Explain garbage collection, Computer Engineering

Assignment Help:

Explain Garbage collection

In this method two passes are made over the memory to identify new areas. In the first pass it traverses all pointers pointing to allocated areas and marks the memory areas which are in use. The second pass finds out all unmarked areas and declares them to be free. The garbage collection overheads are not incremental. They are acquired every time the system runs out of free memory to allocate to new requests.  
Two major approaches to reuse free memory area in a heap are:

First-fit:  Allocate the first hole which is big enough. Searching can start either at the starting of the set of holes or where the previous first-fit search ended. Searching is stopped when a free hole is found that is large enough

Best-fit:  Allocate the smallest hole which is big enough; whole list is searched, unless ordered by size.  This strategy generates the smallest leftover hole.   


Related Discussions:- Explain garbage collection

What is a table pool, What is a table pool? A table pool (or pool) is ...

What is a table pool? A table pool (or pool) is used to join several logical tables in the ABAP/4 Dictionary.  The definition of a pool having of at least two key fields and a

Features and utilities available in java, Explain the features and utilitie...

Explain the features and utilities available in java, which makes it suitable for developing e-commerce applications.     1.  In a network, the transmission of passive informati

Utility functions - artificial intelligence, Utility Functions - artificial...

Utility Functions - artificial intelligence: A goal based on an agent for playing chess is infeasible: at every moment it decides which move to play next, it sees whether that

Explain potential of parallelism, Potential of Parallelism Problems in ...

Potential of Parallelism Problems in the actual world differ in respect of the amount of inherent parallelism intrinsic in respective problem domain. Some problems can be easil

Explain remote procedure call, Explain Remote Procedure Call. RPC (Remo...

Explain Remote Procedure Call. RPC (Remote Procedure Call) : The facility which was created to help the programmers write client -server software is termed as Remote Procedu

Determine about the virtual private networks, Virtual Private Networks (VPN...

Virtual Private Networks (VPN) In order to encrypt/decrypt all the communication network traffic that passes through the Internet or Intranet, a VPN uses software or hardware.

Explain normans execution-evaluation cycle model, Question 1: (a) How ...

Question 1: (a) How would you explain human reasoning? (b) Explain the different types of human reasoning? Question 2: (a) What are the computational factors affec

Returns information about present virtual machine, Q. Returns information a...

Q. Returns information about present virtual machine? int pvm_parent( void ) Returns the tid of process which spawned the calling process.  int pvm_tidtohost(

Write a verilog code to swap contents of two registers, Write  a  verilog  ...

Write  a  verilog  code  to  swap  contents  of  two registers  with  and without  a  temporary register? With temp reg : always @ (posedge clock) begin temp=b; b

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