docs(examples): add some examples to track the memory usage

Related: fc21c4a05f
2026-01-09 15:08:12 -05:00 · 2024-06-13 23:18:35 +02:00
parent fc21c4a05f
commit 8955eb7b75
11 changed files with 806 additions and 0 deletions
--- a/examples/memory-usage-webtransport/.gitignore
+++ b/examples/memory-usage-webtransport/.gitignore
@@ -0,0 +1,2 @@
+*.pem
+*.log
--- a/examples/memory-usage-webtransport/client.js
+++ b/examples/memory-usage-webtransport/client.js
@@ -0,0 +1,35 @@
+import { Socket } from "engine.io-client";
+import { X509Certificate } from "crypto";
+import { readFileSync } from "node:fs";
+import { WebTransport } from "@fails-components/webtransport";
+
+const cert = readFileSync("./cert.pem");
+const CLIENTS_COUNT = 100;
+
+global.WebTransport = WebTransport;
+
+for (let i = 0; i < CLIENTS_COUNT; i++) {
+  const socket = new Socket("ws://localhost:3000", {
+    transports: ["webtransport"],
+    transportOptions: {
+      webtransport: {
+        serverCertificateHashes: [
+          {
+            algorithm: "sha-256",
+            value: Buffer.from(
+              new X509Certificate(cert).fingerprint256
+                .split(":")
+                .map((el) => parseInt(el, 16))
+            ),
+          },
+        ],
+      },
+    },
+  });
+
+  socket.on("open", () => {});
+
+  socket.on("message", () => {});
+
+  socket.on("close", (reason) => {});
+}
--- a/examples/memory-usage-webtransport/generate_cert.sh
+++ b/examples/memory-usage-webtransport/generate_cert.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+openssl req -new -x509 -nodes \
+    -newkey ec -pkeyopt ec_paramgen_curve:prime256v1 \
+    -days 14 \
+    -out cert.pem -keyout key.pem \
+    -subj '/CN=127.0.0.1'
--- a/examples/memory-usage-webtransport/package-lock.json
+++ b/examples/memory-usage-webtransport/package-lock.json
@@ -0,0 +1,530 @@
+{
+  "name": "memory-usage-webtransport",
+  "version": "0.0.1",
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+  "requires": true,
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+    "": {
+      "name": "memory-usage-webtransport",
+      "version": "0.0.1",
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+        "@fails-components/webtransport": "^0.3.1",
+        "engine.io-client": "^6.5.3"
+      }
+    },
+    "node_modules/@fails-components/webtransport": {
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+      "resolved": "https://registry.npmjs.org/@fails-components/webtransport/-/webtransport-0.3.1.tgz",
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+      "bin": {
+        "semver": "bin/semver.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/simple-concat": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/simple-concat/-/simple-concat-1.0.1.tgz",
+      "integrity": "sha512-cSFtAPtRhljv69IK0hTVZQ+OfE9nePi/rtJmw5UjHeVyVroEqJXP1sFztKUy1qU+xvz3u/sfYJLa947b7nAN2Q==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ]
+    },
+    "node_modules/simple-get": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/simple-get/-/simple-get-4.0.1.tgz",
+      "integrity": "sha512-brv7p5WgH0jmQJr1ZDDfKDOSeWWg+OVypG99A/5vYGPqJ6pxiaHLy8nxtFjBA7oMa01ebA9gfh1uMCFqOuXxvA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "dependencies": {
+        "decompress-response": "^6.0.0",
+        "once": "^1.3.1",
+        "simple-concat": "^1.0.0"
+      }
+    },
+    "node_modules/string_decoder": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+      "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+      "dependencies": {
+        "safe-buffer": "~5.2.0"
+      }
+    },
+    "node_modules/strip-json-comments": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
+      "integrity": "sha512-4gB8na07fecVVkOI6Rs4e7T6NOTki5EmL7TUduTs6bu3EdnSycntVJ4re8kgZA+wx9IueI2Y11bfbgwtzuE0KQ==",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/tar-fs": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.1.tgz",
