The author reduced the Markdown AST node size from 232 bytes to just 16 bytes by consolidating fields, using compact type representation, and switching to an arena allocator. The optimization involved eliminating per-node unused fields, padding, and separate string/vector allocations.
Background
The post documents the process of porting and optimizing markdown-rs for a C++ UI library, demonstrating practical techniques for reducing memory footprint in tree-structured parsers.
- Source
- Lobsters
- Published
- Aug 23, 2026 at 07:51 PM
- Score
- 6.0 / 10