Crate timelapse

A simple profiler for Rust applications.

This crate provides a basic profiling utility that can be used to measure the elapsed time of code execution. See the Changelog sub-section below for updates and changes.

The TimeLapse profiler is open-source and can be freely used and modified under the terms of the MIT license.

Changelog

[0.1.3] - 2025-06-28

• Added two new macros:

  • profile_end_print!() - Use println! instead of a std::log instance.
  • profile_end_log!() - Additional parameter to select the log’s Level to use.

  See the documentation for usage details.

[0.1.2] - 2025-06-12

• Added example of usage for the defined macros.
• Added a CHANGELOG.md file

[0.1.1] - 2025-06-11

• Added pub use entries in lib.rs to simplify usage in calling applications.

[0.1.0] - 2025-06-10

Initial release

Re-exports

pub use profiler::TimeLapse;

Modules

profiler

A simple profiler for measuring elapsed time in Rust.

Macros

profile_end

The profile_end! macro logs at the info level the elapsed time of the profiling instance created by profile_start!. These macros are useful for quick profiling without needing to manually create and manage TimeLapse instances.

profile_end_log

The profile_end_log! macro logs the elapsed time of the profiling instance created by profile_start!. It allows specifying the log level for the message. This macro is useful for quick profiling without needing to manually create and manage TimeLapse instances.

profile_end_print

The profile_end_print! macro prints the elapsed time of the profiling instance created by profile_start!. This macro is useful for quick profiling without needing to manually create and manage TimeLapse instances.

profile_start

The profile_start! macro initializes a TimeLapse instance to start profiling. It takes an identifier as an argument, which will be instantiated and used to reference the profiler instance.