Forkjoin framework of Java-juc

First, the main algorithm ideas:

Adopted the idea of dividing a large task into different subtasks, placing the thread in a different queue, and a thread corresponding to a queue.

1. "Work-stealing algorithm": When a thread finishes a task in its own queue, it steals the task from the other queue to execute

2. Limitations of the framework:

• There is competition: when there is only one task in the double-ended queue

Second, the application

1. Parallel stream in Java8

Because a large computational task in the recent project uses the parallel stream to compute machine learning models in parallel, a recent system time-consuming bottleneck has been found that may be problematic, and is intended to be studied in depth

Forkjoin framework of Java-juc