Rust与Locust集成实例
Rust与Locust的集成通常涉及使用Rust编写高性能的负载测试逻辑，并通过Locust框架进行分布式测试和结果分析，实际应用场景的示例。
基础HTTP请求测试
使用Rust编写HTTP请求逻辑，通过Locust模拟高并发场景：
use reqwest::blocking::Client;
pub fn make_http_request(url: &str) -> Result<(), reqwest::Error> {
let client = Client::new();
let response = client.get(url).send()?;
println!("Status: {}", response.status());
Ok(())
}
Locust任务文件中调用Rust函数：
from locust import HttpUser, task
import subprocess
class RustHttpUser(HttpUser):
@task
def call_rust_request(self):
subprocess.run(["./target/release/rust_http", "http://example.com"])
高性能计算任务
Rust实现计算密集型任务，Locust协调测试：
pub fn calculate_primes(n: usize) -> Vec<usize> {
let mut primes = vec![true; n+1];
primes[0] = false;
primes[1] = false;
for i in 2..=n {
if primes[i] {
for j in (i*i..=n).step_by(i) {
primes[j] = false
}
}
}
primes.iter().enumerate()
.filter_map(|(i, &is_prime)| if is_prime { Some(i) } else { None })
.collect()
}
数据库压力测试
Rust处理数据库操作，Locust模拟用户行为：
use sqlx::postgres::PgPool;
pub async fn db_query(pool: &PgPool) -> Result<(), sqlx::Error> {
let row: (i64,) = sqlx::query_as("SELECT $1")
.bind(150_i64)
.fetch_one(pool)
.await?;
println!("Result: {}", row.0);
Ok(())
}
WebSocket连接测试
Rust实现WebSocket客户端，Locust控制测试流程：
use tokio_tungstenite::connect_async;
use url::Url;
pub async fn ws_connect(uri: &str) -> Result<(), Box<dyn std::error::Error>> {
let (ws_stream, _) = connect_async(Url::parse(uri)?).await?;
let (_, mut receiver) = ws_stream.split();
while let Some(msg) = receiver.next().await {
println!("Received: {:?}", msg?);
}
Ok(())
}
文件IO压力测试
Rust处理文件操作，Locust模拟多用户场景：
use std::fs::File;
use std::io::Write;
pub fn file_io_test(filename: &str) -> std::io::Result<()> {
let mut file = File::create(filename)?;
for i in 0..1000 {
writeln!(file, "Line {}", i)?;
}
Ok(())
}
gRPC服务测试
Rust实现gRPC客户端，Locust进行负载测试：
use tonic::Request;
pub async fn grpc_call(
client: &mut greeter_client::GreeterClient<tonic::transport::Channel>,
name: &str
) -> Result<(), tonic::Status> {
let request = Request::new(greeter::HelloRequest {
name: name.to_string(),
});
let response = client.say_hello(request).await?;
println!("RESPONSE={:?}", response);
Ok(())
}
消息队列测试
Rust连接RabbitMQ/Kafka，Locust控制消息发送频率：
use lapin::{Connection, ConnectionProperties};
pub async fn mq_test(amqp_url: &str) -> Result<(), Box<dyn std::error::Error>> {
let conn = Connection::connect(amqp_url, ConnectionProperties::default()).await?;
let channel = conn.create_channel().await?;
channel.queue_declare("hello", Default::default(), Default::default()).await?;
Ok(())
}
加密解密性能测试
Rust实现加密算法，Locust测量不同负载下的性能：
use aes::Aes256;
use block_modes::{BlockMode, Cbc};
use block_modes::block_padding::Pkcs7;
type Aes256Cbc = Cbc<Aes256, Pkcs7>;
pub fn encrypt_data(key: &[u8], iv: &[u8], data: &[u8]) -> Vec<u8> {
let cipher = Aes256Cbc::new_from_slices(key, iv).unwrap();
cipher.encrypt_vec(data)
}
图像处理测试
Rust执行图像处理，Locust模拟多用户上传：
use image::{DynamicImage, ImageBuffer};
pub fn process_image(img: DynamicImage) -> ImageBuffer<image::Rgba<u8>, Vec<u8>> {
img.blur(5.0)
.adjust_contrast(30.0)
.brighten(10)
.to_rgba8()
}
机器学习推理测试
Rust加载模型进行推理，Locust模拟API请求：
use tract_onnx::prelude::*;
pub async fn model_inference(model_path: &str, input: Tensor) -> Result<Tensor, tract_onnx::tract_core::anyhow::Error> {
let model = tract_onnx::onnx()
.model_for_path(model_path)?
