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

Program testing and debugging, Program testing and debugging: Program ...

Program testing and debugging: Program testing is the method of checking program, to verify that it satisfies its needs and to detect errors. These errors can be of any type-

Microprocessors and digital design, Describe the purpose and operation of R...

Describe the purpose and operation of Register 2 (R2) for the MSP430

Evaluate sop expression, Q. For function F(x,y,z) = ∑m(0,1,2,6,7) using TRU...

Q. For function F(x,y,z) = ∑m(0,1,2,6,7) using TRUTH TABLE only.   1. Find SOP expression 2. Implement this simplified expression using two level AND-to-OR gate network 3. I

Internal organisation of memory chips, expplain in detail the internal orga...

expplain in detail the internal organisation of computer?

Differentiate between intranet and internet, Differentiate between intranet...

Differentiate between intranet and internet Some comparisons between intranet and internet include: -  INTERNET is INTERnational NETwork -  An INTRANET is INTernal Restri

Task and parallel task, Task A logically discrete sector of a computati...

Task A logically discrete sector of a computational effort. A task is naturally a program or program-like set of instructions that is implemented by a processor.  Parallel

Explain the type of micro-operations, Q. Explain the type of micro-operatio...

Q. Explain the type of micro-operations? Let's first discuss type of micro-operations. Most common micro-operations performed in a digital computer can be categorized into 4 ca

Illustrate organisation of dram chip, Q. Illustrate Organisation of DRAM Ch...

Q. Illustrate Organisation of DRAM Chip? The given figure is a typical organisation of 16 mega bit DRAM. It displays a typical organisation of 2048 × 2048 × 4 bit DRAM chip. Me

What is hysteresis, What is hysteresis? Hysteresis is well known in fer...

What is hysteresis? Hysteresis is well known in ferromagnetic materials. When an external magnetic field is applied to a Ferro magnet, the atomic dipoles align themselves with

Which instruction is use in each process before proceeding, Before proceedi...

Before proceeding with its execution, each process must acquire all the resources it needs is called ? Ans. Hold and Wait is requires in each process should acquire all the res

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