What dose Direct mapping? Used to store content and addresses of the memory word The RAM is used to store data and some of the data is stored in the Cache. The address space is divided into two parts index field and tag field. The tag field is used to store the tag field whereas the rest is stored in the main memory. Blocks of cache are grouped into sets, and the mapping allows a block of main memory to reside in any block of a specific set. Any block of Main memory can potentially reside in any cache block position. This is much more flexible mapping method.

What dose Direct mapping? Used to store content and addresses of the memory word The RAM is used to store data and some of the data is stored in the Cache. The address space is divided into two parts index field and tag field. The tag field is used to store the tag field whereas the rest is stored in the main memory. Blocks of cache are grouped into sets, and the mapping allows a block of main memory to reside in any block of a specific set. Any block of Main memory can potentially reside in any cache block position. This is much more flexible mapping method.

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

See similar textbooks

Similar questions

In a computer architecture with a memory cell size of 2 bytes, what is the total number of cells to be allocated in memory for a long array of 80 elements.
12 Allocating memory slightly larger than requested memory is called: Internal fragmentation Paging External fragmentation Compaction
A request that cannot be satisfied in the cache is issued by the processor while the write buffer returns a block to main memory. What should happen in this case?
How exactly does the process of dynamic memory allocation function when it comes to allocating memory?Is it feasible to recognize and explain the differences between the many types of dynamic memory allocation and allocators?
Each element in the interrupt vector database receives exactly how many bytes?
Memory Management: Select all of the following statements that are true. The memory management unit (MMU) maps virtual to physical addresses. When using a single-partition allocation scheme, the main memory is divided into two partitions. The frame table that is applied in systems that use paging is a per-process data structure. Indirect relative addressing refers to an addressing scheme in which the memory address to be accessed is specified explicitly. Segmentation is a memory management approach in which memory areas (segments) allocated to processes are defined by their starting address (base) and length.
What are some of the several ways that locality may affect the formation of a memory hierarchy?
Main memory size is 16 pages. Size of swap file on hard disk is 64 pages. Operating system locks down pages 0, 1, 2 and 7 in the main memory. Two programs are started and both are provided with a virtual address space of 10 pages. Initially operating system allocates 5 pages of main memory for each program and the rest from swap file. Virtual address space of each program starts from page 0. Construct page tables for both programs at program startup. A page table consists of P-bit which tells if the page is present in the main memory (1 = page is in main memory) and address of the page. Address tells either real address in main memory or the address of the page in swap file. b. A computer with a paged virtual memory system executes two load instructions that are adjacent to each other in memory. Describe the worst case scenario (in terms of performance) that can occur during the execution of the two instructions and explain under which conditions this case occurs. How does this affect…
When a block is being sent back to main memory from the write buffer, what should happen if the processor delivers a request that is not fulfilled in the cache?
Problem DescriptionThe Tower of Hanoi ProblemTower of Hanoi is a mathematical game consisting of three pegs (P1, P2 and P3) and a stack of disks of different diameters. Disks can slide onto any peg. The game starts with all disks stacked on P1 and ends at the point where all disks stacked on P3. The game player is required to move all disks from P1 to P3 using P2 as a buffer. Three rules must be followed when playing the game(1) Only one disk may be moved at a time.(2) Each move involves taking a disk on the top of a peg and place it on the top of another peg. (3) A disk of a larger diameter should never be placed on top of a disk of a smaller diameter. The diagrams below demonstrate the starting state and goal state of the game with 5 disks.Starting state Goal stateP1 P2 P3 P1 P2 P32RequirementsIn this assignment, students are required to solve the Tower of Hanoi (with five disks) using state space search algorithms implemented in Python.Two state space search algorithms: (1) a blind…
What happens if a processor makes a request that cannot be satisfied by the cache when it is moving a block back to main memory from the write buffer?
The write buffer will return a block to main memory while the CPU submits a cache-unmet request. What may happen next?