The implementation of mutex locks provided in Section 6.5 suffers from busy waiting. Describe what changes would be necessary so that a process waiting to acquire a mutex lock would be blocked and placed into a waiting queue until the lock became available.

Answers

Answer 1

The changes would be necessary so that a process waiting to acquire a mutex lock would be blocked and placed into a waiting queue is: Spinlocks.

What is spinlock?

Spinlock can be defined as the process of enabling a thread to  wait while looking for lock that are available.

Spinlock is important as it enable thread to partition processor based on their needs so as to make it possible for thread waiting for spinlock to make use of one processor while other threads can as well run on other processor without hindering or interrupting one another.

Inconclusion the changes would be necessary so that a process waiting to acquire a mutex lock is: Spinlocks.

Learn more about spinlock here:https://brainly.com/question/13766808


Related Questions

which is considered both an input and output device?
A) Keyboard
B) Microphone
C) Speaker
D) Touchscreen Monitor
Please hurry :3 15 points

Answers

Answer:

speaker

Explanation:

its the one that gives sounds

Answer:

The answer would be D) Touchscreen Monitor

Explanation:

A Touchscreen monitor (such as a smartphone screen) outputs information to the user, while also recieving information from the user.

Complete the sentence.

Times New Roman, Courier New, Arial and Verdana are all examples of _____.

1. web-safe colors
2. web-safe fonts
3. formatting templates
4. accessible fonts​

Answers

Answer:

web-safe fonts

Explanation:

Because if you look at the different fonts they are all readable

Answer: 2. web-safe fonts

Explanation: got it right on edgen

6. Create lookup functions to complete the summary section. In cell I6, create a formula using the VLOOKUP function to display the number of hours worked in the selected week. Look up the week number in cell I5 in the range A17:G20, and return the value in the 2nd column. Use absolute references for cell I5 and the range A17:G20.

Answers

Answer:

Reporting period hours Timesheet Due Name 44260 Period Start 44228 Period End 40965 Summary Balances Date Completed 43722 Week # 1 Period Start Period End Worked

what is computers machain?

Answers

Answer:

the electronic device which take data process it and give meaningful results is called computer machine

which of the following is an example of application software

Answers

Answer:

A messaging app

Explanation:

Its an software application you can download, so...yeah.

(You might've thought it was an anti-virus program lol)

Option-D.A messaging app is the correct answer.
A messaging app is an application software that can be installed jn your phone and computer in order to send messages.

What is an Application software?Application software is a type of computer application that performs specific professional, academic, and individualized functions.Each software is designed to assist users with a variety of tasks, some of which may be related to productivity, creativity, or communication.Word processors, media players, and accounting software are examples of application programs.An application program (also known as a software application, application, or app for short) is a computer program created to carry out a specific task other than one related to the operation of the computer itself.The term "app" typically refers to apps for mobile devices such phones. Applications may be published independently or packaged with the computer and its operating system software.They may also be written in proprietary, open-source, or project code.An application can work with text, numbers, audio, visuals, and a combination of these depending on the task for which it was created.Word processing is an example of an application package that focuses on a particular task.On the other hand, integrated software merges several programs.

To learn about the DIfference between application software and Opertaing system click here-
https://brainly.com/question/17798901

#SPJ2

The algorithm solves the problem
of size n by recursively solving
sub-problems of size n – 1, and
then combining the solutions in
Q(n) time.

Answers

Looking at the question on algorithm above, the correct answer is: [tex]O( {2}^{n} )[/tex]

What is algorithm?

Algorithm refers to a sequence of instructions that have been well-defined which helps to solve specific problems. Algorithm is used in computation.

The recurrence relation is:

T(n)=2.T(n-1)+c , n>0

T(n)=1, n=0.

Considering the back substitution method,

T(n) = 2kT(n-k)+ 2k-1c+....+20c

Substitute n-k=0

Therefore, we will have:

T(n) = 2nT(0)+ 2k-1c+....+20c

T(n) = [tex] {2}^{n - 1} + 1[/tex]

T(n) = [tex]O( {2}^{n} )[/tex]

Learn more about algorithm on https://brainly.com/question/24953880

1. What is TRUNC for Delphi
programming language?
Please explain in at least 200
words.

Answers

The Trunc function cut off a floating-point value by removing the fractional part. The Trunc  function often brings back an integer result as it is not a real function.

What is the Trunc function in Delphi?

When you look at the Delphi code, the Trunc function is known to be a fuction that reduces or cut off a real-type value and make it into an integer-type value.

Note that X is a real-type expression and so the Trunc is said to often brings back an Int64 value that is meaning the value of X approximated to zero and when the cut of value of X is not found in  the Int64 range, an EInvalidOp exception is brought up.

