哪种更适合用于定期工作：服务或计划任务？ [英] Which is better to use for a recurring job: Service or Scheduled Task?
问题描述
我有一个任务需要每30秒运行一次。我可以做两件事之一：
I have a task that needs to run every 30 seconds. I can do one of two things:
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编写一个运行任务的命令行应用程序，等待30秒，运行它再次然后退出。
Write a command line app that runs the task once, waits 30 seconds, runs it again and then exits. I can schedule this task with Scheduled Tasks in Windows to run every minute
编写一个服务，在每次运行之间等待30秒时重复运行一个任务。
Write a Service that runs a task repeatedly while waiting 30 seconds in between each run.
数字1更不重要，在我看来，我会选择默认做这种方式。我想知道吗？有什么原因我应该使这个服务，而不是一个计划的任务？
Number 1 is more trivial, in my opinion and I would opt to do it this way by default. Am I wimping out? Is there a reason why I should make this a Service and not a scheduled task? What are the pros and cons of both and which would you pick in the end?
推荐答案
我最近读了一个很好的博客文章这个问题。为什么您应该不编写服务以运行重复性作业，这是很好的理由。此外，此问题之前已提出过：
I read a nice blog post about this question recently. It goes into a lot of good reasons why you should not write a service to run a recurring job. Additionally, this question has been asked before:
http://stackoverflow.com/questions/390307/windows-service-vs-scheduled-task
Windows服务或计划任务，我们更喜欢哪一个？
使用计划任务的一个优点是，如果运行服务涉及一些潜在风险，例如内存泄漏或挂起网络连接，则Windows服务可能会挂起时间长，对其他用户有不利影响。另一方面，计划的任务被写为短时间运行，因此即使它泄漏，效果也被最小化。
One advantage of using the scheduled task, is that if there is some potential risk involved with running the service such as a memory leak or hanging network connection, then the windows service can potentially hang aroung for a long time, adversely affecting other users. On the other hand, the scheduled task is written to be short running, so even if it does leak, the effect is minimised.
另一方面，某人在一个的上述问题评论说，调度程序具有在1分钟范围内某处的精度限制，因此您可能会看到调度程序无法每30秒精确地运行您的任务。
On the other hand, someone in one of the above questions commented that the scheduler has a limit of accuracy of somewhere in the range of 1 minute, so you may see that the scheduler is unable to run your task every 30 seconds with accuracy.
显然有许多要考虑的权衡，但希望这将帮助你做出一个好的决定。
Obviously there are a number of tradeoffs to consider, but hopefully this will help you make a good decision.
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