feat(heap-profiling): make heap crates publishable by maxywb · Pull Request #2236 · DataDog/libdatadog

maxywb · 2026-07-14T16:38:25Z

Status

Superseded for now by dd-source consuming the allocator from a pinned libdatadog Git revision, with the required dd-source policy exception and Bazel submodule configuration. Keeping this draft open for the Profiling team to decide whether these crates should nevertheless become publishable/released.

Proposed changes

remove publish = false from libdd-profiling-heap-sampler and libdd-profiling-heap-allocator
add the sampler version requirement to the allocator’s path dependency, as required for published libdd-* dependencies

The sampler must publish before the allocator.

Validation

./scripts/check_cargo_metadata.sh libdd-profiling-heap-sampler libdd-profiling-heap-allocator
cargo +nightly-2026-02-08 fmt --all -- --check
cargo check -p libdd-profiling-heap-sampler -p libdd-profiling-heap-allocator
cargo package -p libdd-profiling-heap-sampler --allow-dirty

github-actions · 2026-07-14T16:40:08Z

📚 Documentation Check Results

⚠️ 135 documentation warning(s) found

📦 `libdd-profiling-heap-allocator` - 45 warning(s)

📦 `libdd-profiling-heap-gotter` - 45 warning(s)

📦 `libdd-profiling-heap-sampler` - 45 warning(s)

Updated: 2026-07-15 10:49:50 UTC | Commit: bee55c9 | missing-docs job results

github-actions · 2026-07-14T16:42:04Z

🔒 Cargo Deny Results

⚠️ 1 issue(s) found, showing only errors (advisories, bans, sources)

📦 `libdd-profiling-heap-allocator` - 1 error(s)

Show output

error[vulnerability]: Invalid pointer dereference in `fmt::Pointer` impl for `Atomic` and `Shared` when the underlying pointer is invalid
   ┌─ /home/runner/work/libdatadog/libdatadog/Cargo.lock:21:1
   │
21 │ crossbeam-epoch 0.9.18 registry+https://github.com/rust-lang/crates.io-index
   │ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ security vulnerability detected
   │
   ├ ID: RUSTSEC-2026-0204
   ├ Advisory: https://rustsec.org/advisories/RUSTSEC-2026-0204
   ├ Affected versions of `fmt::Display` dereference the underlying pointer. This causes a invalid pointer dereference e.g., when a pointer created with `Atomic::null` or `Shared::null`. `fmt::Debug` impls and pre-0.9 `fmt::Display` impls, which do not dereference pointers, are not affected by this issue.
   ├ Announcement: https://github.com/crossbeam-rs/crossbeam/pull/1276
   ├ Solution: Upgrade to >=0.9.20 (try `cargo update -p crossbeam-epoch`)
   ├ crossbeam-epoch v0.9.18
     └── crossbeam-deque v0.8.5
         └── rayon-core v1.12.1
             └── rayon v1.10.0
                 └── criterion v0.5.1
                     └── (dev) libdd-profiling-heap-allocator v0.1.0

advisories FAILED, bans ok, sources ok

📦 `libdd-profiling-heap-gotter` - ✅ No issues

📦 `libdd-profiling-heap-sampler` - ✅ No issues

Updated: 2026-07-15 10:51:38 UTC | Commit: bee55c9 | dependency-check job results

datadog-official · 2026-07-14T16:42:18Z

Tests

🎉 All green!

🧪 All tests passed
❄️ No new flaky tests detected

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 74.45% (+0.02%)

_{This comment will be updated automatically if new data arrives.

🔗 Commit SHA: b12ba30 | Docs | Datadog PR Page | Give us feedback!}

pr-commenter · 2026-07-14T16:45:16Z

Benchmarks

Comparison

Benchmark execution time: 2026-07-15 11:02:33

Comparing candidate commit b12ba30 in PR branch max.beckett/publish-heap-profiling-crates with baseline commit a10f667 in branch main.

Found 2 performance improvements and 1 performance regressions! Performance is the same for 37 metrics, 0 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:alloc_free/sampled_system_fast_path/4096

🟩 execution_time [-12.780ns; -12.591ns] or [-10.979%; -10.816%]

scenario:alloc_free/sampled_system_slow_path/4096

🟥 execution_time [+11.477ns; +11.605ns] or [+7.385%; +7.467%]

scenario:alloc_free/system/4096

🟩 execution_time [-13.157ns; -12.996ns] or [-12.387%; -12.235%]

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	`b12ba30`	1784112408	max.beckett/publish-heap-profiling-crates

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
alloc_free/sampled_noop_fast_path/16	execution_time	14.401ns	14.471ns ± 0.016ns	14.470ns ± 0.004ns	14.474ns	14.489ns	14.520ns	14.606ns	0.94%	3.731	31.656	0.11%	0.001ns	1	200
alloc_free/sampled_noop_fast_path/256	execution_time	14.401ns	14.469ns ± 0.012ns	14.469ns ± 0.004ns	14.474ns	14.486ns	14.500ns	14.536ns	0.47%	-0.331	14.061	0.08%	0.001ns	1	200
alloc_free/sampled_noop_fast_path/4096	execution_time	14.405ns	14.478ns ± 0.083ns	14.471ns ± 0.005ns	14.477ns	14.491ns	14.500ns	15.640ns	8.07%	13.659	188.061	0.57%	0.006ns	1	200
alloc_free/sampled_noop_fast_path/64	execution_time	14.401ns	14.472ns ± 0.022ns	14.470ns ± 0.006ns	14.476ns	14.488ns	14.509ns	14.725ns	1.76%	7.963	92.897	0.15%	0.002ns	1	200
alloc_free/sampled_noop_fast_path/65536	execution_time	14.403ns	14.470ns ± 0.011ns	14.470ns ± 0.005ns	14.475ns	14.484ns	14.507ns	14.531ns	0.43%	0.160	11.288	0.08%	0.001ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
alloc_free/sampled_noop_fast_path/16	execution_time	[14.469ns; 14.473ns] or [-0.015%; +0.015%]	None	None	None
alloc_free/sampled_noop_fast_path/256	execution_time	[14.468ns; 14.471ns] or [-0.012%; +0.012%]	None	None	None
alloc_free/sampled_noop_fast_path/4096	execution_time	[14.466ns; 14.490ns] or [-0.080%; +0.080%]	None	None	None
alloc_free/sampled_noop_fast_path/64	execution_time	[14.469ns; 14.475ns] or [-0.021%; +0.021%]	None	None	None
alloc_free/sampled_noop_fast_path/65536	execution_time	[14.468ns; 14.471ns] or [-0.011%; +0.011%]	None	None	None

Group 2

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`b12ba30`	1784112408	max.beckett/publish-heap-profiling-crates

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
alloc_free/sampled_system_slow_path/16	execution_time	89.186ns	89.681ns ± 0.084ns	89.675ns ± 0.033ns	89.712ns	89.814ns	89.904ns	89.999ns	0.36%	-1.063	11.963	0.09%	0.006ns	1	200
alloc_free/sampled_system_slow_path/256	execution_time	89.343ns	89.615ns ± 0.442ns	89.578ns ± 0.029ns	89.605ns	89.698ns	89.918ns	95.688ns	6.82%	13.123	177.334	0.49%	0.031ns	1	200
alloc_free/sampled_system_slow_path/4096	execution_time	166.048ns	166.959ns ± 0.269ns	166.949ns ± 0.132ns	167.090ns	167.337ns	167.583ns	168.313ns	0.82%	0.749	6.276	0.16%	0.019ns	1	200
alloc_free/sampled_system_slow_path/64	execution_time	88.974ns	89.623ns ± 0.095ns	89.613ns ± 0.033ns	89.654ns	89.756ns	89.890ns	90.174ns	0.63%	-0.153	16.520	0.11%	0.007ns	1	200
alloc_free/sampled_system_slow_path/65536	execution_time	154.239ns	155.768ns ± 0.259ns	155.775ns ± 0.114ns	155.887ns	156.144ns	156.413ns	156.910ns	0.73%	-1.054	8.775	0.17%	0.018ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
alloc_free/sampled_system_slow_path/16	execution_time	[89.669ns; 89.693ns] or [-0.013%; +0.013%]	None	None	None
alloc_free/sampled_system_slow_path/256	execution_time	[89.554ns; 89.677ns] or [-0.068%; +0.068%]	None	None	None
alloc_free/sampled_system_slow_path/4096	execution_time	[166.922ns; 166.997ns] or [-0.022%; +0.022%]	None	None	None
alloc_free/sampled_system_slow_path/64	execution_time	[89.610ns; 89.636ns] or [-0.015%; +0.015%]	None	None	None
alloc_free/sampled_system_slow_path/65536	execution_time	[155.732ns; 155.804ns] or [-0.023%; +0.023%]	None	None	None

Group 3

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`b12ba30`	1784112408	max.beckett/publish-heap-profiling-crates

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
alloc_free/sampled_system_fast_path/16	execution_time	25.954ns	26.216ns ± 0.077ns	26.216ns ± 0.040ns	26.256ns	26.328ns	26.518ns	26.584ns	1.40%	0.747	4.400	0.29%	0.005ns	1	200
alloc_free/sampled_system_fast_path/256	execution_time	25.939ns	26.212ns ± 0.065ns	26.212ns ± 0.034ns	26.250ns	26.312ns	26.358ns	26.504ns	1.11%	-0.050	3.650	0.25%	0.005ns	1	200
alloc_free/sampled_system_fast_path/4096	execution_time	100.755ns	103.717ns ± 0.535ns	103.755ns ± 0.228ns	103.970ns	104.315ns	105.232ns	106.330ns	2.48%	-0.705	8.162	0.51%	0.038ns	1	200
alloc_free/sampled_system_fast_path/64	execution_time	26.046ns	26.223ns ± 0.101ns	26.214ns ± 0.035ns	26.250ns	26.330ns	26.442ns	27.013ns	3.05%	4.842	35.842	0.38%	0.007ns	1	200
alloc_free/sampled_system_fast_path/65536	execution_time	97.062ns	100.021ns ± 0.420ns	100.040ns ± 0.181ns	100.193ns	100.572ns	101.512ns	101.856ns	1.82%	-1.033	15.107	0.42%	0.030ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
alloc_free/sampled_system_fast_path/16	execution_time	[26.205ns; 26.226ns] or [-0.041%; +0.041%]	None	None	None
alloc_free/sampled_system_fast_path/256	execution_time	[26.203ns; 26.221ns] or [-0.034%; +0.034%]	None	None	None
alloc_free/sampled_system_fast_path/4096	execution_time	[103.643ns; 103.792ns] or [-0.072%; +0.072%]	None	None	None
alloc_free/sampled_system_fast_path/64	execution_time	[26.209ns; 26.237ns] or [-0.053%; +0.053%]	None	None	None
alloc_free/sampled_system_fast_path/65536	execution_time	[99.963ns; 100.079ns] or [-0.058%; +0.058%]	None	None	None

Group 4

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`b12ba30`	1784112408	max.beckett/publish-heap-profiling-crates

