fix(obfuscation/http)!: fuzzer fixes [APMSP-2670] by Eldolfin · Pull Request #1684 · DataDog/libdatadog

Eldolfin · 2026-03-06T15:57:11Z

What does this PR do?

Ran a fuzzer to find output difference between this obfuscator and the agent's obfuscator, fixed issues one by one, even the nonsensical edge cases.

Motivation

Reach 100% parity between obfuscation libs.

Additional Notes

Semver check shows breaking changes because the url crates dependencies were implementing their traits but it's not a real breaking change

How to test the change?

Here is the list of input that are fixed in this PR (one per line). These are obviously not correct urls but we need to get the exact same outputs as the agent even in these cases.

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%802
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:
:#\u0001
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A:ჸ
C:#
C:\u0001
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\"!
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\u0001
\u0001C:
\u0010
\u0010ჸ
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ჸ#
ჸ#!
ჸ#%
ჸ#%\u0001
ჸ#'ჸ
ჸ#0
ჸ#\u0010
􅙐%񭯐𵲸󴛏񾰻#󹱐ꦿ𔳕�𭄄!!࡫󃩐ۓ򹏤􂆮͡􏃁􏿯(࡫\u0002󃩐ۓ򹏤􂆮ߤꬃ
ჸ?#
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򑲸򒌯झ񄶰#\u0003\n񛭐򒗙򒗕򒗕򒗕򒗕䕞򚜍𽋿􎽏򇌇\u0006􎼊�򭟥̿筚͡➑\u0002{􍸓��'
򑲸򒌯झ񄶰#\u0003\n񛭐򒗙򒗕򒗕򒗕򒗕䕞򚜍𽋿􎽏򇌇\u0006􎼊�򭟥̿筚͡➑\u0002{􍸓��'
򑲸򒌯झ񄶰#\u0003\n񛭐򒗙򒗕򒗕򒗕򒗕䕞򚜍𽋿􎽏򇌇\u0006􎼊�򭟥̿筚͡➑\u0002{􍸓��'

github-actions · 2026-03-06T16:07:49Z

Clippy Allow Annotation Report

Comparing clippy allow annotations between branches:

Base Branch: origin/main
PR Branch: origin/oscarld/obfuscation-http-parity

Summary by Rule

Rule	Base Branch	PR Branch	Change
unwrap_used	1	0	✅ -1 (-100.0%)
Total	1	0	✅ -1 (-100.0%)

Annotation Counts by File

File	Base Branch	PR Branch	Change
`libdd-trace-obfuscation/src/http.rs`	1	0	✅ -1 (-100.0%)

Annotation Stats by Crate

Crate	Base Branch	PR Branch	Change
`clippy-annotation-reporter`	5	5	No change (0%)
`datadog-ffe-ffi`	1	1	No change (0%)
`datadog-ipc`	28	28	No change (0%)
`datadog-live-debugger`	6	6	No change (0%)
`datadog-live-debugger-ffi`	10	10	No change (0%)
`datadog-profiling-replayer`	4	4	No change (0%)
`datadog-remote-config`	3	3	No change (0%)
`datadog-sidecar`	59	59	No change (0%)
`libdd-common`	10	10	No change (0%)
`libdd-common-ffi`	12	12	No change (0%)
`libdd-data-pipeline`	5	5	No change (0%)
`libdd-ddsketch`	2	2	No change (0%)
`libdd-dogstatsd-client`	1	1	No change (0%)
`libdd-profiling`	13	13	No change (0%)
`libdd-telemetry`	19	19	No change (0%)
`libdd-tinybytes`	4	4	No change (0%)
`libdd-trace-normalization`	2	2	No change (0%)
`libdd-trace-obfuscation`	9	8	✅ -1 (-11.1%)
`libdd-trace-utils`	15	15	No change (0%)
Total	208	207	✅ -1 (-0.5%)

About This Report

This report tracks Clippy allow annotations for specific rules, showing how they've changed in this PR. Decreasing the number of these annotations generally improves code quality.

github-actions · 2026-03-06T16:09:53Z

📚 Documentation Check Results

⚠️ 522 documentation warning(s) found

📦 `libdd-trace-obfuscation` - 522 warning(s)

Updated: 2026-03-12 16:49:32 UTC | Commit: 9024ff9 | missing-docs job results

github-actions · 2026-03-06T16:12:48Z

🔒 Cargo Deny Results

✅ No issues found!

📦 `libdd-trace-obfuscation` - ✅ No issues

Updated: 2026-03-12 16:52:24 UTC | Commit: 9024ff9 | dependency-check job results

pr-commenter · 2026-03-06T16:34:47Z

Benchmarks

Comparison

Benchmark execution time: 2026-03-12 16:54:21

Comparing candidate commit 8db3fd4 in PR branch oscarld/obfuscation-http-parity with baseline commit 8fae837 in branch main.

Found 6 performance improvements and 0 performance regressions! Performance is the same for 52 metrics, 2 unstable metrics.

Explanation

This is an A/B test comparing a candidate commit's performance against that of a baseline commit. Performance changes are noted in the tables below as:

🟩 = significantly better candidate vs. baseline
🟥 = significantly worse candidate vs. baseline

We compute a confidence interval (CI) over the relative difference of means between metrics from the candidate and baseline commits, considering the baseline as the reference.

If the CI is entirely outside the configured SIGNIFICANT_IMPACT_THRESHOLD (or the deprecated UNCONFIDENCE_THRESHOLD), the change is considered significant.

Feel free to reach out to #apm-benchmarking-platform on Slack if you have any questions.

More details about the CI and significant changes

You can imagine this CI as a range of values that is likely to contain the true difference of means between the candidate and baseline commits.

CIs of the difference of means are often centered around 0%, because often changes are not that big:

---------------------------------(------|---^--------)-------------------------------->
                              -0.6%    0%  0.3%     +1.2%
                                 |          |        |
         lower bound of the CI --'          |        |
sample mean (center of the CI) -------------'        |
         upper bound of the CI ----------------------'

As described above, a change is considered significant if the CI is entirely outside the configured SIGNIFICANT_IMPACT_THRESHOLD (or the deprecated UNCONFIDENCE_THRESHOLD).

