C＃亚毫秒时序

Question

Is there anywhere in C# to perform timing operations with sub millisecond accuracy? I'm putting timing code in my software and everything is being returned as 0ms. I would like to know if there is a way of getting even finer granularity.

Addendum: is this the correct code to get sub millisecond timing?

timeSpan.TotalMilliseconds / 10

I'm still getting 0 as the elapsed time

Answer 1

您可以尝试使用QueryPerformanceCounter或StopWatch类进行托管方法

Answer 2

使用System.Diagnostics.Stopwatch

Answer 3

Usually I measure these kinds of scenarios by repeating the operation multiple times (as many as needed to get the milliseconds over a few dozen or hundred.

Then you can adjust and measure more easily.

Answer 4

You could try measuring your performance in matter of Ticks instead of milliseconds. It will be much more accurate in terms of performance.

but I agree with Sam and Tyranid, use System.Diagnostics.StopWatch.

Answer 5

I learned something new. Those Ticks are handy indeed. Complete example:

Stopwatch stopwatch = Stopwatch.StartNew();

// Run code to get duration of

long durationInTicks = stopwatch.ElapsedTicks;
Console.WriteLine($"Duration: {(decimal)durationInTicks / TimeSpan.TicksPerMillisecond:f3}ms");

You can also use stopwatch.ElapsedTicks inside the Console.WriteLine , but I do not know if that has any performance delays, that's why I first retrieve it and put it in a variable.