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Issue 725119 link

Starred by 1 user
Status: Fixed
Owner:
tbansal@chromium.org
Closed: May 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: All
Pri: 3
Type: Bug

Blocking:
issue 672334



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Enabling warmup URL for data reduction proxy causes QUIC to lose race more often

Project Member Reported by tbansal@chromium.org, May 22 2017 
Chrome is currently experimenting with fetching a warmup URL for data reduction proxy. Looking at initial results (http://shortn/_aPnyhIored), warming up the connection reduces the TTFCP by 3.5% on 95th percentile. 

However, doing so also reduces the percentage of times QUIC wins the race against HTTP2. This in turn, reduces the percentage of resources that are fetched over QUIC (vs. HTTP2). We should investigate why using the warmup URL reduces the chances of QUIC winning the race.
Project Member

Comment 1 by bugdroid1@chromium.org, May 22 2017 

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3374eeb70e0834cffcf3a9723e8a67042ded551b

commit 3374eeb70e0834cffcf3a9723e8a67042ded551b
Author: tbansal <tbansal@chromium.org>
Date: Mon May 22 17:55:49 2017

Allow data reduction proxy (DRP) warmup URL fetch to use cookies

This allows the sessions setup for fetching the warmup URL to be
reused for fetching the user initiated requests.

Currently, with cookies disabled, the warmup URL is fetched over a
connection that has privacy mode enabled. This prevents the connection
to be reused for fetching the user initiated requests later.

BUG= 725119 

Review-Url: https://codereview.chromium.org/2897813002
Cr-Commit-Position: refs/heads/master@{#473618}

[modify] https://crrev.com/3374eeb70e0834cffcf3a9723e8a67042ded551b/components/data_reduction_proxy/core/browser/data_reduction_proxy_config.cc

Comment 2 by tbansal@chromium.org, May 22 2017

Labels: M-60
Status: Fixed (was: Started)
►

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