Suppose we have 2^20 bytes of virtual memory and 216 bytes of physical main memory. Suppose...
Suppose we have 2^20 bytes of virtual memory and 216 bytes of
physical main memory.
Suppose the page size is 2^8 bytes.
a) How many pages are there in virtual memory?
b) How many page frames are there in main memory?
c) How many entries are in the page table for a process that uses
all of virtual memory?
Homework Answers
Add Answer to:
Suppose we have 2^20 bytes of virtual memory and 216 bytes of
physical main memory.
Suppose...
Suppose we have 212 bytes of virtual memory and 27 bytes of physical main memory. Suppose the pag...
Suppose we have 212 bytes of virtual memory and 27 bytes of physical main memory. Suppose the page size is 24 bytes. a) How many pages are there in virtual memory? b) How many page frames are there in main memory? c) How many entries are in the page table for a process that uses all of virtual memory?
Exercise l: Suppose that we have a virtual memory space of 28 bytes for a given process and physical memory of 4 page frames. There is no cache. Suppose that pages are 32 bytes in length. 1) How...
Exercise l: Suppose that we have a virtual memory space of 28 bytes for a given process and physical memory of 4 page frames. There is no cache. Suppose that pages are 32 bytes in length. 1) How many bits the virtual address contain? How many bits the physical address contain? bs Suppose now that some pages from the process have been brought into main memory as shown in the following figure: Virtual memory Physical memory Page table Frame #...
A computer uses a byte-addressable virtual memory system with a four-entry TLB and a page table...
A computer uses a byte-addressable virtual memory system with a four-entry TLB and a page table for a process P. Pages are 16 bytes in size. Main memory contains 8 frames and the page table contains 16 entries. a. How many bits are required for a virtual address? b. How many bits are required for a physical address?
Q1. Suppose we have a virtual memory of size 2 Terabytes (2048GB, or 241 bytes), where...
Q1. Suppose we have a virtual memory of size 2 Terabytes (2048GB, or 241 bytes), where pages are 8KB (213 bytes) each, and the machine has 4GB (232 bytes) of physical memory. a) Compute the number of page table entries needed if all the pages are being used. b) Compute the size of the page table if each page table entry also required 4 additional bits (valid, protection, dirty, use). Q2. For this problem, you are given a...
Suppose you have a byte-addressable virtual address memory system with 8 virtual pages of 64 bytes each
Suppose you have a byte-addressable virtual address memory system with 8 virtual pages of 64 bytes each, and 4-page frames. Assuming the following page table, answer the questions below: Page #Frame #Valid Bit0111312-03014215-06-07-0a) How many bits are in a virtual address? b) How many bits are in a physical address? c) What physical address corresponds to the following virtual addresses (if the address causes a page fault, simply indicate this is the case)? 1) Ox00 2) 0x44 3) OxC2 4) 0x80
Virtual memory address translation: a) Consider a machine with a physical memory of 8 GB, a...
Virtual memory address translation: a) Consider a machine with a physical memory of 8 GB, a page size of 4 KB, and a page table entry size of 4 bytes. How many levels of page tables would be required to map a 52-bit virtual address space if every page table fits into a single page? b) Without a cache or TLB, how many memory operations are required to read or write a page in physical memory? c) How much physical...
A certain computer provides its users with a virtual memory space of 2^32 bytes. The computer...
A certain computer provides its users with a virtual memory space of 2^32 bytes. The computer has 2^18 bytes of physical memory. The virtual memory is implemented by paging, and the page size is 4,096 bytes. A user process generates the virtual address 11123456 hexadecimal. a. How many entries are there in the page table? b. Explain how the system establishes the corresponding physical location.
The physical memory is split into physical pages (aka page frames), which have equal size. We...
The physical memory is split into physical pages (aka page frames), which have equal size. We know that the number of page frames in the physical memory equals the number of bytes in a page frame. We also know that physical addresses have 12 bits. How many bytes are in a page frame?
4. Assume that we have a machine with the following memory specifications: Virtual addresses are 32...
4. Assume that we have a machine with the following memory specifications: Virtual addresses are 32 bits wide Physical addresses are 26 bits wide . Page size is 16 Kbytes 4/A) How many pages are in the virtual memory space? 4/B) How many page frames are in the physical memory space? 4/C) If each page table entry consists of a physical frame number, 1 present/absent bit Answers Pages .Page Frames and 1 dirty/clean bit (which shows if the page has...
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...
Exercise l: Suppose that we have a virtual memory space of 28 bytes for a given process and physical memory of 4 page frames. There is no cache. Suppose that pages are 32 bytes in length. 1) How many bits the virtual address contain? How many bits the physical address contain? bs Suppose now that some pages from the process have been brought into main memory as shown in the following figure: Virtual memory Physical memory Page table Frame #...
4. Assume that we have a machine with the following memory specifications: Virtual addresses are 32 bits wide Physical addresses are 26 bits wide . Page size is 16 Kbytes 4/A) How many pages are in the virtual memory space? 4/B) How many page frames are in the physical memory space? 4/C) If each page table entry consists of a physical frame number, 1 present/absent bit Answers Pages .Page Frames and 1 dirty/clean bit (which shows if the page has...
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...
Most questions answered within 3 hours.
-
What is the net ionic equation for the reaction that would occur
when an aqueous solution...
asked 1 minute ago -
A
student bought $1000 worth of furniture. What is the equivalent
annual cost if it is...
asked 9 minutes ago -
What taboo subject did Ida B. Wells suggest was consensual
between black men and white women?...
asked 1 hour ago -
You have just been hired by the EPA to help with the new gas
mileage standards...
asked 2 hours ago -
4) A firm is hit by increases in its wage rate, w.
a) How does this...
asked 2 hours ago -
A square current loop 5.4 cm on each side carries a 510 mA
current. The loop...
asked 4 hours ago -
What are five tips in conducting knowledge assessment/literature
review research? Each of these tips needs to...
asked 5 hours ago -
Antigen presenting cells link innate and adaptive immune
responses. In the theoretical scenario where phagosomes cannot...
asked 5 hours ago -
Dealing with conflict, in my opinion, is a skill and an art. I
believe that those...
asked 6 hours ago -
6. A long straight wire with circular cross section and radius
1.5 cm carries a 1.2...
asked 6 hours ago -
Deacon Corporation has provided the following financial data
from its balance sheet and income statement:
Year...
asked 7 hours ago -
List and discuss at least three variables from everyday life for
which you expect the variable ...
asked 7 hours ago