Learn more about programming language from

https://brainly.com/question/8151764

display unit is capable of displaying test but not ​

Answers

Answer:

I think your question must be display unit is capable of displaying text but not.

Explanation:

A text display is an electronic alphanumeric display device that is mainly or only capable of showing text, or extremely limited graphic characters.

Steps of booting a computer

Answers

Steps of Booting
The Startup. It is the first step that involves switching the power ON. ...
BIOS: Power On Self Test. It is an initial test performed by the BIOS. ...
Loading of OS. In this step, the operating system is loaded into the main memory. ...
System Configuration. ...
Loading System Utilities. ...
User Authentication.

You can always trust information that comes from websites ending in. . com

Answers

Answer:

No, Don't go there I can name more than 3 websites that end in ".com" that u cant trust.

Explanation:

I of 60
MUL
FINISI
a
The view in which the field data types and field properties for a database table can be seen in Microsoft
Access is called the...
0.5 POINTS
A
00
Datasheet view
B
design view
с
D
SQL view
dashboard view
E
field view

Answers

The view in which the field data types and field properties for a database table can be seen in Microsoft Access is called the Datasheet view.

What is datasheet view?

A datasheet form is known to be the view that shows a user the information recorded using a table.

Note that the properties of a field tells users the characteristics and attributes of data added to that field. A field's data type is therefore a vital  property as it helps one to know the kind of data the field can save.

Learn more about database  from

https://brainly.com/question/26096799

Write multiple if statements:

If carYear is before 1967, put "Probably has few safety features.\n" to output.

If after 1970, put "Probably has head rests.\n" to output.

If after 1992, put "Probably has anti-lock brakes.\n" to output.

If after 2002, put "Probably has airbags.\n" to output.

Ex: If carYear is 1995, then output is:

Probably has head rests.
Probably has anti-lock brakes.

Answers

Hope this is good enough! Good luck.

Most graphics software programs give you the choice to work in either RGB or CMYK. What are these specifications called?
A.
digital codes
B.
color spaces
C.
computer graphics
D.
artwork

Answers

A - digital codes

Hope I’m right

Answer:B

Explanation:

Two gamers are programming each player in a football team to throw a football
across the stadium at a specific speed to arrive at the running back's hand. Which is
the parameter and which is the argument in the code below?
The parameter and argument are the same, speed by 5 or 2
The parameter is speed, the argument is 5 or 2
The parameter is 5 or 2, the argument is speed
There are no parameters or arguments

Answers

The parameter and  the argument in the code below is that the parameter is speed, the argument is 5 or 2.

Can programmers be said to be gamers?

Gaming is known to be a kind of starting point for new set of programmers  as a lot of game designers do uses different kinds of skills.

Note that in the above scenario, it the parameter is speed, the argument is needs to be 5 or 2 for it to work well.

Learn more about code  from

https://brainly.com/question/25605883

What command allows the root user to create a crontab file for the user jdoe?

Answers

The command allows the root user to create a crontab file for the user jdoe is As root, execute crontab -e jdoe.

What is the command in crontab?

The crontab command is known to be that often submits, make some editing, lists, or delete cron jobs.

Note that A cron job is a type of command that is often aided or  run by the cron daemon at  a consistent and scheduled times.

Conclusively, The  As root, execute crontab -e jdoe command will give room for the root user to create a crontab file for the user named jdoe.

Learn more about command form

https://brainly.com/question/25243683

How can use of the Internet potentially be a security issue?

Programs, such as spyware, are mistakenly accessed by visiting an infected
website.
Individuals called viruses attempt to secretly enter another computer to harm it.
Phishing attempts to get someone's personal data with fake emails and social
media requests.
Unwanted software called hackers can transmit personal data from a computer.

Answers

Answer:

Unwanted software called hackers can transmit personal data from a computer.

Explanation:

The other options mention "attempt" meaning it hasn't happened yet. So I'm going to assume the last one is right. I'm not 100%

Strategies of Green computing include:

Answers

Answer:

Equipment recycling, reduction of paper usage, virtualisation, cloud computing, power

Define a function FindLargestNum() with no parameters that reads integers from input until a negative integer is read. The function returns the largest of the integers read

Answers

The FindLargestNum program is an illustration of function; where its execution is done when its name is called or evoked

The function FindLargestNum

The FindLargestNum function written in Python, where comments are used to explain each action is as follows:

#Thie defines the FindLargestNum function

def FindLargestNum():

   #This gets the first input

   num = int(input())

   #This initializes the minimum value

   maxm = num

   #The following is repeated until the user enters a negative input

   while num >= 0:

       #This determines the largest input

       if num > maxm:

           maxm = num

       #This gets the another input

       num = int(input())

   #This prints the largest input

   print(maxm)

Read more about functions at:

https://brainly.com/question/24941798

type of software designed for users to customise programs is?

