Question

Threads are the actual execution of computer code (the applications) by the operating system and associated hardware. This fact suggests that if an application is going to be effective and efficient, it has to be in an environment where multiple threads can be processed at the same time. Using potential threads that are generated when working in a document processing application as examples, discuss the following aspects of threads:

Compare and contrast threads to processes. Which of the two hold an advantage over the other for the scenario given above?

Answer 1

S.NO	PROCESS	THREAD
1.	Process means any program is in execution.	Thread means segment of a process.
2.	Process takes more time to terminate.	Thread takes less time to terminate.
3.	It takes more time for creation.	It takes less time for creation.
4.	It also takes more time for context switching.	It takes less time for context switching.
5.	Process is less efficient in term of communication.	Thread is more efficient in term of communication.
6.	Process consume more resources.	Thread consume less resources.
7.	Process is isolated.	Threads share memory.
8.	Process is called heavy weight process.	Thread is called light weight process.
9.	Process switching uses interface in operating system.	Thread switching does not require to call a operating system and cause an interrupt to the kernel.
10.	If one server process is blocked no other server process can execute until the first process unblocked.	Second thread in the same task could run, while one server thread is blocked.

Thread holds more advantage over process