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

Define deadlock, Define deadlock? Deadlock is a condition, wherein proc...

Define deadlock? Deadlock is a condition, wherein processes never finish executing and system resources are tied up, preventing another job from beginning. A process requests r

Representations or languages - artificial intelligence, Representations/Lan...

Representations/Languages Used: Many people are taught "AI" with the opening line: "The three most important things in "AI" are  representation, representation and representat

Can math operations be performed on a void pointer, Can math operations be ...

Can math operations be performed on a void pointer? No. Pointer addition and subtraction are based on advancing the pointer by a number of elements. By explanation, if you have

What are rdram, What are RDRAM? RDRAM are Rambus DRAM. Rambus needs spe...

What are RDRAM? RDRAM are Rambus DRAM. Rambus needs specially designed memory chips. These chips use cell arrays based on the standard DRAM technology. Multiple banks of cell a

Multiple assign statements targeting the same wire, What logic is inferred ...

What logic is inferred when there are multiple assign statements targeting the same wire? It's illegal to specify multiple assign statements to the same wire in a synthesizable

Displacement addressing mode - computer architecture, Displacement and  Sta...

Displacement and  Stack Addressing  mode - computer architecture: Displacement Addressing: In displacement addressing mode there are three types of addressing mode. They

C programming, There is a pebble merchant. He sells the pebbles, that are u...

There is a pebble merchant. He sells the pebbles, that are used for shining the floor. His main duty is to take the length of the room’s sides. But he sometimes mistakes doing that

Design a 4:1 mux in verilog, Design a 4:1 mux in Verilog   Mult...

Design a 4:1 mux in Verilog   Multiple styles of coding. e.g. Using if-else statements if(sel_1 == 0 && sel_0 == 0) output = I0; else if(sel_1 == 0 && sel_0 ==

Which is the slowest sorting procedure, The slowest sorting procedure is   ...

The slowest sorting procedure is    Bubble Sort is the slowest sorting process.

Name the processes of oom, Name the processes of OOM In OOM the modelli...

Name the processes of OOM In OOM the modelling passes through the given processes: System Analysis System Design Object Design, and Final Implementation.

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