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USENIX, The Advanced Computing Systems Association

2007 USENIX Annual Technical Conference

Pp. 357362 of the Proceedings

Short Paper: Supporting Multiple OSes with OS Switching

Jun Sun, Dong Zhou, and Steve Longerbeam, DoCoMo USA Labs

Abstract

People increasingly put more than one OSes into their computers and devices like mobile phones. Multi-boot and virtualization are two common technologies for this purpose. In this paper we promote a new approach called OS switching. With OS switching, multiple OSes time-share the same computer cooperatively. A typical implementation can reuse an OSs suspend/resume functionality with little modification. The OS switching approach promises fast native execution speed with shorter switching time than traditional multi-boot approach. We describe the design of OS switching as well as our implementation with Linux and WinCE, and evaluate its performance.
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Last changed: 29 August 2007 ac