Exposing memory mapped I/O using NFS
Date
2000
Authors
Brown, A.
Editors
Edwards, J.
Advisors
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Conference paper
Citation
Proceedings of the 23rd Australasian Computer Science Conference ACSC 2000, held in Canberra 31 Jan-3 Feb 2000: pp.17-23
Statement of Responsibility
Fred Brown
Conference Name
Australasian Computer Science Conference (23rd : 2000 : Canberra, Australia)
Abstract
The design and implementation of some persistent object stores rely on the availability of memory mapped files. A significant difficulty faced by this approach is that the programmer has very little control over when I/O occurs. In this paper, a mechanism for exposing the I/O activity of a memory mapped file is presented. This involves implementing a special purpose NFS server that provides a shadow paged file which can be memory mapped by a persistent object store. Some initial performance figures are presented to indicate the relative performance of this approach compared to more traditional approaches.
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