5.132%; +5.132%] None None None

Group 6

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
normalization/normalize_service/normalize_service/A0000000000000000000000000000000000000000000000000... execution_time 533.807µs 535.158µs ± 0.754µs 535.103µs ± 0.514µs 535.620µs 536.292µs 537.082µs 539.024µs 0.73% 1.091 3.041 0.14% 0.053µs 1 200
normalization/normalize_service/normalize_service/A0000000000000000000000000000000000000000000000000... throughput 1855203.343op/s 1868609.628op/s ± 2627.929op/s 1868799.399op/s ± 1795.017op/s 1870541.681op/s 1872073.323op/s 1872804.434op/s 1873337.895op/s 0.24% -1.075 2.960 0.14% 185.823op/s 1 200
normalization/normalize_service/normalize_service/Data🐨dog🐶 繋がっ⛰てて execution_time 380.098µs 380.695µs ± 0.260µs 380.692µs ± 0.162µs 380.855µs 381.111µs 381.305µs 381.424µs 0.19% 0.138 -0.065 0.07% 0.018µs 1 200
normalization/normalize_service/normalize_service/Data🐨dog🐶 繋がっ⛰てて throughput 2621755.165op/s 2626777.073op/s ± 1794.263op/s 2626796.315op/s ± 1119.159op/s 2627902.890op/s 2629633.696op/s 2630586.244op/s 2630901.957op/s 0.16% -0.134 -0.068 0.07% 126.874op/s 1 200
normalization/normalize_service/normalize_service/Test Conversion 0f Weird !@#$%^&**() Characters execution_time 189.784µs 190.559µs ± 0.252µs 190.561µs ± 0.169µs 190.739µs 190.936µs 191.130µs 191.198µs 0.33% -0.150 0.050 0.13% 0.018µs 1 200
normalization/normalize_service/normalize_service/Test Conversion 0f Weird !@#$%^&**() Characters throughput 5230169.010op/s 5247738.755op/s ± 6950.311op/s 5247657.124op/s ± 4655.007op/s 5251970.702op/s 5259373.665op/s 5264649.426op/s 5269161.610op/s 0.41% 0.158 0.054 0.13% 491.461op/s 1 200
normalization/normalize_service/normalize_service/[empty string] execution_time 36.994µs 37.205µs ± 0.077µs 37.219µs ± 0.050µs 37.266µs 37.308µs 37.343µs 37.385µs 0.45% -0.548 -0.027 0.21% 0.005µs 1 200
normalization/normalize_service/normalize_service/[empty string] throughput 26748387.529op/s 26878148.644op/s ± 55838.521op/s 26868306.605op/s ± 36066.270op/s 26911293.026op/s 26993354.798op/s 27024535.163op/s 27031743.036op/s 0.61% 0.558 -0.012 0.21% 3948.380op/s 1 200
normalization/normalize_service/normalize_service/test_ASCII execution_time 45.772µs 45.902µs ± 0.098µs 45.899µs ± 0.044µs 45.943µs 45.981µs 46.005µs 47.022µs 2.45% 7.548 85.224 0.21% 0.007µs 1 200
normalization/normalize_service/normalize_service/test_ASCII throughput 21266435.115op/s 21785601.963op/s ± 45565.500op/s 21786748.162op/s ± 20665.111op/s 21809010.138op/s 21830624.481op/s 21847008.217op/s 21847566.133op/s 0.28% -7.358 82.380 0.21% 3221.967op/s 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
normalization/normalize_service/normalize_service/A0000000000000000000000000000000000000000000000000... execution_time [535.054µs; 535.263µs] or [-0.020%; +0.020%] None None None
normalization/normalize_service/normalize_service/A0000000000000000000000000000000000000000000000000... throughput [1868245.422op/s; 1868973.833op/s] or [-0.019%; +0.019%] None None None
normalization/normalize_service/normalize_service/Data🐨dog🐶 繋がっ⛰てて execution_time [380.659µs; 380.731µs] or [-0.009%; +0.009%] None None None
normalization/normalize_service/normalize_service/Data🐨dog🐶 繋がっ⛰てて throughput [2626528.405op/s; 2627025.740op/s] or [-0.009%; +0.009%] None None None
normalization/normalize_service/normalize_service/Test Conversion 0f Weird !@#$%^&**() Characters execution_time [190.524µs; 190.594µs] or [-0.018%; +0.018%] None None None
normalization/normalize_service/normalize_service/Test Conversion 0f Weird !@#$%^&**() Characters throughput [5246775.509op/s; 5248702.002op/s] or [-0.018%; +0.018%] None None None
normalization/normalize_service/normalize_service/[empty string] execution_time [37.194µs; 37.216µs] or [-0.029%; +0.029%] None None None
normalization/normalize_service/normalize_service/[empty string] throughput [26870409.962op/s; 26885887.326op/s] or [-0.029%; +0.029%] None None None
normalization/normalize_service/normalize_service/test_ASCII execution_time [45.889µs; 45.916µs] or [-0.029%; +0.029%] None None None
normalization/normalize_service/normalize_service/test_ASCII throughput [21779287.023op/s; 21791916.903op/s] or [-0.029%; +0.029%] None None None

Group 7

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
concentrator/add_spans_to_concentrator execution_time 10.642ms 10.674ms ± 0.014ms 10.673ms ± 0.008ms 10.682ms 10.697ms 10.706ms 10.760ms 0.82% 1.462 6.509 0.13% 0.001ms 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
concentrator/add_spans_to_concentrator execution_time [10.672ms; 10.676ms] or [-0.018%; +0.018%] None None None

Group 8

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
credit_card/is_card_number/ execution_time 3.897µs 3.911µs ± 0.003µs 3.911µs ± 0.002µs 3.913µs 3.915µs 3.917µs 3.919µs 0.20% -0.443 4.002 0.07% 0.000µs 1 200
credit_card/is_card_number/ throughput 255170546.633op/s 255671568.907op/s ± 168067.166op/s 255677027.441op/s ± 99334.339op/s 255772082.991op/s 255913174.395op/s 255940344.367op/s 256608702.738op/s 0.36% 0.454 4.056 0.07% 11884.143op/s 1 200
credit_card/is_card_number/ 3782-8224-6310-005 execution_time 77.338µs 78.377µs ± 0.565µs 78.325µs ± 0.405µs 78.751µs 79.335µs 79.765µs 80.462µs 2.73% 0.525 0.160 0.72% 0.040µs 1 200
credit_card/is_card_number/ 3782-8224-6310-005 throughput 12428175.100op/s 12759583.165op/s ± 91630.123op/s 12767342.671op/s ± 66351.553op/s 12830654.680op/s 12890887.469op/s 12925506.321op/s 12930232.004op/s 1.28% -0.485 0.076 0.72% 6479.228op/s 1 200
credit_card/is_card_number/ 378282246310005 execution_time 70.908µs 71.743µs ± 0.562µs 71.628µs ± 0.348µs 72.010µs 72.767µs 73.320µs 74.219µs 3.62% 1.135 1.832 0.78% 0.040µs 1 200
credit_card/is_card_number/ 378282246310005 throughput 13473586.958op/s 13939454.381op/s ± 108196.214op/s 13960989.592op/s ± 67910.499op/s 14024990.101op/s 14076905.210op/s 14088796.871op/s 14102776.807op/s 1.02% -1.077 1.602 0.77% 7650.628op/s 1 200
credit_card/is_card_number/37828224631 execution_time 3.891µs 3.911µs ± 0.003µs 3.911µs ± 0.002µs 3.913µs 3.918µs 3.920µs 3.920µs 0.24% -0.392 6.819 0.08% 0.000µs 1 200
credit_card/is_card_number/37828224631 throughput 255071185.103op/s 255658528.491op/s ± 216289.390op/s 255678731.581op/s ± 106937.710op/s 255784716.864op/s 255919970.179op/s 255975273.698op/s 256992160.935op/s 0.51% 0.414 6.938 0.08% 15293.969op/s 1 200
credit_card/is_card_number/378282246310005 execution_time 67.948µs 68.614µs ± 0.315µs 68.586µs ± 0.218µs 68.816µs 69.122µs 69.406µs 69.588µs 1.46% 0.521 -0.068 0.46% 0.022µs 1 200
credit_card/is_card_number/378282246310005 throughput 14370290.900op/s 14574634.503op/s ± 66724.489op/s 14580253.973op/s ± 46589.970op/s 14622473.282op/s 14665803.410op/s 14682128.112op/s 14717225.646op/s 0.94% -0.498 -0.106 0.46% 4718.134op/s 1 200
credit_card/is_card_number/37828224631000521389798 execution_time 44.678µs 44.952µs ± 0.112µs 44.950µs ± 0.080µs 45.042µs 45.109µs 45.161µs 45.197µs 0.55% -0.298 -0.441 0.25% 0.008µs 1 200
credit_card/is_card_number/37828224631000521389798 throughput 22125329.375op/s 22246202.405op/s ± 55314.303op/s 22247083.096op/s ± 39676.925op/s 22282370.189op/s 22345306.185op/s 22381372.201op/s 22382243.554op/s 0.61% 0.309 -0.431 0.25% 3911.312op/s 1 200
credit_card/is_card_number/x371413321323331 execution_time 5.690µs 5.698µs ± 0.008µs 5.698µs ± 0.002µs 5.700µs 5.704µs 5.706µs 5.795µs 1.70% 9.411 110.837 0.14% 0.001µs 1 200
credit_card/is_card_number/x371413321323331 throughput 172575993.175op/s 175487825.079op/s ± 239032.341op/s 175505967.203op/s ± 68731.057op/s 175579814.194op/s 175668764.106op/s 175721382.232op/s 175735749.508op/s 0.13% -9.311 109.158 0.14% 16902.139op/s 1 200
