tly, the ault rat s 500ns 00us. it ffective

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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q5
The amount of memory on a system is inversely
proportional to the page fault rate. Each time
when memory doubles that page fault rate is
reduced by thrice. (i.e. P is made P/3).
Currently, the system has 32MB memory and the
page fault rate is 2%. The main memory access
time is 500ns, and effective memory access
time 300us. if memory is increased by 128 MB
then Effective memory access time is
(up to 2 decimal)
µs.
Transcribed Image Text:The amount of memory on a system is inversely proportional to the page fault rate. Each time when memory doubles that page fault rate is reduced by thrice. (i.e. P is made P/3). Currently, the system has 32MB memory and the page fault rate is 2%. The main memory access time is 500ns, and effective memory access time 300us. if memory is increased by 128 MB then Effective memory access time is (up to 2 decimal) µs.
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