What is the meaning of the line and line for each request in the "Network" section of the "Performance" panel?

Question

In the Network section of the Chrome DevTools Performance panel (Chrome 59), each request has a row and a row. For example, look at ados.jsthe screenshot below.

Here is the time interval for ados.js.

How do these two representations compare with each other?

Answer 1

• The left line is everything up to Initial connection(inclusive).
• The light part of the panel Request sentand Waiting (TTFB).
• The dark part of the panel Content Download.
• - , . .

: https://developers.google.com/web/tools/chrome-devtools/evaluate-performance/reference#network

P.S. , "" "": https://crbug.com/703335