credit_card/is_card_number_no_luhn/ execution_time 3.897µs 3.912µs ± 0.003µs 3.911µs ± 0.002µs 3.913µs 3.916µs 3.919µs 3.926µs 0.37% 0.175 6.872 0.07% 0.000µs 1 200
credit_card/is_card_number_no_luhn/ throughput 254712251.331op/s 255640661.777op/s ± 177986.257op/s 255659055.164op/s ± 99984.082op/s 255749438.354op/s 255864777.289op/s 255934540.486op/s 256615678.596op/s 0.37% -0.157 6.885 0.07% 12585.529op/s 1 200
credit_card/is_card_number_no_luhn/ 3782-8224-6310-005 execution_time 59.809µs 61.717µs ± 0.722µs 61.726µs ± 0.553µs 62.281µs 62.779µs 63.150µs 63.663µs 3.14% -0.081 -0.505 1.17% 0.051µs 1 200
credit_card/is_card_number_no_luhn/ 3782-8224-6310-005 throughput 15707667.018op/s 16205127.864op/s ± 189746.708op/s 16200707.210op/s ± 145981.047op/s 16346666.464op/s 16519282.555op/s 16613643.394op/s 16719756.166op/s 3.20% 0.133 -0.507 1.17% 13417.118op/s 1 200
credit_card/is_card_number_no_luhn/ 378282246310005 execution_time 53.410µs 53.838µs ± 0.107µs 53.855µs ± 0.066µs 53.913µs 53.973µs 54.018µs 54.067µs 0.39% -1.091 1.803 0.20% 0.008µs 1 200
credit_card/is_card_number_no_luhn/ 378282246310005 throughput 18495437.891op/s 18574167.167op/s ± 37055.045op/s 18568249.227op/s ± 22640.283op/s 18593793.856op/s 18655610.701op/s 18689666.092op/s 18723217.494op/s 0.83% 1.107 1.853 0.20% 2620.187op/s 1 200
credit_card/is_card_number_no_luhn/37828224631 execution_time 3.892µs 3.911µs ± 0.003µs 3.911µs ± 0.002µs 3.913µs 3.916µs 3.917µs 3.928µs 0.43% -0.185 8.158 0.08% 0.000µs 1 200
credit_card/is_card_number_no_luhn/37828224631 throughput 254596882.627op/s 255660621.432op/s ± 210617.761op/s 255681565.359op/s ± 131743.379op/s 255800228.925op/s 255891559.161op/s 255960270.958op/s 256938830.572op/s 0.49% 0.210 8.227 0.08% 14892.925op/s 1 200
credit_card/is_card_number_no_luhn/378282246310005 execution_time 50.141µs 50.486µs ± 0.147µs 50.499µs ± 0.077µs 50.554µs 50.732µs 50.979µs 51.092µs 1.17% 0.624 2.436 0.29% 0.010µs 1 200
credit_card/is_card_number_no_luhn/378282246310005 throughput 19572614.745op/s 19807666.450op/s ± 57498.861op/s 19802316.210op/s ± 30292.615op/s 19838987.710op/s 19908258.956op/s 19940900.784op/s 19943776.590op/s 0.71% -0.589 2.351 0.29% 4065.783op/s 1 200
credit_card/is_card_number_no_luhn/37828224631000521389798 execution_time 44.588µs 44.940µs ± 0.128µs 44.958µs ± 0.095µs 45.038µs 45.111µs 45.150µs 45.211µs 0.56% -0.420 -0.565 0.28% 0.009µs 1 200
credit_card/is_card_number_no_luhn/37828224631000521389798 throughput 22118513.176op/s 22252209.495op/s ± 63210.259op/s 22243139.862op/s ± 47064.974op/s 22304717.450op/s 22361322.575op/s 22406929.387op/s 22427651.464op/s 0.83% 0.431 -0.552 0.28% 4469.640op/s 1 200
credit_card/is_card_number_no_luhn/x371413321323331 execution_time 5.690µs 5.698µs ± 0.004µs 5.698µs ± 0.003µs 5.700µs 5.707µs 5.712µs 5.713µs 0.26% 0.958 0.959 0.08% 0.000µs 1 200
credit_card/is_card_number_no_luhn/x371413321323331 throughput 175051633.254op/s 175499366.905op/s ± 134478.657op/s 175512594.729op/s ± 83647.512op/s 175599719.041op/s 175673371.758op/s 175724084.049op/s 175736195.552op/s 0.13% -0.953 0.947 0.08% 9509.077op/s 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
credit_card/is_card_number/ execution_time [3.911µs; 3.912µs] or [-0.009%; +0.009%] None None None
