Devtools Profiles Json file data format?

[Kyle Luo]

Hi, all, Is there any document for the json format for saved Profile data? In the Profiles tab, I can load a pre-saved profile data, and load a json-formated data file. I want to generate profile datas myself and view it in the Profile page, how can I achieve this goal？

Any help would be great! Thanks in advance!

[Josh Gavant]

I think it's the same as the Chrome Tracing Format: https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU

[Alexei Filippov]

Are we talking about CPU profile format? Right?

It is JSON format based on the DevTools debugger protocol for Profiler domain. See 

https://chromedevtools.github.io/debugger-protocol-viewer/1-2/Profiler/#type-Profile

P.S. It is not related to Chrome Tracing.

[Patrick McFarlane]

For the CPU Profiles we have saved this is the closest thing I could find to a JSON format document. It contains references to things like timeDeltas, callFrame, positionTicks - https://chromium.googlesource.com/v8/v8/+/master/src/inspector/js_protocol.json

Patrick