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tigry1 [53]
3 years ago
10

Suppose a computer can execute 1 billion instructions/sec and that a system call takes 1000 instructions, including the trap and

context switching. How many system calls can the computer execute per second and still have half the CPU capacity for running application code?
Computers and Technology
1 answer:
Genrish500 [490]3 years ago
3 0

Answer:

System calls = 500000

Explanation:

Instructions that a computer can execute = 1 billion instructions/sec

Instructions that a system call takes including the trap and context switching = 1000 instructions

When half of the CPU time is on application, n system calls can be executed in 1 second.

Therefore we'll get an equation as following.

1000 * n = 0.5 * 1000000000

n = 0.5 * 1000000000 / 1000

n = 500000

System calls = 500000

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Bezzdna [24]

Answer:

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Explanation:

The fundamental concept is that allocating a process with too few frames causes too many and frequent page faults. This implies that the CPU does not perform any useful work and thus its utilization would decrease drastically. In this case, the long-term scheduler, in a bid to improve the utilization of the CPU, would load more processes into the memory so as to increase the extent of multiprogramming. As a result, there would be more decrease in the utilization of the CPU, leading to a chained reaction of higher page faults, which is then followed by a corresponding increase in the multiprogramming degree, usually known as thrashing.

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3 years ago
________ are the primary means of authentication for a user's computer and other networks and servers to which the user may have
inn [45]

Answer:

The answer to this question is "Password".

Explanation:

In computer science, any User's computer and networks and server is secured with the password to access all we use the password. for example, if we want to access any WiFi system or any User's computer. Then we will insert the password. If the password is wrong so we can't access the WiFi system or User's computer. similarly, If we want to access any server so we must know about the password. Then we use the server and change it's setting.

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4 0
3 years ago
How are the current and resistance related when the voltage of a circuit is constant?
andreev551 [17]
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5 0
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Write a program that prompts the user to enter a date, using integer values for the month, day, and year, and then prints out th
attashe74 [19]

Answer:

import datetime

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int_date = tuple([int(x) for x in user])

year, month, day =int_date

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print(mydate)

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The datetime python module is used to create date and time objects which makes it easy working with date-time values. The user input is converted to a tuple of integer items, then they are converted to date time objects and parsed to string with the strftime method.

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2 years ago
What is the difference between the default constructor and the overloaded constructor?
lukranit [14]

Explanation:

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3 years ago
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