mofessor,S.aw-Hilltion... V!!!ar textbookAs described in COD Section 5.7 (Virtual memory), virtual memory uses a page table to track the mapping of virtual addresses tophysical addresses. This exercise shows how this table must be updated as addresses are accessed. The following data constitute astream of virtual byte addresses as seen on a system. Assume 4 KiB pages, a four-entry fully associative TLB, and true LRUreplacement. If pages must be brought in from disk, increment the next largest page number.TLBPage TableDecimal 4669 2227 13916 34587 48870 12608 49225hex 0x123d 0x08b3 0x365c 0x871b Oxbee6 0x3140 0xc049Valid1110Index012345(a) For each access shown above, list6789abTagOxbOx70x30x4Valid100111010011▪ whether the access is a hit or miss in the TLB,▪ whether the access is a hit or miss in the page table,▪ whether the access is a page fault,the updated state of the TLB.Physical PageNumber12469Time Since LastAccess4ASK AN EXPERI137Physical Page or in Disk5DiskDisk6.911Disk4DiskDisk312(b) Repeat Part a, but this time use 16 KiB pages instead of 4 KiB pages. What would be some of the advantages of having a largerpage size? What are some of the disadvantages?JL15VX MATH SOLthe mapping of virtual accessed. The following dassociative TLB, and tru492256083140 0xc049ince Lastcess4137Diskme of the advantages

As described in COD Section 5.7 (Virtual memory), virtual memory uses a page table to track the mapping of virtual addresses to physical addresses. This exercise shows how this table must be updated as addresses are accessed. The following data constitute a stream of virtual byte addresses as seen on a system. Assume 4 KiB pages, a four-entry fully associative TLB, and true LRU replacement. If pages must be brought in from disk, increment the next largest page number. TLB Page Table Decimal 4669 2227 13916 34587 48870 12608 49225 hex 0x123d 0x08b3 0x365c 0x871b Oxbee6 0x3140 0xc049 Valid 1 1 1 0 Index 0 1 (a) For each access shown above, list 23456 3 7 8 9 a b Tag Oxb 0x7 0x3 0x4 - whether the access is a page fault, the updated state of the TLB Valid 1 0 0 1 1 1 0 1 0 0 1 1 - whether the access is a hit or miss in the TLB, ▪ whether the access is a hit or miss in the page table, Physical Page Number 12 4 6 9 Time Since Last Access 4 1 3 7 Physical Page or in Disk 5 Disk Disk 6. 9 11 Disk 4 Disk Disk 3 12 (b) Repeat Part a, but this time use 16 KiB pages instead of 4 KiB pages. What would be some of the advantages of having a larger page size? What are some of the disadvantages?

As described in COD Section 5.7 (Virtual memory), virtual memory uses a page table to track the mapping of virtual addresses to physical addresses. This exercise shows how this table must be updated as addresses are accessed. The following data constitute a stream of virtual byte addresses as seen on a system. Assume 4 KiB pages, a four-entry fully associative TLB, and true LRU replacement. If pages must be brought in from disk, increment the next largest page number. TLB Page Table Decimal 4669 2227 13916 34587 48870 12608 49225 hex 0x123d 0x08b3 0x365c 0x871b Oxbee6 0x3140 0xc049 Valid 1 1 1 0 Index 0 1 (a) For each access shown above, list 23456 3 7 8 9 a b Tag Oxb 0x7 0x3 0x4 - whether the access is a page fault, the updated state of the TLB Valid 1 0 0 1 1 1 0 1 0 0 1 1 - whether the access is a hit or miss in the TLB, ▪ whether the access is a hit or miss in the page table, Physical Page Number 12 4 6 9 Time Since Last Access 4 1 3 7 Physical Page or in Disk 5 Disk Disk 6. 9 11 Disk 4 Disk Disk 3 12 (b) Repeat Part a, but this time use 16 KiB pages instead of 4 KiB pages. What would be some of the advantages of having a larger page size? What are some of the disadvantages?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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