feat(dogstatsd)!: add shared_runtime buffered sink by VianneyRuhlmann · Pull Request #2224 · DataDog/libdatadog

VianneyRuhlmann · 2026-07-10T12:37:11Z

What does this PR do?

Provide a SharedRuntime based buffered sink. The current QueuingMetricSink spawns a thread which isn't forksafe. This provides an alternative that can be used in forking context.

Motivation

Currently the dogstatsd client doesn't survive a fork and all metrics submitted after the fork are never sent.

Additional Notes

Anything else we should know when reviewing?

How to test the change?

Describe here in detail how the change can be validated.

VianneyRuhlmann · 2026-07-10T12:37:25Z

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

feat(dogstatsd)!: add shared_runtime buffered sink #2224 👈 (View in Graphite)
refactor(statsd)!: make client clonable #2222
main

This stack of pull requests is managed by Graphite. Learn more about stacking.

github-actions · 2026-07-10T12:39:11Z

📚 Documentation Check Results

⚠️ 1347 documentation warning(s) found

📦 `libdd-data-pipeline` - 1178 warning(s)

📦 `libdd-dogstatsd-client` - 169 warning(s)

Updated: 2026-07-10 15:08:32 UTC | Commit: 7bf281b | missing-docs job results

github-actions · 2026-07-10T12:40:31Z

Clippy Allow Annotation Report

Comparing clippy allow annotations between branches:

Base Branch: origin/vianney/statsd-client-refactor
PR Branch: origin/07-10-feat_dogstatsd_add_shared_runtime_buffered_sink

Summary by Rule

Rule	Base Branch	PR Branch	Change
unwrap_used	3	3	No change (0%)
Total	3	3	No change (0%)

Annotation Counts by File

File	Base Branch	PR Branch	Change
`libdd-data-pipeline/src/trace_exporter/mod.rs`	2	2	No change (0%)
`libdd-dogstatsd-client/src/client/mod.rs`	1	1	No change (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`	22	22	No change (0%)
`datadog-live-debugger`	4	4	No change (0%)
`datadog-live-debugger-ffi`	10	10	No change (0%)
`datadog-profiling-replayer`	4	4	No change (0%)
`datadog-sidecar`	45	45	No change (0%)
`libdd-common`	13	13	No change (0%)
`libdd-common-ffi`	12	12	No change (0%)
`libdd-data-pipeline`	6	6	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-remote-config`	3	3	No change (0%)
`libdd-telemetry`	20	20	No change (0%)
`libdd-tinybytes`	4	4	No change (0%)
`libdd-trace-normalization`	2	2	No change (0%)
`libdd-trace-obfuscation`	3	3	No change (0%)
`libdd-trace-stats`	1	1	No change (0%)
`libdd-trace-utils`	11	11	No change (0%)
Total	182	182	No change (0%)

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 · 2026-07-10T12:41:06Z

🔒 Cargo Deny Results

⚠️ 4 issue(s) found, showing only errors (advisories, bans, sources)

