pTHINC Better web browsing on your mobile device Joeng Kim Ricardo - PowerPoint PPT Presentation

pTHINC Better web browsing on your mobile device Joeng Kim Ricardo Baratto Jason Nieh Columbia University, USA

Outline • Mobile Web Browsers • Problem • Alternative: Thin Clients • Usability • Visual Comparison • Measurements • Conclusion

Mobile Web Browser

QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture.

FLASH VIDEO IMAGE

Issues with Mobile Browsers • High quality pages mean.. – More Data Download – More Client Processing – Compatibility Issues • Application, Platform, Browsers, Standards – Requirement Issues • Flash, Java Applets, Javascript, Plug-in – Resize Issues – Language support

Alternative: Thin Clients

Thin Client • Leverage Server – High speed connection – More resource – Persistence • Allows – Heterogeneous display – Stateless client

Thin clients vs Web • preserve software • rewrite applications investments for the web • no client applications • client browser and helper applications

Thin Clients

pTHINC applications high-level requests window system device driver raw pixels framebuffer

pTHINC applications window system display updates virtual device driver input events

pTHINC • Fast and Lightweight • Leverage and Virtualize display • Video support

pTHINC protocol • copy • solid fill • pixmap fill • bitmap • RAW

Usability Enhancements

pTHINC Usage

Visual Comparison QuickTime™ and a QuickTime™ and a TIFF (LZW) decompressor TIFF (LZW) decompressor are needed to see this picture. are needed to see this picture.

QuickTime™ and a QuickTime™ and a TIFF (LZW) decompressor TIFF (LZW) decompressor are needed to see this picture. are needed to see this picture. QuickTime™ and a QuickTime™ and a TIFF (LZW) decompressor TIFF (LZW) decompressor are needed to see this picture. are needed to see this picture.

QuickTime™ and a QuickTime™ and a TIFF (LZW) decompressor TIFF (LZW) decompressor are needed to see this picture. are needed to see this picture. QuickTime™ and a QuickTime™ and a TIFF (LZW) decompressor TIFF (LZW) decompressor are needed to see this picture. are needed to see this picture.

Measurements

Measurements • Test run on basic Web benchmarks • Variable conditions – PDA: Dell Axim x5, x51v QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture.

Web Latency QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture. Latency measurement based on average page load time

Video Results QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture. Quality based on amount of data transferred

Conclusion • Mobile Web Browsers can be improved • pTHINC: potential alternative – Increased visual performance – Better usability – Helper functions such as video

more info network computing laboratory http://www.ncl.cs.columbia.edu