Illustrate the cache memory operation, Computer Engineering

Assignment Help:

Q. Illustrate the Cache Memory Operation?

It comprises a copy of a part of main memory contents. When a program is running and CPU tries to read a word of memory (instruction or data) a check is made to decide if word is in cache. If so that word is delivered to CPU from cache. If not then a block of main memory comprising some fixed number of words including requested word is read in the cache and then requested word is delivered to CPU. Due to the feature of locality of reference when a block of memory word is fetched in cache to satisfy a single memory reference it is expected that there will soon be references to other words in that block. Which is the next time CPU attempts to read a word it's very probable that it finds it in cache and saves time required to read word from main memory.

Various computer systems are designed to have two separate cache memories known as data cache and instruction cache. Instruction cache is used for storing program instruction and data cache is used for storing data. This allows faster identification of availability of accessed word in cache memory as well as it helps in further improving processor speed.  Several computer systems are also designed to have multiple levels of caches (like level one and level two caches generally referred to as L1 and L2 caches). L1 cache is smaller than L2 cache and is used to store more often accessed data/instruction as compared to those in L2 cache.

409_Illustrate the Cache Memory Operation.png


Related Discussions:- Illustrate the cache memory operation

Critical path analysis, Given the information provided in Table 1: ...

Given the information provided in Table 1: Prepare an Activity on the Node (AON) Network Diagram ( I recommend you  use MS Project or any drawing tool); Prepare

Elaborate state space search briefly, Artificial Intelligence 1. Explai...

Artificial Intelligence 1. Explain about artificial intelligence? What are the achievements of AI? 2. Elaborate state space search briefly. 3. Prove that A* is optimal.

Find out the number of control lines for 32 to 1 multiplexer, The number of...

The number of control lines for 32 to 1 multiplexer is ? Ans. For 32 (2 5 ) the number of control lines and to select one i/p between them total 5 select lines are needed.

Paging, specification of paging ram size is 12 frames

specification of paging ram size is 12 frames

Explain the for loop, Explain The for loop The for loop is frequently ...

Explain The for loop The for loop is frequently used, usually where the loop will be traversed a fixed number of times. It is very flexible, and novice programmers should take

What is macro-expansion, What is macro-expansion? Macro calls lead to m...

What is macro-expansion? Macro calls lead to macro expansion. Throughout macro expansion, the macro call statement is replaced through a sequence of assembly statements.

Classification of parallel computers , Classification Of Parallel Computer...

Classification Of Parallel Computers  Introduction Parallel computers are those that underline the parallel processing among the operations in some way. In the last unit,

Explain about heterogeneous linked list, If you are using C language to imp...

If you are using C language to implement the heterogeneous linked list, what pointer type will you use? The heterogeneous linked list having different data types in its nodes a

Draw a circuit of TTL gates with Wired-AND connection, Draw a circuit of TT...

Draw a circuit of TTL gates with Wired-AND connection and explain its operation. Wired - AND Connection In digital IC's NAND and NOR gates are most frequently used. For th

What is indirect addressing mode explain, Q. What is Indirect Addressing Mo...

Q. What is Indirect Addressing Mode explain? Indirect Addressing Mode In the indirect addressing modes operands employ registers to point to locations in memory. So it is

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd