Techopedia defines disk cache as; A disk cache is a cache memory that is used to speed...

Techopedia defines disk cache as;

A disk cache is a cache memory that is used to speed up the process of storing and accessing data from the host hard disk. It enables faster processing of reading/writing, commands and other input and output process between the hard disk, the memory and computing components.

A fundamental principle of programming is that any system interacting with multiple components requires the use of buffers. Buffers insulate components from each other’s duty cycles, but too many buffers can impede the performance of the system.

Let’s discuss the use of cache and buffers considering the following:

What are the performance considerations?
What is stored in the disk cache memory? What is a soft disk cache?
What are the characteristics that differ between cache and buffers?
Given an example where buffering and cache usage would have an impact.
What is a buffer overflow? When might this happen?

Expert Solution

venereology answered 1 year ago

Q1/ A- What is cache memory and how it works? B- What are the three cache...

Q1/ A- What is cache memory and how it works? B- What are the three cache mapping approaches and what is the pros and cons of each approach? C- What is the cache replacement policies and read/write policies?

Suppose a computer using direct mapped cache has 232 bytes of main memory and a cache...

Suppose a computer using direct mapped cache has 232 bytes of main memory and a cache of 1024 blocks, where each block contains 32 bytes. [2] How many blocks of main memory does this computer have? [4] Show the format of a memory address as seen by cache; be sure to include the field names as well as their sizes. [3] Given the memory address 0x00001328, to which cache block will this address map? (Give you answer in decimal.) A...

In a memory system, when the access time of the cache is 10ns and the access...

In a memory system, when the access time of the cache is 10ns and the access time of the main memory is 50ns, what is the hit ratio of the cache if the effective access time is 10% larger than the access time of the cache? (Up to 4 digits below the decimal point) please detail explanation

1. Describe the purpose of some components in Internal Memory of a computer. 2. how Cache Memory...

1. Describe the purpose of some components in Internal Memory of a computer. 2. how Cache Memory functions

briefly explain the principle that a cache improves the performance of memory access. For a computer,...

briefly explain the principle that a cache improves the performance of memory access. For a computer, suppose that the access to the cache takes 6 ns, and the access to the memory takes 40 ns, what’s effective access time (EAT) given a hit ratio of 90%?

A disk rotates with constant angular acceleration. The initial angular speed of the disk is 2?...

A disk rotates with constant angular acceleration. The initial angular speed of the disk is 2? rad/s. After the disk rotates through 20? radians, the angular speed is 3? rad/s. (a) What is the magnitude of the angular acceleration? rad/s2 (b) How much time did it take for the disk to rotate through 20? radians? s (c) What is the tangential acceleration of a point located at a distance of 3 cm from the center of the disk? m/s2

In the real time world, in which type of servers can we increase the Cache Memory....

In the real time world, in which type of servers can we increase the Cache Memory. How it would be beneficial for the performance of the server?.

1. What does the term transparent mean when applied to a memory cache? 2. Do the...

1. What does the term transparent mean when applied to a memory cache? 2. Do the terms fetch-execute and fetch-store refer to the same concept? Explain.

a) consider a direct mapped cache with 10 blocks of 10 words each. Suppose main memory...

a) consider a direct mapped cache with 10 blocks of 10 words each. Suppose main memory is 1000 words. For ewach memory address below say what cache block it maps to, what is the offset, and what is the tag. 934, 666, 348, 522

Assume a byte-addressable memory has 64K bytes. Blocks are 8 bytes in length and the cache...

Assume a byte-addressable memory has 64K bytes. Blocks are 8 bytes in length and the cache consists of 4K bytes. Show the format for a main memory address assuming a 4-way set associative cache mapping scheme. Include the field names as well as their sizes.

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