We arrange those tasks need more time span as backstage tasks which to be performed by worker threads. So the system can schedule them by priority.

把那些耗时多的任务安排在后台并由辅助线程实现，从而系统可按优先级来调度它们。

youdao

We arrange those tasks need more time span as backstage tasks which to be performed by worker threads. So the system can schedule them by priority.

把那些耗时多的任务安排在后台并由辅助线程实现，从而系统可按优先级来调度它们。

youdao