User-level Device Drivers: Achieved Performance

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Abstract
Running device drivers as unprivileged user-level code, encapsulated into their own process, has often been proposed as a technique for increasing system robustness. However, in the past, systems based on user-level drivers have generally exhibited poor I/O performance. Consequently, user-level device drivers have never caught on to any significant degree. In this paper we demonstrate that it is possible to build systems which employ user-level device drivers, without significant performance degradation, even for high-bandwidth devices such as Gigabit Ethernet.
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Author(s)
Leslie, Ben
;
Chubb, Peter
;
Fitzroy-Dale, Nicholas
;
Gotz, Stefan
;
Gray, Charles
;
Macpherson, Luke
;
Potts, Daniel
;
Shen, Yueting
;
Elphinstone, Kevin
; ...
Heiser, Gernot
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Publication Year
2005
Resource Type
Journal Article
Degree Type
UNSW Faculty