📦 `libdd-data-pipeline` - 3 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:75:1
   │
75 │ 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
                     ├── libdd-common v5.1.0
                     │   ├── libdd-capabilities-impl v3.0.0
                     │   │   ├── libdd-data-pipeline v7.0.0
                     │   │   ├── libdd-shared-runtime v2.0.0
                     │   │   │   ├── libdd-data-pipeline v7.0.0 (*)
                     │   │   │   ├── libdd-dogstatsd-client v4.0.0
                     │   │   │   │   ├── libdd-data-pipeline v7.0.0 (*)
                     │   │   │   │   └── libdd-trace-stats v6.0.0
                     │   │   │   │       └── libdd-data-pipeline v7.0.0 (*)
                     │   │   │   ├── libdd-telemetry v6.0.0
                     │   │   │   │   ├── libdd-data-pipeline v7.0.0 (*)
                     │   │   │   │   └── libdd-trace-stats v6.0.0 (*)
                     │   │   │   └── libdd-trace-stats v6.0.0 (*)
                     │   │   ├── libdd-trace-stats v6.0.0 (*)
                     │   │   └── libdd-trace-utils v9.0.0
                     │   │       ├── libdd-data-pipeline v7.0.0 (*)
                     │   │       ├── libdd-trace-obfuscation v5.0.0
                     │   │       │   └── libdd-trace-stats v6.0.0 (*)
                     │   │       ├── libdd-trace-stats v6.0.0 (*)
                     │   │       └── (dev) libdd-trace-utils v9.0.0 (*)
                     │   ├── libdd-data-pipeline v7.0.0 (*)
                     │   ├── libdd-dogstatsd-client v4.0.0 (*)
                     │   ├── libdd-shared-runtime v2.0.0 (*)
                     │   ├── libdd-telemetry v6.0.0 (*)
                     │   ├── libdd-trace-obfuscation v5.0.0 (*)
                     │   ├── libdd-trace-stats v6.0.0 (*)
                     │   └── libdd-trace-utils v9.0.0 (*)
                     ├── (dev) libdd-data-pipeline v7.0.0 (*)
                     ├── (dev) libdd-ddsketch v1.1.0
                     │   ├── libdd-data-pipeline v7.0.0 (*)
                     │   ├── libdd-telemetry v6.0.0 (*)
                     │   └── libdd-trace-stats v6.0.0 (*)
                     ├── (dev) libdd-trace-normalization v3.0.0
                     │   ├── libdd-data-pipeline v7.0.0 (*)
                     │   └── libdd-trace-utils v9.0.0 (*)
                     ├── (dev) libdd-trace-obfuscation v5.0.0 (*)
                     ├── (dev) libdd-trace-stats v6.0.0 (*)
                     └── (dev) libdd-trace-utils v9.0.0 (*)

error[unsound]: Rand is unsound with a custom logger using `rand::rng()`
    ┌─ /home/runner/work/libdatadog/libdatadog/Cargo.lock:218:1
    │
218 │ rand 0.8.5 registry+https://github.com/rust-lang/crates.io-index
    │ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ unsound advisory detected
    │
    ├ ID: RUSTSEC-2026-0097
    ├ Advisory: https://rustsec.org/advisories/RUSTSEC-2026-0097
    ├ It has been reported (by @lopopolo) that the `rand` library is [unsound](https://rust-lang.github.io/unsafe-code-guidelines/glossary.html#soundness-of-code--of-a-library) (i.e. that safe code using the public API can cause Undefined Behaviour) when all the following conditions are met:
      
      - The `log` and `thread_rng` features are enabled
      - A [custom logger](https://docs.rs/log/latest/log/#implementing-a-logger) is defined
      - The custom logger accesses `rand::rng()` (previously `rand::thread_rng()`) and calls any `TryRng` (previously `RngCore`) methods on `ThreadRng`
      - The `ThreadRng` (attempts to) reseed while called from the custom logger (this happens every 64 kB of generated data)
      - Trace-level logging is enabled or warn-level logging is enabled and the random source (the `getrandom` crate) is unable to provide a new seed
      
