Optimizing memory usage in a markdown parser

Ctrl + K to search... Home • Software • Contact Me Optimizing memory use in a Markdown parser edit I’m porting gpui-component (a Rust UI component library built on GPUI) to C++ as gpui-cpp . By which I mean: my friend Claude does the…

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Ctrl + K to search... Home • Software • Contact Me Optimizing memory use in a Markdown parser edit I’m porting gpui-component (a Rust UI component library built on GPUI) to C++ as gpui-cpp . By which I mean: my friend Claude does the porting, I’m just directing. It uses markdown-rs (a CommonMark + GFM parser) so I ported it too. Then I optimized it. This post describes what I did with the intention of teaching others how to optimize C++ code. The starting point There are 2 kinds of markdown parsers: those that stream nodes as they parse those that build an AST in memory markdown-rs builds an AST. The game is about minimizing the size of AST node. Rust version has different Node types of different sizes, the largest being 152 bytes. Claude generated a single Node struct of 232 bytes. I got…

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