Conviva Found io_uring Slower Than mmap in Rust Query Engine

Conviva engineer Evan Chan shared a two-part retrospective on replacing mmap with iouring in their Rust query engine, finding that performance actually degraded after the switch.

2026-09-04 ~ 2026-09-06 · 2 related posts

• Conviva Replaced mmap with io_uring in Its Rust Query Engine — and It Got Slower — blaizedsouza · 2026-09-04
• Conviva Swapped mmap for io_uring in Its Rust Query Engine — It Got Slower — blaizedsouza · 2026-09-06