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» Workload Driven Index Defragmentation
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ICDE
2010
IEEE
170views Database» more  ICDE 2010»
14 years 4 months ago
Workload Driven Index Defragmentation
Decision support queries that scan large indexes can suffer significant degradation in I/O performance due to index fragmentation. DBAs rely on rules of thumb that use index size a...
Manoj Syamala, Vivek R. Narasayya
TC
2010
12 years 11 months ago
Model-Driven System Capacity Planning under Workload Burstiness
In this paper, we define and study a new class of capacity planning models called MAP queueing networks. MAP queueing networks provide the first analytical methodology to describe ...
Giuliano Casale, Ningfang Mi, Evgenia Smirni
VLDB
1997
ACM
124views Database» more  VLDB 1997»
13 years 9 months ago
An Efficient Cost-Driven Index Selection Tool for Microsoft SQL Server
In this paper we describe novel techniques that make it possible to build an industrial-strength tool for automating the choice of indexes in the physical design of a SQL database...
Surajit Chaudhuri, Vivek R. Narasayya
ASPLOS
2008
ACM
13 years 6 months ago
Hardware counter driven on-the-fly request signatures
Today's processors provide a rich source of statistical information on application execution through hardware counters. In this paper, we explore the utilization of these sta...
Kai Shen, Ming Zhong, Sandhya Dwarkadas, Chuanpeng...
IKE
2007
13 years 6 months ago
Bringing Information Retrieval Back To Database Management Systems
Information retrieval emerged as independent research area from traditional database management system more than a decade ago. This was driven by the increasing functional require...
Khaled Nagi