BigData
Apache Sqoop Tutorial: What is, Architecture, Example
What is SQOOP in Hadoop? Apache Sqoop ( SQL-to-Hadoop ) is designed to support bulk import of data...
A process is the execution of a program that allows you to perform the appropriate actions specified in a program. It can be defined as an execution unit where a program runs. The OS helps you to create, schedule, and terminates the processes which is used by CPU. The other processes created by the main process are called child process.
A process operations can be easily controlled with the help of PCB(Process Control Block). You can consider it as the brain of the process, which contains all the crucial information related to processing like process id, priority, state, and contents CPU register, etc.
In this Process vs Thread tutorial, you will learn:
Thread is an execution unit that is part of a process. A process can have multiple threads, all executing at the same time. It is a unit of execution in concurrent programming. A thread is lightweight and can be managed independently by a scheduler. It helps you to improve the application performance using parallelism.
Multiple threads share information like data, code, files, etc. We can implement threads in three different ways:
Here are the important properties of the process:
Here are important properties of Thread:
Here, are the important differences between Process and Thread
Parameter | Process | Thread |
---|---|---|
Definition | Process means a program is in execution. | Thread means a segment of a process. |
Lightweight | The process is not Lightweight. | Threads are Lightweight. |
Termination time | The process takes more time to terminate. | The thread takes less time to terminate. |
Creation time | It takes more time for creation. | It takes less time for creation. |
Communication | Communication between processes needs more time compared to thread. | Communication between threads requires less time compared to processes. |
Context switching time | It takes more time for context switching. | It takes less time for context switching. |
Resource | Process consume more resources. | Thread consume fewer resources. |
Treatment by OS | Different process are tread separately by OS. | All the level peer threads are treated as a single task by OS. |
Memory | The process is mostly isolated. | Threads share memory. |
Sharing | It does not share data | Threads share data with each other. |
Multithreading refers to multiple threads of execution within an operating system. In simple terms, two or more threads of a same process are executing simultaneously.
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