      `TryRng` (previously `RngCore`) methods for `ThreadRng` use `unsafe` code to cast `*mut BlockRng<ReseedingCore>` to `&mut BlockRng<ReseedingCore>`. When all the above conditions are met this results in an aliased mutable reference, violating the Stacked Borrows rules. Miri is able to detect this violation in sample code. Since construction of [aliased mutable references is Undefined Behaviour](https://doc.rust-lang.org/stable/nomicon/references.html), the behaviour of optimized builds is hard to predict.
    ├ Announcement: https://github.com/rust-random/rand/pull/1763
    ├ Solution: Upgrade to >=0.10.1 OR <0.10.0, >=0.9.3 OR <0.9.0, >=0.8.6 (try `cargo update -p rand`)
    ├ rand v0.8.5
      ├── libdd-common v5.1.0
      │   ├── libdd-capabilities-impl v3.0.0
      │   │   ├── libdd-data-pipeline v7.0.0
      │   │   ├── libdd-shared-runtime v2.0.0
      │   │   │   ├── libdd-data-pipeline v7.0.0 (*)
      │   │   │   ├── libdd-dogstatsd-client v4.0.0
      │   │   │   │   ├── libdd-data-pipeline v7.0.0 (*)
      │   │   │   │   └── libdd-trace-stats v6.0.0
      │   │   │   │       └── libdd-data-pipeline v7.0.0 (*)
      │   │   │   ├── libdd-telemetry v6.0.0
      │   │   │   │   ├── libdd-data-pipeline v7.0.0 (*)
      │   │   │   │   └── libdd-trace-stats v6.0.0 (*)
      │   │   │   └── libdd-trace-stats v6.0.0 (*)
      │   │   ├── libdd-trace-stats v6.0.0 (*)
      │   │   └── libdd-trace-utils v9.0.0
      │   │       ├── libdd-data-pipeline v7.0.0 (*)
      │   │       ├── libdd-trace-obfuscation v5.0.0
      │   │       │   └── libdd-trace-stats v6.0.0 (*)
      │   │       ├── libdd-trace-stats v6.0.0 (*)
      │   │       └── (dev) libdd-trace-utils v9.0.0 (*)
      │   ├── libdd-data-pipeline v7.0.0 (*)
      │   ├── libdd-dogstatsd-client v4.0.0 (*)
      │   ├── libdd-shared-runtime v2.0.0 (*)
      │   ├── libdd-telemetry v6.0.0 (*)
      │   ├── libdd-trace-obfuscation v5.0.0 (*)
      │   ├── libdd-trace-stats v6.0.0 (*)
      │   └── libdd-trace-utils v9.0.0 (*)
      ├── (dev) libdd-data-pipeline v7.0.0 (*)
      ├── (dev) libdd-ddsketch v1.1.0
      │   ├── libdd-data-pipeline v7.0.0 (*)
      │   ├── libdd-telemetry v6.0.0 (*)
      │   └── libdd-trace-stats v6.0.0 (*)
      ├── (dev) libdd-trace-normalization v3.0.0
      │   ├── libdd-data-pipeline v7.0.0 (*)
      │   └── libdd-trace-utils v9.0.0 (*)
      ├── (dev) libdd-trace-stats v6.0.0 (*)
      ├── libdd-trace-utils v9.0.0 (*)
      └── proptest v1.5.0
          └── (dev) libdd-tinybytes v1.1.1
              ├── libdd-data-pipeline v7.0.0 (*)
              ├── (dev) libdd-tinybytes v1.1.1 (*)
              └── libdd-trace-utils v9.0.0 (*)

error[vulnerability]: Denial of Service via Stack Exhaustion
    ┌─ /home/runner/work/libdatadog/libdatadog/Cargo.lock:287:1
    │
287 │ time 0.3.41 registry+https://github.com/rust-lang/crates.io-index
    │ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ security vulnerability detected
    │
    ├ ID: RUSTSEC-2026-0009
    ├ Advisory: https://rustsec.org/advisories/RUSTSEC-2026-0009
    ├ ## Impact
      
      When user-provided input is provided to any type that parses with the RFC 2822 format, a denial of
      service attack via stack exhaustion is possible. The attack relies on formally deprecated and
      rarely-used features that are part of the RFC 2822 format used in a malicious manner. Ordinary,
      non-malicious input will never encounter this scenario.
      
      ## Patches
      
      A limit to the depth of recursion was added in v0.3.47. From this version, an error will be returned
      rather than exhausting the stack.
      