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
alloc_free/system/16	execution_time	14.005ns	14.289ns ± 0.118ns	14.277ns ± 0.043ns	14.330ns	14.434ns	14.559ns	15.188ns	6.38%	3.568	24.671	0.83%	0.008ns	1	200
alloc_free/system/256	execution_time	14.059ns	14.314ns ± 0.091ns	14.305ns ± 0.043ns	14.346ns	14.456ns	14.646ns	14.816ns	3.58%	1.713	6.394	0.64%	0.006ns	1	200
alloc_free/system/4096	execution_time	91.627ns	93.138ns ± 0.453ns	93.124ns ± 0.256ns	93.354ns	93.900ns	94.404ns	94.670ns	1.66%	0.297	1.455	0.49%	0.032ns	1	200
alloc_free/system/64	execution_time	14.002ns	14.312ns ± 0.103ns	14.303ns ± 0.059ns	14.369ns	14.465ns	14.595ns	14.900ns	4.17%	1.070	5.506	0.72%	0.007ns	1	200
alloc_free/system/65536	execution_time	87.213ns	88.408ns ± 0.223ns	88.410ns ± 0.114ns	88.535ns	88.697ns	89.051ns	89.160ns	0.85%	-0.864	6.105	0.25%	0.016ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
alloc_free/system/16	execution_time	[14.272ns; 14.305ns] or [-0.115%; +0.115%]	None	None	None
alloc_free/system/256	execution_time	[14.301ns; 14.326ns] or [-0.089%; +0.089%]	None	None	None
alloc_free/system/4096	execution_time	[93.075ns; 93.201ns] or [-0.067%; +0.067%]	None	None	None
alloc_free/system/64	execution_time	[14.298ns; 14.326ns] or [-0.100%; +0.100%]	None	None	None
alloc_free/system/65536	execution_time	[88.377ns; 88.439ns] or [-0.035%; +0.035%]	None	None	None

Group 5

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`b12ba30`	1784112408	max.beckett/publish-heap-profiling-crates

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
alloc_free/sampled_noop_slow_path/16	execution_time	63.582ns	63.788ns ± 0.102ns	63.782ns ± 0.025ns	63.807ns	63.871ns	63.960ns	64.969ns	1.86%	7.806	88.397	0.16%	0.007ns	1	200
alloc_free/sampled_noop_slow_path/256	execution_time	63.727ns	63.916ns ± 0.056ns	63.916ns ± 0.021ns	63.941ns	63.974ns	64.107ns	64.273ns	0.56%	1.554	10.910	0.09%	0.004ns	1	200
alloc_free/sampled_noop_slow_path/4096	execution_time	64.166ns	64.445ns ± 0.058ns	64.445ns ± 0.025ns	64.470ns	64.521ns	64.649ns	64.736ns	0.45%	0.137	6.670	0.09%	0.004ns	1	200
alloc_free/sampled_noop_slow_path/64	execution_time	63.643ns	64.063ns ± 0.075ns	64.062ns ± 0.020ns	64.082ns	64.138ns	64.215ns	64.755ns	1.08%	2.810	39.587	0.12%	0.005ns	1	200
alloc_free/sampled_noop_slow_path/65536	execution_time	68.120ns	68.642ns ± 0.080ns	68.646ns ± 0.027ns	68.672ns	68.729ns	68.932ns	68.972ns	0.47%	-0.998	11.991	0.12%	0.006ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
alloc_free/sampled_noop_slow_path/16	execution_time	[63.774ns; 63.802ns] or [-0.022%; +0.022%]	None	None	None
alloc_free/sampled_noop_slow_path/256	execution_time	[63.909ns; 63.924ns] or [-0.012%; +0.012%]	None	None	None
alloc_free/sampled_noop_slow_path/4096	execution_time	[64.437ns; 64.453ns] or [-0.012%; +0.012%]	None	None	None
alloc_free/sampled_noop_slow_path/64	execution_time	[64.053ns; 64.073ns] or [-0.016%; +0.016%]	None	None	None
alloc_free/sampled_noop_slow_path/65536	execution_time	[68.631ns; 68.653ns] or [-0.016%; +0.016%]	None	None	None

Group 6

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`b12ba30`	1784112408	max.beckett/publish-heap-profiling-crates

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
alloc_free/noop/16	execution_time	0.400ns	0.402ns ± 0.001ns	0.402ns ± 0.000ns	0.402ns	0.403ns	0.403ns	0.408ns	1.42%	6.328	67.924	0.13%	0.000ns	1	200
alloc_free/noop/256	execution_time	0.400ns	0.402ns ± 0.000ns	0.402ns ± 0.000ns	0.402ns	0.402ns	0.403ns	0.404ns	0.45%	-0.705	10.285	0.09%	0.000ns	1	200
alloc_free/noop/4096	execution_time	0.400ns	0.402ns ± 0.000ns	0.402ns ± 0.000ns	0.402ns	0.402ns	0.403ns	0.404ns	0.58%	0.559	12.998	0.09%	0.000ns	1	200
alloc_free/noop/64	execution_time	0.400ns	0.402ns ± 0.000ns	0.402ns ± 0.000ns	0.402ns	0.403ns	0.404ns	0.405ns	0.83%	2.540	22.353	0.10%	0.000ns	1	200
alloc_free/noop/65536	execution_time	0.400ns	0.402ns ± 0.000ns	0.402ns ± 0.000ns	0.402ns	0.403ns	0.403ns	0.405ns	0.77%	1.504	16.472	0.11%	0.000ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
alloc_free/noop/16	execution_time	[0.402ns; 0.402ns] or [-0.018%; +0.018%]	None	None	None
alloc_free/noop/256	execution_time	[0.402ns; 0.402ns] or [-0.012%; +0.012%]	None	None	None
alloc_free/noop/4096	execution_time	[0.402ns; 0.402ns] or [-0.013%; +0.013%]	None	None	None
alloc_free/noop/64	execution_time	[0.402ns; 0.402ns] or [-0.014%; +0.014%]	None	None	None
alloc_free/noop/65536	execution_time	[0.402ns; 0.402ns] or [-0.015%; +0.015%]	None	None	None