credit_card/is_card_number/ throughput [255648276.414op/s; 255694861.399op/s] or [-0.009%; +0.009%] None None None
credit_card/is_card_number/ 3782-8224-6310-005 execution_time [78.298µs; 78.455µs] or [-0.100%; +0.100%] None None None
credit_card/is_card_number/ 3782-8224-6310-005 throughput [12746884.111op/s; 12772282.219op/s] or [-0.100%; +0.100%] None None None
credit_card/is_card_number/ 378282246310005 execution_time [71.665µs; 71.821µs] or [-0.109%; +0.109%] None None None
credit_card/is_card_number/ 378282246310005 throughput [13924459.426op/s; 13954449.335op/s] or [-0.108%; +0.108%] None None None
credit_card/is_card_number/37828224631 execution_time [3.911µs; 3.912µs] or [-0.012%; +0.012%] None None None
credit_card/is_card_number/37828224631 throughput [255628552.861op/s; 255688504.120op/s] or [-0.012%; +0.012%] None None None
credit_card/is_card_number/378282246310005 execution_time [68.570µs; 68.657µs] or [-0.064%; +0.064%] None None None
credit_card/is_card_number/378282246310005 throughput [14565387.131op/s; 14583881.876op/s] or [-0.063%; +0.063%] None None None
credit_card/is_card_number/37828224631000521389798 execution_time [44.936µs; 44.967µs] or [-0.034%; +0.034%] None None None
credit_card/is_card_number/37828224631000521389798 throughput [22238536.375op/s; 22253868.436op/s] or [-0.034%; +0.034%] None None None
credit_card/is_card_number/x371413321323331 execution_time [5.697µs; 5.700µs] or [-0.019%; +0.019%] None None None
credit_card/is_card_number/x371413321323331 throughput [175454697.496op/s; 175520952.663op/s] or [-0.019%; +0.019%] None None None
credit_card/is_card_number_no_luhn/ execution_time [3.911µs; 3.912µs] or [-0.010%; +0.010%] None None None
credit_card/is_card_number_no_luhn/ throughput [255615994.594op/s; 255665328.960op/s] or [-0.010%; +0.010%] None None None
credit_card/is_card_number_no_luhn/ 3782-8224-6310-005 execution_time [61.617µs; 61.817µs] or [-0.162%; +0.162%] None None None
credit_card/is_card_number_no_luhn/ 3782-8224-6310-005 throughput [16178830.795op/s; 16231424.933op/s] or [-0.162%; +0.162%] None None None
credit_card/is_card_number_no_luhn/ 378282246310005 execution_time [53.824µs; 53.853µs] or [-0.028%; +0.028%] None None None
credit_card/is_card_number_no_luhn/ 378282246310005 throughput [18569031.694op/s; 18579302.640op/s] or [-0.028%; +0.028%] None None None
credit_card/is_card_number_no_luhn/37828224631 execution_time [3.911µs; 3.912µs] or [-0.011%; +0.011%] None None None
credit_card/is_card_number_no_luhn/37828224631 throughput [255631431.836op/s; 255689811.028op/s] or [-0.011%; +0.011%] None None None
credit_card/is_card_number_no_luhn/378282246310005 execution_time [50.466µs; 50.506µs] or [-0.040%; +0.040%] None None None
credit_card/is_card_number_no_luhn/378282246310005 throughput [19799697.661op/s; 19815635.239op/s] or [-0.040%; +0.040%] None None None
credit_card/is_card_number_no_luhn/37828224631000521389798 execution_time [44.922µs; 44.957µs] or [-0.039%; +0.039%] None None None
credit_card/is_card_number_no_luhn/37828224631000521389798 throughput [22243449.161op/s; 22260969.829op/s] or [-0.039%; +0.039%] None None None
credit_card/is_card_number_no_luhn/x371413321323331 execution_time [5.697µs; 5.699µs] or [-0.011%; +0.011%] None None None
credit_card/is_card_number_no_luhn/x371413321323331 throughput [175480729.457op/s; 175518004.354op/s] or [-0.011%; +0.011%] None None None

