Now I’m stuck and have been confused for a couple of hours now I've been having a hard time with these question will you be able to help me 3c) Assuming an int requires 4 bytes, which elements of the array will start in physical memory?3d) Just considering virtual memory access time, how long will it take for function1() to execute?3e) Just considering virtual memory access time, how long will it take for function2() to execute?Remember to account for both read and write activity. 3. Virtual memoryStudy the two functions given below. Both use the same array declared as: static int data[256*256*8];void function1(){int i;int j;for (i = 0; i < 32; i++)for (j = 0; j< 256; j++)data] = i;void function2(){int i;int j;for (i = 0; i< 32; i++)for (j = 0; j< 256; j++)data[j*2048] = i;Assume the following behaviors in a virtual memory system. Reading or writing physical memory requires50 nanoseconds. Reading or writing disk writing 10 milliseconds. Page size is 8 kilobytes. Presume thatthe program has 1 megabyte of physical memory available. You may consider everything except the arrayaccess itself to take no time. You should also assume that the first 1 megabyte of the array is in physicalmemory initially. You may ignore any memory used by the program or stack to execute these functions.Using this information, answer the following questions. In each case, show the work you use to calculatethe answer. Give your answer in a reasonable unit.3a) How many bytes of virtual memory are necessary to hold the entire array?3b) How many pages are necessary to hold the entire array?3c) Assuming an int requires 4 bytes, which elements of the array will start in physical memory?

I have answered this question in step 2.

3d) Just considering virtual memory access time, how long will it take for function1() to execute? 3e) Just considering virtual memory access time, how long will it take for function2() to execute? Remember to account for both read and write activity.

3d) Just considering virtual memory access time, how long will it take for function1() to execute? 3e) Just considering virtual memory access time, how long will it take for function2() to execute? Remember to account for both read and write activity.

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

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Now I’m stuck and have been confused for a couple of hours now

I've been having a hard time with these question will you be able to help me

3c) Assuming an int requires 4 bytes, which elements of the array will start in physical memory?
3d) Just considering virtual memory access time, how long will it take for function1() to execute?
3e) Just considering virtual memory access time, how long will it take for function2() to execute?
Remember to account for both read and write activity.

3. Virtual memory
Study the two functions given below. Both use the same array declared as: static int data[256*256*8];
void function1()
{
int i;
int j;
for (i = 0; i < 32; i++)
for (j = 0; j< 256; j++)
data] = i;
void function2()
{
int i;
int j;
for (i = 0; i< 32; i++)
for (j = 0; j< 256; j++)
data[j*2048] = i;
Assume the following behaviors in a virtual memory system. Reading or writing physical memory requires
50 nanoseconds. Reading or writing disk writing 10 milliseconds. Page size is 8 kilobytes. Presume that
the program has 1 megabyte of physical memory available. You may consider everything except the array
access itself to take no time. You should also assume that the first 1 megabyte of the array is in physical
memory initially. You may ignore any memory used by the program or stack to execute these functions.
Using this information, answer the following questions. In each case, show the work you use to calculate
the answer. Give your answer in a reasonable unit.
3a) How many bytes of virtual memory are necessary to hold the entire array?
3b) How many pages are necessary to hold the entire array?
3c) Assuming an int requires 4 bytes, which elements of the array will start in physical memory?

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