压力测试指南：使用k6和JMeter进行系统极限与崩溃点测试
stress-testing by aj-geddes/useful-ai-prompts
安装命令
npx skills add https://github.com/aj-geddes/useful-ai-prompts --skill stress-testing🇨🇳中文介绍
压力测试
目录
- 概述
- 适用场景
- 快速开始
- 参考指南
- 最佳实践
概述
压力测试将系统推至超出正常操作容量的状态，以识别其崩溃点、故障模式和恢复行为。它验证系统在极端条件下的稳定性，并有助于确定在性能下降或故障发生前的最大容量。
适用场景
- 寻找系统容量极限
- 识别崩溃点
- 测试自动扩缩容行为
- 验证负载下的错误处理
- 测试故障后的恢复能力
- 规划容量需求
- 验证优雅降级
- 测试流量峰值处理能力
快速开始
最小工作示例：
// stress-test.js
import http from "k6/http";
import { check, sleep } from "k6";
import { Rate } from "k6/metrics";
const errorRate = new Rate("errors");
export const options = {
stages: [
// Stress testing: Progressive load increase
{ duration: "2m", target: 100 }, // Normal load
{ duration: "5m", target: 100 }, // Sustain normal
{ duration: "2m", target: 200 }, // Above normal
{ duration: "5m", target: 200 }, // Sustain above normal
{ duration: "2m", target: 300 }, // Breaking point approaching
{ duration: "5m", target: 300 }, // Sustain high load
{ duration: "2m", target: 400 }, // Beyond capacity
{ duration: "5m", target: 400 }, // System under stress
{ duration: "5m", target: 0 }, // Gradual recovery
],
thresholds: {
http_req_duration: ["p(99)<1000"], // 99% under 1s during stress
http_req_failed: ["rate<0.05"], // Allow 5% error rate under stress
errors: ["rate<0.1"],
},
// ... (see reference guides for full implementation)
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