For instance, for an execution time metric, this confidence interval indicates a significantly worse performance:

----------------------------------------|---------|---(---------^---------)---------->
                                       0%        1%  1.3%      2.2%      3.1%
                                                  |   |         |         |
       significant impact threshold --------------'   |         |         |
                      lower bound of CI --------------'         |         |
       sample mean (center of the CI) --------------------------'         |
                      upper bound of CI ----------------------------------'

scenario:concentrator/add_spans_to_concentrator

🟩 execution_time [-2.326ms; -2.321ms] or [-17.842%; -17.801%]

scenario:credit_card/is_card_number/ 3782-8224-6310-005

🟩 execution_time [-4.323µs; -4.110µs] or [-5.403%; -5.138%]
🟩 throughput [+678369.196op/s; +715197.811op/s] or [+5.427%; +5.722%]

scenario:credit_card/is_card_number_no_luhn/ 3782-8224-6310-005

🟩 execution_time [-2.898µs; -2.720µs] or [-4.410%; -4.140%]
🟩 throughput [+658908.610op/s; +703768.459op/s] or [+4.329%; +4.624%]

scenario:sql/obfuscate_sql_string

🟩 execution_time [-3.692µs; -3.603µs] or [-4.139%; -4.039%]

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	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	204.784µs	205.806µs ± 0.669µs	205.723µs ± 0.523µs	206.276µs	206.922µs	207.558µs	208.344µs	1.27%	0.681	0.289	0.32%	0.047µs	1	200
normalization/normalize_name/normalize_name/Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Lo...	throughput	4799755.498op/s	4858998.578op/s ± 15760.890op/s	4860894.985op/s ± 12374.650op/s	4872557.922op/s	4879265.129op/s	4882408.852op/s	4883188.844op/s	0.46%	-0.663	0.236	0.32%	1114.463op/s	1	200
normalization/normalize_name/normalize_name/bad-name	execution_time	18.577µs	18.713µs ± 0.109µs	18.672µs ± 0.036µs	18.762µs	18.901µs	19.041µs	19.375µs	3.77%	2.123	7.024	0.58%	0.008µs	1	200
normalization/normalize_name/normalize_name/bad-name	throughput	51612451.723op/s	53441229.378op/s ± 307160.078op/s	53556467.131op/s ± 102938.854op/s	53641246.213op/s	53725740.070op/s	53765473.671op/s	53829047.157op/s	0.51%	-2.047	6.423	0.57%	21719.497op/s	1	200
normalization/normalize_name/normalize_name/good	execution_time	10.803µs	10.928µs ± 0.050µs	10.927µs ± 0.034µs	10.960µs	11.014µs	11.076µs	11.087µs	1.47%	0.426	0.342	0.46%	0.004µs	1	200
normalization/normalize_name/normalize_name/good	throughput	90195414.217op/s	91509569.925op/s ± 418242.452op/s	91518984.602op/s ± 282918.822op/s	91807688.123op/s	92125402.228op/s	92358996.403op/s	92563805.432op/s	1.14%	-0.396	0.295	0.46%	29574.207op/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	[205.713µs; 205.899µs] or [-0.045%; +0.045%]	None	None	None
normalization/normalize_name/normalize_name/Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Lo...	throughput	[4856814.271op/s; 4861182.886op/s] or [-0.045%; +0.045%]	None	None	None
normalization/normalize_name/normalize_name/bad-name	execution_time	[18.698µs; 18.728µs] or [-0.081%; +0.081%]	None	None	None
normalization/normalize_name/normalize_name/bad-name	throughput	[53398659.945op/s; 53483798.810op/s] or [-0.080%; +0.080%]	None	None	None
normalization/normalize_name/normalize_name/good	execution_time	[10.921µs; 10.935µs] or [-0.063%; +0.063%]	None	None	None
normalization/normalize_name/normalize_name/good	throughput	[91451605.544op/s; 91567534.307op/s] or [-0.063%; +0.063%]	None	None	None

Group 2

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	48.857ms	49.397ms ± 1.288ms	49.241ms ± 0.182ms	49.424ms	49.666ms	54.308ms	62.453ms	26.83%	8.486	76.176	2.60%	0.091ms	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	[49.219ms; 49.576ms] or [-0.361%; +0.361%]	None	None	None

