6-Virtual memory use a page table to track the mapping of virtual address to physical addresses. The following data constitutes a stream of virtual addresses as seen on a system. Assume 8KİB pages, a 4- entry fully associative TLB, and true LRU replacement. If pages must be brought in from disk, multiply the next largest page number by two. 2227, 2226, 13916, 12608,49225, 34587,49240 Page Table Physical Page Number Valid TLB Valid Tag Physical page LRU number 1 Disk Disk 1 11 12 1 6 1 7 4 3 1 9. 1 3 2 11 1 4 9. 1 Disk 4 Disk Disk 12 LRU= 3 belongs to the oldest entry Given the address stream shown, the initial TLB and page table states provided above, show the final state of the system. Also list for each reference if it is a hit in the TLB, a hit in the page table, or a page fault.

6-Virtual memory use a page table to track the mapping of virtual address to physical addresses. The following data constitutes a stream of virtual addresses as seen on a system. Assume 8KİB pages, a 4- entry fully associative TLB, and true LRU replacement. If pages must be brought in from disk, multiply the next largest page number by two. 2227, 2226, 13916, 12608,49225, 34587,49240 Page Table Physical Page Number Valid TLB Valid Tag Physical page LRU number 1 Disk Disk 1 11 12 1 6 1 7 4 3 1 9. 1 3 2 11 1 4 9. 1 Disk 4 Disk Disk 12 LRU= 3 belongs to the oldest entry Given the address stream shown, the initial TLB and page table states provided above, show the final state of the system. Also list for each reference if it is a hit in the TLB, a hit in the page table, or a page fault.

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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1. Caches are important to providing a high-performance memory hierarchy to processors. Below is a list of 32-bit memory address references, given as word addresses. 42, 137, 66, 50, 38, 225, 173, 22, 19, 88, 51, 43 a. For each of these references, identify the binary address, the tag, and the index given a direct mapped cache with 16 one-word blocks. Also list if each reference is a hit or a miss, assuming the cache is initially empty. b. For each of these references, identify the binary address, the tag, and the index given a direct mapped cache with two-word blocks and a total size of 8 blocks. Also list if each reference is a hit or a miss, assuming the cache is initially empty. Please explain the process.
Assume a cache of 1 MB organized as 32 bytes each line. The main memory is 256 MB. a. Determine the number of blocks in main memory b. Determine how to split the address (s-r, r, w) for direct mapping. c. Determine how to split the address (s, w) for associative mapping. d. Determine how to split the address (s-d, d, w) for set-associative each cache set is 4 lines of the cache.
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Giventhe following assignment of some program’s virtual pages to physical pages in a system with 4 KiB byte pages, what physical memory address corresponds to virtual address 20000? (All values are given in decimal.)
3
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Suppose a byte-addressable memory with 4 frames of size 8 bytes each and a paged virtual memory using a three-entry TLB. Suppose a process P has 8 pages of virtual memory space. Assume the following TLB and page table for process P: TLB Page Framell Framet Valid 1. 12 1. Page Table Assume process P generates a memory request with virtual address 0X3A. What is its corresponding physical address? You may represent the address in binary or hexadecimal notation (if hexadecimal notation, prefix with Ox). If the request causes a page fault, enter page fault.