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Our objective is to improve disk I/O performance in multi-disk systems supporting multiple concurrent users, such as file servers, database servers, and email servers. In such systems, many disk reads are absorbed by large in-memory buffers, and so disk writes comprise a large portion of the disk I/O traffic. LFS (Log-structured File System) has the(More)
There is an increasing need to support user mobility in today's computing environments. The incorporation of multicast routing support in a mobile computing environment presents several challenges. Of special interest are mobile multicast schemes suitable for TCP/IP networks in general, and the Internet in particular. This paper outlines a design of network(More)
In presenting this thesis in partial fullllment of the requirements for a Postgraduate degree from the University of Saskatchewan, I agree that the Libraries of this University may make it freely available for inspection. I further agree that permission for copying of this thesis in any manner, in whole or in part, for scholarly purposes may be granted by(More)
The buffer pool in a DBMS is used to cache the disk pages of the database. Because typical database workloads are I/O-bound, the effectiveness of the buffer pool management algorithm is a crucial factor in the performance of the DBMS. In IBM's DB2 buffer pool, the page cleaning algorithm is used to write changed pages to disks before they are selected for(More)
The University of Saskatchewan campus covers a large physical area, with more than 40 buildings distributed over 147 hectares of land on the banks of the South Saskatchewan River. Our geography has a significant impact on our approach to delivery of information technology. The campus wireless network is one of several new projects that we have introduced(More)
Our objective is to improve disk I/O performance in multi-disk systems supporting multiple concurrent users, such as file servers, database servers, and email servers. In such systems, many disk reads are absorbed by large in-memory buffers, and so disk writes comprise a large portion of the disk I/O traffic. LFS (Log-structured File System) has the(More)