How many tasks real-time application contain

Assignment Help Computer Engineering
Reference no: EM132223

Question

You use a 1 GHz system with paged virtual memory for doing a real-time application. No other application is running on the system. A real time application is one where each task should be finished within a guaranteed time bound. In this particular real-time application, there are many tasks; each runs exact same code except with different data each time. Each real-time task reads 20 bytes from an I/O device, does some processing on it, and writes updated 20 bytes of data back to I/O device. I/O reads or writes are performed at 20 MB/sec. The code to process 20 bytes has a total of 10 loads and stores, and takes 10000 cycles while all memory accesses are cache hits. These loads and stores can access wherever in virtual memory. System transfers control to another task with an overhead of 1000 cycles.


Every memory access takes 25 ns and each disk page transfer from virtual memory swap space takes up to 2 ms. In the worst case a load or store might require 4 memory accesses and 2 disk transfers. How many real-time tasks be able to be guaranteed to run on this system per second in worst case?

 

 

Reference no: EM132223

Questions Cloud

Evaluate incorporation plan : Except the stock sale is an integral part of the incorporation plan
How to write a class named dayofyear that gets an integer : How to write a class named DayOfYear that gets an integer Day 2 would be January 2 Day 32 would be February 1 Day 365 would be December 31
How many cars in every team called chevy and ford : How many cars in every team called Chevy and Ford There are eight cars in every team called Chevy and Ford. One car from each team races its opponent on drag strip.
How to illustrate a memory map for a system : Illustrate a memory map for a system with a memory capability of 512MB. Each memory location in system is 8 bits.
How many tasks real-time application contain : How many tasks real-time application contain In this particular real-time application, there are many tasks; each runs exact same code except with different data each time.
Compute journal entries of retail store : Compute journal entries to record the above transactions for a retail store.
Which references source page fault with lru page replacement : Which references source a page fault with LRU page replacement policy? Illustrate your intermediate working in table below with three columns.
Write a program that mimics a flop-turn-river of poker game : Write down a program that mimics a flop-turn-river of a poker game. I must have three buttons titled Deal, Shuffle and Start Over.
Evaluate the income statement : Evaluate the income statement in the given case.

Reviews

Write a Review

 

Computer Engineering Questions & Answers

  Hardware support to memory management

Study any two multicore processor architecture and discuss the following features briefly

  Encipher a message using a keyword

The first program will encipher a message using a keyword and second program will decipher a message using a keyword.

  Library management system

Prepare a module which can exhibit the Library Management System

  Mathematics in computing

Write the selection sort algorithm

  Explain interval and arithmetic coding

Evaluate the cumulative distribution function and the binary intervals

  How to run and modify marie program

How to run and modify marie program Include a decision before storing and outputing result. If  value of the result is not positive (so zero or negative), set  Result value to the value ZERO (0)

  Intermediate programming

Design a program that reads in a text file with drawing commands and then outputs a bitmap with all the items drawn correctly

  Find minimal cover and identify all possible candidate keys

Find minimal cover and identify all possible candidate keys - Functional Dependencies

  Prepare a proposal to deploy windows server

Prepare a proposal to deploy Windows Server onto an existing network based on the provided scenario.

  Security vulnerability

What is the security vulnerability of this solution

  Spreadsheet model of the heat transfer situation

Spreadsheet model of the heat transfer situation

  Which references source page fault with lru page replacement

Which references source a page fault with LRU page replacement policy? Illustrate your intermediate working in table below with three columns.

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