Rustbench

rustbench is a lightweight Rust procedural macro for benchmarking function execution time.

Installation

To use rustbench, add it to your Cargo.toml:

[dependencies]
rustbench = "0.1.0"

Then, add the macro as a procedural macro dependency:

[lib]
proc-macro = true

Usage

Simply annotate any function with #[benchmark] to measure its execution time.

use rustbench::benchmark;

#[benchmark]
fn sum() {
    let sum: u64 = (1..=1_000_000).sum();
    println!("Sum: {}", sum);
}

fn main() {
    sum();
}

Output

When sum runs, it prints the execution time:

Function sum executed in 12.3ms

Features (Planned)

• Custom Iterations: Run the function multiple times for better measurement.
• Comparison Mode: Compare execution time of two functions.
• Output Formats: JSON, CSV, or plain text.
• Memory Profiling: Measure memory usage during execution.
• Integration with Logging: Store benchmark results in logs.