Rust Glancer: Rust LSP using 100x less RAM

matklad 103 points 29 comments August 21, 2026
rust-glancer.github.io · View on Hacker News

https://matklad.github.io/2026/08/21/rust-glancer.html

Discussion Highlights (5 comments)

matklad

To clarify, author is https://github.com/popzxc , not me! My thoughts are here: https://matklad.github.io/2026/08/21/rust-glancer.html

762236

Why don't people explain their acronyms? What is a Rust LSP?

skavi

Waiting for RA to build up the full in memory data structure for a large workspace is so painful. Honestly, I'd just assumed that was the only way and didn't realize Rust Rover was different. Does anyone have experience using that? Any tradeoffs?

mayli

RA with disk cache?

popzxc

Hey! Author here. Happy to answer any questions.

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