Mark Thomas

Mark Thomas

Blog posts by Mark Thomas

Web applications and Project Loom

Engineering | February 27, 2023 | ...


Project Loom aims to bring "easy-to-use, high-throughput, lightweight concurrency" to the JRE. One feature introduced by Project Loom is virtual threads. In this blog post, we'll be exploring what virtual threads mean for web applications using some simple web applications deployed on Apache Tomcat.

High-throughput / Lightweight

The first experiment was to compare the overhead associated with using Tomcat's standard thread pool to the overhead associated with using a virtual thread (Loom) based executor. The test environment used is detailed at the end of this post. Performance…

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