Comparison and Benchmarking of Rust Decimal Crates
Summary
The article compares Rust decimal crates (bigdecimal, fastnum, rust_decimal, decimax, primitive_fixed_point_decimal), weighing fixed-point vs floating-point approaches, memory layouts, and benchmarks across 128-bit and 64-bit sizes. It concludes fixed-point options offer stable, predictable performance, while arbitrary-precision options trade speed for flexibility, with rust_decimal and decimax as balanced choices.