Group 7

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`b12ba30`	1784112408	max.beckett/publish-heap-profiling-crates

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
sampler_only/slow_path/16	execution_time	61.829ns	62.142ns ± 0.070ns	62.136ns ± 0.022ns	62.162ns	62.229ns	62.411ns	62.611ns	0.76%	1.695	15.023	0.11%	0.005ns	1	200
sampler_only/slow_path/256	execution_time	61.945ns	62.287ns ± 0.065ns	62.286ns ± 0.020ns	62.306ns	62.361ns	62.456ns	62.801ns	0.83%	1.363	24.222	0.10%	0.005ns	1	200
sampler_only/slow_path/4096	execution_time	62.220ns	62.485ns ± 0.063ns	62.482ns ± 0.022ns	62.504ns	62.570ns	62.632ns	62.855ns	0.60%	1.171	12.278	0.10%	0.004ns	1	200
sampler_only/slow_path/64	execution_time	61.778ns	62.089ns ± 0.054ns	62.087ns ± 0.019ns	62.109ns	62.159ns	62.258ns	62.288ns	0.32%	-1.170	10.327	0.09%	0.004ns	1	200
sampler_only/slow_path/65536	execution_time	66.434ns	66.674ns ± 0.077ns	66.668ns ± 0.029ns	66.702ns	66.780ns	66.869ns	67.173ns	0.76%	2.250	14.013	0.12%	0.005ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
sampler_only/slow_path/16	execution_time	[62.132ns; 62.152ns] or [-0.016%; +0.016%]	None	None	None
sampler_only/slow_path/256	execution_time	[62.278ns; 62.296ns] or [-0.015%; +0.015%]	None	None	None
sampler_only/slow_path/4096	execution_time	[62.476ns; 62.493ns] or [-0.014%; +0.014%]	None	None	None
sampler_only/slow_path/64	execution_time	[62.081ns; 62.096ns] or [-0.012%; +0.012%]	None	None	None
sampler_only/slow_path/65536	execution_time	[66.663ns; 66.684ns] or [-0.016%; +0.016%]	None	None	None

Group 8

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`b12ba30`	1784112408	max.beckett/publish-heap-profiling-crates

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
sampler_only/fast_path/16	execution_time	14.003ns	14.070ns ± 0.014ns	14.069ns ± 0.005ns	14.075ns	14.088ns	14.122ns	14.162ns	0.66%	0.972	14.523	0.10%	0.001ns	1	200
sampler_only/fast_path/256	execution_time	14.002ns	14.072ns ± 0.020ns	14.069ns ± 0.005ns	14.076ns	14.096ns	14.133ns	14.256ns	1.33%	4.709	40.532	0.14%	0.001ns	1	200
sampler_only/fast_path/4096	execution_time	14.001ns	14.070ns ± 0.013ns	14.069ns ± 0.005ns	14.073ns	14.092ns	14.119ns	14.135ns	0.47%	0.221	10.301	0.09%	0.001ns	1	200
sampler_only/fast_path/64	execution_time	14.001ns	14.070ns ± 0.012ns	14.070ns ± 0.005ns	14.075ns	14.084ns	14.097ns	14.130ns	0.43%	-0.878	11.983	0.08%	0.001ns	1	200
sampler_only/fast_path/65536	execution_time	14.001ns	14.071ns ± 0.015ns	14.070ns ± 0.005ns	14.076ns	14.086ns	14.116ns	14.200ns	0.93%	2.643	31.908	0.11%	0.001ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
sampler_only/fast_path/16	execution_time	[14.068ns; 14.072ns] or [-0.014%; +0.014%]	None	None	None
sampler_only/fast_path/256	execution_time	[14.069ns; 14.075ns] or [-0.019%; +0.019%]	None	None	None
sampler_only/fast_path/4096	execution_time	[14.068ns; 14.072ns] or [-0.013%; +0.013%]	None	None	None
sampler_only/fast_path/64	execution_time	[14.068ns; 14.071ns] or [-0.012%; +0.012%]	None	None	None
sampler_only/fast_path/65536	execution_time	[14.069ns; 14.073ns] or [-0.015%; +0.015%]	None	None	None

