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Re: [agenda] Web Performance WG Teleconference #32 Agenda 2011-05-11

From: Zhiheng Wang <zhihengw@google.com>
Date: Wed, 11 May 2011 11:49:09 -0700
Message-ID: <BANLkTimLAsBuMbnPCcUQm_3twA+4XHd=HA@mail.gmail.com>
To: Jatinder Mann <jmann@microsoft.com>
Cc: "public-web-perf@w3.org" <public-web-perf@w3.org>
   Thanks for updating the ResourceTiming, Jatinder. Here are some of my
thoughts on it so far:

* In 4.2 "Downloadable resources that are retrieved from the user agent's
cache must be included in the PerformanceResourceTiming interface."
    which seems contradict with the first example.

* SVG element is in the initiator type but not the overview of 4.1

* In 4.3, We need more clarification about the accessing model about
directStart and redirectEnd. Just one idea here:
  - if all the document during the redirect have the same origin as the
current document, i.e., the origin of the script that is accessing the
timing info, redirectStart/End should be available.
  - if above is not true, and if the domains of all the documents during the
redirect is "whitelisted" by the Timing-Allow-Origin header,
redirectStart/End should be available.
    (We can probably make this more specific but it might be too complicated
for some.)
  - o/w redirectStart/End should be zero.

  The current processing model seems to suggest that the origin comparison
is between two consecutive documents but not against the
origin of the accessing script.

* Am I the only one feeling weird that, in case of a x-origin access, only
resourceFetchStart and fetchStart are non-zero?

cheers,
Zhiheng


On Tue, May 10, 2011 at 11:01 AM, Jatinder Mann <jmann@microsoft.com> wrote:

>  Below is the proposed agenda for Wednesday’s meeting.
>
>
>
> Zakim Bridge Numbers:
> +1.617.761.6200, +33.4.26.46.79.03 and +44.203.318.0479.
> Passcode 97373 (WPERF)
>
> IRC channel #webperf on irc.w3.org:6665   http://irc.w3.org/
>
> Teleconference Time and Length (120min): 4-6PM EST/1-3PM PST
>
>
>
> Navigation Timing, Resource Timing and User Timing (4-5PM EST/1-2PM PST)
>
> 1.       Feedback and discussion on Resource Timing.
>
> 2.       Feedback and discussion on User Timing.
>
> 3.       Any other business.
>
>
>
> Page Visibility, Efficient Script Yielding, Display Paint Notifications
> (4-5PM EST/2-3PM PST)
>
> 1.       Feedback and discussion on Page Visibility.
>
> 2.       Feedback and discussion on requestAnimationFrame.
>
> 3.       Any other business.
>
>
>
> Thanks,
>
> Jatinder
>
Received on Wednesday, 11 May 2011 18:49:35 GMT

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