crates.io · #4433 most downloaded on crates.io

puffin

0.20.06.1M downloads/moEmbarkStudios/puffin ↗New releases in your daily digest, changelog included.

Simple instrumentation profiler for games

Last release 6 months ago
18 Mar 2026
Ships unpredictably
gaps range from 9 days to 1.6 years
Most releases are documented
notes for 28 of 33 stable releases
2 versions withdrawn
withdrawn after publishing
6 years old
35 releases · first in 2020

Release timeline

35 releases since 2020

2020202120222023202420252026

20202026

One column per quarter.

Releases

0.20.018 Mar 2026
PR#274 Fix trimming of unicode scope names
PR#274 Fix trimming of unicode scope names

PR#269 Reuse existing scope ids in register_user_scopes

PR#260 Inline are_scopes_on() (80% perf improvement)

PR#258 Add PFD1 to PFD4 deserialization tests

PR#251 Replace once_cell::Lazy with std::sync::LazyLock

PR#230 Remove ::{{closure}} in more cases from function names

PR#271 Update MSRV to 1.92

PR#272 Update most dependencies
Open source →
0.19.131 Jul 2024
PR#151 Optimize frame statistics collection.

PR#151 Optimize frame statistics collection.
PR#224 Add conditional profile macros: profile_function_if, profile_scope_if, etc.

Open source →

0.19.017 Jan 2024Breaking

Allow better usage of static strings in profile scopes. Breaking change! See PR for migration guide.

PR#169 Stream scope information only once, drastically reduce bandwidth and increased performance. Allow better usage of static strings in profile scopes. Breaking change! See PR for migration guide.
PR#179 Update egui to v0.25 and a updates many other dependencies in process.
PR#181 Measure profile scope start time after serialization functions.

Open source →

0.18.111 Dec 2023

PR#175 Remove accidental ::{{closure}} suffix from all profile_function scopes.

PR#175 Remove accidental ::{{closure}} suffix from all profile_function scopes.

Open source →

0.18.021 Nov 2023

PR#165 Faster profiling, add line numbers, better paths, and better function names

PR#165 Faster profiling, add line numbers, better paths, and better function names

Open source →

0.17.120 Nov 2023withdrawnBreaking

Accidentally introduced a breaking change in PR#165

Accidentally introduced a breaking change in PR#165

Open source →

0.17.028 Sept 2023

PR#140 Remove imgui support for

PR#140 Remove imgui support for
PR#158 Remove file I/O from
PR#157 Remove instant dependency when not building for web

Open source →

0.16.024 May 2023

PR#135 Allow picking lz4_flex and zstd compression by feature flag.

PR#136 Upgrade ruzstd to 0.4
PR#135 Allow picking lz4_flex and zstd compression by feature flag.

Open source →

0.15.024 Apr 2023

- PR#118 Updated zstd 0.12.3

PR#118 Updated zstd 0.12.3

Open source →

0.14.39 Feb 2023

PR#117 Add function latest_frames to retrieve latest _n_ captured frames.

PR#117 Add function latest_frames to retrieve latest n captured frames.

Open source →

0.14.230 Jan 2023

PR#123 Fix puffin build for non-web wasm environments.

PR#123 Fix puffin build for non-web wasm environments.

Open source →

0.14.113 Dec 2022

PR#112 You can now compile and run puffin on the web if you enable the "web" feature.

PR#112 You can now compile and run puffin on the web if you enable the "web" feature.

Open source →

0.14.07 Nov 2022

PR#102 Add a runtime setting on frameview to pack or not

Fixed

PR#102 Add a runtime setting on frameview to pack or not

Open source →

0.13.310 Jun 2022

PR#83 Add a runtime setting on frameview to pack or not

Changed

PR#83 Add a runtime setting on frameview to pack or not

Open source →

0.13.24 May 2022

### Changed * PR#76 updated zstd to 0.11.1

Changed

PR#76 updated zstd to 0.11.1

Open source →

0.13.19 Feb 2022

Nothing published for this version

0.13.07 Feb 2022

Fix compilation for wasm32-unknown-unknown.

Fixed

Fix compilation for wasm32-unknown-unknown.

Changed

Upgrade ztd v0.9 -> v0.10
PR#64 updated dependencies and cleaned up crate metadata.

Open source →

0.12.116 Nov 2021

Make parking_lot an optional dependency.

Fixed

Make parking_lot an optional dependency.

Open source →

0.12.016 Nov 2021

In-memory compression of frames to use up less RAM. Enabled by the new feature "packing".

Fixed

In-memory compression of frames to use up less RAM. Enabled by the new feature "packing".

Changed

Remove support for legacy .puffin files in order to remove lz4_flex dependency.

Open source →

0.11.012 Nov 2021Deprecated

Remove deprecated macros profile_function_data and profile_scope_data.

Changed

Introduce StreamInfoRef to avoid memory allocations.
Remove deprecated macros profile_function_data and profile_scope_data.

Open source →

0.10.12 Nov 2021

now_ns now returns nanoseconds since unix epoch.

Fixed

now_ns now returns nanoseconds since unix epoch.
Make scope merging deterministic.

