Postgres Async I/O Q&A with Tomas Vondra

Postgres 18 was released with Asynchronous I/O (AIO) out of the box which is expected to have wide sweeping performance improvements for many users - 4-5x better read performance for some. The introduction of a native async i/o subsystem marks one of the most significant architectural shifts in Postgres’ history.

Join us for a deep-dive session featuring Tomas Vondra, PostgreSQL Committer and one of several engineers on the async i/o project. Tomas has done a lot of work on the benchmarking and measurement aspect of async i/o.

This meetup will have a few slides but the primary focus will be a Technical Q&A. We know a lot of our members have questions about this feature and how it will impact them. Tomas will briefly recap the "why" and "how" of AIO—and then open the floor to questions.

Please submit questions ahead of time at {link here}.

Tomas Vondra is a veteran PostgreSQL Committer and a prominent figure in the global database community. Tomas is currently a Software Engineer at Microsoft specializing in the high-stakes world of database internals and performance optimization.