Answers

Answer:
So easy the answer is Freeware
Explanation:

Consider the following program written in C syntax:
void swap(int a, int b) {
int temp;
temp = a;
a = b;
b = temp;
} void main() { int value = 2, list[5] = {1, 3, 5, 7, 9};
swap(value, list[0]);
swap(list[0], list[1]);
swap(value, list[value]);
}
For each of the following parameter-passing methods, what are all of the
values of the variables value and list after each of the three calls to
swap?
1. Passed by value
2. Passed by reference
3. Passed by value-result
6.

Answers

The values of the variables value and list after each of the three calls to

swap are:

value = 2 and  list[5] = {1, 3, 5, 7, 9};value = 2 and  list[5] = {3, 1, 5, 7, 9};value = 2 and  list[5] = {3, 1, 5, 7, 9};

How to determine the values of variable value and the list?

1. Passed by value

In this case, the values of the actual arguments remain unchanged; So the variable value and the list would retain their initial values

The end result is:

value = 2 and  list[5] = {1, 3, 5, 7, 9};

2. Passed by reference

With pass by reference, the arguments are changed.

Given that

value = 2 and  list[5] = {1, 3, 5, 7, 9};

The value of variable value is swapped with list[0].

So, we have:

value = 1 and  list[5] = {2, 3, 5, 7, 9};

Then list[0] and list[1] are swapped

So, we have:

value = 1 and  list[5] = {3, 2, 5, 7, 9};

Lastly, value and list[value] are swapped

So, we have:

value = 2 and  list[5] = {3, 1, 5, 7, 9};

The end result is:

value = 2 and  list[5] = {3, 1, 5, 7, 9};

3. Passed by value-result

Since there is no loop in the program, the pass by value-result has the same output as the pass by reference.

So, the end result is:

value = 2 and  list[5] = {3, 1, 5, 7, 9};

Read more about C syntax at:

https://brainly.com/question/15705612

Intro to Computer Science:
A zero-tolerance policy means that if the employee violates the policy, they will be _____.
promoted
fired
warned
reprimanded

The correct answer is: fired :)

Answers

When a employee violate a zero-tolerance policy they’ll be fired!

A zero-tolerance policy means that if the employee violates the policy, they will be fired. Thus, the correct answer is option B.

What is a Zero-tolerance policy?

A zero tolerance policy is one that penalizes every violation of a stated rule. People in positions of authority are prohibited by zero tolerance policies from exercising discretion or changing punishments to fit the circumstances subjectively. They must impose a predetermined punishment regardless of individual guilt, extenuating circumstances, or history.

Zero tolerance policies are studied in criminology and are used in both formal and informal policing systems worldwide. If an employee violates the policy, there will be no tolerance and they will be fired.

Therefore, a zero-tolerance policy means that if the employee violates the policy, they will be fired.

To learn more about zero-tolerance policy, click here:

https://brainly.com/question/27293242

#SPJ2

Which of the following are vector graphic file formats? Choose all that apply.

AI

PNG

RAW

SVG
Please help

Answers

There are different kinds of files. The option that is a vector graphic file formats is SVG.

What are vector files?

Vector files are known to be a type of images that are created by using mathematical formulas that stands as points on a grid.

The SVG  is known as Scalable Vector Graphics file and it is known to be a  vector image file format as it make use of geometric forms such as points, lines, etc.

Learn more about vector graphic file from

https://brainly.com/question/26960102

Answer:

AI and SVG

Explanation:

learned it from a comment i give all credit to them

Develop a program to sort a file consisting of bonks details in the alphabetical order of author names. The details of books include book id, author_name, price. no of pages, publisher, year of publishing
Please provide C++ program for above question.​

Answers

Use the knowledge in computational language in C++ to write the a code with alphabetical order of author name.

How to define an array in C++?

An Array is a set of values ​​arranged in lists and accessible through a positive numeric index. So, we have that each position of our Array is a variable of the type of our Array, so we have to have a way to initialize this set of variables.