+      "integrity": "sha512-V0r2Y9scmbDRLCNex/+hYzvp/zyYjvFbHPNgVTKfQvVrb6guiE/fxP+XblDNR011utopbkex2nM4dHNV6GDsng==",
+      "dependencies": {
+        "chownr": "^1.1.1",
+        "mkdirp-classic": "^0.5.2",
+        "pump": "^3.0.0",
+        "tar-stream": "^2.1.4"
+      }
+    },
+    "node_modules/tar-stream": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-2.2.0.tgz",
+      "integrity": "sha512-ujeqbceABgwMZxEJnk2HDY2DlnUZ+9oEcb1KzTVfYHio0UE6dG71n60d8D2I4qNvleWrrXpmjpt7vZeF1LnMZQ==",
+      "dependencies": {
+        "bl": "^4.0.3",
+        "end-of-stream": "^1.4.1",
+        "fs-constants": "^1.0.0",
+        "inherits": "^2.0.3",
+        "readable-stream": "^3.1.1"
+      },
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/tunnel-agent": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
+      "integrity": "sha512-McnNiV1l8RYeY8tBgEpuodCC1mLUdbSN+CYBL7kJsJNInOP8UjDDEwdk6Mw60vdLLrr5NHKZhMAOSrR2NZuQ+w==",
+      "dependencies": {
+        "safe-buffer": "^5.0.1"
+      },
+      "engines": {
+        "node": "*"
+      }
+    },
+    "node_modules/util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw=="
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
+    },
+    "node_modules/ws": {
+      "version": "8.11.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.11.0.tgz",
+      "integrity": "sha512-HPG3wQd9sNQoT9xHyNCXoDUa+Xw/VevmY9FoHyQ+g+rrMn4j6FB4np7Z0OhdTgjx6MgQLK7jwSy1YecU1+4Asg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": "^5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/xmlhttprequest-ssl": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-2.0.0.tgz",
+      "integrity": "sha512-QKxVRxiRACQcVuQEYFsI1hhkrMlrXHPegbbd1yn9UHOmRxY+si12nQYzri3vbzt8VdTTRviqcKxcyllFas5z2A==",
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    }
+  }
+}
--- a/examples/memory-usage-webtransport/package.json
+++ b/examples/memory-usage-webtransport/package.json
@@ -0,0 +1,11 @@
+{
+  "name": "memory-usage-webtransport",
+  "version": "0.0.1",
+  "private": true,
+  "description": "",
+  "type": "module",
+  "dependencies": {
+    "@fails-components/webtransport": "^0.3.1",
+    "engine.io-client": "^6.5.3"
+  }
+}
--- a/examples/memory-usage-webtransport/server.js
+++ b/examples/memory-usage-webtransport/server.js
@@ -0,0 +1,65 @@
+import { readFileSync } from "node:fs";
+import { Http3Server } from "@fails-components/webtransport";
+import { Server } from "../../build/engine.io.js";
+
+const key = readFileSync("./key.pem");
+const cert = readFileSync("./cert.pem");
+
+const PACKETS_COUNT = 100;
+const PACKET_SIZE = 100;
+
+const engine = new Server({
+  transports: ["polling", "websocket", "webtransport"],
+});
+
+const h3Server = new Http3Server({
+  port: 3000,
+  host: "0.0.0.0",
+  secret: "changeit",
+  cert,
+  privKey: key,
+});
+
+const packets = [];
+
+for (let i = 0; i < PACKETS_COUNT; i++) {
+  packets.push("a".repeat(PACKET_SIZE));
+}
+
+setInterval(() => {
+  Object.keys(engine.clients).forEach((id) => {
+    const client = engine.clients[id];
+    packets.forEach((packet) => {
+      client.send(packet);
+    });
+  });
+}, 10000);
+
+function formatSize(val) {
+  return Math.floor(val / 1024);
+}
+
+setInterval(() => {
+  const mem = process.memoryUsage();
+  console.log(
+    `${Math.floor(process.uptime())}; ${formatSize(mem.heapUsed)}; ${formatSize(
+      mem.heapTotal
+    )}`
+  );
+}, 1000);
+
+h3Server.startServer();
+
+(async () => {
+  // const stream = await h3Server.sessionStream("/engine.io/");
+  const stream = await h3Server.sessionStream("/engine.io/", {});
+  const sessionReader = stream.getReader();
+
+  while (true) {
+    const { done, value } = await sessionReader.read();
+    if (done) {
+      break;
+    }
+    engine.onWebTransportSession(value);
+  }
+})();
--- a/examples/memory-usage/.gitignore
+++ b/examples/memory-usage/.gitignore
@@ -0,0 +1 @@
+*.log
--- a/examples/memory-usage/client.js
+++ b/examples/memory-usage/client.js
@@ -0,0 +1,15 @@
