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

naming convention in local scope variables, Description Variables show ...

Description Variables show values that can be changed within a procedure or function. Local scope variables are placeholders that reside within a function- or a script-body.

Neural networks, Given a collection of DNA sequences (it can be downloaded ...

Given a collection of DNA sequences (it can be downloaded in the assignment directory), where true binding sites as positive examples have been provided. The objective of this assi

Explain traffic intensity in networking, Explain Traffic Intensity in netwo...

Explain Traffic Intensity in networking. Traffic Intensity: The traffic load on a given network may be on interoffice trunk lines, the local switching unit or other common s

What is the window of the working set of a process, What is the window of t...

What is the window of the working set of a process? The window of the working set of a method is the total number in which the method had referred the set of pages in the work

What are the different pascal standards, The original Pascal standard was a...

The original Pascal standard was an unofficial standard documented by the author, Nicklaus Wirth, in "The Report". The first official standard was ISO 7185 issued in 1983. This was

Disc shapes and diameters - computer architecture, Disc shapes and diameter...

Disc shapes and diameters:     A Mini-CD is 8 centimeters in diameter. The digital data on a CD start at the center of the disc and proceeds toward the edge, whi

Explain different parameter passing mechanisms to a function, What are the ...

What are the different parameter passing mechanisms to a function? The different parameter-passing mechanisms are given below: 1.   Call by value 2.   Call by value-resu

What are the types of calendars in a single interface, What are the types o...

What are the types of calendars in a single interface? Member Event calendar helps users manage their personal time, Kept track of meetings with others, and so on. Tea

What decision has the highest expected value, The Prisoner's Dilemma is a w...

The Prisoner's Dilemma is a well-known problem in game theory. Two thieves are arrested and held in custody separately. The police offer each the same deal. Inform on your partn

What is post in terms of bios, For the one who still has no idea about the ...

For the one who still has no idea about the BIOS on your PC, notice when you first turn on your PC or laptop a few screens pop up. It may be a logo such as DELL or HP or ASUS, Tyan

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