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Issue metadata

Status: Archived
Owner:
Closed: Oct 23
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: All
Pri: 3
Type: Bug



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DNS pre-resolver in net/ should be disabled for HTTP resources when data saver is enabled

Project Member Reported by tbansal@chromium.org, Nov 18 2016

Issue description

Currently, the DNS pre-resolver in net/predictor.cc triggers pre-resolution of hostnames. The pre-resolution happens while the page is loading, and helps speed up connecting to the web servers when a resource is fetched later during the pageload.

However, for users that have data saver enabled, the HTTP resources are fetched via data saver proxy, and so there is no need for pre-resolving the hostnames that correspond to the HTTP resources.

DNS pre-resolver for HTTP resources should be disabled for users that have data saver on. This would help in reducing the bytes on the wire.
 
Owner: ----
Status: Untriaged (was: Assigned)

Comment 2 by bengr@chromium.org, Feb 13 2017

Owner: tbansal@chromium.org
Status: Assigned (was: Untriaged)
What about the less common case where the resource can't be served via proxy, e.g., when the proxy issues a bypass message? I think this is probably a good idea, but we should run an experiment to be sure.
Yes, this should be done via the experiment.
Cc: tbansal@chromium.org
Owner: ----
Status: Available (was: Assigned)
Owner: tbansal@chromium.org
Status: Started (was: Available)
Owner: ----
Status: Available (was: Started)

Comment 7 by bengr@chromium.org, Feb 7 2018

Refreshed during triage.
If somebody wants to take it over, here is the CL to start with:
https://chromium-review.googlesource.com/c/chromium/src/+/828051
Refreshed during triage.

Comment 10 by bengr@chromium.org, Jun 22 2018

Cc: -tbansal@chromium.org
Owner: tbansal@chromium.org
Status: Started (was: Available)
Labels: -Pri-3 M-70 Pri-2
Refreshed during triage.

Comment 13 Deleted

Labels: -M-72
Status: Archived (was: Started)
Archiving since I have no plans of doing it in the near future.

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