Author explores Deno’s optimization for fast Foreign Function Interface (FFI) calls using V8 Fast API Calls. The traditional method involves a lot of type checks and jumps, slowing down the process. Deno introduced Turbocall, a tiny assembler in Rust, to generate optimized bindings for FFI calls based on type information. This led to 100x faster FFI calls in Deno, evident from benchmarks comparing Deno with other runtimes like Node.js. The author discusses the future implications of Deno’s optimization and anticipates comparisons with Static Hermes and just-js/lo for engine-agnostic design. The content provides insightful information on enhancing performance through innovative optimizations.
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