Baseline

Baseline benchmark details

Group 1

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`a10f667`	1784074032	main

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
alloc_free/sampled_noop_fast_path/16	execution_time	14.401ns	14.471ns ± 0.012ns	14.470ns ± 0.005ns	14.476ns	14.489ns	14.499ns	14.526ns	0.38%	-0.947	12.921	0.08%	0.001ns	1	200
alloc_free/sampled_noop_fast_path/256	execution_time	14.402ns	14.475ns ± 0.030ns	14.471ns ± 0.005ns	14.477ns	14.490ns	14.537ns	14.845ns	2.58%	9.691	115.367	0.21%	0.002ns	1	200
alloc_free/sampled_noop_fast_path/4096	execution_time	14.403ns	14.473ns ± 0.015ns	14.471ns ± 0.005ns	14.477ns	14.495ns	14.518ns	14.568ns	0.67%	1.285	15.538	0.10%	0.001ns	1	200
alloc_free/sampled_noop_fast_path/64	execution_time	14.401ns	14.474ns ± 0.023ns	14.472ns ± 0.005ns	14.477ns	14.491ns	14.519ns	14.677ns	1.42%	6.434	55.027	0.16%	0.002ns	1	200
alloc_free/sampled_noop_fast_path/65536	execution_time	14.401ns	14.473ns ± 0.015ns	14.472ns ± 0.007ns	14.479ns	14.491ns	14.506ns	14.563ns	0.63%	0.300	11.486	0.10%	0.001ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
alloc_free/sampled_noop_fast_path/16	execution_time	[14.470ns; 14.473ns] or [-0.011%; +0.011%]	None	None	None
alloc_free/sampled_noop_fast_path/256	execution_time	[14.470ns; 14.479ns] or [-0.029%; +0.029%]	None	None	None
alloc_free/sampled_noop_fast_path/4096	execution_time	[14.471ns; 14.475ns] or [-0.014%; +0.014%]	None	None	None
alloc_free/sampled_noop_fast_path/64	execution_time	[14.471ns; 14.477ns] or [-0.022%; +0.022%]	None	None	None
alloc_free/sampled_noop_fast_path/65536	execution_time	[14.471ns; 14.475ns] or [-0.014%; +0.014%]	None	None	None

Group 2

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`a10f667`	1784074032	main

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
alloc_free/sampled_system_slow_path/16	execution_time	89.302ns	89.515ns ± 0.154ns	89.489ns ± 0.039ns	89.535ns	89.642ns	89.978ns	91.277ns	2.00%	7.983	84.898	0.17%	0.011ns	1	200
alloc_free/sampled_system_slow_path/256	execution_time	89.490ns	89.675ns ± 0.114ns	89.657ns ± 0.034ns	89.695ns	89.810ns	90.127ns	90.685ns	1.15%	4.594	32.377	0.13%	0.008ns	1	200
alloc_free/sampled_system_slow_path/4096	execution_time	153.645ns	155.419ns ± 0.375ns	155.434ns ± 0.201ns	155.613ns	155.948ns	156.250ns	157.510ns	1.34%	0.237	6.579	0.24%	0.027ns	1	200
alloc_free/sampled_system_slow_path/64	execution_time	89.855ns	90.310ns ± 0.078ns	90.303ns ± 0.037ns	90.343ns	90.416ns	90.508ns	90.730ns	0.47%	-0.073	9.825	0.09%	0.006ns	1	200
alloc_free/sampled_system_slow_path/65536	execution_time	154.385ns	155.862ns ± 0.291ns	155.834ns ± 0.106ns	155.946ns	156.282ns	156.638ns	157.717ns	1.21%	1.463	14.646	0.19%	0.021ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
alloc_free/sampled_system_slow_path/16	execution_time	[89.493ns; 89.536ns] or [-0.024%; +0.024%]	None	None	None
alloc_free/sampled_system_slow_path/256	execution_time	[89.659ns; 89.691ns] or [-0.018%; +0.018%]	None	None	None
alloc_free/sampled_system_slow_path/4096	execution_time	[155.367ns; 155.471ns] or [-0.033%; +0.033%]	None	None	None
alloc_free/sampled_system_slow_path/64	execution_time	[90.299ns; 90.321ns] or [-0.012%; +0.012%]	None	None	None
alloc_free/sampled_system_slow_path/65536	execution_time	[155.822ns; 155.903ns] or [-0.026%; +0.026%]	None	None	None

Group 3

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`a10f667`	1784074032	main

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
alloc_free/sampled_system_fast_path/16	execution_time	25.988ns	26.224ns ± 0.099ns	26.220ns ± 0.037ns	26.255ns	26.346ns	26.546ns	26.869ns	2.48%	2.549	14.781	0.38%	0.007ns	1	200
alloc_free/sampled_system_fast_path/256	execution_time	25.962ns	26.224ns ± 0.097ns	26.220ns ± 0.031ns	26.249ns	26.319ns	26.441ns	27.265ns	3.99%	6.107	64.026	0.37%	0.007ns	1	200
alloc_free/sampled_system_fast_path/4096	execution_time	115.187ns	116.403ns ± 0.424ns	116.389ns ± 0.204ns	116.608ns	116.965ns	117.723ns	119.284ns	2.49%	1.505	10.810	0.36%	0.030ns	1	200
alloc_free/sampled_system_fast_path/64	execution_time	26.024ns	26.236ns ± 0.071ns	26.231ns ± 0.033ns	26.265ns	26.320ns	26.520ns	26.551ns	1.22%	1.334	5.878	0.27%	0.005ns	1	200
alloc_free/sampled_system_fast_path/65536	execution_time	99.024ns	100.048ns ± 0.266ns	100.057ns ± 0.159ns	100.208ns	100.477ns	100.728ns	101.163ns	1.11%	-0.015	2.507	0.27%	0.019ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
alloc_free/sampled_system_fast_path/16	execution_time	[26.211ns; 26.238ns] or [-0.052%; +0.052%]	None	None	None
alloc_free/sampled_system_fast_path/256	execution_time	[26.211ns; 26.238ns] or [-0.051%; +0.051%]	None	None	None
alloc_free/sampled_system_fast_path/4096	execution_time	[116.344ns; 116.462ns] or [-0.051%; +0.051%]	None	None	None
alloc_free/sampled_system_fast_path/64	execution_time	[26.226ns; 26.246ns] or [-0.037%; +0.037%]	None	None	None
alloc_free/sampled_system_fast_path/65536	execution_time	[100.011ns; 100.085ns] or [-0.037%; +0.037%]	None	None	None

