chrome-filesystem-timing
Read the blog post: https://blog.jse.li/posts/chrome-76-incognito-filesystem-timing/
Run the demo: https://jse.li/chrome-filesystem-timing/
Copy the spreadsheet: https://docs.google.com/spreadsheets/d/13IOGwZhq566ara3cTBWnZHu3nDawYcALZ8Jd9Whj6RM/edit?usp=sharing