Understanding process breakdown

[teched]

Dear community,

I need your help to have a better understaing of what process breakdown categories means.

I would like to have a link to documentation or at least a summary of these categories:

• Scripting
• Rendering
• Loading
• Painting
  

And these events:

• Program
• Function Call
• Layout
• Evaluate Script
• Recalculate Styles
• CompositeLayers
• ResourceReceiversData
• Paint
• GCEvent
• Timefire
• PaintSetup
• EventDispatch
  

Thank you all in advance for answering.

TechED

[pmeenan]

Those are just a breakdown of the Chrome Timeline. The dev tools docs are probably your best resource for that: https://developers.google.com/chrome-dev...s/timeline

[LordTaco]

Hi Webpagetest Team, I have found some differences between the results shown in the timeline view and the ones given directly on the Chrome Dev Tools. I understand the Breakdown timeline may not show all the detail information, but 1. why is the "Composite Layout" task not appearing like the scripting, rendering and paint tasks? Furthermore, 2. I have noticed that above a "click" event task there is always a "Animation Frame Fired" task. When i record the same event directly on Chrome dev tools this task does not appear(at least not over the "click" event task).

Here the timeline example:
http://www.webpagetest.org/chrome/inspec...:1,c:0,s:2
Here the full test:
http://www.webpagetest.org/result/180827...a92404075/

Thanks a lot!!