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

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Jul 11, 2023 349 likes •621 views

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

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pTHINC

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

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Outline

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

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Mobile Web Browser

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VIDEO FLASH IMAGE

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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

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Alternative: Thin Clients

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Thin Client

Leverage Server

– High speed connection – More resource – Persistence

Allows

– Heterogeneous display – Stateless client

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Thin clients vs Web

rewrite applications

for the web

client browser and

helper applications

preserve software

investments

no client applications

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Thin Clients

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pTHINC

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

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virtual device driver

pTHINC

applications window system

display updates input events

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pTHINC

Fast and Lightweight
Leverage and Virtualize display
Video support

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pTHINC protocol

copy
solid fill
pixmap fill
bitmap
RAW

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Usability Enhancements

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pTHINC Usage

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Visual Comparison

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

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

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

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

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Measurements

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Measurements

Test run on basic Web benchmarks
Variable conditions

– PDA: Dell Axim x5, x51v

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Web Latency

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Latency measurement based on average page load time

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Video Results

Quality based on amount of data transferred

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Conclusion

Mobile Web Browsers can be improved
pTHINC: potential alternative

– Increased visual performance – Better usability – Helper functions such as video

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more info

network computing laboratory

http://www.ncl.cs.columbia.edu