| John P. Kearns and Samuel DeFazio. Diversity in database reference behaviour. Performance Evaluation Review, 17(1):11--19, May 1989. |
.... We consider this overly restrictive because this policy is always a compromise between performance and generality; related work has shown that applications are often ill served by the default operating system policy [1, 50] and can benefit significantly from managing their own memory resources [15, 19, 20, 27, 29, 39]. Also, while the allocation policy can be configured in some of the approaches, other policies, e.g. for placement or replacement, cannot be influenced at all. Furthermore, the effectivity of this approach depends strongly on the policy that is being used. FCFS, which is implemented in L4 and ....
John P. Kearns and Samuel DeFazio. Diversity in database reference behaviour. Performance Evaluation Review, 17(1):11--19, May 1989.
....the frequently visited portion of the extended access graph. BROOM will then try to imitate the optimal offline algorithm by using this knowledge. The second motivation factor for developing BROOM is the existence of stable reference patterns in databases transactions over a long period of time [22]. This mean that the knowledge which is extracted by mining will remain valid for future accesses. The remainder of this thesis is organized as follows. Chapter 2 examines the reference patterns that are likely to occur in a database and describes a system model for devloping BROOM. An ....
....5 ; P 8 ; P 23 g Transaction 2: fP 10 ; P 2 ; P 8 ; P 9 ; P 12 ; P 21 ; P 1 ; P 3 ; P 7 ; P 9 ; P 15 g Transaction 3: fP 9 ; P 25 ; P 10 ; P 2 ; P 1 ; P 3 ; P 7 ; P 9 ; P 15 ; P 18 ; P 4 ; P 8 g Figure 2 2: Embedded Pattern within Different Transactions. As an early study by Kearns and DeFazio [22] shows that database reference patterns exhibited by a transaction change very little over time, we assumed that these common reference patterns are stable over a long period of time. We now analyze in greater detail reference patterns in DBMSs. Our analysis focus on two points: ffl The sources ....
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J. P. Kearns and S. Defazio. Diversity in database reference behaviour. Performance Evaluation Review, 17(1):11-19, May 1989.
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John P. Kearns and Samuel DeFazio. Diversity in database reference behaviour. Performance Evaluation Review, 17(1):11--19, May 1989.
No context found.
J. P. Kearns and S. Defazio. Diversity in database reference behaviour, Performance Evaluation Review, 17(1):11-19, May 1989.
No context found.
John P. Kearns and Samuel DeFazio. Diversity in database reference behaviour. Performance Evaluation Review, 17(1):11-19, May 1989.
No context found.
John P. Kearns and Samuel DeFazio. Diversity in database reference behaviour. Performance Evaluation Review, 17(1):11--19, May 1989.
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