      ## Workarounds
      
      Limiting the length of user input is the simplest way to avoid stack exhaustion, as the amount of
      the stack consumed would be at most a factor of the length of the input.
    ├ Announcement: https://github.com/time-rs/time/blob/main/CHANGELOG.md#0347-2026-02-05
    ├ Solution: Upgrade to >=0.3.47 (try `cargo update -p time`)
    ├ time v0.3.41
      └── tracing-appender v0.2.3
          └── libdd-log v1.0.0
              └── (dev) libdd-data-pipeline v7.0.0

advisories FAILED, bans ok, sources ok

📦 `libdd-dogstatsd-client` - 1 error(s)

Show output

error[unsound]: Rand is unsound with a custom logger using `rand::rng()`
   ┌─ /home/runner/work/libdatadog/libdatadog/Cargo.lock:77:1
   │
77 │ rand 0.8.5 registry+https://github.com/rust-lang/crates.io-index
   │ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ unsound advisory detected
   │
   ├ ID: RUSTSEC-2026-0097
   ├ Advisory: https://rustsec.org/advisories/RUSTSEC-2026-0097
   ├ It has been reported (by @lopopolo) that the `rand` library is [unsound](https://rust-lang.github.io/unsafe-code-guidelines/glossary.html#soundness-of-code--of-a-library) (i.e. that safe code using the public API can cause Undefined Behaviour) when all the following conditions are met:
     
     - The `log` and `thread_rng` features are enabled
     - A [custom logger](https://docs.rs/log/latest/log/#implementing-a-logger) is defined
     - The custom logger accesses `rand::rng()` (previously `rand::thread_rng()`) and calls any `TryRng` (previously `RngCore`) methods on `ThreadRng`
     - The `ThreadRng` (attempts to) reseed while called from the custom logger (this happens every 64 kB of generated data)
     - Trace-level logging is enabled or warn-level logging is enabled and the random source (the `getrandom` crate) is unable to provide a new seed
     
     `TryRng` (previously `RngCore`) methods for `ThreadRng` use `unsafe` code to cast `*mut BlockRng<ReseedingCore>` to `&mut BlockRng<ReseedingCore>`. When all the above conditions are met this results in an aliased mutable reference, violating the Stacked Borrows rules. Miri is able to detect this violation in sample code. Since construction of [aliased mutable references is Undefined Behaviour](https://doc.rust-lang.org/stable/nomicon/references.html), the behaviour of optimized builds is hard to predict.
   ├ Announcement: https://github.com/rust-random/rand/pull/1763
   ├ Solution: Upgrade to >=0.10.1 OR <0.10.0, >=0.9.3 OR <0.9.0, >=0.8.6 (try `cargo update -p rand`)
   ├ rand v0.8.5
     └── (dev) libdd-common v5.1.0
         ├── libdd-capabilities-impl v3.0.0
         │   └── libdd-shared-runtime v2.0.0
         │       └── libdd-dogstatsd-client v4.0.0
         ├── libdd-dogstatsd-client v4.0.0 (*)
         └── libdd-shared-runtime v2.0.0 (*)

advisories FAILED, bans ok, sources ok

Updated: 2026-07-10 15:08:31 UTC | Commit: 7bf281b | dependency-check job results

datadog-prod-us1-6 · 2026-07-10T12:53:35Z

✨ Fix all issues with BitsAI

⚠️ Warnings

🚦 18 Pipeline jobs failed

Check crypto providers | ring + aws-lc-rs are not both pulled into any workspace crate

Coverage | coverage

DataDog/apm-reliability/libdatadog | benchmarks 2/2

View all 18 failed jobs.

Useful? React with 👍 / 👎

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

🔗 Commit SHA: 0e35cfd | Docs | Datadog PR Page | Give us feedback!}

dd-octo-sts · 2026-07-10T13:18:06Z

Artifact Size Benchmark Report

aarch64-alpine-linux-musl

Artifact	Baseline	Commit	Change
/aarch64-alpine-linux-musl/lib/libdatadog_profiling.so	7.88 MB	7.88 MB	0% (0 B) 👌
/aarch64-alpine-linux-musl/lib/libdatadog_profiling.a	85.88 MB	85.87 MB	-0% (-5.63 KB) 👌