Group 3

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	493.421µs	494.155µs ± 0.583µs	494.086µs ± 0.273µs	494.370µs	494.770µs	495.320µs	500.311µs	1.26%	6.071	60.613	0.12%	0.041µs	1	200
normalization/normalize_service/normalize_service/A0000000000000000000000000000000000000000000000000...	throughput	1998758.105op/s	2023658.378op/s ± 2368.942op/s	2023937.673op/s ± 1116.824op/s	2024978.504op/s	2026026.631op/s	2026547.972op/s	2026668.480op/s	0.13%	-5.981	59.331	0.12%	167.510op/s	1	200
normalization/normalize_service/normalize_service/Data🐨dog🐶 繋がっ⛰てて	execution_time	369.995µs	370.588µs ± 0.269µs	370.581µs ± 0.166µs	370.742µs	371.049µs	371.293µs	371.750µs	0.32%	0.563	1.076	0.07%	0.019µs	1	200
normalization/normalize_service/normalize_service/Data🐨dog🐶 繋がっ⛰てて	throughput	2689976.994op/s	2698412.921op/s ± 1955.294op/s	2698463.167op/s ± 1207.819op/s	2699701.704op/s	2701570.916op/s	2702119.372op/s	2702741.767op/s	0.16%	-0.557	1.058	0.07%	138.260op/s	1	200
normalization/normalize_service/normalize_service/Test Conversion 0f Weird !@#$%^&**() Characters	execution_time	167.343µs	167.655µs ± 0.166µs	167.640µs ± 0.090µs	167.731µs	167.903µs	168.049µs	168.911µs	0.76%	2.462	15.166	0.10%	0.012µs	1	200
normalization/normalize_service/normalize_service/Test Conversion 0f Weird !@#$%^&**() Characters	throughput	5920279.173op/s	5964646.044op/s ± 5895.078op/s	5965167.998op/s ± 3210.349op/s	5968210.259op/s	5971386.684op/s	5974982.515op/s	5975763.692op/s	0.18%	-2.429	14.853	0.10%	416.845op/s	1	200
normalization/normalize_service/normalize_service/[empty string]	execution_time	37.104µs	37.223µs ± 0.072µs	37.217µs ± 0.027µs	37.245µs	37.298µs	37.328µs	38.046µs	2.23%	7.426	82.499	0.19%	0.005µs	1	200
normalization/normalize_service/normalize_service/[empty string]	throughput	26284069.566op/s	26865492.189op/s ± 51417.906op/s	26869621.877op/s ± 19544.968op/s	26887939.649op/s	26913518.735op/s	26939673.203op/s	26951609.653op/s	0.31%	-7.257	79.974	0.19%	3635.795op/s	1	200
normalization/normalize_service/normalize_service/test_ASCII	execution_time	45.470µs	45.637µs ± 0.098µs	45.628µs ± 0.039µs	45.672µs	45.734µs	45.804µs	46.712µs	2.38%	6.706	72.069	0.21%	0.007µs	1	200
normalization/normalize_service/normalize_service/test_ASCII	throughput	21407760.028op/s	21912065.882op/s ± 46164.925op/s	21916473.883op/s ± 18588.928op/s	21930048.993op/s	21964085.109op/s	21980107.825op/s	21992624.651op/s	0.35%	-6.522	69.433	0.21%	3264.353op/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	[494.074µs; 494.236µs] or [-0.016%; +0.016%]	None	None	None
normalization/normalize_service/normalize_service/A0000000000000000000000000000000000000000000000000...	throughput	[2023330.066op/s; 2023986.691op/s] or [-0.016%; +0.016%]	None	None	None
normalization/normalize_service/normalize_service/Data🐨dog🐶 繋がっ⛰てて	execution_time	[370.551µs; 370.626µs] or [-0.010%; +0.010%]	None	None	None
normalization/normalize_service/normalize_service/Data🐨dog🐶 繋がっ⛰てて	throughput	[2698141.936op/s; 2698683.906op/s] or [-0.010%; +0.010%]	None	None	None
normalization/normalize_service/normalize_service/Test Conversion 0f Weird !@#$%^&**() Characters	execution_time	[167.632µs; 167.678µs] or [-0.014%; +0.014%]	None	None	None
normalization/normalize_service/normalize_service/Test Conversion 0f Weird !@#$%^&**() Characters	throughput	[5963829.043op/s; 5965463.045op/s] or [-0.014%; +0.014%]	None	None	None
normalization/normalize_service/normalize_service/[empty string]	execution_time	[37.213µs; 37.233µs] or [-0.027%; +0.027%]	None	None	None
normalization/normalize_service/normalize_service/[empty string]	throughput	[26858366.162op/s; 26872618.216op/s] or [-0.027%; +0.027%]	None	None	None
normalization/normalize_service/normalize_service/test_ASCII	execution_time	[45.624µs; 45.651µs] or [-0.030%; +0.030%]	None	None	None
normalization/normalize_service/normalize_service/test_ASCII	throughput	[21905667.867op/s; 21918463.897op/s] or [-0.029%; +0.029%]	None	None	None

Group 4

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	4.150ms	4.156ms ± 0.009ms	4.154ms ± 0.001ms	4.155ms	4.161ms	4.188ms	4.247ms	2.25%	6.968	61.261	0.21%	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	[4.154ms; 4.157ms] or [-0.029%; +0.029%]	None	None	None

Group 5

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	721.889µs	723.205µs ± 0.748µs	723.153µs ± 0.350µs	723.518µs	724.120µs	724.852µs	730.331µs	0.99%	4.400	39.576	0.10%	0.053µs	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	[723.101µs; 723.308µs] or [-0.014%; +0.014%]	None	None	None

Group 6

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	1.164µs	3.220µs ± 1.435µs	3.001µs ± 0.030µs	3.030µs	3.660µs	14.114µs	14.721µs	390.59%	7.318	54.774	44.44%	0.101µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
write only interface	execution_time	[3.021µs; 3.419µs] or [-6.175%; +6.175%]	None	None	None

Group 7

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	10.684ms	10.713ms ± 0.014ms	10.710ms ± 0.009ms	10.721ms	10.737ms	10.751ms	10.781ms	0.66%	0.971	1.989	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	[10.711ms; 10.715ms] 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	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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/2598	execution_time	3.583ms	3.624ms ± 0.025ms	3.615ms ± 0.010ms	3.629ms	3.679ms	3.704ms	3.716ms	2.79%	1.486	1.705	0.69%	0.002ms	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
receiver_entry_point/report/2598	execution_time	[3.620ms; 3.627ms] or [-0.096%; +0.096%]	None	None	None

Group 9

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	17.675µs	25.653µs ± 9.815µs	17.925µs ± 0.192µs	34.472µs	43.095µs	47.523µs	62.338µs	247.76%	0.834	-0.351	38.16%	0.694µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
two way interface	execution_time	[24.293µs; 27.013µs] or [-5.302%; +5.302%]	None	None	None

Group 10

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	2.385µs	2.405µs ± 0.012µs	2.401µs ± 0.006µs	2.410µs	2.429µs	2.436µs	2.444µs	1.78%	1.099	0.713	0.48%	0.001µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
tags/replace_trace_tags	execution_time	[2.403µs; 2.406µs] or [-0.067%; +0.067%]	None	None	None

