Optimizing a Math Expression Parser in Rust
10 months ago
- #Optimization
- #Rust
- #Parser
- Baseline implementation of a math expression parser in Rust took 43.1 seconds.
- Optimization 1: Eliminated vector allocation during tokenization, reducing time to 6.45 seconds (85% improvement).
- Optimization 2: Parsed directly from input bytes instead of strings, reducing time to 3.68 seconds (43% improvement).
- Optimization 3: Removed Peekable iterator, reducing time to 3.21 seconds (13% improvement).
- Optimization 4: Implemented multithreading and SIMD for parallel processing, reducing time to 2.21 seconds (31% improvement).
- Optimization 5: Used memory-mapped I/O to avoid extra copying, reducing time to 0.98 seconds (56% improvement).
- Final optimized parser runs in under a second, down from the initial 43 seconds.