aarch64-unknown-linux-gnu

Artifact	Baseline	Commit	Change
/aarch64-unknown-linux-gnu/lib/libdatadog_profiling.so	10.61 MB	10.61 MB	-0% (-104 B) 👌
/aarch64-unknown-linux-gnu/lib/libdatadog_profiling.a	97.10 MB	97.10 MB	+0% (+216 B) 👌

libdatadog-x64-windows

Artifact	Baseline	Commit	Change
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.dll	25.45 MB	25.45 MB	--.02% (-5.50 KB) 💪
/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	184.55 MB	184.49 MB	--.03% (-64.00 KB) 💪
/libdatadog-x64-windows/debug/static/datadog_profiling_ffi.lib	946.77 MB	946.57 MB	--.02% (-197.72 KB) 💪
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.dll	8.32 MB	8.32 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	24.62 MB	24.62 MB	0% (0 B) 👌
/libdatadog-x64-windows/release/static/datadog_profiling_ffi.lib	49.03 MB	49.03 MB	+0% (+18 B) 👌

libdatadog-x86-windows

Artifact	Baseline	Commit	Change
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.dll	22.05 MB	22.05 MB	--.01% (-4.00 KB) 💪
/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	188.76 MB	188.69 MB	--.03% (-72.00 KB) 💪
/libdatadog-x86-windows/debug/static/datadog_profiling_ffi.lib	935.45 MB	935.27 MB	--.01% (-179.65 KB) 💪
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.dll	6.43 MB	6.43 MB	+0% (+512 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	26.43 MB	26.43 MB	0% (0 B) 👌
/libdatadog-x86-windows/release/static/datadog_profiling_ffi.lib	46.66 MB	46.66 MB	+0% (+582 B) 👌

x86_64-alpine-linux-musl

Artifact	Baseline	Commit	Change
/x86_64-alpine-linux-musl/lib/libdatadog_profiling.a	76.58 MB	76.58 MB	-0% (-1.85 KB) 👌
/x86_64-alpine-linux-musl/lib/libdatadog_profiling.so	8.78 MB	8.78 MB	0% (0 B) 👌

x86_64-unknown-linux-gnu

Artifact	Baseline	Commit	Change
/x86_64-unknown-linux-gnu/lib/libdatadog_profiling.a	92.10 MB	92.11 MB	+0% (+1.85 KB) 👌
/x86_64-unknown-linux-gnu/lib/libdatadog_profiling.so	10.69 MB	10.69 MB	+0% (+136 B) 👌

chatgpt-codex-connector

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 7bafd9bcfa

ℹ️ About Codex in GitHub

Codex has been enabled to automatically review pull requests in this repo. Reviews are triggered when you

Open a pull request for review
Mark a draft as ready
Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

When you sign up for Codex through ChatGPT, Codex can also answer questions or update the PR, like "@codex address that feedback".

chatgpt-codex-connector · 2026-07-10T14:46:23Z

+                std::future::pending::<()>().await;
+            }
+        }
+        println!("Received metric: {:#?}", self.pending);


Remove per-metric stdout logging

When the shared-runtime client is used, trigger runs once per metric, so this println! writes the full DogStatsD line (including tags) to the host process's stdout before forwarding it. Because libdatadog is embedded in customer runtimes, this creates an unsolicited global side effect, can leak metric/tag data into application logs, and can flood or block the hot metric path; use structured tracing at a disabled-by-default level or remove it.

Useful? React with 👍 / 👎.

chatgpt-codex-connector · 2026-07-10T14:46:23Z

 tracing = { version = "0.1", default-features = false }
 anyhow = { version = "1.0" }
 http = "1.1"
+libdd-shared-runtime = { version = "2.0.0", path = "../libdd-shared-runtime", optional = true }


Preserve FIPS feature wiring for shared runtime

With this optional dependency using default features, enabling shared-runtime also enables libdd-shared-runtime's default https feature, and libdd-dogstatsd-client's fips feature only reaches its direct libdd-common dependency. In a --no-default-features --features shared-runtime,fips build this pulls the shared runtime's non-FIPS HTTPS stack instead of propagating libdd-shared-runtime/fips, unlike the other crates in this workspace that depend on the shared runtime with default-features = false and wire both https and fips through.

