Hi Ryosuke, Simon,
Have the raised concerns been addressed now, given the document shared
by Nicolás and github issue discussions? I would like to avoid bitrot
for my prototype :)
Regards,
Rob.
Am 30.09.20 um 00:10 schrieb Nicolás Peña Moreno:
I've written a doc to explain our perspective on the use-cases of
these two APIs:
https://docs.google.com/document/d/1UrPQD0lOhHKgQy1oy1Cs0F9AsBb83q_bx8cAvu_sKrI
<https://docs.google.com/document/d/1UrPQD0lOhHKgQy1oy1Cs0F9AsBb83q_bx8cAvu_sKrI>.
On Tue, Sep 29, 2020 at 5:16 PM Yoav Weiss <y...@yoav.ws
<mailto:y...@yoav.ws>> wrote:
+Nicolás Peña <mailto:n...@chromium.org>
On Sun, Aug 9, 2020 at 5:40 AM Ryosuke Niwa <rn...@webkit.org
<mailto:rn...@webkit.org>> wrote:
On Fri, Aug 7, 2020 at 2:09 PM Rob Buis <rb...@igalia.com
<mailto:rb...@igalia.com>> wrote:
>
> I was not aware of Long Tasks API. However it seems to have
a slightly
> different focus (task vs. input events). Also I am mostly
interested in
> First Input Delay, and it was decided some time ago to not
put it in
> Long Tasks API (see
>
https://docs.google.com/document/d/1bYMLTkjcyOZR5Jt3vrulzMSoS32zOFtwyH33f6hW_C8/edit#
<https://docs.google.com/document/d/1bYMLTkjcyOZR5Jt3vrulzMSoS32zOFtwyH33f6hW_C8/edit#>).
The concern still withstands. We don't have dozens of slightly
different APIs that websites need to track for junks & delays
during
user interactions.
It's also unclear how this first input delay works with a
single page
app which may have multiple transitions after a single page
load from
the browser engine's perspective. There had been some discussions
about this in the past in Web Perf WG but I don't think we've
come to
any conclusion about it.
In general, I'm hesitant to have any of these APIs implemented in
WebKit without figuring out more coherent picture of how
they'd all
fit together to address underlying use cases.
- R. Niwa
> On 06.08.20 20:07, Simon Fraser wrote:
> > Our feedback is that this API seems reasonable, but that
there's overlap with the "long tasks" API,
> > and it's not clear if we need both.
> >
> > Simon
> >
> >> On Aug 6, 2020, at 10:43 AM, Rob Buis <rb...@igalia.com
<mailto:rb...@igalia.com>> wrote:
> >>
> >> Hi Webkit-Dev,
> >>
> >> I would like to get an official position from Webkit on
the Event Timing Web Perf API.
> >> Besides providing information about input event latency
it can be used to obtain
> >> First Input Timing metrics. This specification builds on
the Performance Timeline
> >> specification, which is implemented in Webkit. Chrome has
implemented the Event
> >> Timing API, see the chrome status entry below.
> >>
> >> - Specification: https://wicg.github.io/event-timing/
<https://wicg.github.io/event-timing/>
> >> - Explainer: https://github.com/WICG/event-timing
<https://github.com/WICG/event-timing>
> >> - MDN:
https://developer.mozilla.org/en-US/docs/Web/API/PerformanceEventTiming
<https://developer.mozilla.org/en-US/docs/Web/API/PerformanceEventTiming>
> >> - ChromeStatus:
https://chromestatus.com/feature/5167290693713920
<https://chromestatus.com/feature/5167290693713920>
> >> - Caniuse.com URL:
https://caniuse.com/#feat=mdn-api_performanceeventtiming
<https://caniuse.com/#feat=mdn-api_performanceeventtiming>
> >>
> >> Regards,
> >>
> >> Rob.
> >> _______________________________________________
> >> webkit-dev mailing list
> >> webkit-dev@lists.webkit.org
<mailto:webkit-dev@lists.webkit.org>
> >> https://lists.webkit.org/mailman/listinfo/webkit-dev
<https://lists.webkit.org/mailman/listinfo/webkit-dev>
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