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TypeScript performance.timerify方法代碼示例

本文整理匯總了TypeScript中perf_hooks.performance.timerify方法的典型用法代碼示例。如果您正苦於以下問題:TypeScript performance.timerify方法的具體用法?TypeScript performance.timerify怎麽用?TypeScript performance.timerify使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在perf_hooks.performance的用法示例。


在下文中一共展示了performance.timerify方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的TypeScript代碼示例。

示例1: require

/*
----------------------
  Performance monitoring instrumentation code
  Will output the most expensive require resolutions to the console
  Usage: set `BP_DEBUG_REQUIRE` to `true`
------------------------
*/

if (global.process.env.BP_DEBUG_REQUIRE) {
  const { performance, PerformanceObserver } = require('perf_hooks')
  const os = require('os')

  const SAMPLING_INTERVAL = 5000
  const TOP_COUNT = 10

  Module.prototype.require = performance.timerify(Module.prototype.require)
  require = performance.timerify(require)

  let allRequires: { duration: Number; call: string }[] = []

  const obs = new PerformanceObserver(list => {
    const entries = list.getEntries()
    entries.forEach(e => allRequires.push({ duration: e.duration, call: e[0] }))
  })

  obs.observe({ entryTypes: ['function'], buffered: true })

  setInterval(() => {
    const significantCalls = _.take(_.orderBy(allRequires, 'duration', 'desc'), TOP_COUNT)
    const formattedCalls = significantCalls.map((x, i) => `${i}) ${x.duration}\t\t${x.call}`).join(os.EOL)
    console.log(formattedCalls)
開發者ID:seffalabdelaziz,項目名稱:botpress,代碼行數:31,代碼來源:rewire.ts


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