On 26/11/2025 00:25, Robert Engels wrote:
Your platform test is limiting to at most 4 outstanding requests.
I assume it also benefits from being able to use HTTP persistent connections.
The benchmark using virtual threads is very different, it tries to establish 10k connections in a burst. Do you know what connection backlog is used by Tomcat? It may require adjusting net.core.somaxconn (kern.ipc.somaxconn on macOS) and other settings. ~8100 may be 8k and maybe there is something in the Tomcat or Spring connection that controls this.
-Alan
