How fast is your computer?

1. Assignment 7_C
s1240073 Yusuke Tsuboi

2. Contents
u Introduction
u To be involved with computer’s operating
u Experimental Procedure
u Conclusion
u References(URL)

3. Introduction
u How do you feel about your computer’s operating? And, if
computer’s operation was late, why is it?
u How fast is your computer?
u I was interested in them questions.
u So, I want to talk about them.

4. The term is related with
computer’s operating
u I want to introduce about three terms of computer’s
operating.
u Benchmarking
u central processing unit(CPU)
u multitask

5. Benchmarking
u It is the meaning that it majors the performance of the
computer.
u It exists two types.(simple benchmarking, synthesis
benchmarking)
u Recently, People do benchmarking to major the
performance of the video card.
u Benchmark soft →

6. Benchmarking(2)
u It is the execution result
of Benchmarking test.
u I used the application,
called Xbench.
u https://xbench.softonic
.jp/mac

7. CPU
u CPU is important
factor in deciding the
computer’s operation.
u CPU is composed of
some factors.
u To be quick the
computer’s operation
has to be increased the
number of core.

8. CPU(2)
u If the number of the core was
increased, the operation can share
by some cores.
u For the reason, computer’s
operation becomes quick.
u So, the computer is the high
performance if the number of the
core was a lot.
>

9. CPU(3)
u CPU sends and receives a data to
memory.
u Memory has two factors.
u There are ROM and RAM.
u In particular, RAM is related with
computer’s operation.
u The bigger RAM is, the quicker of
the computer’s operation.

10. multitask
u It is the system that it deal with the multi task at one time.
u For example, it watches internet with making slides of the presentation.
u The OS that it does this processing is called multi-task OS.
u multi-task OS →

11. Experimental Procedure(1)
Computer Data Type Mathematical
Operation
#
Iterations
Total
Time(ms)
Operations/ms
mac OS int8 addition 100000 0.2953 338,639
int8 subtract 100000 0.2936 340,599
I tried to do this experimental on the website.
<measurement method> (on programming C)
Ex1)
<executing result>

12. Experiment Procedure(2)
u <Procedure>
u 1. Data type sets up the int 32 bit.
u 2. The number of occurrence sets up 100000.
u 3. The mathematical operation uses 20 times
severally.
u 4. Finally, it researches about the same
number combinations.
u The picture is the flow chart of this
experiment.

13. Conclusion
・As a result, I found these answers to Q1.
Q1: How do you feel about computer’s operation?
And, if operation was late, Why is it?
A: The number of core is a few.
RAM capacity is a few.
For the experiment, I think it changes executing time by doing the computer’s
operation.

14. Conclusion(2)
u Q2: In addition to Q1, how fast is your computer?
u A: It expands ROM and RAM in your computer.
u It should use new generation’s core or increase
the number of core.
u (example)After RAM expanded

15. References
u Benchmarking: http://pasokon.main.jp/contents/architecture/pc_sf004.html
u CPU: http://www.infonet.co.jp/ueyama/ip/glossary/cpu.html
u http://pcsyosinsya.com/CPU.htm
u Multitask:
https://kotobank.jp/word/%E3%83%9E%E3%83%AB%E3%83%81%E3%82%BF%E3%82%B9%E3
%82%AF-9083
u How First is your computer?(main theme): http://www.sciencebuddies.org/science-
fair-projects/project_ideas/CompSci_p011.shtml
u Thank you for listening!