Concepts between processes and threads and the benefits of multithreading

Process:

A process can be understood as a running program, and each running program is a process.

Thread:

A thread can be a subtask that runs in a process, and a process can have n threads (n <= 1).

Advantages of Multithreading:

For example, a person can finish a job for two days (one thread works for two days), then two people can finish it in one day (two threads work one). Obviously, the work efficiency doubles, below draws a picture, may look:

Of course, this is only in the broad sense of the explanation, in fact, the bottom of the CPU is a single-threaded, but if a program is multithreaded, the CPU will be very fast between different threads to switch back and forth, so that people mistakenly think it is multi-threaded.

Concepts between processes and threads and the benefits of multithreading