Group 11

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	4.958µs	5.004µs ± 0.036µs	4.984µs ± 0.016µs	5.041µs	5.063µs	5.065µs	5.070µs	1.73%	0.561	-1.331	0.72%	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	[4.999µs; 5.009µs] or [-0.100%; +0.100%]	None	None	None

Group 12

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	243.334ns	253.576ns ± 12.183ns	248.074ns ± 2.677ns	253.859ns	281.623ns	292.915ns	294.840ns	18.85%	1.810	2.353	4.79%	0.861ns	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	[251.887ns; 255.264ns] or [-0.666%; +0.666%]	None	None	None

Group 13

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	164.407µs	165.111µs ± 0.273µs	165.074µs ± 0.165µs	165.280µs	165.569µs	165.775µs	166.335µs	0.76%	0.811	1.598	0.16%	0.019µs	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	[165.073µs; 165.149µs] or [-0.023%; +0.023%]	None	None	None

Group 14

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	3.896µs	3.913µs ± 0.003µs	3.913µs ± 0.002µs	3.915µs	3.917µs	3.918µs	3.922µs	0.24%	-0.962	8.265	0.07%	0.000µs	1	200
credit_card/is_card_number/	throughput	254967271.383op/s	255562094.910op/s ± 167659.686op/s	255579561.926op/s ± 108213.032op/s	255671894.608op/s	255768818.159op/s	255828859.046op/s	256661702.196op/s	0.42%	0.980	8.383	0.07%	11855.330op/s	1	200
credit_card/is_card_number/ 3782-8224-6310-005	execution_time	74.321µs	75.784µs ± 0.762µs	75.726µs ± 0.596µs	76.297µs	77.122µs	77.604µs	78.083µs	3.11%	0.418	-0.220	1.00%	0.054µs	1	200
credit_card/is_card_number/ 3782-8224-6310-005	throughput	12806931.843op/s	13196757.579op/s ± 132183.557op/s	13205418.830op/s ± 104824.242op/s	13309480.141op/s	13396813.659op/s	13432682.572op/s	13455231.662op/s	1.89%	-0.370	-0.286	1.00%	9346.789op/s	1	200
credit_card/is_card_number/ 378282246310005	execution_time	68.466µs	68.647µs ± 0.086µs	68.650µs ± 0.050µs	68.694µs	68.767µs	68.860µs	69.181µs	0.77%	1.173	6.677	0.12%	0.006µs	1	200
credit_card/is_card_number/ 378282246310005	throughput	14454794.363op/s	14567375.564op/s ± 18123.308op/s	14566748.483op/s ± 10647.500op/s	14578069.481op/s	14597200.038op/s	14602430.444op/s	14605845.259op/s	0.27%	-1.146	6.500	0.12%	1281.511op/s	1	200
credit_card/is_card_number/37828224631	execution_time	3.893µs	3.913µs ± 0.003µs	3.913µs ± 0.002µs	3.915µs	3.918µs	3.920µs	3.923µs	0.24%	-1.370	12.576	0.07%	0.000µs	1	200
credit_card/is_card_number/37828224631	throughput	254935739.437op/s	255545040.381op/s ± 182263.718op/s	255555609.992op/s ± 100928.452op/s	255654249.833op/s	255764930.038op/s	255837197.411op/s	256861085.184op/s	0.51%	1.397	12.780	0.07%	12887.991op/s	1	200
credit_card/is_card_number/378282246310005	execution_time	64.642µs	64.859µs ± 0.141µs	64.834µs ± 0.086µs	64.936µs	65.097µs	65.289µs	65.572µs	1.14%	1.304	3.178	0.22%	0.010µs	1	200
credit_card/is_card_number/378282246310005	throughput	15250503.291op/s	15418093.755op/s ± 33539.572op/s	15423961.413op/s ± 20464.908op/s	15441861.403op/s	15461725.207op/s	15467822.336op/s	15469903.303op/s	0.30%	-1.282	3.064	0.22%	2371.606op/s	1	200
credit_card/is_card_number/37828224631000521389798	execution_time	45.377µs	45.694µs ± 0.142µs	45.696µs ± 0.107µs	45.802µs	45.923µs	45.951µs	46.032µs	0.74%	-0.058	-0.721	0.31%	0.010µs	1	200
credit_card/is_card_number/37828224631000521389798	throughput	21724031.004op/s	21885070.952op/s ± 68205.174op/s	21883730.547op/s ± 51081.257op/s	21934740.808op/s	21997216.068op/s	22026788.309op/s	22037769.114op/s	0.70%	0.070	-0.719	0.31%	4822.834op/s	1	200
credit_card/is_card_number/x371413321323331	execution_time	6.431µs	6.439µs ± 0.004µs	6.439µs ± 0.003µs	6.442µs	6.446µs	6.448µs	6.452µs	0.19%	0.122	-0.517	0.07%	0.000µs	1	200
credit_card/is_card_number/x371413321323331	throughput	154993343.963op/s	155298111.869op/s ± 103299.788op/s	155292646.194op/s ± 75243.946op/s	155378973.344op/s	155465655.497op/s	155487072.300op/s	155500780.056op/s	0.13%	-0.119	-0.519	0.07%	7304.398op/s	1	200
credit_card/is_card_number_no_luhn/	execution_time	3.891µs	3.912µs ± 0.003µs	3.912µs ± 0.002µs	3.914µs	3.917µs	3.920µs	3.921µs	0.23%	-1.199	9.840	0.08%	0.000µs	1	200
credit_card/is_card_number_no_luhn/	throughput	255043113.362op/s	255614624.737op/s ± 199174.259op/s	255621254.908op/s ± 117646.579op/s	255737740.347op/s	255878193.332op/s	255927508.642op/s	256980576.752op/s	0.53%	1.223	10.016	0.08%	14083.747op/s	1	200
credit_card/is_card_number_no_luhn/ 3782-8224-6310-005	execution_time	61.193µs	62.896µs ± 0.638µs	62.904µs ± 0.410µs	63.291µs	63.885µs	64.477µs	64.697µs	2.85%	-0.000	0.237	1.01%	0.045µs	1	200
credit_card/is_card_number_no_luhn/ 3782-8224-6310-005	throughput	15456692.777op/s	15900796.119op/s ± 161409.792op/s	15897287.926op/s ± 103605.730op/s	16005853.282op/s	16179489.689op/s	16312593.412op/s	16341698.124op/s	2.80%	0.068	0.237	1.01%	11413.396op/s	1	200
credit_card/is_card_number_no_luhn/ 378282246310005	execution_time	54.009µs	54.283µs ± 0.101µs	54.292µs ± 0.065µs	54.345µs	54.438µs	54.527µs	54.579µs	0.53%	0.097	-0.030	0.19%	0.007µs	1	200
credit_card/is_card_number_no_luhn/ 378282246310005	throughput	18322065.263op/s	18421936.971op/s ± 34349.708op/s	18418966.677op/s ± 21933.181op/s	18447632.745op/s	18476779.925op/s	18491315.020op/s	18515310.310op/s	0.52%	-0.086	-0.037	0.19%	2428.891op/s	1	200
