Posts by Francesco Nigro

We found our benchmark was measuring Spring's warmup, not its peak. We changed it. Spring's numbers went up. Quarkus's didn't. That's what fairness looks like.

Throughput averages hide warmup problems. On 4 cores with 100 connections, C2 compiler threads are starved by platform threads. pidstat and JFR show how.

Our perf-lab shows Quarkus 2x faster than Spring, but a community member only sees 1.19x locally. The culprit: a userspace TCP proxy hidden inside rootless podman.