how to execute certain class method no more than once per 100ms?

Question

I\'m writing trading software and need to QoS one method that should not be executed more often than 10 times per second. As I\'m begginer in C# and almost not familar with

Answer 1

Stopwatches and timers are fairly expensive objects to use. You could simply hold a DateTime object as a variable and perform a comparison.

DateTime lastCheck = DateTime.Now;

private void update()
{
    // DateTime.Subtract returns a TimeSpan
    int elapsed = DateTime.Now.Subtract(lastCheck).Milliseconds;
    if (elapsed < 100)
    {
        Console.WriteLine("!skip update " + elapsed.ToString());
        return;
    } else
    {
        Console.WriteLine("!update");
        lastCheck = DateTime.Now;
    }
    // do work here
}