performanceNodeTiming.uvMetricsInfo

• 返回：<Object>

  ¥Returns: <Object>

  • loopCount <number> 事件循环迭代次数。

    ¥loopCount <number> Number of event loop iterations.

  • events <number> 事件处理程序已处理的事件数。

    ¥events <number> Number of events that have been processed by the event handler.

  • eventsWaiting <number> 调用事件提供程序时等待处理的事件数。

    ¥eventsWaiting <number> Number of events that were waiting to be processed when the event provider was called.

这是 uv_metrics_info 函数的封装器。它返回当前的事件循环指标集。

¥This is a wrapper to the uv_metrics_info function. It returns the current set of event loop metrics.

建议在使用 setImmediate 安排执行的函数中使用此属性，以避免在完成当前循环迭代期间安排的所有操作之前收集指标。

¥It is recommended to use this property inside a function whose execution was scheduled using setImmediate to avoid collecting metrics before finishing all operations scheduled during the current loop iteration.

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

setImmediate(() => {
  console.log(performance.nodeTiming.uvMetricsInfo);
});import { performance } from 'node:perf_hooks';

setImmediate(() => {
  console.log(performance.nodeTiming.uvMetricsInfo);
});拷贝