Group 4

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`a10f667`	1784074032	main

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
alloc_free/system/16	execution_time	14.001ns	14.284ns ± 0.108ns	14.271ns ± 0.056ns	14.334ns	14.450ns	14.536ns	14.916ns	4.52%	1.421	6.756	0.75%	0.008ns	1	200
alloc_free/system/256	execution_time	14.008ns	14.307ns ± 0.098ns	14.296ns ± 0.052ns	14.357ns	14.455ns	14.623ns	14.713ns	2.92%	0.638	2.413	0.68%	0.007ns	1	200
alloc_free/system/4096	execution_time	105.184ns	106.214ns ± 0.365ns	106.187ns ± 0.228ns	106.417ns	106.879ns	107.255ns	107.624ns	1.35%	0.560	1.246	0.34%	0.026ns	1	200
alloc_free/system/64	execution_time	14.062ns	14.286ns ± 0.108ns	14.277ns ± 0.050ns	14.328ns	14.449ns	14.591ns	15.027ns	5.25%	1.961	10.590	0.76%	0.008ns	1	200
alloc_free/system/65536	execution_time	87.835ns	88.390ns ± 0.211ns	88.383ns ± 0.112ns	88.487ns	88.738ns	89.144ns	89.335ns	1.08%	0.920	3.002	0.24%	0.015ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
alloc_free/system/16	execution_time	[14.269ns; 14.299ns] or [-0.104%; +0.104%]	None	None	None
alloc_free/system/256	execution_time	[14.293ns; 14.320ns] or [-0.095%; +0.095%]	None	None	None
alloc_free/system/4096	execution_time	[106.163ns; 106.265ns] or [-0.048%; +0.048%]	None	None	None
alloc_free/system/64	execution_time	[14.271ns; 14.301ns] or [-0.105%; +0.105%]	None	None	None
alloc_free/system/65536	execution_time	[88.361ns; 88.419ns] or [-0.033%; +0.033%]	None	None	None

Group 5

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`a10f667`	1784074032	main

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
alloc_free/sampled_noop_slow_path/16	execution_time	63.698ns	64.063ns ± 0.089ns	64.055ns ± 0.023ns	64.080ns	64.149ns	64.284ns	64.944ns	1.39%	5.049	49.453	0.14%	0.006ns	1	200
alloc_free/sampled_noop_slow_path/256	execution_time	63.532ns	63.903ns ± 0.063ns	63.900ns ± 0.023ns	63.927ns	63.974ns	64.113ns	64.241ns	0.53%	-0.026	13.830	0.10%	0.004ns	1	200
alloc_free/sampled_noop_slow_path/4096	execution_time	63.949ns	64.325ns ± 0.086ns	64.321ns ± 0.028ns	64.348ns	64.393ns	64.503ns	65.184ns	1.34%	4.633	51.306	0.13%	0.006ns	1	200
alloc_free/sampled_noop_slow_path/64	execution_time	63.850ns	64.065ns ± 0.068ns	64.056ns ± 0.024ns	64.085ns	64.165ns	64.281ns	64.610ns	0.86%	3.159	22.135	0.11%	0.005ns	1	200
alloc_free/sampled_noop_slow_path/65536	execution_time	68.281ns	68.492ns ± 0.064ns	68.492ns ± 0.030ns	68.517ns	68.587ns	68.663ns	68.910ns	0.61%	1.359	9.451	0.09%	0.005ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
alloc_free/sampled_noop_slow_path/16	execution_time	[64.051ns; 64.075ns] or [-0.019%; +0.019%]	None	None	None
alloc_free/sampled_noop_slow_path/256	execution_time	[63.895ns; 63.912ns] or [-0.014%; +0.014%]	None	None	None
alloc_free/sampled_noop_slow_path/4096	execution_time	[64.313ns; 64.337ns] or [-0.019%; +0.019%]	None	None	None
alloc_free/sampled_noop_slow_path/64	execution_time	[64.056ns; 64.074ns] or [-0.015%; +0.015%]	None	None	None
alloc_free/sampled_noop_slow_path/65536	execution_time	[68.483ns; 68.501ns] or [-0.013%; +0.013%]	None	None	None

Group 6

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`a10f667`	1784074032	main

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
alloc_free/noop/16	execution_time	0.400ns	0.402ns ± 0.000ns	0.402ns ± 0.000ns	0.402ns	0.402ns	0.403ns	0.405ns	0.64%	1.450	16.438	0.10%	0.000ns	1	200
alloc_free/noop/256	execution_time	0.400ns	0.402ns ± 0.000ns	0.402ns ± 0.000ns	0.402ns	0.402ns	0.403ns	0.403ns	0.38%	-0.628	8.124	0.09%	0.000ns	1	200
alloc_free/noop/4096	execution_time	0.400ns	0.402ns ± 0.000ns	0.402ns ± 0.000ns	0.402ns	0.402ns	0.403ns	0.403ns	0.35%	-0.934	10.064	0.08%	0.000ns	1	200
alloc_free/noop/64	execution_time	0.400ns	0.402ns ± 0.000ns	0.402ns ± 0.000ns	0.402ns	0.402ns	0.403ns	0.404ns	0.63%	0.621	15.134	0.09%	0.000ns	1	200
alloc_free/noop/65536	execution_time	0.400ns	0.402ns ± 0.001ns	0.402ns ± 0.000ns	0.402ns	0.403ns	0.403ns	0.409ns	1.63%	7.084	76.485	0.14%	0.000ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
alloc_free/noop/16	execution_time	[0.402ns; 0.402ns] or [-0.014%; +0.014%]	None	None	None
alloc_free/noop/256	execution_time	[0.402ns; 0.402ns] or [-0.012%; +0.012%]	None	None	None
alloc_free/noop/4096	execution_time	[0.402ns; 0.402ns] or [-0.011%; +0.011%]	None	None	None
alloc_free/noop/64	execution_time	[0.402ns; 0.402ns] or [-0.013%; +0.013%]	None	None	None
alloc_free/noop/65536	execution_time	[0.402ns; 0.402ns] or [-0.020%; +0.020%]	None	None	None

