George Lambert
c83f1c6717
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Compares r=1 vs r=3, file vs memory, reconnect tax, and projects three HP DL360 Gen10 NVMe + 10GbE boxes. Keep NATS; do not switch to MQTT/UDP.
33 lines
1,003 B
JavaScript
Executable file
33 lines
1,003 B
JavaScript
Executable file
#!/usr/bin/env node
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/** MQTT QoS0 publish rate against nats-server MQTT gateway. */
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import mqtt from "mqtt";
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const url = process.argv[2] || "mqtt://10.10.10.21:1883";
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const count = Number(process.argv[3] || 5000);
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const size = Number(process.argv[4] || 128);
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const payload = Buffer.alloc(size, 9);
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const topic = `bench/mqtt/${process.pid}`;
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const c = mqtt.connect(url, { reconnectPeriod: 0, connectTimeout: 5000 });
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await new Promise((res, rej) => {
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c.on("connect", res);
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c.on("error", rej);
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});
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const t0 = process.hrtime.bigint();
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for (let i = 0; i < count; i++) {
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await new Promise((res, rej) => c.publish(topic, payload, { qos: 0 }, (err) => (err ? rej(err) : res())));
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}
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const ns = Number(process.hrtime.bigint() - t0);
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c.end(true);
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const sec = ns / 1e9;
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console.log(
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JSON.stringify({
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mode: "mqtt-qos0",
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count,
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size,
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url,
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secs: Number(sec.toFixed(3)),
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pubs_per_sec: Math.round(count / sec),
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mb_per_sec: Number(((count * size) / sec / 1e6).toFixed(2)),
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}),
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);
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