Benchmarking Java 21: Virtual Threads Latency Deep Dive
Post-Mortem: Socket Exhauster on Node 04 java.lang.OutOfMemoryError: Thread creation failed: Operating system resource exhausted at java.base/java.lang.Thread.start(Thread.java:1539) at java.base/java.lang.VirtualThread.start(VirtualThread.java:307) at com.fintech.ledger.io.SocketWorkerPool.dispatch(SocketWorkerPool.java:88) at com.fintech.ledger.GatewayServer.lambda$acceptConnections$3(GatewayServer.java:142) at java.base/jdk.internal.vm.Continuation.enter(Continuation.java:340) … Caused by: java.io.UncheckedIOException: java.net.SocketException: Too many open files at com.fintech.ledger.io.NativeEpollDispatcher.register(NativeEpollDispatcher.java:211) It pinned. Hard. After three days of staring at raw kernel-bypass logs on Node 04, watching p99.9 latencies blow past … Read more