Homework Answers
There are 2^(30) possible pages for a 30-bit page number.
Each page has 128 bytes and can have 128*8=1024/30=34 page entries per page table
So each page table will have effective 34*128 = 4352 bytes
- Smaller pages have lesser fragmentation
- A disk is designed to work on larger size pages
- Smaller pages mean larger page tables
DO give a thumbs up
Add Answer to:
6. (10 points Consider a system that has a 30-bit page-number and 128-byte pages. How large...
Consider a virtual memory system with the following properties: 36 bit virtual byte address, 8 KB...
Consider a virtual memory system with the following properties: 36 bit virtual byte address, 8 KB pages size, and 32 bit physical byte address. Please explain how you determined your answer. a. What is the size of main memory for this system if all addressable frames are used? b. What is the total size of the page table for each process on this processor, assuming that the valid, protection, dirty, and use bits take a total of 4 bits and...
Problem 6 (13 points) The page table below is for a system with 16-bit virtual as well as physica...
Problem 6 (13 points) The page table below is for a system with 16-bit virtual as well as physical addresses and with 4,096-byte pages. The reference bit is set to 1 when the page has been referenced. Periodically, a thread zeroes out all values of the reference bit. A dash for a page frame indicates the page is not in memory. The LRll pagg-replacement algorithm is used. The numbers are given in decimal Page Frame eferepceit 14 10 13 15...
Consider the following system: Byte addressable 16-bit addresses 256B pages Single level Page Table System The...
Consider the following system: Byte addressable 16-bit addresses 256B pages Single level Page Table System The system utilizes a fully-associative TLB with 4 entries and an LRU replacement policy. Given the access pattern and timings below, complete the following table. Assume the TLB begins initially empty and the cache is physically addressed NOTE: Access times are not inclusive and components are accessed sequentially. Time to update the TLB is negligible, everything else that needs to be updated will require a...
Problem 6 (13 points) The page table below is for a system with 16-bit virtual as...
Problem 6 (13 points) The page table below is for a system with 16-bit virtual as well as physical addresses and with 4,096-byte pages. The reference bit is set to 1 when the page has been referenced. Periodically, a thread zeroes out all values of the reference bit. A dash for a page frame indicates the page is not in memory. The LRll pagg-replacement algorithm is used. The numbers are given in decimal Page Frame eferepceit 14 10 13 15...
Consider the page table shown below for a system with 16-bit virtual and physical addresses and...
Consider the page table shown below for a system with 16-bit virtual and physical addresses and with 4096-byte pages. All numbers below are given in hexadecimal. (A dash for a page frame indicates that the page is not in memory.) Page Number Physical Frame Number 0 - 1 2 2 C 3 A 4 - 5 4 6 3 7 - 8 B 9 0 How many bits are in the offset part of the address? How many hex digits...
Consider the page table shown below for a system with 16-bit virtual and physical addresses and...
Consider the page table shown below for a system with 16-bit virtual and physical addresses and with 4096-byte pages. All numbers below are given in hexadecimal. (A dash for a page frame indicates that the page is not in memory.) Page Number Physical Frame Number 0 - 1 2 2 C 3 A 4 - 5 4 6 3 7 - 8 B 9 0 Convert the following virtual addresses to their equivalent physical addresses in hexadecimal. a) 9EF5 b)...
3. Virtual Memory (20 points) An ISA supports an 8 bit, byte-addressable virtual address space. The...
3. Virtual Memory (20 points) An ISA supports an 8 bit, byte-addressable virtual address space. The corresponding physical memory has only 256 bytes. Each page contains 32 bytes. A simple, one-level translation scheme is used and the page table resides in physical memory. The initial contents of the frames of physical memory are shown below. VALUE address size 8 bit byte addressable each byte of addressing type memory has its own address 32 B page size physical memory size 256...
A machine has a 16-bit byte-addressable virtual address space. The page size is 8 KB. How...
A machine has a 16-bit byte-addressable virtual address space. The page size is 8 KB. How many pages of virtual address space exist? (25 points)
1) The following page table illustrates a system with 12-bit virtual and physical addresses and 256-byte...
1) The following page table illustrates a system with 12-bit virtual and physical addresses and 256-byte pages. Free page frames are to be allocated in the order9 F, D. A dash for a page frame indicates that the page is not in memory. (4 points) Page Page-Frame 0x4 OxB 0 2 4 0x2 0x0 0xC 7 Convert the following virtual addresses to their equivalent physical addresses irn hexadecimal. All numbers are given in hexadecimal. In the case of a page...
Your system has 6 frames with 4 byte pages, and you use LRU for page replacement....
Your system has 6 frames with 4 byte pages, and you use LRU for page replacement. Consider the following string of memory accesses (shown in decimal): 43, 41, 42, 13, 23, 22, 13, 42, 51, 61, 23, 21, 73, 42, 13, 21 How many page faults?
Problem 6 (13 points) The page table below is for a system with 16-bit virtual as well as physical addresses and with 4,096-byte pages. The reference bit is set to 1 when the page has been referenced. Periodically, a thread zeroes out all values of the reference bit. A dash for a page frame indicates the page is not in memory. The LRll pagg-replacement algorithm is used. The numbers are given in decimal Page Frame eferepceit 14 10 13 15...
Consider the following system: Byte addressable 16-bit addresses 256B pages Single level Page Table System The system utilizes a fully-associative TLB with 4 entries and an LRU replacement policy. Given the access pattern and timings below, complete the following table. Assume the TLB begins initially empty and the cache is physically addressed NOTE: Access times are not inclusive and components are accessed sequentially. Time to update the TLB is negligible, everything else that needs to be updated will require a...
Problem 6 (13 points) The page table below is for a system with 16-bit virtual as well as physical addresses and with 4,096-byte pages. The reference bit is set to 1 when the page has been referenced. Periodically, a thread zeroes out all values of the reference bit. A dash for a page frame indicates the page is not in memory. The LRll pagg-replacement algorithm is used. The numbers are given in decimal Page Frame eferepceit 14 10 13 15...
3. Virtual Memory (20 points) An ISA supports an 8 bit, byte-addressable virtual address space. The corresponding physical memory has only 256 bytes. Each page contains 32 bytes. A simple, one-level translation scheme is used and the page table resides in physical memory. The initial contents of the frames of physical memory are shown below. VALUE address size 8 bit byte addressable each byte of addressing type memory has its own address 32 B page size physical memory size 256...
1) The following page table illustrates a system with 12-bit virtual and physical addresses and 256-byte pages. Free page frames are to be allocated in the order9 F, D. A dash for a page frame indicates that the page is not in memory. (4 points) Page Page-Frame 0x4 OxB 0 2 4 0x2 0x0 0xC 7 Convert the following virtual addresses to their equivalent physical addresses irn hexadecimal. All numbers are given in hexadecimal. In the case of a page...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago