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Issue 669080 link

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Issue metadata

Status: Fixed
Owner:
Closed: Dec 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 3
Type: Bug

Blocking:
issue 665029



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Record prefilter bytes received from network/cache/total

Project Member Reported by jkarlin@chromium.org, Nov 28 2016

Issue description

In order to understand the impact of the HTTP Cache, it's important to understand the network bytes it saves relative to total bytes.

As such, record new UMA for per-request bytes received, bytes received from cache, and bytes received from network. The sums of these metrics can be used to understand the network savings of the cache.
 
Status: Started (was: Assigned)
Summary: Record prefilter bytes received from network/cache/total (was: Record on-the-wire bytes received from network/cache/total)
Project Member

Comment 2 by bugdroid1@chromium.org, Dec 5 2016

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ded0021b702cda78f59fb92826f2ae51040e3d44

commit ded0021b702cda78f59fb92826f2ae51040e3d44
Author: jkarlin <jkarlin@chromium.org>
Date: Mon Dec 05 16:01:06 2016

[HttpJob] Record bytes read for requests

This lets us see what request sizes look like over time and the percentage of bytes that come from the cache as opposed to the network.

BUG= 669080 

Review-Url: https://codereview.chromium.org/2548613003
Cr-Commit-Position: refs/heads/master@{#436302}

[modify] https://crrev.com/ded0021b702cda78f59fb92826f2ae51040e3d44/net/url_request/url_request_http_job.cc
[modify] https://crrev.com/ded0021b702cda78f59fb92826f2ae51040e3d44/tools/metrics/histograms/histograms.xml

Status: Fixed (was: Started)

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