.into_optimized()?
.into_runnable()?;
model.run(tvec!(input))
}
自定义协议测试
Rust实现专有协议客户端，Locust进行协议测试：
pub struct CustomProtocol {
version: u8,
payload: Vec<u8>,
}
impl CustomProtocol {
pub fn serialize(&self) -> Vec<u8> {
let mut buf = Vec::new();
buf.push(self.version);
buf.extend_from_slice(&(self.payload.len() as u32).to_be_bytes());
buf.extend_from_slice(&self.payload);
buf
}
}
缓存性能测试
Rust操作Redis缓存，Locust模拟缓存访问模式：
use redis::Commands;
pub fn cache_ops(conn: &mut redis::Connection, key: &str, value: &str) -> redis::RedisResult<()> {
conn.set(key, value)?;
let _: String = conn.get(key)?;
conn.expire(key, 60)?;
Ok(())
}
地理位置计算测试
Rust处理地理空间计算，Locust模拟位置服务请求：
use geo::algorithm::haversine_distance::HaversineDistance;
pub fn calculate_distance(lat1: f64, lon1: f64, lat2: f64, lon2: f64) -> f64 {
let point1 = geo::Point::new(lon1, lat1);
let point2 = geo::Point::new(lon2, lat2);
point1.haversine_distance(&point2)
}
正则表达式性能测试
Rust执行复杂正则匹配，Locust提供不同测试用例：
use regex::Regex;
pub fn regex_match(text: &str, pattern: &str) -> bool {
let re = Regex::new(pattern).unwrap();
re.is_match(text)
}
时间序列数据处理
Rust处理时序数据，Locust模拟数据采集场景：
use chrono::{DateTime, Utc};
pub struct TimeSeriesPoint {
timestamp: DateTime<Utc>,
value: f64,
}
pub fn process_timeseries(data: Vec<TimeSeriesPoint>) -> Vec<f64> {
data.windows(2)
.map(|w| (w[1].value - w[0].value) /
(w[1].timestamp - w[0].timestamp).num_seconds() as f64)
.collect()
}
压缩算法测试
Rust实现压缩解压，Locust测试不同数据规模：
use flate2::write::GzEncoder;
use flate2::Compression;
pub fn compress_data(data: &[u8]) -> Vec<u8> {
let mut encoder = GzEncoder::new(Vec::new(), Compression::default());
encoder.write_all(data).unwrap();
encoder.finish().unwrap()
}
并发数据结构测试
Rust测试并发数据结构性能，Locust协调测试流程：
use std::sync::Arc;
use dashmap::DashMap;
pub fn concurrent_map_test(map: Arc<DashMap<String, String>>, key: String, value: String) {
map.insert(key, value);
}
网络协议模糊测试
Rust生成测试用例，Locust执行模糊测试：
use rand::Rng;
pub fn generate_fuzz_input() -> Vec<u8> {
let mut rng = rand::thread_rng();
let len = rng.gen_range(1..1024);
(0..len).map(|_| rng.gen()).collect()
}
区块链相关测试
Rust处理区块链交易，Locust模拟网络负载：
use secp256k1::{Secp256k1, Message};
use secp256k1::hashes::sha256;
pub fn sign_transaction(privkey: &[u8], message: &[u8]) -> [u8; 64] {