+import { Socket } from "engine.io-client";
+
+const CLIENTS_COUNT = 100;
+
+for (let i = 0; i < CLIENTS_COUNT; i++) {
+  const socket = new Socket("ws://localhost:3000", {
+    transports: ["websocket"],
+  });
+
+  socket.on("open", () => {});
+
+  socket.on("message", () => {});
+
+  socket.on("close", (reason) => {});
+}
--- a/examples/memory-usage/package-lock.json
+++ b/examples/memory-usage/package-lock.json
@@ -0,0 +1,90 @@
+{
+  "name": "memory-usage",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "memory-usage",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "engine.io-client": "^6.5.3"
+      }
+    },
+    "node_modules/@socket.io/component-emitter": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/@socket.io/component-emitter/-/component-emitter-3.1.2.tgz",
+      "integrity": "sha512-9BCxFwvbGg/RsZK9tjXd8s4UcwR0MWeFQ1XEKIQVVvAGJyINdrqKMcTRyLoK8Rse1GjzLV9cwjWV1olXRWEXVA=="
+    },
+    "node_modules/debug": {
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.5.tgz",
+      "integrity": "sha512-pt0bNEmneDIvdL1Xsd9oDQ/wrQRkXDT4AUWlNZNPKvW5x/jyO9VFXkJUP07vQ2upmw5PlaITaPKc31jK13V+jg==",
+      "dependencies": {
+        "ms": "2.1.2"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/engine.io-client": {
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-6.5.3.tgz",
+      "integrity": "sha512-9Z0qLB0NIisTRt1DZ/8U2k12RJn8yls/nXMZLn+/N8hANT3TcYjKFKcwbw5zFQiN4NTde3TSY9zb79e1ij6j9Q==",
+      "dependencies": {
+        "@socket.io/component-emitter": "~3.1.0",
+        "debug": "~4.3.1",
+        "engine.io-parser": "~5.2.1",
+        "ws": "~8.11.0",
+        "xmlhttprequest-ssl": "~2.0.0"
+      }
+    },
+    "node_modules/engine.io-parser": {
+      "version": "5.2.2",
+      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-5.2.2.tgz",
+      "integrity": "sha512-RcyUFKA93/CXH20l4SoVvzZfrSDMOTUS3bWVpTt2FuFP+XYrL8i8oonHP7WInRyVHXh0n/ORtoeiE1os+8qkSw==",
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
+    "node_modules/ms": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+    },
+    "node_modules/ws": {
+      "version": "8.11.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.11.0.tgz",
+      "integrity": "sha512-HPG3wQd9sNQoT9xHyNCXoDUa+Xw/VevmY9FoHyQ+g+rrMn4j6FB4np7Z0OhdTgjx6MgQLK7jwSy1YecU1+4Asg==",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": "^5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/xmlhttprequest-ssl": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-2.0.0.tgz",
+      "integrity": "sha512-QKxVRxiRACQcVuQEYFsI1hhkrMlrXHPegbbd1yn9UHOmRxY+si12nQYzri3vbzt8VdTTRviqcKxcyllFas5z2A==",
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    }
+  }
+}
--- a/examples/memory-usage/package.json
+++ b/examples/memory-usage/package.json
@@ -0,0 +1,10 @@
+{
+  "name": "memory-usage",
+  "version": "0.0.1",
+  "private": true,
+  "description": "",
+  "type": "module",
+  "dependencies": {
+    "engine.io-client": "^6.5.3"
+  }
+}
--- a/examples/memory-usage/server.js
+++ b/examples/memory-usage/server.js
@@ -0,0 +1,41 @@
+import { createServer } from "node:http";
+import { Server } from "../../build/engine.io.js";
+
+const EMIT_INTERVAL_MS = 10_000;
+const PACKETS_COUNT = 100;
+const PACKET_SIZE = 100;
+
+const httpServer = createServer();
+const engine = new Server();
+
+engine.attach(httpServer);
+
+const packets = [];
+
+for (let i = 0; i < PACKETS_COUNT; i++) {
+  packets.push("a".repeat(PACKET_SIZE));
+}
+
+setInterval(() => {
+  Object.keys(engine.clients).forEach((id) => {
+    const client = engine.clients[id];
+    packets.forEach((packet) => {
+      client.send(packet);
+    });
+  });
+}, EMIT_INTERVAL_MS);
+
+function formatSize(val) {
+  return Math.floor(val / 1024);
+}
+
+setInterval(() => {
+  const mem = process.memoryUsage();
+  console.log(
+    `${Math.floor(process.uptime())}; ${formatSize(mem.heapUsed)}; ${formatSize(
+      mem.heapTotal
+    )}`
+  );
+}, 1000);
+
+httpServer.listen(3000);