Useful? React with 👍 / 👎.

pr-commenter · 2026-07-10T14:51:31Z

Benchmarks

Comparison

Benchmark execution time: 2026-07-10 14:44:30

Comparing candidate commit 7bafd9b in PR branch 07-10-feat_dogstatsd_add_shared_runtime_buffered_sink with baseline commit 30d94f8 in branch vianney/statsd-client-refactor.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 142 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 ----------------------------------'

Benchmark execution time: 2026-07-10 14:58:21

Comparing candidate commit 7bafd9b in PR branch 07-10-feat_dogstatsd_add_shared_runtime_buffered_sink with baseline commit 30d94f8 in branch vianney/statsd-client-refactor.

Found 3 performance improvements and 3 performance regressions! Performance is the same for 171 metrics, 10 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 [+20.588ns; +20.709ns] or [+26.690%; +26.846%]

scenario:alloc_free/system/4096

🟥 execution_time [+8.931ns; +9.094ns] or [+10.543%; +10.735%]

scenario:datadog_sample_span/name_pattern_rule_not_matching/wall_time

🟩 execution_time [-6.655ns; -6.542ns] or [-4.105%; -4.036%]

scenario:glob_matcher/unicode_pattern_wildcard_match/wall_time

🟩 execution_time [-6.471ns; -6.366ns] or [-4.995%; -4.914%]

scenario:receiver_entry_point/report/2644

🟥 execution_time [+190.404µs; +203.849µs] or [+5.241%; +5.611%]

scenario:trace_buffer/8_senders/no_delay

🟩 throughput [+42875.401op/s; +51742.841op/s] or [+4.003%; +4.831%]

Candidate

Omitted due to size.

Baseline

Omitted due to size.

VianneyRuhlmann mentioned this pull request Jul 10, 2026

refactor(statsd)!: make client clonable #2222

Open

VianneyRuhlmann force-pushed the 07-10-feat_dogstatsd_add_shared_runtime_buffered_sink branch from 8eb7bc6 to fed7da4 Compare July 10, 2026 14:05

VianneyRuhlmann force-pushed the vianney/statsd-client-refactor branch from 597364e to b905f96 Compare July 10, 2026 14:05

VianneyRuhlmann force-pushed the 07-10-feat_dogstatsd_add_shared_runtime_buffered_sink branch from fed7da4 to 7bafd9b Compare July 10, 2026 14:11

VianneyRuhlmann force-pushed the vianney/statsd-client-refactor branch from b905f96 to 30d94f8 Compare July 10, 2026 14:11

VianneyRuhlmann marked this pull request as ready for review July 10, 2026 14:38

VianneyRuhlmann requested review from a team as code owners July 10, 2026 14:38

VianneyRuhlmann changed the title ~~feat(dogstatsd): add shared_runtime buffered sink~~ feat(dogstatsd)!: add shared_runtime buffered sink Jul 10, 2026

chatgpt-codex-connector Bot reviewed Jul 10, 2026

View reviewed changes

VianneyRuhlmann force-pushed the 07-10-feat_dogstatsd_add_shared_runtime_buffered_sink branch from 7bafd9b to 8f5b1cf Compare July 10, 2026 15:02

VianneyRuhlmann requested a review from a team as a code owner July 10, 2026 15:02

github-actions Bot added the data-pipeline label Jul 10, 2026

feat(dogstatsd): add shared_runtime buffered sink

0e35cfd

VianneyRuhlmann force-pushed the 07-10-feat_dogstatsd_add_shared_runtime_buffered_sink branch from 8f5b1cf to 0e35cfd Compare July 10, 2026 15:06

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

feat(dogstatsd)!: add shared_runtime buffered sink#2224

feat(dogstatsd)!: add shared_runtime buffered sink#2224
VianneyRuhlmann wants to merge 1 commit into
vianney/statsd-client-refactorfrom
07-10-feat_dogstatsd_add_shared_runtime_buffered_sink

VianneyRuhlmann commented Jul 10, 2026 •

edited

Loading

Uh oh!

