IE8 Developer Tools JScript Profiler

The recently released Beta 2 of Internet Explorer 8 contains a lot of improvements which are aimed at making developing web applications on Internet Explorer 8 easier and more productive. One of these improvements is the JScript Profiler in Developer Tools, which provides critical JScript related performance data to a web developer that helps identify […]

The recently released Beta 2 of Internet Explorer 8 contains a lot of improvements which are aimed at making developing web applications on Internet Explorer 8 easier and more productive. One of these improvements is the JScript Profiler in Developer Tools, which provides critical JScript related performance data to a web developer that helps identify and fix performance related issues. We believe the Profiler is going to be a very helpful tool to fine tune the performance of the scripts in a web application. It is lightweight, easy-to-use and provides the following features:

  • Provides performance data for JScript functions in two views:
    • Functions View – a flat listing of all the functions
    • Call Tree view – a hierarchical listing of the functions based on the call flow
  • Supports exporting the data to a file
  • Provides an inferred name for anonymous functions
  • Profiles built-in JScript functions
  • Supports multiple profile reports
  • Supports profiling across page navigation and refreshes

Launch the Developer Tools in Internet Explorer 8 either by pressing F12 or selecting ‘Developer Tools’ from the Tools dropdown on the command bar. Switch to the Profiler Tab, and you can see the new Script Profiler. Click the ‘Start Profiling’ button to begin a new profiling session.

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