#include <iostream>

#include <iomanip>

#include <fstream>

#include <string>

using namespace std;

struct Book {

   string title;

   string author;

};

const int ARRAY_SIZE = 1000;

Book books [ARRAY_SIZE];

string pathname;

ifstream library;

int LoadData();

void ShowAll(int count);

void ShowBooksByAuthor(int count, string name);

void ShowBooksByTitle(int count, string title);

void sortByTitle(int count, string title);

void sortByAuthor(int count, string author);

int main()

{  

   int count = 0;

   char selector = 'q', yesNoAnswer = 'n';

   string name;

   string title;

     cout << "Welcome to Forrest's Library Database." << endl;

   cout << "Please enter the name of the backup file: ";

   getline(cin, pathname);

   LoadData();

   count = LoadData();

   cout  << count << " records loaded successfully." << endl;

   do

   {

       cout << endl << "\t(S)how All, Search (A)uthor, Search (T)itle, (Q)uit: ";

       cin >> selector;

       selector = toupper(selector);

       switch(selector)

       {

           case 'S':

               sortByTitle(count, title);

               if (count <= 0)

                   cout << "No counts found!\n";

               else

                   ShowAll(count);

               break;

           case 'A':

               sortByAuthor(count, name);

               cout << "bookAuthor: ";

               cin.ignore();

               getline(cin, name);

               if (count <= 0)

                   cout << "No records found!\n";

               else

                   ShowBooksByAuthor(count, name);

               break;

           case 'T':

               sortByTitle(count, title);

               cout << "bookTitle: ";

               cin.ignore();

               getline(cin, title);

               if (count <= 0)

                   cout << "No records found!\n";

               else

                   ShowBooksByTitle(count, title);      

               break;

       }

   }

   while (selector != 'q' && selector != 'Q');

   return 0;

}

int LoadData()

{

   int count = 0;

   int i = 0;

   library.open(pathname);

   ifstream library(pathname);

   if (!library)

   {

       cout << "Cannot open backup file" << endl;

       return 0;

   }

   while (!library.eof())

   {

       getline(library, books[count].title);

       getline(library, books[count].author);

       count++;

   }

   return count;

}

void ShowAll(int count)

{

   for (int i = 0; i < count; i++)

   {

      cout << books[i].title << " " << "(" << books[i].author << ")" << endl;

   }

}

void ShowBooksByAuthor(int count, string name)

{

   int j = 0;

   for (int i = 0; i < count; i++)

   {

       if(books[i].author.find(name) < 100)

       {

           cout << books[i].title << " " << "(" << books[i].author << ")" << endl;

           j++;

       }

   }

   cout << j << " records found";}

void ShowBooksByTitle(int count, string title)

{

   int j = 0;

   for (int i = 0; i < count; i++)

   {

       if(books[i].title.find(title) < 100)

       {

           cout << books[i].title << " " << "(" << books[i].author << ")" << endl;

           j++;

       }

   }

   cout << j << " records found";

}

void sortByTitle(int count, string title) {

   string temp;

   for (int i = 0; i < count; i++) {

       for(int j = 0; j < count - i; j++) {

           if (books[j].title > books[j + 1].title) {

               temp = books[j].title;

               books[j].title = books[j + 1].title;

               books[j + 1].title = temp;

           }

       }

   }

}

void sortByAuthor(int count, string name) {

   string temp;

   for (int i = 0; i < count; i++) {

       for(int j = 0; j < count - i; j++) {

           if (books[j].author > books[j + 1].author) {

               temp = books[j].author;

               books[j].author = books[j + 1].author;

               books[j + 1].author = temp;

           }

       }

   }

}

See more about C++ at brainly.com/question/19705654

This week, we have covered network management which include topics such as System message log, SNMP, Netflow, QoS, VPN, and default gateway redundancy. Discuss one feature you would implement in your network and how you use it.

Answers

There are lot of system network. I would love to implement the use of VPN in my network.

What is a gains of implementing a VPN?

The use of VPNs is one that helps a person to have a better form of total security, it also make performance better, remote access, anonymity, an others.

Conclusively, Note that the use of VPN can be  affordable as it is cheap and it can prevent hackers  having access to your data or system.

Learn more about VPN from

https://brainly.com/question/25554117

A team member who does not feel comfortable disagreeing with someones opinion in front of the team would most likely come from a

Answers

Answer:

discussions and decisions made about public policy

Explanation:

9.12: Element Shifter
Write a function that accepts an int array and the array’s size as arguments. The function should create a new array that is one element larger than the argument array. The first element of the new array should be set to 0. Element 0 of the argument array should be copied to element 1 of the new array, element 1 of the argument array should be copied to element 2 of the new array, and so forth. The function should return a pointer to the new array. Demonstrate the function by using it in a main program that reads an integer N (that is not more than 50) from standard input and then reads N integers from a file named data into an array. The program then passes the array to your element shifter function, and prints the values of the new expanded and shifted array on standard output, one value per line. You may assume that the file data has at least N values.