VianneyRuhlmann commented Jul 10, 2026

Uh oh!

github-actions Bot commented Jul 10, 2026 •

edited

Loading

Uh oh!

github-actions Bot commented Jul 10, 2026 •

edited

Loading

Uh oh!

github-actions Bot commented Jul 10, 2026 •

edited

Loading

Uh oh!

datadog-prod-us1-6 Bot commented Jul 10, 2026 •

edited by datadog-official Bot

Loading

Uh oh!

dd-octo-sts Bot commented Jul 10, 2026 •

edited

Loading

Uh oh!

chatgpt-codex-connector Bot left a comment

Uh oh!

chatgpt-codex-connector Bot Jul 10, 2026

Uh oh!

chatgpt-codex-connector Bot Jul 10, 2026

Uh oh!

pr-commenter Bot commented Jul 10, 2026 •

edited

Loading

Explanation

More details about the CI and significant changes

Explanation

More details about the CI and significant changes

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

1 participant

Uh oh!

Conversation

VianneyRuhlmann commented Jul 10, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

What does this PR do?

Motivation

Additional Notes

How to test the change?

Uh oh!

VianneyRuhlmann commented Jul 10, 2026

Uh oh!

github-actions Bot commented Jul 10, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

📚 Documentation Check Results

📦 libdd-data-pipeline - 1178 warning(s)

📦 libdd-dogstatsd-client - 169 warning(s)

Uh oh!

github-actions Bot commented Jul 10, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Clippy Allow Annotation Report

Summary by Rule

Annotation Counts by File

Annotation Stats by Crate

About This Report

Uh oh!

github-actions Bot commented Jul 10, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

🔒 Cargo Deny Results

📦 libdd-data-pipeline - 3 error(s)

📦 libdd-dogstatsd-client - 1 error(s)

Uh oh!

datadog-prod-us1-6 Bot commented Jul 10, 2026 • edited by datadog-official Bot Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

⚠️ Warnings

Uh oh!

dd-octo-sts Bot commented Jul 10, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Artifact Size Benchmark Report

Uh oh!

chatgpt-codex-connector Bot left a comment

Choose a reason for hiding this comment

💡 Codex Review

Uh oh!

chatgpt-codex-connector Bot Jul 10, 2026

Choose a reason for hiding this comment

Uh oh!

chatgpt-codex-connector Bot Jul 10, 2026

Choose a reason for hiding this comment

Uh oh!

pr-commenter Bot commented Jul 10, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Benchmarks

Comparison

Explanation

More details about the CI and significant changes

Explanation

More details about the CI and significant changes

scenario:alloc_free/sampled_system_fast_path/4096

scenario:alloc_free/system/4096

scenario:datadog_sample_span/name_pattern_rule_not_matching/wall_time

scenario:glob_matcher/unicode_pattern_wildcard_match/wall_time

scenario:receiver_entry_point/report/2644

scenario:trace_buffer/8_senders/no_delay

Candidate

Baseline

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

1 participant

VianneyRuhlmann commented Jul 10, 2026 •

edited

Loading

github-actions Bot commented Jul 10, 2026 •

edited

Loading

📦 `libdd-data-pipeline` - 1178 warning(s)

📦 `libdd-dogstatsd-client` - 169 warning(s)

github-actions Bot commented Jul 10, 2026 •

edited

Loading

github-actions Bot commented Jul 10, 2026 •

edited

Loading

📦 `libdd-data-pipeline` - 3 error(s)

📦 `libdd-dogstatsd-client` - 1 error(s)

datadog-prod-us1-6 Bot commented Jul 10, 2026 •

edited by datadog-official Bot

Loading

dd-octo-sts Bot commented Jul 10, 2026 •

edited

Loading

pr-commenter Bot commented Jul 10, 2026 •

edited

Loading