Open source →

0.10.012 Oct 2021

### Changed * Rewrite scope merging. * Implement Hash on ThreadInfo.

Changed

Rewrite scope merging.
Implement Hash on ThreadInfo.

Open source →

0.9.020 Sept 2021

API change: split out new FrameView and GlobalFrameView from GlobalProfiler.

Changed

API change: split out new FrameView and GlobalFrameView from GlobalProfiler.

Open source →

0.8.17 Sept 2021

Remove profile scopes in serialization to avoid deadlock in puffin_viewer.

Fixed

Remove profile scopes in serialization to avoid deadlock in puffin_viewer.

Open source →

0.8.06 Sept 2021

Switch from lz4 to zstd compression for 50% file size and bandwidth reduction.

Changed

Switch from lz4 to zstd compression for 50% file size and bandwidth reduction.

Open source →

0.7.023 Aug 2021

Speed up GlobalProfiler::new_frame.

Changed

Speed up GlobalProfiler::new_frame.
New serialization feature flag enables exporting and importing .puffin files. This replaces the old with_serde feature flag.

Added

Add GlobalProfiler::add_sink for installing callbacks that are called each frame.

Open source →

0.6.05 Jul 2021

Handle Windows, which uses backslash (\) as path separator.

Fixed

Handle Windows, which uses backslash (\) as path separator.

Open source →

0.5.214 Jun 2021

### Changed * Add opt-in serde support.

Changed

Add opt-in serde support.

Open source →

0.5.127 May 2021

Remove stderr warning about empty frames.

Fixed

Remove stderr warning about empty frames.

Open source →

0.5.027 May 2021

GlobalProfiler now store recent history and the slowest frames.

Changed

GlobalProfiler now store recent history and the slowest frames.

[Unreleased]: https://github.com/EmbarkStudios/puffin/compare/puffin-0.20.0...HEAD [0.20.0]: https://github.com/EmbarkStudios/puffin/compare/puffin-0.19.1...puffin-0.20.0 [0.19.1]: https://github.com/EmbarkStudios/puffin/compare/0.19.0...puffin-0.19.1 [0.19.0]: https://github.com/EmbarkStudios/puffin/compare/0.18.1...0.19.0 [0.18.1]: https://github.com/EmbarkStudios/puffin/compare/0.18.0...0.18.1 [0.18.0]: https://github.com/EmbarkStudios/puffin/compare/0.17.1...0.18.0 [0.17.1]: https://github.com/EmbarkStudios/puffin/compare/0.17.0...0.17.1 [0.17.0]: https://github.com/EmbarkStudios/puffin/compare/0.16.0...0.17.0 [0.16.0]: https://github.com/EmbarkStudios/puffin/compare/0.15.0...0.16.0 [0.15.0]: https://github.com/EmbarkStudios/puffin/compare/0.14.3...0.15.0 [0.14.3]: https://github.com/EmbarkStudios/puffin/compare/0.14.2...0.14.3 [0.14.2]: https://github.com/EmbarkStudios/puffin/compare/0.14.1...0.14.2 [0.14.1]: https://github.com/EmbarkStudios/puffin/compare/0.14.0...0.14.1 [0.14.0]: https://github.com/EmbarkStudios/puffin/compare/0.13.2...0.14.0 [0.13.2]: https://github.com/EmbarkStudios/puffin/compare/0.13.0...0.13.2 [0.13.0]: https://github.com/EmbarkStudios/puffin/compare/0.12.1...0.13.0 [0.12.1]: https://github.com/EmbarkStudios/puffin/compare/0.12.0...0.12.1 [0.12.0]: https://github.com/EmbarkStudios/puffin/compare/0.11.0...0.12.0 [0.11.0]: https://github.com/EmbarkStudios/puffin/compare/0.10.1...0.11.0 [0.10.1]: https://github.com/EmbarkStudios/puffin/compare/0.10.0...0.10.1 [0.10.0]: https://github.com/EmbarkStudios/puffin/compare/0.9.0...0.10.0 [0.9.0]: https://github.com/EmbarkStudios/puffin/compare/0.8.1...0.9.0 [0.8.1]: https://github.com/EmbarkStudios/puffin/compare/0.8.0...0.8.1 [0.8.0]: https://github.com/EmbarkStudios/puffin/compare/0.7.0...0.8.0 [0.7.0]: https://github.com/EmbarkStudios/puffin/compare/0.6.0...0.7.0 [0.6.0]: https://github.com/EmbarkStudios/puffin/compare/0.5.1...0.6.0 [0.5.2]: https://github.com/EmbarkStudios/puffin/compare/0.5.1...0.5.2 [0.5.1]: https://github.com/EmbarkStudios/puffin/compare/0.5.0...0.5.1 [0.5.0]: https://github.com/EmbarkStudios/puffin/releases/tag/0.5.0

Open source →

0.4.08 Mar 2021

Nothing published for this version

0.3.28 Mar 2021withdrawn

Nothing published for this version

0.3.19 Nov 2020

Nothing published for this version

0.3.025 Aug 2020

Nothing published for this version

0.2.010 Aug 2020

Nothing published for this version

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