[webkit-dev] Adding archive.org-based page loading time performance tests

Ryosuke Niwa rniwa at webkit.org
Fri Jul 27 00:23:44 PDT 2012


I have made some progress in the last couple of months, and you can now
play with it on your machine using Mac port or Chromium port on Mac or
Linux. Follow instructions on

Note: it has been found that *it doesn't run on a Google-issued Mac* due to
some network setting issues (DRT simply ignores proxy setting you set
regardless of whether you're on the corporate network or not).

- Ryosuke

On Mon, Apr 16, 2012 at 1:42 AM, Ryosuke Niwa <rniwa at webkit.org> wrote:

> *Summary*
> I propose to add a new page load time performance test suite that loads
> pages on archive.org.
> *Problem*
> Google's page cycler and Apple's PLT test suites are both private due to
> copyright restrictions, and people outside of these two organizations
> cannot see the contents. This severely limits the utility and the
> effectiveness of these test suites because not all contributors can run
> them locally. We need a publicly distributable version of these two test
> suites.
> *Proposal*
> We can measure the performance metrics on the snapshots of popular
> websites at a specific date and time on archive.org. Because archive.orgwill give us the same snapshot each time for given a URL, our test suite
> only need to store a list of URLs. It eliminates the need for distributing
> the page contents with the suite and still allows all contributors to
> obtain the same test page when running the test suite. In order to avoid
> DoS'ing archive.org, we can use web-page-replay:
> http://code.google.com/p/web-page-replay/ to create persistent cache.
> Credit for this novel idea: Greg Simon.
> I have posted a work in progress patch on
> https://bugs.webkit.org/show_bug.cgi?id=84008. In addition, I have
> notified the Internet Archive of the proposed plan on April 12th but I
> haven't received any responses yet.
> Best,
> Ryosuke Niwa
> Software Engineer
> Google Inc.
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