Group 7

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`a10f667`	1784074032	main

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
sampler_only/slow_path/16	execution_time	61.814ns	62.150ns ± 0.074ns	62.145ns ± 0.025ns	62.168ns	62.234ns	62.391ns	62.731ns	0.94%	2.776	22.795	0.12%	0.005ns	1	200
sampler_only/slow_path/256	execution_time	61.830ns	62.113ns ± 0.066ns	62.111ns ± 0.022ns	62.131ns	62.197ns	62.266ns	62.684ns	0.92%	2.784	29.971	0.11%	0.005ns	1	200
sampler_only/slow_path/4096	execution_time	62.194ns	62.488ns ± 0.065ns	62.485ns ± 0.025ns	62.511ns	62.586ns	62.736ns	62.806ns	0.51%	0.424	8.281	0.10%	0.005ns	1	200
sampler_only/slow_path/64	execution_time	61.855ns	62.115ns ± 0.101ns	62.100ns ± 0.018ns	62.120ns	62.195ns	62.322ns	63.368ns	2.04%	9.715	118.045	0.16%	0.007ns	1	200
sampler_only/slow_path/65536	execution_time	66.279ns	66.747ns ± 0.114ns	66.734ns ± 0.031ns	66.765ns	66.882ns	67.008ns	67.907ns	1.76%	5.274	54.108	0.17%	0.008ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
sampler_only/slow_path/16	execution_time	[62.140ns; 62.160ns] or [-0.017%; +0.017%]	None	None	None
sampler_only/slow_path/256	execution_time	[62.104ns; 62.122ns] or [-0.015%; +0.015%]	None	None	None
sampler_only/slow_path/4096	execution_time	[62.479ns; 62.497ns] or [-0.014%; +0.014%]	None	None	None
sampler_only/slow_path/64	execution_time	[62.101ns; 62.129ns] or [-0.022%; +0.022%]	None	None	None
sampler_only/slow_path/65536	execution_time	[66.731ns; 66.762ns] or [-0.024%; +0.024%]	None	None	None

Group 8

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	`a10f667`	1784074032	main

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
sampler_only/fast_path/16	execution_time	13.601ns	13.667ns ± 0.014ns	13.667ns ± 0.004ns	13.671ns	13.682ns	13.710ns	13.780ns	0.83%	1.995	23.877	0.10%	0.001ns	1	200
sampler_only/fast_path/256	execution_time	13.602ns	13.668ns ± 0.022ns	13.666ns ± 0.005ns	13.672ns	13.691ns	13.709ns	13.929ns	1.93%	7.805	90.573	0.16%	0.002ns	1	200
sampler_only/fast_path/4096	execution_time	13.601ns	13.669ns ± 0.013ns	13.669ns ± 0.005ns	13.673ns	13.687ns	13.706ns	13.761ns	0.68%	0.922	16.416	0.10%	0.001ns	1	200
sampler_only/fast_path/64	execution_time	13.604ns	13.669ns ± 0.013ns	13.667ns ± 0.005ns	13.673ns	13.683ns	13.708ns	13.775ns	0.79%	2.698	24.503	0.10%	0.001ns	1	200
sampler_only/fast_path/65536	execution_time	13.601ns	13.668ns ± 0.015ns	13.666ns ± 0.004ns	13.672ns	13.683ns	13.695ns	13.808ns	1.04%	3.720	45.634	0.11%	0.001ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
sampler_only/fast_path/16	execution_time	[13.665ns; 13.669ns] or [-0.015%; +0.015%]	None	None	None
sampler_only/fast_path/256	execution_time	[13.665ns; 13.671ns] or [-0.023%; +0.023%]	None	None	None
sampler_only/fast_path/4096	execution_time	[13.667ns; 13.671ns] or [-0.014%; +0.014%]	None	None	None
sampler_only/fast_path/64	execution_time	[13.667ns; 13.671ns] or [-0.013%; +0.013%]	None	None	None
sampler_only/fast_path/65536	execution_time	[13.666ns; 13.670ns] or [-0.015%; +0.015%]	None	None	None

dd-octo-sts · 2026-07-14T17:17:47Z

Artifact Size Benchmark Report

aarch64-alpine-linux-musl

Artifact	Baseline	Commit	Change
/aarch64-alpine-linux-musl/lib/libdatadog_profiling.a	86.15 MB	86.15 MB	0% (0 B) 👌
/aarch64-alpine-linux-musl/lib/libdatadog_profiling.so	7.88 MB	7.88 MB	0% (0 B) 👌

aarch64-unknown-linux-gnu

Artifact	Baseline	Commit	Change
/aarch64-unknown-linux-gnu/lib/libdatadog_profiling.so	10.62 MB	10.62 MB	0% (0 B) 👌
/aarch64-unknown-linux-gnu/lib/libdatadog_profiling.a	97.40 MB	97.40 MB	0% (0 B) 👌

