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RE: Byte size in *Timing (Was: detecting connection speed)

From: Aaron Heady (BING AVAILABILITY) <aheady@microsoft.com>
Date: Tue, 10 Dec 2013 23:14:44 +0000
To: Philippe Le Hegaret <plh@w3.org>, Ilya Grigorik <igrigorik@google.com>
CC: Jatinder Mann <jmann@microsoft.com>, "public-web-perf@w3.org" <public-web-perf@w3.org>
Message-ID: <61f530131bca4bfca96f20e4bbf0ad57@BLUPR03MB278.namprd03.prod.outlook.com>
It would also be interesting to compare bytes seen by the browser to bytes sent logged at the origin to help identify content modification along the way to the client. 

-----Original Message-----
From: Philippe Le Hegaret [mailto:plh@w3.org] 
Sent: Tuesday, December 10, 2013 2:54 PM
To: Ilya Grigorik
Cc: Jatinder Mann; public-web-perf@w3.org
Subject: Byte size in *Timing (Was: detecting connection speed)

On Wed, 2013-12-04 at 15:04 -0800, Ilya Grigorik wrote:

> There have been multiple requests in the past to expose the "bytes 
> transferred" as part of Nav/Resource Timing API. While this is not a 
> panacea, I do think it would be valuable and could address a lot of 
> use cases we're discussing here... Or, to be more precise, give the 
> developers the basic primitive to then build up their own abstractions 
> to drive BW-estimation and similar use cases.

Btw, this came up again on the table during our f2f on Resource Timing
L2 [1]. I added a note about it in our dashboard after that [2]. So, while we're not good at having a clear list of features we're considering for .next, this one is definitively in it. Now, I don't believe we considered it for Nav Timing yet.

Philippe

[1] http://www.w3.org/2013/11/14-webperf-minutes.html#item08

[2] http://www.w3.org/wiki/Web_Performance/Publications




Received on Tuesday, 10 December 2013 23:15:24 UTC

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