Prompts And Output Labels. There are no prompts for the integer and no labels for the reversed array that is printed out.

Input Validation. If the integer read in from standard input exceeds 50 or is less than 0 the program terminates silently.

Answers

The Element shifter program illustrates the use of functions and arrays

Arrays are used to hold multiple valuesFunctions are used as subroutines of a program

The Element shifter program

The Element shifter program written in C++, where comments are used to explain each action is as follows:

#include <iostream>

using namespace std;

//This declares the ElementShifter function

int* ElementShifter(int *arr, int size){

   //This declares the new array

   int *newArr = new int[size * 2];

//The following loop populates the new array

   for (int i = 0; i < size * 2; i++) {

       if(i == 0){

           *(newArr+i) = 0;

       }

       else if(i < size+1){

           *(newArr+i) = *(arr+i-1);

       }

       else{

           *(newArr+i) = 0;

       }

   }

//This returns a pointer to the new array

   return newArr;

}

//The main method begins here

int main(){

//This declares and gets input for N

   int N;    cin>>N;

   int myArr[N];

//If N is between 1 and 50

   if(N > 0 && N <=50){

//This populates the array

       for(int i = 0; i<N; i++){

           cin>>myArr[i];

       }

//This calls the Element shifter function

   int *ptr = ElementShifter(myArr, N);

//This prints the new array

   for (int i = 0; i < N*2; i++) {

       cout << ptr[i] << " ";

   }

   }

  return 0;

}

Read more abou C++ programs at:

https://brainly.com/question/27246607

explains why it is important to select the correct data when creating a chart

Answers

Answer:

to be organized

Explanation:

because when you are organized to select the correct data, you won't confused

what is containment and why is it part of the planning process

Answers

Answer:

Isolating affected channels, processes, services, or computers; stopping the losses; and regaining control of the affected systems. It is part of the planning process to identify the best containment option for each scenario or system affected.

Explanation:

Which of the following are logical functions? Select all the options that apply.

Answers

Answer:

functions (reference)

Function Description

IFS function Checks whether one or more conditions are met and returns a value that corresponds to the first TRUE condition.

NOT function Reverses the logic of its argument

OR function Returns TRUE if any argument is TRUE

why is this not working for my plus membership

Answers

Answer:

The overwhelming main cause for PlayStation Plus subscriptions not being recognised is because of PlayStation server maintenance which prevents your PS4 from communicating with Sony and discovering that you are a paid up PS Plus subscriber.

Other Questions
Which phrase describes the ottman empire List principles that are most relevant to drop jump exercise and justify your answers that selected principles youare chosen are most relevant? N2+3H2 2NH3 A) How many grams of NH3 can be produced from the reaction of 28g of N2 and 25g of H2? I need the steps to the answer 34gB) How much of the excess reagent is left over? I need steps to the answer 19 g Please help me this is hard and its due today! Suppose a city with population 300,000 has been growing at a rate of 8% per year. If this rate continues, find the population of this city in 10 years. Which word best completes this sentence?Impulsiveness can be dangerous because often the person is acting withoutfully considering the possible _____A. benefitsB. motivationsC. positivesD. consequences what is the relationship between china and nepal? Alissa surveys a random sample of 50 students at her school about the countrythey would most like to visit. The table shows her results. Based on the sample,can Alissa conclude that there are probably fewer students at her school whowant to visit Japan than Australia? Explain your reasoning.There are two problems please help Resulting set please help !!!! jenny has $25 and she earns $10 for each lawn that she mows. jenny wants to buy a concert ticket that costs $65enter the minimum number of lawns jenny needs to mow to be able to buy the concert ticket Identify and explain ONE similarity between the actions of Japan and of Nazi Germany that the first passage reflects SAQ Q: In about 200 words, write an essay analyzing the STEEPLE Module .Students are required to define each key concept (STEEPLE) and to illustrate all concepts with examples. (40%) help pls i been stuck on this for 40 mins already How to say OK in a formal way in English? 2x + 3x - 1 =0 by make quadratic equation Consider these scenarios.1. An elephant weighs 1.5 104 units.2. A mouse weighs 2.13 10-5 units.3. A puppy weighs 1.2 102 units.Determine the unit of measurement that best represents each scenario.1. 2. 3. Explain what biodiversity is and give three reasons why it is important write one additional sentence about what is happening to our planets biodiversity and why this is a concern How did green algae come about Factor into linear factors: [tex]x^{2} +16[/tex] Question: leadership style and conflictif kim took a vote to decide who should be on the team and made everyone part of the decision, what leadership style would she have, what are the benefits of this style on team psychology, and how might this style impact the team in managing conflict?