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USENIX Technical Program - Abstract - USENIX Annual
Conference, Freenix Session - June 2000
UBC: An Efficient Unified I/O and Memory Caching Subsystem for
NetBSD
Chuck Silvers, The NetBSD Project
Abstract
This paper introduces UBC ("Unified Buffer Cache"), a design for
unifying the filesystem and virtual memory caches of file data, thereby
providing increased system performance. In this paper we discuss both
the traditional BSD caching interfaces and new UBC interfaces,
concentrating on the design decisions that were made as the design
progressed. We also discuss the designs used by other operating systems
to solve the same problems that UBC solves, with emphasis on the
practical implications of the differences between these designs. This
project is still in progress, and once completed will be part of a
future release of NetBSD.
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