使用CDF进行SLO监控 | Node.js API 文档

🌐 SLO monitoring with CDF

const { createHistogram } = require('node:perf_hooks');

const latency = createHistogram();

// Record request latencies (in nanoseconds)...

// "What fraction of requests complete within 100ms?"
const withinSLO = latency.cdf(100_000_000);
console.log(`${(withinSLO * 100).toFixed(1)}% of requests within SLO`);

// "What fraction of requests exceed 500ms?"
const violating = latency.ccdf(500_000_000);
console.log(`${(violating * 100).toFixed(1)}% of requests violating SLO`);