Group 9

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
redis/obfuscate_redis_string execution_time 34.809µs 35.274µs ± 0.643µs 35.011µs ± 0.090µs 35.104µs 36.549µs 36.593µs 38.925µs 11.18% 2.118 4.840 1.82% 0.045µs 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
redis/obfuscate_redis_string execution_time [35.185µs; 35.363µs] or [-0.253%; +0.253%] None None None

Group 10

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
receiver_entry_point/report/2597 execution_time 9.648ms 9.922ms ± 0.073ms 9.926ms ± 0.034ms 9.959ms 10.028ms 10.076ms 10.182ms 2.58% -0.647 2.630 0.73% 0.005ms 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
receiver_entry_point/report/2597 execution_time [9.912ms; 9.932ms] or [-0.101%; +0.101%] None None None

Group 11

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
benching serializing traces from their internal representation to msgpack execution_time 13.793ms 13.840ms ± 0.025ms 13.839ms ± 0.012ms 13.849ms 13.870ms 13.941ms 14.004ms 1.19% 2.647 11.971 0.18% 0.002ms 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
benching serializing traces from their internal representation to msgpack execution_time [13.837ms; 13.844ms] or [-0.025%; +0.025%] None None None

Group 12

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
benching string interning on wordpress profile execution_time 161.198µs 162.188µs ± 0.331µs 162.143µs ± 0.140µs 162.298µs 162.884µs 163.292µs 163.466µs 0.82% 1.019 2.208 0.20% 0.023µs 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
benching string interning on wordpress profile execution_time [162.143µs; 162.234µs] or [-0.028%; +0.028%] None None None

Group 13

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
sql/obfuscate_sql_string execution_time 88.591µs 88.827µs ± 0.187µs 88.805µs ± 0.064µs 88.871µs 88.996µs 89.238µs 91.024µs 2.50% 8.258 92.934 0.21% 0.013µs 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
sql/obfuscate_sql_string execution_time [88.801µs; 88.853µs] or [-0.029%; +0.029%] None None None

Group 14

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
normalization/normalize_trace/test_trace execution_time 241.946ns 255.138ns ± 14.302ns 247.675ns ± 4.602ns 260.742ns 287.350ns 289.156ns 289.300ns 16.81% 1.107 -0.126 5.59% 1.011ns 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
normalization/normalize_trace/test_trace execution_time [253.156ns; 257.120ns] or [-0.777%; +0.777%] None None None

Group 15

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
sdk_test_data/rules-based execution_time 149.101µs 151.138µs ± 1.839µs 150.759µs ± 0.530µs 151.384µs 152.898µs 157.881µs 169.696µs 12.56% 6.118 53.629 1.21% 0.130µs 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
sdk_test_data/rules-based execution_time [150.884µs; 151.393µs] or [-0.169%; +0.169%] None None None

