Performance and issues in pipelining-throughput, Computer Engineering

Assignment Help:

Performance and Issues in Pipelining

Throughput: Throughput of a pipeline can be defined as the number of results that have been getting per unit time. It can be denoted as:

                                                   T = n / [m + (n-1)]. c = E / c

Throughput signifies the computing power of the pipeline.

Maximum speed up, throughput and efficiency are the perfect cases but these are not achieved in the useful cases, as the speedup is limited due to the many factors:

  • Data dependency between successive tasks:There might be dependencies among the instructions of two tasks used in the pipeline. For example, one instruction cannot be going ahead until the previous instruction returns the results, as both are interdependent. One more instance of data dependency will be when that both instructions try to modify the similar data object. These are known as data hazards.
  • Resource Constraints: When resources are not available at the time of implementation then delays are caused in pipelining. For example, if single common memory is used for both instructions and data and there is require to read/write and fetch the instruction at the similar time then only one can be carried out and the other has to stay. One more example is of limited resource like implementation unit, which may be busy at the required time.
  • Branch Instructions and Interrupts in the program:A program is not a directly flow of sequential instructions. There may be branch instructions that modify the normal flow of program, which delays the pipelining implementation and affects the performance. Likewise, there are interrupts that postpones the implementation of next instruction until the interrupt has been serviced. Interrupt and the Branches have harmful effects on the pipelining.

Related Discussions:- Performance and issues in pipelining-throughput

Order in which filters get implemented, If we have multiple filters implet...

If we have multiple filters impleted, what is the order in which these filters get implemented?   Ans) 1. Authorization filters 2. Response filters 3. Action filters

Which is the slowest sorting procedure, The slowest sorting procedure is   ...

The slowest sorting procedure is    Bubble Sort is the slowest sorting process.

Database management system, Consider the following instance of the Students...

Consider the following instance of the Students relation, sorted by gpa. sid name login age gpa 53831 Madayan madayan@music 11 1.8 53832 Guldu guldu@music 12 2.0 53688 Smith smith

What is the session, What is the session.  Session is a collection of v...

What is the session.  Session is a collection of various groups of method. Every session is assigned to a single control terminal. This terminal is either a pseudo-device. or a

What is the purpose of linq providers in linq, LINQ Providers are a set of ...

LINQ Providers are a set of classes that takes a LINQ query and dynamically produces a method that implements an equivalent query against an exact data source.

Differentiate between http and ftp, Differentiate between http and ftp. ...

Differentiate between http and ftp. HTTP and FTP were developed to make Internet transmission better. FTP is utilized to exchange files among computer accounts, to transfer

Difference between a window and a frame?, The Frame class extends Window to...

The Frame class extends Window to describe a main application window that can have a menu bar. A window can be modal.

What is repository info. systems, What is Repository Info. Systems? It ...

What is Repository Info. Systems? It is a tool with which you can create data stored in the ABAP/4 Dictionary available

Kirchoff''s voltage law , Kirc hoff's Voltage Law   The sum ...

Kirc hoff's Voltage Law   The sum of all the voltage drops around a closed circuit loop will add to zero  V1+(-V2)+(-V3)+(-V4)= 0

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