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RE: [css-display-viewport] Enabling fast layout for web apps via isolation

From: François REMY <francois.remy.dev@outlook.com>
Date: Thu, 10 Jan 2013 00:49:00 +0100
Message-ID: <DUB002-W11A252FA5C17A53B2C084AA52B0@phx.gbl>
To: Paul Bakaus <pbakaus@zynga.com>, CSS WG <www-style@w3.org>
CC: Tobie Langel <tobie@fb.com>, Tab Atkins <jackalmage@gmail.com>
> Hi François,
>
> Love your proposal, very intriguing. Not sure if I should be concerned or
> excited that it seems that you (well, more-so Tab ;) would like to create
> a "high performance CSS alternative" within CSS. But hey, if it helps
> performance and is relatively straight forward to implement for the web
> developers, all for it.

This is actually a point where Tab and I do not completely agree. I do believe that a judicious use of the current CSS layout engines and of local viewports will be sufficient to create amazing (layout/scrolling) performances. I understand I'll have to prove this someway (ie: prove that you can get the benefits of a viewport-canvas using viewports and any other layout engine).

This is a nice challenge, and I have the big picture in mind already, but proving this would require making a comparative experiment and we don't have any 'pure canvas' implementation to test against. I guess I would need to make a benchmark to compare against current performance, but I'm not sure what to test exactly and how to enable 'off-screen elements non-rendering' optimizations via scripting. 


> Looking forward to hear Tab's finding on whether such optimizations help a
> lot or just a little.

Me too ;-) 		 	   		  
Received on Wednesday, 9 January 2013 23:49:28 GMT

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