libdatadog-x64-windows

Artifact	Baseline	Commit	Change
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.dll	25.54 MB	25.54 MB	0% (0 B) 👌
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.lib	88.44 KB	88.44 KB	0% (0 B) 👌
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.pdb	185.33 MB	185.34 MB	+0% (+16.00 KB) 👌
/libdatadog-x64-windows/debug/static/datadog_profiling_ffi.lib	957.25 MB	957.25 MB	0% (0 B) 👌
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.dll	8.35 MB	8.35 MB	0% (0 B) 👌
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.lib	88.44 KB	88.44 KB	0% (0 B) 👌
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.pdb	24.72 MB	24.72 MB	0% (0 B) 👌
/libdatadog-x64-windows/release/static/datadog_profiling_ffi.lib	49.21 MB	49.21 MB	0% (0 B) 👌

libdatadog-x86-windows

Artifact	Baseline	Commit	Change
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.dll	22.19 MB	22.19 MB	0% (0 B) 👌
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.lib	89.82 KB	89.82 KB	0% (0 B) 👌
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.pdb	189.78 MB	189.79 MB	+0% (+8.00 KB) 👌
/libdatadog-x86-windows/debug/static/datadog_profiling_ffi.lib	945.93 MB	945.93 MB	0% (0 B) 👌
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.dll	6.46 MB	6.46 MB	0% (0 B) 👌
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.lib	89.82 KB	89.82 KB	0% (0 B) 👌
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.pdb	26.54 MB	26.54 MB	0% (0 B) 👌
/libdatadog-x86-windows/release/static/datadog_profiling_ffi.lib	46.82 MB	46.82 MB	0% (0 B) 👌

x86_64-alpine-linux-musl

Artifact	Baseline	Commit	Change
/x86_64-alpine-linux-musl/lib/libdatadog_profiling.a	76.96 MB	76.96 MB	0% (0 B) 👌
/x86_64-alpine-linux-musl/lib/libdatadog_profiling.so	8.81 MB	8.81 MB	0% (0 B) 👌

x86_64-unknown-linux-gnu

Artifact	Baseline	Commit	Change
/x86_64-unknown-linux-gnu/lib/libdatadog_profiling.a	92.37 MB	92.37 MB	0% (0 B) 👌
/x86_64-unknown-linux-gnu/lib/libdatadog_profiling.so	10.72 MB	10.72 MB	0% (0 B) 👌

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chatgpt-codex-connector · 2026-07-15T09:52:45Z

@@ -10,7 +10,6 @@ repository = "https://github.com/DataDog/libdatadog/tree/main/libdd-profiling-he
 edition.workspace = true
 rust-version.workspace = true
 license.workspace = true


Include BSD license metadata before publishing sampler

Once publish = false is removed, this crate will upload vendor/usdt.h (it appears in cargo package --list), and libdd-profiling-heap-sampler/vendor/README.md documents that file as BSD-2-Clause. The packaged crate does not include the workspace-level NOTICE/LICENSE, while license.workspace still advertises only Apache-2.0, so publishing this artifact would misstate/omit the BSD notice for the bundled header. Please include the BSD license/notice in the crate or update the package license metadata before publishing.

Useful? React with 👍 / 👎.

This is a fair observation, and is waiting for a change on the license tool we use so that it can actually be actioned. I have asked internally in #opensource to get some direction on this. In the meantime the vendored notice and license and included in the source tree. I will add it to the crate metadata in the meantime.

DataDog/rust-license-tool#270

Added NOTICE to this package following the pattern in the rest of the repo covering this. This should satisfy our licensing requirements.

chore(heap-profiling): make heap crates publishable

89aaee5

maxywb changed the title ~~chore(heap-profiling): make heap crates publishable~~ make heap crates publishable Jul 14, 2026

chore(heap-profiling): make gotter publishable too

44d1631

scottgerring changed the title ~~make heap crates publishable~~ feat(heap-profiling): make heap crates publishable Jul 15, 2026

scottgerring requested a review from r1viollet July 15, 2026 09:41

scottgerring marked this pull request as ready for review July 15, 2026 09:41

scottgerring requested a review from a team as a code owner July 15, 2026 09:41

chatgpt-codex-connector Bot reviewed Jul 15, 2026

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make sure license for vendored USDT bits is included in published crate

b12ba30

scottgerring requested a review from a team as a code owner July 15, 2026 10:47

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📚 Documentation Check Results

📦 libdd-profiling-heap-allocator - 45 warning(s)

📦 libdd-profiling-heap-gotter - 45 warning(s)

📦 libdd-profiling-heap-sampler - 45 warning(s)

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🔒 Cargo Deny Results

📦 libdd-profiling-heap-allocator - 1 error(s)

📦 libdd-profiling-heap-gotter - ✅ No issues

📦 libdd-profiling-heap-sampler - ✅ No issues

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scenario:alloc_free/sampled_system_fast_path/4096

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scenario:alloc_free/system/4096

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maxywb commented Jul 14, 2026 •

edited

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github-actions Bot commented Jul 14, 2026 •

edited

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📦 `libdd-profiling-heap-allocator` - 45 warning(s)

📦 `libdd-profiling-heap-gotter` - 45 warning(s)

📦 `libdd-profiling-heap-sampler` - 45 warning(s)

github-actions Bot commented Jul 14, 2026 •

edited

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📦 `libdd-profiling-heap-allocator` - 1 error(s)

📦 `libdd-profiling-heap-gotter` - ✅ No issues

📦 `libdd-profiling-heap-sampler` - ✅ No issues

datadog-official Bot commented Jul 14, 2026 •

edited by datadog-datadog-prod-us1 Bot

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