Notes on Rust, Firefox, MemShrink, JavaScript, and more I recently wrote about some work I’ve done to speed up the Rust compiler. Since then I’ve done some more. rustc-perf improvements Since my last post, rustc-perf — the benchmark suite, harness and visualizer — has seen some improvements. First, some new benchmarks were added: cargo, ripgrep, sentry-cli, and webrender. Also, the parser benchmar