SLIM System

SLIM System - Interactive Performance of SLIM : Interactive...

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Unformatted text preview: Interactive Performance of SLIM : Interactive Performance of SLIM : A Stateless Thin Client Architecture A Stateless Thin Client Architecture Kushal Dwivedi - 010816 Kushal Dwivedi - 010816 Girraj Prasad - 017867 Girraj Prasad - 017867 Pradeep Singh -012862 Pradeep Singh -012862 History and Trend Computing environment timeline 1970s: time-sharing of mainframes 1980s: networks of workstations 1990s. administration costs force? return to time- sharing Thin-Client Computing Only GUI part of applications run on terminal Examples: X terminals, WinTerms, Network Computers High Level, API-specific protocols Networks are fast enough to send simple pixel encodings with no performance degradation SLIM Interconnection Fabric private communication medium dedicated connections between desktop and servers Sun Ray 1: 10 / 100 Base - T Ethernet switched, full duplex 100 Mbps network SLIM Protocol Principle Idea: Keep computing power on client as low as possible => Cheap and available for all interesting applications Simple pixel encoding for display See next slide Keyboard and mouse state messages To be used by low level Device Drivers Does not require Reliable, Sequenced packet delivery Simple error recovery Implemented on top of UDP/IP Simple pixel Encoding Display commands: set: set pixel values bitmap: expand 2 color bitmap to fill rectangular region fill: fill a rectangular region copy: copy a rectangular region of the frame-buffer to another region cscs: C olor S pace C onvert: YUV to RGB and S cale SLIM Servers...
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SLIM System - Interactive Performance of SLIM : Interactive...

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