CODEWITHSUNDEEP
c#timing
deltanovember
deltanovember

Reputation: 44051

C# sub millisecond timing

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

Upvotes: 9

Views: 2978

Answers (5)

KoalaBear
KoalaBear

Reputation: 2948

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.

Upvotes: 2

Khalid Abuhakmeh
Khalid Abuhakmeh

Reputation: 10839

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.

Upvotes: 2

John Weldon
John Weldon

Reputation: 40749

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.

Upvotes: 3

Samuel Neff
Samuel Neff

Reputation: 74899

Use System.Diagnostics.Stopwatch

Upvotes: 12

tyranid
tyranid

Reputation: 13318

You could always try using QueryPerformanceCounter or the StopWatch class for a managed approach

Upvotes: 16

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