Re: [Resource Timing] Monotonic Clock

Looks good to me. Thanks.

James

On Tue, Aug 16, 2011 at 1:29 PM, Jatinder Mann <jmann@microsoft.com> wrote:

>  Yes, Navigation Timing needs a similar update. I have gone ahead and
> updated the Monotonic Clock sections for both Resource Timing and Navigation
> Timing, like so:****
>
> ** **
>
> Resource Timing – Section 5.2 Monotonic Clock****
>
> The value of the timing attributes must monotonically increase to ensure
> timing attributes are not skewed by adjustments to the system clock while
> fetching the resource. The difference between any two chronologically
> recorded timing attributes must never be negative. For all resources,
> including subdocument resources, the user agent must record the system clock
> at the beginning of the root document navigation and define subsequent
> timing attributes in terms of a monotonic clock measuring time elapsed from
> the beginning of the navigation. ****
>
> ** **
>
> Navigation Timing – Section 5.3 The Monotonic Clock****
>
> The value of the timing attributes must monotonically increase to ensure
> timing attributes are not skewed by adjustments to the system clock during
> the navigation. The difference between any two chronologically recorded
> timing attributes must never be negative. For all navigations, including
> subdocument navigations, the user agent must record the system clock at the
> beginning of the root document navigation and define subsequent timing
> attributes in terms of a monotonic clock measuring time elapsed from the
> beginning of the navigation.****
>
> ** **
>
> ** **
>
> *From:* public-web-perf-request@w3.org [mailto:
> public-web-perf-request@w3.org] *On Behalf Of *James Simonsen
> *Sent:* Monday, August 15, 2011 7:14 PM
> *To:* public-web-perf
> *Subject:* Re: [Resource Timing] Monotonic Clock****
>
> ** **
>
> On Mon, Aug 15, 2011 at 4:52 PM, Jatinder Mann <jmann@microsoft.com>
> wrote:****
>
> Good point. If you want to create a timeline of the entire page, requiring
> iframes resources to have the same monotonic clock as the root navigation
> would be best. I can update the spec to be clear on this point also.****
>
> ** **
>
> Should we also do the same thing for NavigationTiming within the iframe? It
> seems like having one reference navigation time that's shared by everything
> on the page is best for the timeline.****
>
> ** **
>
> James ****
>