Group 16

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
ip_address/quantize_peer_ip_address_benchmark execution_time 4.975µs 5.059µs ± 0.048µs 5.078µs ± 0.032µs 5.087µs 5.137µs 5.142µs 5.144µs 1.31% -0.057 -1.192 0.94% 0.003µs 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
ip_address/quantize_peer_ip_address_benchmark execution_time [5.052µs; 5.065µs] or [-0.131%; +0.131%] None None None

Group 17

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
single_flag_killswitch/rules-based execution_time 185.648ns 189.349ns ± 3.043ns 188.848ns ± 1.562ns 190.383ns 195.526ns 199.926ns 201.076ns 6.48% 1.640 3.141 1.60% 0.215ns 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
single_flag_killswitch/rules-based execution_time [188.928ns; 189.771ns] or [-0.223%; +0.223%] None None None

Group 18

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
normalization/normalize_name/normalize_name/Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Lo... execution_time 204.282µs 204.872µs ± 0.333µs 204.826µs ± 0.246µs 205.096µs 205.493µs 205.731µs 205.943µs 0.55% 0.651 0.033 0.16% 0.024µs 1 200
normalization/normalize_name/normalize_name/Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Lo... throughput 4855705.493op/s 4881102.832op/s ± 7917.186op/s 4882187.859op/s ± 5865.563op/s 4887268.062op/s 4891800.609op/s 4893968.186op/s 4895198.432op/s 0.27% -0.643 0.017 0.16% 559.830op/s 1 200
normalization/normalize_name/normalize_name/bad-name execution_time 18.568µs 18.656µs ± 0.075µs 18.637µs ± 0.027µs 18.669µs 18.797µs 18.894µs 19.286µs 3.48% 3.797 24.300 0.40% 0.005µs 1 200
normalization/normalize_name/normalize_name/bad-name throughput 51850309.037op/s 53602853.244op/s ± 213585.735op/s 53655630.930op/s ± 77947.007op/s 53722557.818op/s 53795810.752op/s 53843273.056op/s 53855506.589op/s 0.37% -3.658 22.672 0.40% 15102.792op/s 1 200
normalization/normalize_name/normalize_name/good execution_time 10.839µs 10.922µs ± 0.038µs 10.918µs ± 0.028µs 10.949µs 10.988µs 11.010µs 11.051µs 1.22% 0.382 -0.108 0.35% 0.003µs 1 200
normalization/normalize_name/normalize_name/good throughput 90488036.785op/s 91561083.204op/s ± 316934.212op/s 91591866.668op/s ± 232893.027op/s 91799060.388op/s 92023544.721op/s 92122494.450op/s 92258124.037op/s 0.73% -0.364 -0.137 0.35% 22410.633op/s 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
normalization/normalize_name/normalize_name/Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Lo... execution_time [204.826µs; 204.918µs] or [-0.023%; +0.023%] None None None
normalization/normalize_name/normalize_name/Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Lo... throughput [4880005.586op/s; 4882200.077op/s] or [-0.022%; +0.022%] None None None
normalization/normalize_name/normalize_name/bad-name execution_time [18.646µs; 18.666µs] or [-0.056%; +0.056%] None None None
normalization/normalize_name/normalize_name/bad-name throughput [53573252.316op/s; 53632454.173op/s] or [-0.055%; +0.055%] None None None
normalization/normalize_name/normalize_name/good execution_time [10.917µs; 10.927µs] or [-0.048%; +0.048%] None None None
normalization/normalize_name/normalize_name/good throughput [91517159.170op/s; 91605007.237op/s] or [-0.048%; +0.048%] None None None

Group 19

cpu_model git_commit_sha git_commit_date git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz 6d390ee 1767403529 florian/remove-lz4
scenario metric min mean ± sd median ± mad p75 p95 p99 max peak_to_median_ratio skewness kurtosis cv sem runs sample_size
profile_add_sample2_frames_x1000 execution_time 523.427µs 524.730µs ± 0.704µs 524.614µs ± 0.406µs 525.075µs 525.922µs 526.510µs 529.394µs 0.91% 1.882 8.709 0.13% 0.050µs 1 200
scenario metric 95% CI mean Shapiro-Wilk pvalue Ljung-Box pvalue (lag=1) Dip test pvalue
profile_add_sample2_frames_x1000 execution_time [524.632µs; 524.827µs] or [-0.019%; +0.019%] None None None

Baseline

Omitted due to size.

