- From: Stefan Seifert <nine@detonation.org>
- Date: Wed, 10 Aug 2016 20:10:28 +0200
- To: Shubhie Panicker <panicker@google.com>
- Cc: Ben Maurer <ben.maurer@gmail.com>, Bryan McQuade <bmcquade@google.com>, public-web-perf <public-web-perf@w3.org>, Paul Irish <paulirish@google.com>
On Mittwoch, 10. August 2016 10:52:56 CEST Shubhie Panicker wrote: > The timing info is attaching to the window and not to individual DOM nodes. > As such there is no performance concern for exposing the suggested first > paint metrics. That's what's implemented or at least considered now. But attaching the information to the window brings the challenge of picking the "right" moment to capture as there can be only one number for the "First Meaningful Paint" metric. What I'm suggesting instead is to attach timing information to the individual DOM nodes. As a developer I know that I'm really interested in the time until nav#main_nav is first painted and that we may completely ignore #splashscreen's appearance. And like Ben Maurer said, a single number may not cut it anyway, as there may be multiple parts of the site loaded incrementally and we would like to have timing information for them all. Kind regards, Stefan
Received on Wednesday, 10 August 2016 18:10:55 UTC