to task

One: BackgroundSpeculative task, also called speculative tasks, refers to the distributed cluster environment, because of program bugs, load imbalance or uneven distribution of resources, resulting in the same job multiple tasks run speed is not inconsistent, and some task speed is significantly slower than the other task ( For example, if a job has a

Managing TasksManage tasksThe way Android manages tasks and the back stack, as described above-by placing all activities started in succession in the same task and in a "last in, first out "stack-works great for most applications and you shouldn't have to worry about how your activities are associated with tasks or how they exist in the back stack.However, you might decide that you want to interrupt the normal behavior.Perhaps you want an activity in

Andling affinitiesProcessing affinity The affinity indicates which task an activity prefers to belong.By default, all the activities from the same application have an affinity for each other.So, by default, all activities in the same application prefer to be in the same task.However, you can modify the default affinity for an activity.Activities defined in different applications can share an affinity, or activities defined in the same application can

First, prefaceThe greatest advantage of the executor framework introduced after 1.5 is the decoupling of task submission and execution. The person who wants to perform the task simply describes the task clearly and submits it. How the task is executed, who executes it, and when it is executed, the person who commits it

use the enhanced Task Scheduler to achieve the important data scheduled backup function, the following is the specific implementation steps: First, open the Windows Server 2008 system's Start menu, select Programs/attachments/System Tools/Task Scheduler commands, and then enter the Task Scheduler window of the Windows Server 2008 system, and click in the list a

Intent intent = new intent (); Intent. setaction (intent. action_call ); Intent. setdata (URI. parse ("Tel:" + number )); Startactivity (intent ); The above code starts an instance of another activity through intent in an activity.As mentioned above, one activity can start another, including those defined in different applications. An activity is a user interface that can start many activities continuously to improve user experience. Of course, this quantity is limited, which depends on the

. Multi-threaded Use task in net Ask can be said to be the upgrade version of the ThreadPool, online task scheduling, parallel programming has a great role. Create and initialize a task To create a task using a lambda expressionTask.Factory.StartNew (() => Console.WriteLine ("Hello from a