Content-Download in Network Timing possibly is wrong
Reported by
mora...@gmail.com,
Mar 26 2018
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36 Steps to reproduce the problem: 1. Open DevTools > Network 2. Open https://sbis.ru/tariffs?tab=ereport 3. Look at waterfall on network tab 4. Do same in Firefox/Safari/Fiddle What is the expected behavior? We have nearly the same content-download time for all resources What went wrong? Content-Download time for Chrome is much bigger Did this work before? N/A Chrome version: 64.0.3282.186 Channel: n/a OS Version: 6.1 (Windows 7, Windows Server 2008 R2) Flash Version: I can guess after some investigation that are different factors that affects content-download time: 1. http2 priority 2. slow disc cache reading/writing 3. heavy js code
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Mar 27 2018
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Apr 19 2018
I have tried comparing Chrome DevTools (Chrome 68) against Firefox and did not find any evidence of Chrome being clearly slower then FF. I saw large differences that went both ways - likely caused by network.
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Apr 20 2018
Chrome is not slower then Fx. Content-Download times are different in Chrome and in Fx for the same request, that's the problem. I've just opened the same page with both browsers as an example. Pls, look at both screenshots in attachment. |
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Comment 1 by viswa.karala@chromium.org
, Mar 27 2018