What is memory interleaving, Computer Engineering

Assignment Help:

Q. What is Memory Interleaving?

In this scheme main memory is splitted in 'n' equal-size modules and CPU has separate Memory Base register and Memory Address Register for every memory module. Additionally CPU has 'n' instruction register and a memory access system.  When a program is loaded in main memory its successive instructions are stored in successive memory modules. For illustration if n=4 and four memory modules are M1, M2, M3, and M4 then 1st instruction would be stored in M1, 2nd in M2, 3rd in M3, 4th in M4, 5th in M1, 6th in M2 and so on.  Now at the time of execution of program when processor issues a memory fetch command then memory access system creates n consecutive memory addresses and places them in Memory Address Register in right order. A memory read command interprets all 'n' memory modules concurrently and retrieves 'n' consecutive instructions as well as loads them in the 'n' instruction registers. So every fetch for a new instruction results in loading of 'n' consecutive instructions in 'n' instruction registers of CPU. Because instructions are generally executed in sequence in which they were written, availability of N successive instructions in CPU avoids memory access after every instruction execution and total execution time speeds up. Apparently fetch successive instructions aren't useful when a branch instruction is encountered at the time of course of execution. This is because they need new set of 'n' successive instructions, overwriting previously stored instructions that were loaded however some of which weren't executed. The method is very efficient in minimising memory-processor speed mismatch since branch instructions don't take place often in a program.

Figure below explains memory interleaving architecture. The Figure shows a 4- way (n=4) interleaved memory system.

670_What is Memory Interleaving.png

Figure: A 4-way Interleaved Memory


Related Discussions:- What is memory interleaving

Explain j2ee, With respect to security, which one is the better choice? ...

With respect to security, which one is the better choice? .Net or J2EE? Explain? As per majority programmers .NET is the best one which have single vendor compare to, the

How do you recognize the performance bottlenecks, Performance Bottlenecks c...

Performance Bottlenecks can be identified by using monitors. These monitors might be application server monitors, database server monitors, web server monitors and network monitors

Explain csmsginterface() function with predefined protocol, Explain CSMsgIn...

Explain CSMsgInterface() Function with Predefined Protocol  A REQUEST structure is created for each message sent to the server. Messages passed to CSMsgInterface() as *dataMSG

Explain about the public key cryptography, Explain about the Public Key Cry...

Explain about the Public Key Cryptography. Public Key Cryptography: It is a cryptographic system which uses two keys as a public key identified to everyone and a private

Illustrate high performance fortran, In 1993 High Performance FORTRAN Forum...

In 1993 High Performance FORTRAN Forum which is a group of academicians and many leading software and hardware vendors in field of parallel processing established an informal langu

Computer architecture, Explain division and its restoring and non-restoring...

Explain division and its restoring and non-restoring techniques?

Define process, Define Process. Process: It is a program in executi...

Define Process. Process: It is a program in execution; process execution should progress into sequential fashion. Process contains: program counter stack dat

What is cache memory, Q. What is Cache Memory? Cache memory is a very f...

Q. What is Cache Memory? Cache memory is a very fast and small memory between CPU and main memory whose access time is closer to processing speed of CPU. It behaves as a high-s

?????, c program??????????

c program??????????

Multi tasking environment, Q. Explain about Multi tasking environment? ...

Q. Explain about Multi tasking environment? Multi tasking uses parallelism by: 1) Pipelining functional units are pipe line mutually 2) Simultaneously employing multiple

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