@morrisonlevi morrisonlevi requested a review from a team as a code owner January 3, 2026 01:25
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dd-octo-sts bot commented Jan 3, 2026

Artifact Size Benchmark Report

aarch64-alpine-linux-musl
Artifact Baseline Commit Change
/aarch64-alpine-linux-musl/lib/libdatadog_profiling.a 87.06 MB 87.06 MB +0% (+384 B) 👌
/aarch64-alpine-linux-musl/lib/libdatadog_profiling.so 7.50 MB 7.50 MB 0% (0 B) 👌
aarch64-apple-darwin
Artifact Baseline Commit Change
/aarch64-apple-darwin/lib/libdatadog_profiling.a 58.87 MB 58.86 MB --.01% (-9.89 KB) 💪
/aarch64-apple-darwin/lib/libdatadog_profiling.dylib 8.49 MB 8.49 MB --.01% (-912 B) 💪
aarch64-unknown-linux-gnu
Artifact Baseline Commit Change
/aarch64-unknown-linux-gnu/lib/libdatadog_profiling.so 9.62 MB 9.62 MB 0% (0 B) 👌
/aarch64-unknown-linux-gnu/lib/libdatadog_profiling.a 100.74 MB 100.74 MB +0% (+248 B) 👌
libdatadog-x64-windows
Artifact Baseline Commit Change
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.dll 20.06 MB 20.05 MB --.06% (-13.50 KB) 💪
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.lib 74.31 KB 74.31 KB 0% (0 B) 👌
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.pdb 142.07 MB 141.99 MB --.05% (-80.00 KB) 💪
/libdatadog-x64-windows/debug/static/datadog_profiling_ffi.lib 748.24 MB 747.80 MB --.05% (-457.84 KB) 💪
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.dll 6.41 MB 6.41 MB 0% (0 B) 👌
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.lib 74.31 KB 74.31 KB 0% (0 B) 👌
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.pdb 19.90 MB 19.89 MB --.03% (-8.00 KB) 💪
/libdatadog-x64-windows/release/static/datadog_profiling_ffi.lib 38.99 MB 38.98 MB --.02% (-9.26 KB) 💪
libdatadog-x86-windows
Artifact Baseline Commit Change
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.dll 17.11 MB 17.11 MB 0% (0 B) 👌
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.lib 75.46 KB 75.46 KB 0% (0 B) 👌
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.pdb 144.62 MB 144.70 MB +.05% (+80.00 KB) 🔍
/libdatadog-x86-windows/debug/static/datadog_profiling_ffi.lib 736.90 MB 736.69 MB --.02% (-214.61 KB) 💪
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.dll 4.92 MB 4.92 MB 0% (0 B) 👌
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.lib 75.46 KB 75.46 KB 0% (0 B) 👌
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.pdb 21.17 MB 21.18 MB +.03% (+8.00 KB) 🔍
/libdatadog-x86-windows/release/static/datadog_profiling_ffi.lib 36.77 MB 36.78 MB +.02% (+8.85 KB) 🔍
x86_64-alpine-linux-musl
Artifact Baseline Commit Change
/x86_64-alpine-linux-musl/lib/libdatadog_profiling.a 75.34 MB 75.34 MB +0% (+1.96 KB) 👌
/x86_64-alpine-linux-musl/lib/libdatadog_profiling.so 8.93 MB 8.93 MB 0% (0 B) 👌
x86_64-apple-darwin
Artifact Baseline Commit Change
/x86_64-apple-darwin/lib/libdatadog_profiling.a 60.20 MB 60.20 MB +0% (+1008 B) 👌
/x86_64-apple-darwin/lib/libdatadog_profiling.dylib 9.54 MB 9.54 MB +0% (+8 B) 👌
x86_64-unknown-linux-gnu
Artifact Baseline Commit Change
/x86_64-unknown-linux-gnu/lib/libdatadog_profiling.a 94.90 MB 94.90 MB +0% (+2.72 KB) 👌
/x86_64-unknown-linux-gnu/lib/libdatadog_profiling.so 10.35 MB 10.35 MB 0% (0 B) 👌

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4 participants

@realFlowControl @codecov-commenter @morrisonlevi