credit_card/is_card_number_no_luhn/37828224631	execution_time	3.895µs	3.914µs ± 0.003µs	3.914µs ± 0.002µs	3.916µs	3.918µs	3.920µs	3.921µs	0.18%	-1.332	9.445	0.07%	0.000µs	1	200
credit_card/is_card_number_no_luhn/37828224631	throughput	255031305.691op/s	255496446.572op/s ± 181652.694op/s	255491607.689op/s ± 118940.436op/s	255615400.831op/s	255722102.217op/s	255793183.026op/s	256738816.368op/s	0.49%	1.353	9.602	0.07%	12844.785op/s	1	200
credit_card/is_card_number_no_luhn/378282246310005	execution_time	50.225µs	50.446µs ± 0.108µs	50.441µs ± 0.063µs	50.503µs	50.624µs	50.811µs	50.991µs	1.09%	1.226	4.086	0.21%	0.008µs	1	200
credit_card/is_card_number_no_luhn/378282246310005	throughput	19611465.179op/s	19823313.863op/s ± 42174.592op/s	19825013.221op/s ± 24660.761op/s	19851051.980op/s	19883572.548op/s	19906440.380op/s	19910413.196op/s	0.43%	-1.197	3.955	0.21%	2982.194op/s	1	200
credit_card/is_card_number_no_luhn/37828224631000521389798	execution_time	45.369µs	45.700µs ± 0.140µs	45.717µs ± 0.099µs	45.800µs	45.920µs	45.947µs	45.970µs	0.55%	-0.289	-0.604	0.31%	0.010µs	1	200
credit_card/is_card_number_no_luhn/37828224631000521389798	throughput	21753535.620op/s	21881831.478op/s ± 67086.405op/s	21873864.014op/s ± 47236.143op/s	21922383.307op/s	21999720.332op/s	22032485.167op/s	22041699.473op/s	0.77%	0.301	-0.595	0.31%	4743.725op/s	1	200
credit_card/is_card_number_no_luhn/x371413321323331	execution_time	6.429µs	6.437µs ± 0.004µs	6.437µs ± 0.002µs	6.439µs	6.444µs	6.448µs	6.452µs	0.24%	0.807	0.985	0.06%	0.000µs	1	200
credit_card/is_card_number_no_luhn/x371413321323331	throughput	154984842.103op/s	155348967.041op/s ± 95292.542op/s	155362425.600op/s ± 57110.636op/s	155416178.827op/s	155482432.899op/s	155515196.793op/s	155556474.257op/s	0.12%	-0.802	0.974	0.06%	6738.200op/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	[3.913µs; 3.913µs] or [-0.009%; +0.009%]	None	None	None
credit_card/is_card_number/	throughput	[255538858.890op/s; 255585330.930op/s] or [-0.009%; +0.009%]	None	None	None
credit_card/is_card_number/ 3782-8224-6310-005	execution_time	[75.678µs; 75.889µs] or [-0.139%; +0.139%]	None	None	None
credit_card/is_card_number/ 3782-8224-6310-005	throughput	[13178438.209op/s; 13215076.948op/s] or [-0.139%; +0.139%]	None	None	None
credit_card/is_card_number/ 378282246310005	execution_time	[68.635µs; 68.659µs] or [-0.017%; +0.017%]	None	None	None
credit_card/is_card_number/ 378282246310005	throughput	[14564863.848op/s; 14569887.281op/s] or [-0.017%; +0.017%]	None	None	None
credit_card/is_card_number/37828224631	execution_time	[3.913µs; 3.914µs] or [-0.010%; +0.010%]	None	None	None
credit_card/is_card_number/37828224631	throughput	[255519780.382op/s; 255570300.379op/s] or [-0.010%; +0.010%]	None	None	None
credit_card/is_card_number/378282246310005	execution_time	[64.840µs; 64.879µs] or [-0.030%; +0.030%]	None	None	None
credit_card/is_card_number/378282246310005	throughput	[15413445.493op/s; 15422742.017op/s] or [-0.030%; +0.030%]	None	None	None
credit_card/is_card_number/37828224631000521389798	execution_time	[45.674µs; 45.713µs] or [-0.043%; +0.043%]	None	None	None
credit_card/is_card_number/37828224631000521389798	throughput	[21875618.371op/s; 21894523.534op/s] or [-0.043%; +0.043%]	None	None	None
credit_card/is_card_number/x371413321323331	execution_time	[6.439µs; 6.440µs] or [-0.009%; +0.009%]	None	None	None
credit_card/is_card_number/x371413321323331	throughput	[155283795.512op/s; 155312428.227op/s] or [-0.009%; +0.009%]	None	None	None
credit_card/is_card_number_no_luhn/	execution_time	[3.912µs; 3.913µs] or [-0.011%; +0.011%]	None	None	None
credit_card/is_card_number_no_luhn/	throughput	[255587021.101op/s; 255642228.374op/s] or [-0.011%; +0.011%]	None	None	None
credit_card/is_card_number_no_luhn/ 3782-8224-6310-005	execution_time	[62.808µs; 62.985µs] or [-0.141%; +0.141%]	None	None	None
credit_card/is_card_number_no_luhn/ 3782-8224-6310-005	throughput	[15878426.274op/s; 15923165.964op/s] or [-0.141%; +0.141%]	None	None	None
credit_card/is_card_number_no_luhn/ 378282246310005	execution_time	[54.269µs; 54.297µs] or [-0.026%; +0.026%]	None	None	None
credit_card/is_card_number_no_luhn/ 378282246310005	throughput	[18417176.432op/s; 18426697.510op/s] or [-0.026%; +0.026%]	None	None	None
credit_card/is_card_number_no_luhn/37828224631	execution_time	[3.914µs; 3.914µs] or [-0.010%; +0.010%]	None	None	None
credit_card/is_card_number_no_luhn/37828224631	throughput	[255471271.256op/s; 255521621.888op/s] or [-0.010%; +0.010%]	None	None	None
credit_card/is_card_number_no_luhn/378282246310005	execution_time	[50.431µs; 50.461µs] or [-0.030%; +0.030%]	None	None	None
credit_card/is_card_number_no_luhn/378282246310005	throughput	[19817468.870op/s; 19829158.855op/s] or [-0.029%; +0.029%]	None	None	None
credit_card/is_card_number_no_luhn/37828224631000521389798	execution_time	[45.681µs; 45.720µs] or [-0.042%; +0.042%]	None	None	None
credit_card/is_card_number_no_luhn/37828224631000521389798	throughput	[21872533.948op/s; 21891129.009op/s] or [-0.042%; +0.042%]	None	None	None
credit_card/is_card_number_no_luhn/x371413321323331	execution_time	[6.437µs; 6.438µs] or [-0.009%; +0.009%]	None	None	None
credit_card/is_card_number_no_luhn/x371413321323331	throughput	[155335760.411op/s; 155362173.670op/s] or [-0.009%; +0.009%]	None	None	None

