Usage:

Record the profile:

  d8 --prof your-file.js
  

Then process the file (this resolves C++ symbols and produces a JSON file with the profile data):

  <v8-dir>/tools/linux-tick-processor --preprocess v8.log > v8.json
  

To view the profile, click the Choose file button above and choose the file in the dialog box.

Attribution: Top-level tree buckets: Sort by:

Time (incl)	% of parent	Own time	Function/category	Ticks	Own ticks