示例

🌐 Example

import { PerformanceObserver } from 'node:perf_hooks';

const obs = new PerformanceObserver((list) => {
  for (const entry of list.getEntries()) {
    console.log(`${entry.name}: ${entry.duration.toFixed(1)}ms`);
    if (entry.name === 'QuicSession') {
      const { stats, handshake } = entry.detail;
      console.log(`  protocol: ${handshake?.protocol}`);
      console.log(`  bytes sent: ${stats.bytesSent}`);
      console.log(`  smoothed RTT: ${stats.smoothedRtt}ns`);
    }
  }
});
obs.observe({ entryTypes: ['quic'] }); 拷贝