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

Describe memory and memory unit, Q. Describe Memory and Memory unit? In...

Q. Describe Memory and Memory unit? Input devices can fetch instructions or data only sequentially though a program may or may not be executed sequentially because looping, jum

Version control systems, The next major set of tasks to tackle are delete a...

The next major set of tasks to tackle are delete and update. Version control systems typically version updates to a ?le and only store the differences between the ?les. Two system

Asp.net, in asp project is i have to crate database every time when i move ...

in asp project is i have to crate database every time when i move my project on different server

Explain combinational logic circuits, Explain Combinational logic circuits ...

Explain Combinational logic circuits Ans. Combinational logic circuits:- (i) Outputs only depend upon present state of the input. (ii) No memory element present or no f

What is a sap system, What is a SAP system? The union of all s/w compo...

What is a SAP system? The union of all s/w components that are assigned to the similar databases is known as a SAP system.

Classify computer systems according to capacity, Classify computer systems ...

Classify computer systems according to capacity. How they are different from computers according to the classification of technology. Provide comparative study also

How does tcp/ip decide the size of an ip fragment, How does TCP/IP decide t...

How does TCP/IP decide the size of an IP fragment? Explain. TCP/IP protocol utilizes the name IP datagram to refer to an Internet packet. The amount of data carried into a data

Explain why most interrupts are active low, Explain why most interrupts are...

Explain why most interrupts are active low? This answers why most signals are active low when you see the transistor level of a module, active low implies that the capacitor in

Explain about theta notation, Q. Explain about Theta Notation? Theta Θ...

Q. Explain about Theta Notation? Theta Θ Notation : The set Θ (g(n)) comprises all functions f(n) for that there exist positive constants c1,c2 such that f(n) is squeezed in b

What do you mean by electronic funds transfer, What do you mean by Electron...

What do you mean by Electronic Funds Transfer? Electronic Funds Transfer: It’s an electronic payment method which transfers the money value through one bank account to o

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