如何在winforms中使用计时器创建一个准确的时间段 [英] How I can create an accurate period using timer in winforms

问题描述

大家好，



我的目的是创建一个周期性函数，其中OnTimeEvent在两个连续时间之间的经过时间恰好等于计时器的间隔。然后我可以使用间隔时间作为采样时间。



我尝试过：



我在C＃中使用timer elapse事件来创建一个周期性函数。

即使Timer间隔设置为10ms，但是当我测量经过时间时，变化的范围是12-30ms，即使OnTimeEvent函数中有几行代码（我测量它大约是1-3ms）。



如何在C＃中完成它，我应该使用Thread任务吗？或者另一种方法。

请建议我一个可以解决我问题的解决方案。



非常感谢你！

解决方案

基于时间戳的计时器不适用于小间隔。



从我的观点来看，基于线程的计时器将是最佳方案。您还可以查看多媒体计时器（Windows） [ ^ ]。



但是你应该知道Windows不是实时操作系统。你不会得到恒定的计时器间隔;特别是当系统负载很高或有很多磁盘或网络数据传输时。



一些CP链接：

Microsecond和毫秒C＃计时器 [ ^ ]

.NET Framework的多媒体计时器 [ ^ ]



提供不同解决方案的SO线程：

c＃ - Most .NET中的准确计时器？ - Stack Overflow [ ^

Hi everyone,

My purpose is to create a periodical function which the elapse time of OnTimeEvent between two continuous times is exactly equal to the interval of the timer. Then I can use the interval time as sampling time.

What I have tried:

I am using timer elapse event in C# to create a periodical function.
Even though the Timer interval is set to 10ms, but when I measure the elapsed time is varied in the range of 12-30ms, even though there are several lines of code in the OnTimeEvent function (I measure it is about 1-3ms).

How I can do it in C#, should I use Thread task? or another method.
Please suggest me a solution that can solve my problem.

Thank you so much!

解决方案

Tick based timers won't work for small intervals.

From my point of view a thread based timer would be the best solution. You might also have a look at the Multimedia Timers (Windows)[^].

But you should be aware that Windows is not a real time operating system. You will not get constant timer intervals; especially when the system load is high or there are many disk or network data transfers.

Some CP links:
Microsecond and Millisecond C# Timer[^]
The Multimedia Timer for the .NET Framework[^]

An SO thread providing different solutions:
c# - Most accurate timer in .NET? - Stack Overflow[^]

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