The combination of the delayed start, low CPU and memorypriority, and background disk priority greatly reduce interference with a user's logon.
将延迟式启动、较低的CPU和内存优先级与后台磁盘优先级结合后,大大减少了与用户登录间的相互冲突。
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This constructor lets you specify the priority, memory sizes, and period for a thread, along with the class that represents the thread to be run (a class that extends PeriodicThread).