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Instruction-grain program monitoring tools, which check and analyze executing programs at the granularity of individual instructions, are invaluable for quickly detecting bugs and security attacks and then limiting their damage (via containment and/or reco ...
This paper presents hardware and software mechanisms to enable concurrent direct network access (CDNA) by operating systems running within a virtual machine monitor. In a conventional virtual machine monitor, each operating system running within a virtual ...
The Peregrine RPC system provides performance very close to the optimum allowed by the hardware limits, while still supporting the complete RPC model. Implemented on an Ethernet network of Sun-3/60 workstations, a null RPC between two user-level threads ex ...
Components of object-oriented systems have strong similarities with components of distributed systems; objects can be viewed as loosely coupled computing entities similar to distributed processes, but objects granularity is generally different from process ...
Most operating systems enforce process isolation through hardware protection mechanisms such as memory segmentation, page mapping, and differentiated user and kernel instructions. Singularity is a new operating system that uses software mechanisms to enfor ...
Distributed systems have strong similarities with object systems. However, coordination models for these systems have slightly different requirements. This paper presents a specific coordination model for distributed object systems, built on hierarchical e ...
The Byzantine failure model allows arbitrary behavior of a certain fraction of network nodes in a distributed system. It was introduced to model and analyse the effects of very severe hardware faults in aircraft control systems. Lately, the Byzantine failu ...
BEST PAPER AWARDIn this paper, we propose and evaluate three techniques for optimizing network performance in the Xen virtualized environment. Our techniques retain the basic Xen architecture of locating device dri ...
The presentation reports upon the conception and realization of a miniature very low-power microcamera system that has been embedded in a wristwatch so as to enable the spontaneous capture of photographs in everyday life based on timekeeping devices the us ...
Even after decades of software engineering research, complex computer systems still fail, primarily due to nondeterministic bugs that are typically resolved by rebooting. Conceding that Heisenbugs will remain a fact of life, we propose a systematic investi ...