Group 15

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	33.494µs	33.940µs ± 0.735µs	33.619µs ± 0.052µs	33.702µs	35.370µs	35.401µs	38.378µs	14.16%	2.278	6.180	2.16%	0.052µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
redis/obfuscate_redis_string	execution_time	[33.839µs; 34.042µs] or [-0.300%; +0.300%]	None	None	None

Group 16

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	144.929µs	146.960µs ± 1.841µs	146.625µs ± 0.523µs	147.229µs	148.376µs	153.278µs	165.054µs	12.57%	6.175	51.194	1.25%	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	[146.704µs; 147.215µs] or [-0.174%; +0.174%]	None	None	None

Group 17

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	13.880ms	13.956ms ± 0.039ms	13.951ms ± 0.020ms	13.970ms	14.015ms	14.101ms	14.162ms	1.51%	1.687	5.350	0.28%	0.003ms	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	[13.951ms; 13.962ms] or [-0.038%; +0.038%]	None	None	None

Group 18

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	85.360µs	85.563µs ± 0.215µs	85.539µs ± 0.045µs	85.588µs	85.679µs	85.893µs	88.374µs	3.31%	11.236	143.592	0.25%	0.015µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
sql/obfuscate_sql_string	execution_time	[85.533µs; 85.593µs] or [-0.035%; +0.035%]	None	None	None

Group 19

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`8db3fd4`	1773333420	oscarld/obfuscation-http-parity

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	190.366ns	192.552ns ± 1.998ns	192.371ns ± 1.257ns	193.239ns	196.334ns	199.855ns	200.239ns	4.09%	1.492	2.639	1.04%	0.141ns	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	[192.275ns; 192.829ns] or [-0.144%; +0.144%]	None	None	None

Baseline

Omitted due to size.

dd-octo-sts · 2026-03-06T16:44:35Z

Artifact Size Benchmark Report

aarch64-alpine-linux-musl

Artifact	Baseline	Commit	Change
/aarch64-alpine-linux-musl/lib/libdatadog_profiling.a	100.28 MB	100.28 MB	0% (0 B) 👌
/aarch64-alpine-linux-musl/lib/libdatadog_profiling.so	8.63 MB	8.63 MB	0% (0 B) 👌

aarch64-unknown-linux-gnu

Artifact	Baseline	Commit	Change
/aarch64-unknown-linux-gnu/lib/libdatadog_profiling.so	11.21 MB	11.21 MB	0% (0 B) 👌
/aarch64-unknown-linux-gnu/lib/libdatadog_profiling.a	116.94 MB	116.94 MB	0% (0 B) 👌

libdatadog-x64-windows

Artifact	Baseline	Commit	Change
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.dll	27.16 MB	27.16 MB	0% (0 B) 👌
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.lib	76.26 KB	76.26 KB	0% (0 B) 👌
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.pdb	186.01 MB	186.03 MB	+0% (+16.00 KB) 👌
/libdatadog-x64-windows/debug/static/datadog_profiling_ffi.lib	917.14 MB	917.14 MB	0% (0 B) 👌
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.dll	9.93 MB	9.93 MB	0% (0 B) 👌
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.lib	76.26 KB	76.26 KB	0% (0 B) 👌
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.pdb	24.77 MB	24.77 MB	0% (0 B) 👌
/libdatadog-x64-windows/release/static/datadog_profiling_ffi.lib	51.43 MB	51.43 MB	0% (0 B) 👌

libdatadog-x86-windows

Artifact	Baseline	Commit	Change
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.dll	22.97 MB	22.97 MB	0% (0 B) 👌
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.lib	77.44 KB	77.44 KB	0% (0 B) 👌
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.pdb	190.22 MB	190.19 MB	--.01% (-32.00 KB) 💪
/libdatadog-x86-windows/debug/static/datadog_profiling_ffi.lib	900.80 MB	900.80 MB	0% (0 B) 👌
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.dll	7.53 MB	7.53 MB	0% (0 B) 👌
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.lib	77.44 KB	77.44 KB	0% (0 B) 👌
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.pdb	26.51 MB	26.51 MB	0% (0 B) 👌
/libdatadog-x86-windows/release/static/datadog_profiling_ffi.lib	47.05 MB	47.05 MB	0% (0 B) 👌

