RE: Ready indicator

IE shows marks in dev tools. However we do not have any special handling for specific marks AFAIK.

I’m working on specs all this week and can write a quick test to verify this for certain.

tt


From: Ilya Grigorik [mailto:igrigorik@google.com]
Sent: Thursday, November 6, 2014 11:56 AM
To: Ehsan Akhgari
Cc: Nic Jansma; Jonas Sicking; Eli Perelman; Yoav Weiss; public-web-perf
Subject: Re: Ready indicator


On Fri, Oct 17, 2014 at 9:58 AM, Nic Jansma <nic@nicj.net<mailto:nic@nicj.net>> wrote:
I'm not sure if any of the browsers have built in special handling (for dev tools, diagnostics, etc) of those marks.  Vendors?

We don't, we should. Opened a bug for Chrome CDT: crbug.com/431008<http://crbug.com/431008>

ig

On Fri, Oct 17, 2014 at 11:05 AM, Ehsan Akhgari <ehsan.akhgari@gmail.com<mailto:ehsan.akhgari@gmail.com>> wrote:
I grepped through the Blink and Chromium source code a while ago looking for mentions of these names, and couldn't find any.

On Fri, Oct 17, 2014 at 12:58 PM, Nic Jansma <nic@nicj.net<mailto:nic@nicj.net>> wrote:
I'm not sure if any of the browsers have built in special handling (for dev tools, diagnostics, etc) of those marks.  Vendors?

A casual web search shows numerous hits on blogs, etc where their use is being recommended.

For future reference, would "namespacing" the marks, such as prefixing them with "standard:" have been the recommended approach?  When designing UserTiming, we wanted to suggest standardized names that developers could use, if they were inclined.  The spec is careful to not mention any expectation out of using these standard names.


- Nic

http://nicj.net/


@NicJ
On 10/13/2014 4:49 PM, Jonas Sicking wrote:

On Mon, Oct 13, 2014 at 11:24 AM, Nic Jansma <nic@nicj.net><mailto:nic@nicj.net> wrote:

Hi Eli!



In hindsight, I would agree with both of your recommendations.



At this point though, with UserTiming being a W3C Recommendation, I think

that changing the names would bring confusion.  They're also only seen by

developers.



If there are any additional "standard" marks you can think of that would be

useful, please let us know as well.

Hi Nic,



It somewhat concerns me that we say "use whatever name mark you want,

it's just a string for you to give your own meaning to", but that we

then turn around and say "except for these names, these have special

behavior. Don't use these unless you mean exactly what we define them

to mean".



This is something that we've stayed away from with for example Element

class names or id values. Various proposals have been made which gave

special meanings to class names or id values, but they have always

been shot down because things are just simpler if those are namespaces

owned entirely by authors.



Has any browsers actually implemented any browser features using the

defined mark names?



/ Jonas





--
Ehsan