Machine A Instruction Count (millions) CPI Arithmetic 8 2 Instruction Class Load/Store 6 4 Branch 7 1
Machine A Instruction Count (millions) CPI Arithmetic 8 2 Instruction Class Load/Store 6 4 Branch 7 1
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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I am really having a hard time finding the average CPI for machine A. Could you help me step by step on how to do this?
Transcribed Image Text:Machine A
Instruction Count
(millions)
CPI
Machine B
Instruction Count
(millions)
CPI
Arithmetic
8
2
Arithmetic
5
Instruction Class
Load/Store
6
4
Instruction Class
Load/Store
3
8
Branch
7
1
Branch
2
Expert Solution
Cycles per Instruction
Cycles per instruction, or CPI, is a metric that has been part of the VTune interface for years. It shows the average number of CPU cycles required to clear an instruction and is therefore an indicator of how much system latency has affected the running application.
With single-threaded processors, the best achievable CPI is 1. However, with multi-threaded processors, even better CPI values (CPI <1) can be achieved. In this case, the processor is said to be hypersonic.
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