usider 2 configurations of a cache-based memory system: Parameter System A System B e probability that memory access hits he cache. Also known as hit rate. 90% 95% cles required to fetch the data if the ess hits in the cache. 10 15 des required to fetch the data if the ess misses in the cache 1000 1000 )What is the average memory access latency of System A? ) What is the average memory access latency of System B? ) Which system would you prefer on your computer? Why?

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
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Q5.
Consider 2 configurations of a cache-based memory system:
Parameter
System A
System B
95%
The probability that memory access hits
in the cache. Also known as hit rate.
90%
Cycles required to fetch the data if the
access hits in the cache.
10
15
Cycles required to fetch the data if the
access misses in the cache.
1000
1000
a) What is the average memory access latency of System A?
b) What is the average memory access latency of System B?
c) Which system would you prefer on your computer? Why?
Transcribed Image Text:Q5. Consider 2 configurations of a cache-based memory system: Parameter System A System B 95% The probability that memory access hits in the cache. Also known as hit rate. 90% Cycles required to fetch the data if the access hits in the cache. 10 15 Cycles required to fetch the data if the access misses in the cache. 1000 1000 a) What is the average memory access latency of System A? b) What is the average memory access latency of System B? c) Which system would you prefer on your computer? Why?
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