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

How do we draw in a different color in gimp, At the bottom of the toolbar t...

At the bottom of the toolbar there is a box with two lesser boxes and an arrow. The uppermost box displays the present foreground color; the lowermost box shows the present backgro

Explain addressing modes in risc, Q. Explain Addressing modes in RISC? ...

Q. Explain Addressing modes in RISC? Simple addressing modes: Another benefit is the use of simple addressing modes. RISC machines employ simple register addressing having disp

Illustrate third generation computers, Q. Illustrate third Generation Compu...

Q. Illustrate third Generation Computers? The third generation has fundamental hardware technology: Integrated Circuits (ICs). To understand what are Integrated circuits let's

What is meant by inferring latches, What is meant by inferring latches, how...

What is meant by inferring latches, how to avoid it? Consider the following: always @(s1 or s0 or i0 or i1 or i2 or i3) case ({s1, s0}) 2'd0: out = i0; 2'd1: out =

Convert the decimal to hexadecimal equivalent number, Convert the decimal n...

Convert the decimal number 45678 to its hexadecimal equivalent number. Ans: (45678) 10 =(B26E) 16 (45678) 10 =(B26E) 16

For what DMSP stands, For what DMSP stands? DMSP stans here for Dist ri...

For what DMSP stands? DMSP stans here for Dist ributed Mai l system Protocol.

What do you mean by instruction cycle, Q. What do you mean by instruction c...

Q. What do you mean by instruction cycle? We have considered the instruction execution in previous section. Now let's consider more about different types of instruction executi

Assembly language - computer architecture, Assembly language: An assem...

Assembly language: An assembly program has a series of instructions--mnemonics that relate to a stream of executable instructions, when translated by an assembler that may be

8086 microprocessor, In SDK – 86 kit 128KB SRAM and 64KB EPROM is provided ...

In SDK – 86 kit 128KB SRAM and 64KB EPROM is provided on system and provision for expansion of another 128KB SRAM is given. The on system SRAM address starts from 00000H and that

Caption to commission rate, Get a listing of the name, commission rate, and...

Get a listing of the name, commission rate, and hire date of all salesmembers who sell to commercial customers. Sort the result in order from the 1st hired to the most recently hir

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