quanta

chore: Release quanta version 0.12.6

chore: Release quanta version 0.12.5

chore: Release quanta version 0.12.4

chore: Release quanta version 0.12.3

(cargo-release) quanta version 0.12.2

(cargo-release) quanta version 0.12.1

(cargo-release) quanta version 0.12.0

(cargo-release) quanta version 0.11.1

(cargo-release) quanta version 0.11.0

(cargo-release) quanta version 0.10.1

Changed

• Documentation has been updated to reflect that quanta does not track time across system suspends.
• Fixed a panic in the calibration loop if a certain edge case with TSC measurements is encountered.
• Updated a unit test that was frequently flaky to be more precise.

Removed

• Instant::as_u64 has been removed. As it provided direct access to an value that could fundamentally change from version-to-version, it felt like time to remove that footgun and push users more towards the API that mimics std::time.
• Clock::upkeep has been removed. It doesn't need to exist on Clock directly, as we have had the quanta::set_recent free function for a while now, and was just duplicating that.
• Clock::start and Clock::end have been removed. They saw limited usage and overall just added somewhat needless API clutter given that users who are looking to do ultra-precise timing will either want more control or use another technique such as instruction counting.

Added

• CI tests for MIPS/ARM. (#55)

Changed

• Fixed compilation issue with Mock on MIPS/ARM. (#55)
• Simplified how TSC/RDTSC suppoort is detected, which should avoid some situations where it was assumed to be present, but actually was not. (#57)

Changed

• Pinned crossbeam-utils to v0.8.5 where AtomicCell::fetch_update was introduced to fix, which fixes broken builds where Cargo chooses a version between 0.8.0 and 0.8.5.
• Update raw-cpuid to 10.2 and average to 0.13.

Changed

• Switched from atomic-shim to crossbeam-utils for better cross-platform atomic support. (#52)

Added

• Support for WASM/WASI targets. (#45)

Removed

• Instant::as_unix_duration as it was added in error.
• metrics feature flag as metrics-core is no longer a relevant crate.

Changed

• Bumped dependency on raw-cpuid to 9.0 in order to deal with a RustSec advisory.

Fixed

• Incorrect method visibility for non-SSE2 implementation of Counter. (#38)

Changed

• MSRV bumped to 1.45.0.
• Clock::now takes &self instead of &mut self.
• Fixed a bug where a failure to spawn the upkeep thread would not allow subsequent attempts to spawn the upkeep thread to proceed.

Added

• New methods --Instant::now and Instant::recent for getting the current and recent time, respectively.
• New free function quanta::with_clock for setting an override on the current thread that affects calls made to Instant::now and Instant::recent.
• New free function quanta::set_recent to allow customization of how global recent time is updated.

Changed

• Fixed a bug with not being able to start the upkeep thread at all. (#29)

Added

• Add Instant::as_unix_duration to get the duration of time since the Unix epoch from an Instant.

  Changed

• Remove clocksource from dependencies and tests as it no longer compiles on stable or nightly.

Changed

• Publicly expose Clock::upkeep for advanced use cases.
• Relax constraints around checking for multiple sockets. (#25)

Added

• Add support for MIPS/PowerPC. (#23)

Added

• Publicly expose the Error type returned by Upkeep::start.

This version of quanta was a massive overhaul of man areas of the API and internals, which was done in a single PR: (#19). You can read the PR description for the finer details. All changes below are part of the aforementioned PR.

Changed

• Clock::now now returns a monotonic value in all cases.
• No longer possible to get a negative value from Clock::delta.
• Calibration is no longer a fixed one second loop, and will complete when it detects it has a statistically viable calibration ratio, or when it exceeds 200ms of wall-clock time. In most cases, it should complete in under 10ms.
• Calibration is now shared amongst all Clock instances, running only once when the first Clock is created.

Changed

• Fix the logic to figure out when calibration is required. (#14)

Changed

• Small tweak to the docs.

Changed

• Switch to mach for macOS/iOS as it was deprecated in libc. (#12)
• Switch to core::arch for instrinics, and drop the feature flagged configuration to use it. (#12)
• Switch to criterion for benchmarking. (#12)

Changed

• Differentiate between raw and scaled time by adding a new Instant type. (#10)

Changed

• Fixed support for Windows. It was in a bad way, but actually works correctly now!
• Switched to Azure Pipelines CI + Cirrus CI, including formatting, tests, and benchmarks, for Linux, macOS, Windows, and FreeBSD.

Added

• Initial commit.

<!-- next-url --> [Unreleased]: https://github.com/metrics-rs/quanta/compare/v0.13.0...HEAD [0.13.0]: https://github.com/metrics-rs/quanta/compare/v0.12.6...v0.13.0 [0.12.6]: https://github.com/metrics-rs/quanta/compare/v0.12.5...v0.12.6 [0.12.5]: https://github.com/metrics-rs/quanta/compare/v0.12.4...v0.12.5 [0.12.4]: https://github.com/metrics-rs/quanta/compare/v0.12.3...v0.12.4 [0.12.3]: https://github.com/metrics-rs/quanta/compare/v0.12.2...v0.12.3 [0.12.2]: https://github.com/metrics-rs/quanta/compare/v0.12.1...v0.12.2 [0.12.1]: https://github.com/metrics-rs/quanta/compare/v0.12.0...v0.12.1 [0.12.0]: https://github.com/metrics-rs/quanta/compare/v0.11.1...v0.12.0 [0.11.1]: https://github.com/metrics-rs/quanta/compare/v0.11.0...v0.11.1 [0.11.0]: https://github.com/metrics-rs/quanta/compare/v0.10.1...v0.11.0 [0.10.1]: https://github.com/metrics-rs/quanta/compare/v0.10.0...v0.10.1 [0.10.0]: https://github.com/metrics-rs/quanta/releases/tag/v0.10.0