Performance

ZIO is a high-performance framework that is powered by non-blocking fibers, with optional virtual-thread (Loom) execution available via Runtime.enableLoomBasedExecutor.

ZIO's core execution engine minimizes allocations and automatically cancels all unused computation. All data structures included with ZIO are high-performance and non-blocking, and to the maximum extent possible on the JVM, non-boxing.

The benchmarks project has a variety of benchmarks that compare the performance of ZIO with other similar projects in the Scala and Java ecosystems, demonstrating 2-100x faster performance in some cases.

Benchmarks to compare the performance of HTTP, GraphQL, RDMBS, and other ZIO integrations can be found in those respective projects.

Next Steps

If you are comfortable with ZIO's performance characteristics, the next step is to learn about platforms.