snapshot of https://github.com/centrifugal/centrifugo.git (master, 2026-09-16; blobs > 131072B omitted)

misc/benchmarking/k6/uni_ws/benchmark.js

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+import ws from 'k6/ws';
+import { check } from 'k6';
+
+export let options = {
+  stages: [
+    // Ramp up to 5000 connections over 60 seconds
+    { duration: '60s', target: 5000 },
+    // Hold 5000 connections for 4 minutes
+    { duration: '4m', target: 5000 },
+    // Ramp down to 0 connections
+    { duration: '10s', target: 0 },
+  ],
+};
+
+export default function () {
+  const url = 'ws://localhost:8000/connection/uni_websocket?cf_connect={}';
+  
+  const response = ws.connect(url, {}, function (socket) {
+    socket.on('open', function open() {
+      console.log('WebSocket connection established');
+    });
+
+    socket.on('message', function message(data) {
+      console.log('Received message:', data);
+    });
+
+    socket.on('close', function close() {
+      console.log('WebSocket connection closed');
+    });
+
+    socket.on('error', function error(e) {
+      console.log('WebSocket error:', e.error());
+    });
+
+    // Keep the connection alive for the duration of the test
+    // The connection will be closed when the VU iteration ends
+    socket.setTimeout(function () {
+      socket.close();
+    }, 300000); // 5 minutes timeout as safety measure
+    
+    // Send a ping every 30 seconds to keep connection active
+    socket.setInterval(function () {
+      socket.ping();
+    }, 30000);
+  });
+
+  check(response, { 'status is 101': (r) => r && r.status === 101 });
+}

misc/benchmarking/k6/uni_ws/readme.md

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+Makes 5k conns to unidirectional websocket endpoint during 1 min, waits 4 mins, stops.
+
+```
+k6 run benchmark.js
+```