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More Performance Strategies

Keeping Latency Low for User-Defined Functions with WebAssembly

Piotr Sarna describes how to integrate WebAssembly and Wasmtime into a C++ project in a latency-friendly manner by implementing UDFs and UDAs in async Rust.

18 minutes

Piotr Sarna, Founding Engineer at poolside

* Founding Engineer @poolside, hacking fun AI things at scale * Ex-maintainer of ScyllaDB and Seastar * Ex-Staff @Turso * Maintainer of libSQL * Wrote a few patches for the Linux kernel

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P99 CONF OCT. 21 + 22, 2026

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