x86_64-alpine-linux-musl

Artifact	Baseline	Commit	Change
/x86_64-alpine-linux-musl/lib/libdatadog_profiling.a	87.50 MB	87.50 MB	0% (0 B) 👌
/x86_64-alpine-linux-musl/lib/libdatadog_profiling.so	10.21 MB	10.21 MB	0% (0 B) 👌

x86_64-unknown-linux-gnu

Artifact	Baseline	Commit	Change
/x86_64-unknown-linux-gnu/lib/libdatadog_profiling.a	109.81 MB	109.81 MB	0% (0 B) 👌
/x86_64-unknown-linux-gnu/lib/libdatadog_profiling.so	11.95 MB	11.95 MB	0% (0 B) 👌

codecov-commenter · 2026-03-06T16:46:50Z

Codecov Report

❌ Patch coverage is 97.90210% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.42%. Comparing base (c37a7dd) to head (8db3fd4).
⚠️ Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1684      +/-   ##
==========================================
+ Coverage   71.21%   71.42%   +0.20%     
==========================================
  Files         429      429              
  Lines       63504    63901     +397     
==========================================
+ Hits        45225    45641     +416     
+ Misses      18279    18260      -19

Components	Coverage Δ
libdd-crashtracker	`62.42% <ø> (+0.09%)`	⬆️
libdd-crashtracker-ffi	`17.18% <ø> (+0.61%)`	⬆️
libdd-alloc	`98.77% <ø> (ø)`
libdd-data-pipeline	`88.32% <ø> (-0.06%)`	⬇️
libdd-data-pipeline-ffi	`76.94% <ø> (-0.10%)`	⬇️
libdd-common	`79.73% <ø> (ø)`
libdd-common-ffi	`73.40% <ø> (ø)`
libdd-telemetry	`62.48% <ø> (ø)`
libdd-telemetry-ffi	`16.75% <ø> (ø)`
libdd-dogstatsd-client	`82.64% <ø> (ø)`
datadog-ipc	`80.35% <ø> (ø)`
libdd-profiling	`81.59% <ø> (ø)`
libdd-profiling-ffi	`63.65% <ø> (ø)`
datadog-sidecar	`32.61% <ø> (+0.12%)`	⬆️
datdog-sidecar-ffi	`8.35% <ø> (+0.53%)`	⬆️
spawn-worker	`54.69% <ø> (ø)`
libdd-tinybytes	`93.16% <ø> (ø)`
libdd-trace-normalization	`81.71% <ø> (ø)`
libdd-trace-obfuscation	`92.22% <97.90%> (+0.47%)`	⬆️
libdd-trace-protobuf	`68.25% <ø> (ø)`
libdd-trace-utils	`89.08% <ø> (ø)`
datadog-tracer-flare	`88.95% <ø> (-1.50%)`	⬇️
libdd-log	`74.69% <ø> (ø)`

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Eldolfin · 2026-03-09T15:06:48Z

For the kind of tests this fixes, it's not worth it given how much complexity it adds to a very simple function

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libdd-trace-obfuscation/src/http.rs

Go's url.Parse rejects bare '%' and other invalid percent-encoding sequences, returning an error which causes obfuscateURLString to return "?". The url crate silently re-encodes them as '%25', so add an explicit pre-check matching Go's behavior. Fixes fuzzing testcase: http_fuzzing_594901251

Go's url.Parse stores "." and ".." path segments literally, while the url crate's join() resolves them via RFC 3986 normalization (making them empty after stripping the base). Return the original input when go_like_reference returns empty for a non-empty input that already passed all error checks (control chars, invalid percent-encoding). Fixes fuzzing testcase: http_fuzzing_3638045804

Go's url.Parse succeeds for relative URLs (like "0") and applies path-digit removal to them. The Rust code was returning early from the go_like_reference path without applying digit removal. Add remove_relative_path_digits() helper and call it for relative URL results when remove_path_digits=true. Fixes fuzzing testcase: http_fuzzing_1928485962

…URLs Go's url.shouldEscape for encodePath does not allow !, ', (, ), * even though RFC 3986 considers them valid sub-delimiters in path segments. The url crate follows RFC 3986 and keeps them unencoded. Post-process go_like_reference output to encode these characters to match Go's behavior. Fixes fuzzing testcase: http_fuzzing_4273565798

…ue URIs - Opaque URIs ending with bare '#' (e.g. "C:#") now strip the empty fragment to match Go's url.URL.String() which omits it - When a URL has control chars in the fragment, also check the path for invalid percent-encoding before pre-encoding — previously this branch returned early and skipped the path validity check, causing inputs like "ჸ#%\u{1}" to return a percent-encoded result instead of "?"

…uote Go's url.EscapedPath() calls escape() on the whole path whenever validEncoded() returns false. validEncoded() returns false for any char not in its explicit allowlist — including '\"' (double-quote). When escape() is called, it also encodes Category 2 chars (!, ', (, ), *). Add '\"' to the has_cat1 trigger check so that inputs containing '\"' in the path also get Category 2 encoding, matching Go's behavior.

Go's url.unescape validates that percent-encoded bytes in path/fragment form valid UTF-8 sequences. The Rust implementation only checked for syntactically invalid percent-encoding (wrong hex digits count), missing cases like %80 (a lone UTF-8 continuation byte) which Go rejects. Fix: collect consecutive percent-encoded bytes and validate with from_utf8.

Two bugs fixed: 1. go_like_reference() dropped the fragment when stripping the query. Fix: after finding path_end (at '?'), extract the '#...' fragment and include it in the returned string. 2. obfuscate_url_string() returned '?' for '?#frag' inputs with remove_query_string=true, discarding the fragment entirely. Fix: when after_q starts with '#' (empty query + fragment), fall through to go_like_reference which encodes and preserves it.

