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Compare and Contrast: Thread & Process.
written 7.8 years ago by | • modified 7.8 years ago |
Mumbai University > Information Technology > Sem5 > Operating System
Marks: 5M
Year: Dec 14
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written 7.8 years ago by | • modified 7.8 years ago |
Mumbai University > Information Technology > Sem5 > Operating System
Marks: 5M
Year: Dec 14
written 7.8 years ago by |
Sr no. | Thread | Process |
---|---|---|
1 | A thread is the smallest unit of processing that can be performed in an OS. In most modern operating systems, a thread exists within a process - that is, a single process may contain multiple threads. | A process is an instance of a computer program that is being executed. It contains the program code and its current activity. Depending on the operating system (OS), a process may be made up of multiple threads of execution that execute instructions concurrently. |
2 | Thread is light weight taking lesser resources than a process. | Process is heavy,weight or resource intensive. |
3 | Thread switching does not need to interact with operating system. | Process switching needs interaction with operating system. |
4 | All threads can share same set of open files, child processes. | In multiple processing environments each process executes the same code but has its own memory and file resources. |
5 | While one thread is blocked and waiting, second thread in the same task can run. | If one process is blocked then no other process can execute until the first process is unblocked. |
6 | Multiple threaded processes use fewer resources. | Multiple processes without using threads use more resources. |
7 | One thread can read, write or change another thread's data. | In multiple processes each process operates independently of the others. |
8 | Threads within the same process share same address space. | Processes do not share same address space. |
9 | Thread can share file descriptors | Process do not share file descriptors |
10 | Threads can share signal handling | Process do not share signal handling |