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

draw the precedence diagram , The desired daily output for an assembly ...

The desired daily output for an assembly line is 360 units. This assembly line will operate 450 minutes per day. The following table have information on this product's task times a

What do you mean by data distribution, Q. What do you mean by Data Distribu...

Q. What do you mean by Data Distribution? Data distribution directives tell compiler how program data is to be distributed among memory areas connected with a group of processo

Predictive modelling power, Another useful feature of an experts system ...

Another useful feature of an experts system is its predicative modelling power. The system can act as an information processing theory or model of problem solving in th

How to correctly apply the graphics patches in matlab, Open a LOCAL MACHINE...

Open a LOCAL MACHINE window and type: xhost +ashland # Add the following code sequence just before the plot command that was giving you problems: figure; set(gcf,'renderer','zbuffe

Show the steps of execution of instructions, Q. Show the steps of execution...

Q. Show the steps of execution of instructions? Fetch First Instruction into CPU: Step 1: Find/calculate the address of first instruction in memory. In this machine illust

Simple application to model a garden, Requirement Specification for a Simpl...

Requirement Specification for a Simple Application to Model a Garden The following is a requirements statement for a simple application to model the design of a garden. The requ

Determine what part of global array to work on thread number, Q. Determine ...

Q. Determine what part of global array to work on thread number? #include void subdomain(float x[ ], int istart, int ipoints) { int i; for (i = 0; i x[istart+

What are the mapping techniques, What are the mapping techniques? a)Dir...

What are the mapping techniques? a)Direct mapping b) Associative mapping c)  Set associative mapping

An example of two stages network have switching elements, For two stages ne...

For two stages network the switching elements for M inlets with r blocks and N outlets with s blocks is given by (A) Ms + Nr                                (B)  Mr + Ns (

Phython, super ascii string checker

super ascii string checker

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