# Profiling in Chrome Developer Tools

- Published: 2016-01-04
- URL: https://notes.webutvikling.org/profiling-javascript-in-chrome-developer-tools
- Tags: chrome, devtools, javascript, profiling

1.  Open devtools
2.  Select **Profiles**
3.  Select **Collect JavaScript CPU Profile**
4.  Click **Start**
5.  Do the (typically slow) things you wish to record
6.  Click **Stop**

You now got a table of functions, and CPU time they consumed. On the right hand side of the table, you got a link to the js file and its line number of the function that is responsible for this. You can click them to open the files in the Sources tab.

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Check out this chapter in CodeSchools awesome Devtools lesson for more on this topic: [http://discover-devtools.codeschool.com/chapters/6/](http://discover-devtools.codeschool.com/chapters/6/)