When remove_query_string=true and the URL has both a query and a fragment (e.g. "?ჸ#ჸ"), the previous fix only handled "?#frag" (empty query). Extend the fix to any URL starting with '?' that contains a '#' fragment. Fall through to go_like_reference which strips the query and preserves the fragment with correct percent-encoding.

Go's url.URL.String() omits an empty trailing fragment (bare '#'). For query-only URL references like '?query#', the previous code returned the original string including the bare '#', while Go returns '?query'.

For URLs starting with '?' that have a fragment (e.g. '?#ჸ'), Go's url.URL.String() percent-encodes non-ASCII chars in the fragment via EscapeFragment. Also, Go omits an empty trailing fragment ('?#' → '?'). Handle these cases early before the 'restore original query' pass which would otherwise undo the encoding.

The restore-original-query pass was splicing &url[q_start..] which includes any trailing '#' (empty fragment), overriding the empty-fragment stripping done by go_like_reference. Now only restores up to '#', and appends the (already-encoded/stripped) fragment from go_like_reference.

Go's url.Parse decodes %XX sequences where the decoded byte is an unreserved char (A-Z, a-z, 0-9, -, ., _, ~) as part of path normalization. E.g. %30 → 0, %41 → A. The url crate preserves them as-is. Add normalize_pct_encoded_unreserved() and apply it in go_like_reference on the path portion of all returned values.

Go's url.Parse first splits on '#', then parses the pre-fragment portion. If that portion starts with ':' (empty scheme), getScheme returns "missing protocol scheme" and ObfuscateURLString returns '?'. The Rust code had a check for ':' in the first path segment, but it was placed after the CTL-in-fragment pre-encode block which returned early, so inputs like ":#<ctrl>" bypassed the check. Move the colon check to before the CTL-in-fragment block so it fires regardless of what the fragment contains. Fixes parity for input ":#\u{1}" (http_fuzzing_4114246193).

Eldolfin · 2026-03-12T15:46:07Z

@codex review

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libdd-trace-obfuscation/src/http.rs

chatgpt-codex-connector · 2026-03-12T15:59:53Z

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github-actions bot added the mini-agent label Mar 6, 2026

Eldolfin requested a review from Copilot March 6, 2026 16:05

Eldolfin force-pushed the oscarld/obfuscation-http-parity branch from 694c677 to 43100ec Compare March 6, 2026 16:10

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Copilot started reviewing on behalf of Eldolfin March 6, 2026 16:16 View session

Eldolfin changed the title ~~Oscarld/obfuscation http parity~~ fix: obfuscation http parity Mar 9, 2026

Eldolfin changed the title ~~fix: obfuscation http parity~~ fix: obfuscation http parity [APMSP-2670] Mar 9, 2026

Eldolfin closed this Mar 9, 2026

Eldolfin reopened this Mar 9, 2026

Eldolfin marked this pull request as ready for review March 9, 2026 17:20

Eldolfin requested review from a team as code owners March 9, 2026 17:20

Eldolfin changed the title ~~fix: obfuscation http parity [APMSP-2670]~~ fix(obfuscation/http): fuzzer fixes [APMSP-2670] Mar 9, 2026

Eldolfin requested a review from Copilot March 10, 2026 10:44

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libdd-trace-obfuscation/src/http.rs Outdated Show resolved Hide resolved

libdd-trace-obfuscation/src/http.rs Outdated Show resolved Hide resolved

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Eldolfin added 7 commits March 10, 2026 18:40

UGLY(http): fix relative url obfuscation

368bac5

fix(http): fuzzing edge cases

405bf86

fix(http): fuzzing edge cases

fcae8ab

Eldolfin added 19 commits March 10, 2026 18:40

fix(http): strip empty trailing fragment for query-only URLs

b7e873b

Go's url.URL.String() omits an empty trailing fragment (bare '#'). For query-only URL references like '?query#', the previous code returned the original string including the bare '#', while Go returns '?query'.

fix(http): HTTP non-ASCII path check

e7180a7

fix(http): clippy warnings

c5f4ceb

fix(http): cargo fmt

42a31e5

fix(http): simplify a lot

b27a2fc

fix(http): clippy

a22d54a

fix: update LICENSE-3rdparty.yml

0362c87

fix(http): clippy

18088a7

fix(http): dash decode

3e32c31

fix: use older cargo bundle license to match ci

4d1aa68

Eldolfin force-pushed the oscarld/obfuscation-http-parity branch from 1ca887f to 4d1aa68 Compare March 10, 2026 17:40

Eldolfin changed the title ~~fix(obfuscation/http): fuzzer fixes [APMSP-2670]~~ fix!(obfuscation/http): fuzzer fixes [APMSP-2670] Mar 11, 2026

fix(http): remove unused url crate

54e297c

Eldolfin changed the title ~~fix!(obfuscation/http): fuzzer fixes [APMSP-2670]~~ fix(obfuscation/http)!: fuzzer fixes [APMSP-2670] Mar 11, 2026

Eldolfin requested a review from Copilot March 12, 2026 15:45

fix(http): write! instead of push_str(format), fixme comment

e498168

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fix(http): rename/document confusing cat1/cat2 functions

8db3fd4

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Clippy Allow Annotation Report

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📚 Documentation Check Results

📦 libdd-trace-obfuscation - 522 warning(s)

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🔒 Cargo Deny Results

📦 libdd-trace-obfuscation - ✅ No issues

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Benchmarks

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More details about the CI and significant changes

scenario:concentrator/add_spans_to_concentrator

scenario:credit_card/is_card_number/ 3782-8224-6310-005

scenario:credit_card/is_card_number_no_luhn/ 3782-8224-6310-005

scenario:sql/obfuscate_sql_string

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Artifact Size Benchmark Report

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📦 `libdd-trace-obfuscation` - 522 warning(s)

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📦 `libdd-trace-obfuscation` - ✅ No issues

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