Re: Minutes [was: Re: [3/1/17] webperf group call @ 10AM PST]

On Thu, Mar 2, 2017 at 8:16 AM, Xiaoqian Wu <xiaoqian@w3.org> wrote:

> Hi,
>
> The minutes of this week's webperf group call are available:
> https://www.w3.org/2017/03/01-webperf-minutes.html
>
> Next call will be 3/22/2017.
>
> Plain text version:
> ==============
>
> Using User Timing at scale
>
> Dan: working on React.. CDT integration was great
> … there is no way for a library to tell if user is recording or not, we're
> afraid of wasting memory
> … we're calling clearmarks/measures all the time, but it means we can't
> harvest it later
> … our main target is CDT
> … i.e. in dev mode
> an example -> https://‌facebook.github.io/‌react/‌docs/‌optimizing-
> performance.html#profiling-components-with-chrome-timeline
> a) sounds like there is a need for API in devtools for in "record mode"
> b) you should log some data to performance timeline.. perhaps with
> lower fidelity
> Nic: we monitor React today, we look at routechange events
> Dan: we expose UT for every component in dev mode
> Beacon: Enforce payload limits via Fetch API
>
> Enforce payload limits via Fetch API: https://‌github.com/‌w3c/‌
> beacon/‌pull/‌39
> https://‌github.com/‌w3c/‌web-platform-tests/‌pull/‌4024
> Performance Timeline: issues#66
>
> timeline: https://‌github.com/‌w3c/‌performance-timeline/‌issues/‌66
> Q: is this L2 or L3 feature?
> we'll revisit next time.
> Navigation Timing: Set `name` to document address
>
> Set `name` to document address: https://‌github.com/‌
> w3c/‌navigation-timing/‌pull/‌61
> shipping in M57 in Chrome, stable ~mid march
> we'll pause landing it until we have confidence in it
>
Could you clarify "pause landing it"? Do we need to rollback the change in
M57 (probably bit late)?


> Administrative stuff
>
> next: charter update
> Todd: we need/want charter update from MSFT end
> … I'll review and merge, first pass looks good
> we'll followup with plh@ on next steps
> https://‌github.com/‌w3c/‌page-visibility/‌issues/‌25#
> issuecomment-262263862
> xiaoqian: we probably need a test for prerender.
> AI: let's start a new issue on the repo
> we'll wait for PR until we resolve ^
> https://‌github.com/‌w3c/‌hr-time/‌issues/‌32
> Todd: there are tests in the WPT tree that require user input
> https://‌github.com/‌w3c/‌resource-timing/‌issues/‌92#
> issuecomment-283204910
> L2 CR for UT: https://‌github.com/‌w3c/‌user-timing/‌issues/‌19
> Todd: I'll try to get the updated tests.
> We'll try to triage UT2 issues before next call
> next call: March 22nd
>
> ==============
>
> On 1 Mar 2017, at 7:59 AM, Ilya Grigorik <igrigorik@google.com> wrote:
>
> Hangout: https://hangouts.google.com/hangouts/_/chromium.org/webperf-wg
>
> --- Agenda:
>
>    - *Using User Timing at scale *-- Dan Abramov
>
>    - *Beacon*
>       - Enforce payload limits via Fetch API:
>       https://github.com/w3c/beacon/pull/39
>       <https://github.com/w3c/beacon/pull/39>
>       - Updates to webplatform tests
>
>       - *Performance Timeline*
>       - Feature detection note: https://github.com/w3c/
>       performance-timeline/pull/70
>       - Should we tackle takeRecords as part of L2? See
>       https://github.com/w3c/performance-timeline/issues/66
>       <https://github.com/w3c/performance-timeline/issues/66>
>
>       - *Navigation Timing*
>       - Set `name` to document address: https://github.com/
>       w3c/navigation-timing/pull/61
>
>
>    - *Administrative stuff*
>       - Charter update: https://github.com/w3c/charter-webperf/pull/34
>       - Adopt Long Tasks, Server Timing?
>       - Move Page Visibility L2 to PR?
>          - See https://github.com/w3c/page-visibility/issues/25#
>          issuecomment-262263862
>       - Move HR-Time L2 to PR?
>          - One missing test: https://github.com/w3c/hr-time/issues
>       - Missing TAO test is blocking RT L1..
>          - https://github.com/w3c/resource-timing/issues/92
>
>
>