Re: High performance timers and Web Perf

(cc'ed editor's of DOM4 for comment, given use case [1])

On Wednesday, 2 November 2011 at 17:40, Philippe Le Hegaret wrote:

> Folks,
> 
> I just wanted to report that the Web Performance group talked about the
> high performance times requirement yesterday [1].
> 
> We've been changing our specs recently to allow sub-milliseconds:
> [[
> Throughout this work, time is measured in sub-millisecond resolution
> since the start of the navigation of the root document, as recorded in
> the navigationStart attribute. For example, a timestamp value of 1.5
> would be 1.5 milliseconds since the start of the navigation of the root
> document.
> ]]
> http://dvcs.w3.org/hg/webperf/raw-file/tip/specs/PerformanceTimeline/Overview.html
> 
> However, we do realize that the current is still vague and that
> developers would probably want more guarantees on what
> "sub-milliseconds" means.
> 
> We expect to put a short document together within two weeks on that.
> I'll send a pointer to it.
> 
> Hopefully, that will address the use case. If it does not, let us know.
This API seems unrelated. I think we need to have DOM4 modified to support higher accuracy in the timeStamp of Events in a backwards compatible way. 
 

Received on Thursday, 3 November 2011 09:05:39 UTC