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Re: [minutes] 20101201 Web Performance Working Group

From: Zhiheng Wang <zhihengw@google.com>
Date: Wed, 1 Dec 2010 21:23:15 -0800
Message-ID: <AANLkTi=pyT7qCD39ke7HufdWU0V-rv6w_UcZ6y67Q4+c@mail.gmail.com>
To: Anderson Quach <Anderson.Quach@microsoft.com>
Cc: "public-web-perf@w3.org" <public-web-perf@w3.org>, Philippe Le Hegaret <plh@w3.org>
   The draft is updated.
  * added window.performance.handshakeStart as an optional attribute. So far
this attribute is pretty much SSL/TLS specific and it might make sense to
name it more appropriate like "tlsStart". It's a minor issue though.
  * corrected unloadEventStart/End definition
  * changed processing model accordingly

   Philippe, could you help publish it? Thanks!

cheers,
Zhiheng



 On Wed, Dec 1, 2010 at 11:45 AM, Anderson Quach <
Anderson.Quach@microsoft.com> wrote:

>  Web Performance Working Group Meeting #12 01 Dec 2010
>
> See also: IRC log <http://www.w3.org/2010/12/01-webperf-irc>
> Minutes
>
> http://www.w3.org/2010/12/01-webperf-minutes.html
> Attendees
>
> *Present *
>
> *[Microsoft], +1.650.253.aaaa, Zhiheng, Philippe, +1.650.704.aabb, James,
> AndersonQuach, Christian', ArvindJain *
>
> *Regrets *
>
> *JasonWeber *
>
> *Chair *
>
> *ArvindJain *
>
> *Scribe *
>
> *AndersonQuach *
> Contents
>
>    - Topics <http://www.w3.org/2010/12/01-webperf-minutes.html#agenda>
>       1. Feedback and results on the name-search for window.(performance |
>       webPerformance | pagePerformance).<http://www.w3.org/2010/12/01-webperf-minutes.html#item01>
>       2. Connect phase feedback, SSL Handshake and SOCKS authentication.<http://www.w3.org/2010/12/01-webperf-minutes.html#item02>
>       3. "Unload Event feedback."<http://www.w3.org/2010/12/01-webperf-minutes.html#item03>
>       4. Review a test case."<http://www.w3.org/2010/12/01-webperf-minutes.html#item04>
>       5. Resource timing.<http://www.w3.org/2010/12/01-webperf-minutes.html#item05>
>       6. Summary<http://www.w3.org/2010/12/01-webperf-minutes.html#item06>
>
> A.    [Decision] Closed in window.performance namespace, moving forward
> with the name for future extensibility due to the low risks outlined in this
> meeting.
>
> B.    [Decision] handShakeStart added as a new [optional] attribute with
> three states: undefined for those browsers that do not have insight to the
> network-stack, 0 value for non-ssl connections and a time-stamp for ssl
> connections. connectEnd will capture the full end-to-end time, including
> SOCKS and SSL handshake.
>
> C.    [Decision] unloadEventStart, unloadEventEnd to capture the start and
> end of the unload event handler. The unloadEventStart already captures the
> beginning of the document clean-up steps as outlined in
> http://dev.w3.org/html5/spec/history.html#unloading-documents. The goal is
> to provide actionable data to site developers.
>
> D.    Test cases should include: Title, Description / objective and clear
> pass / fail criteria.
>
> E.    Review offline and provide feedback for Resource Timing proposals as
> outlined in Jamesí summary email.
>
>
>  ------------------------------
>
> <*scribe*> scribe:AndersonQuach
>
> list the agenda
>
> *AndersonQuach:* query results returned, 0 hits with pagePerformance,
> however recommend performance due to low risks, alternatively webperformance
> also at zero hits.
>
> *Zhiheng:* want to discuss a read/write attribute rather than read-only.
>
> *NicJansma:* if we remove read-only, can we revert to the browser
> implementation.
>
> *Christian:* What is the adv. for read/write?
>
> *NicJansma:* Site compat, to reduce chances for sites throwing script
> errors?
>
> *Christian:* you can still get errors with the attribute being read/write?
>
> *plh:* making it read-write any application can modify it.
>
> *Zhiheng:* performance makes more sense to me.
> ... Let's move forward with performance, the risks seem to be low.
>
> *Feedback and results on the name-search for window.(performance |
> webPerformance | pagePerformance).*
>
> *Zhiheng:* Decision to continue to use window.performance.
>
> *Connect phase feedback, SSL Handshake and SOCKS authentication.*
>
> *Zhiheng:* I agree for connect to include end to end time, including tcp
> connection, socks and ssl.
>
> *AndersonQuach:* Let's not include SOCKS, does not pertain to the website.
>
> *Zhiheng:* may-level requirement to have handshakeEnd == connectEnd if SSL
> in the picture.
>
> *NicJansma:* Existence of the attribute may be confusing, if it does not
> work.
>
> *Zhiheng:* agreed, optional for the handshake phase for user agents that
> no insight to the network stack.
>
> *Christian:* better to be zero, if there is no handshake.
>
> *Zhiheng:* there are three values: undefined, 0 for no handshake, and
> value when there is a handshake.
> ... End of handshake would be connectEnd
>
> move to agendum 3
>
> *"Unload Event feedback."*
>
> http://dev.w3.org/html5/spec/history.html#unloading-documents
>
> *Zhiheng:* I'm okay with capturing it as the unload handler as site
> developers have the most control over this.
>
> move to agenda 4
>
> *Review a test case."*
>
> *AndersonQuach:* feedback, we should include: title of tests, description
> of tests, objective, and clear pass / fail criteria.
> ... would recommend that we pursue self-contained tests until we need a
> common infrastructure for testing async behavior and etc.
>
>
> http://test.w3.org/html/tests/approved/canvas/canvas_colorsandstyles_addcolorstop_001.htm
>
> *AndersonQuach:* this is a great start
>
> *NicJansma:* Thanks for taking the lead. We'll follow offline with the
> recommendations for details on the tests.
>
> *Resource timing.*
>
> *AndersonQuach:* James, thanks for summarizing.
>
> *NicJansma:* Is there a recommendation you have?
>
> *simonjam:* Yes, the first proposal, attaching to the simple event.
>
> *Summary*
>
> 1. Closed in window.performance namespace, moving forward with the name for
> future extensibility due to the low risks outlined in this meeting.
>
> 2. handShakeStart added as a new [optional] attribute with three states:
> undefined for those browsers that do not have insight to the network-stack,
> 0 value for non-ssl connections and a time-stamp for ssl connections.
> connectEnd will capture the full end-to-end time, including SOCKS and SSL
> handshake.
>
> 3. unloadEventStart, unloadEventEnd to capture the start and end of the
> unload event handler. The unloadEventStart already captures the beginning of
> the document clean-up steps as outlined in
> http://dev.w3.org/html5/spec/history.html#unloading-documents. The goal is
> to provide actionable data to site developers.
>
> 4. Test cases should include: Title, Description / objective and clear pass
> / fail criteria.
>
> 5. Review offline and provide feedback for Resource Timing proposals as
> outlined in Jamesí summary email.
>
>
>
Received on Thursday, 2 December 2010 05:23:48 GMT

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