JoeAllen
33d0ca10e7
向指定 broker 按速率发布指定大小的消息，用于复现/压测应用在 高频消息流下的 UI 性能。eventloop 独立任务持续 poll。 用法：cargo run --example flood -- <host> <port> <topic> <count> <per_second> [payload_bytes]
67 lines
2.5 KiB
Rust
67 lines
2.5 KiB
Rust
//! 消息流量压测工具：连接 broker 后按指定速率向主题发布消息。
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//!
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//! 用法：cargo run --example flood -- <host> <port> <topic> <count> <per_second> [payload_bytes]
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//! 例：向私有 broker 发 500 条 1KB 消息、每秒 50 条：
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//! cargo run --example flood -- mqtt.nex-i.cn 1883 mqttx-flood 500 50 1024
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use std::time::{Duration, Instant};
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fn main() {
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let args: Vec<String> = std::env::args().collect();
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if args.len() < 6 {
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eprintln!("usage: flood <host> <port> <topic> <count> <per_second> [payload_bytes]");
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std::process::exit(1);
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}
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let host = args[1].clone();
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let port: u16 = args[2].parse().unwrap();
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let topic = args[3].clone();
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let count: u64 = args[4].parse().unwrap();
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let per_second: u64 = args[5].parse().unwrap();
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let payload_size: usize = args.get(6).map(|s| s.parse().unwrap()).unwrap_or(512);
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let rt = tokio::runtime::Builder::new_multi_thread()
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.worker_threads(2)
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.enable_all()
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.build()
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.unwrap();
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rt.block_on(async move {
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let opts = rumqttc::MqttOptions::new(
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format!("mqttx_flood_{}", &uuid::Uuid::new_v4().simple().to_string()[..8]),
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rumqttc::Broker::tcp(&host, port),
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);
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let (client, mut eventloop) = rumqttc::AsyncClient::builder(opts).build();
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// eventloop 独立持续 poll：请求出队全靠它
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tokio::spawn(async move {
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loop {
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if eventloop.poll().await.is_err() {
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break;
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}
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}
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});
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let payload = vec![b'x'; payload_size];
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let interval = Duration::from_secs_f64(1.0 / per_second.max(1) as f64);
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let start = Instant::now();
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for i in 0..count {
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let topic_i = format!("{topic}/{i}");
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let options = rumqttc::PublishOptions::new(rumqttc::QoS::AtMostOnce);
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if let Err(e) = client.publish(&topic_i, payload.clone(), options).await {
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eprintln!("publish error at {i}: {e}");
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break;
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}
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let next = start + interval * (i as u32 + 1);
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let now = Instant::now();
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if next > now {
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tokio::time::sleep(next - now).await;
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}
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}
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eprintln!(
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"flooded {count} msgs ({payload_size}B each) in {:.1}s",
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start.elapsed().as_secs_f64()
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);
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// 等网络冲刷
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tokio::time::sleep(Duration::from_secs(3)).await;
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});
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}
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