2020年2月8日 · In .NET 7.0 there were some improvements in the Stopwatch class. There is a better way to use Stopwatch that will be more accurate, slightly faster, and won't use memory allocation at all! You should use the methods Stopwatch.GetTimestamp() & Stopwatch.GetElapsedTime(long) to make the improvements. An example would be:

2014年6月10日 · public void DoWork() { var timer = Stopwatch.StartNew(); // some hard work Logger.Log("Time elapsed: {0}", timer.Elapsed); timer.Stop(); // Do I need to call this? According to MSDN: In a typical Stopwatch scenario, you call the Start method, then eventually call the Stop method , and then you check elapsed time using the Elapsed property.

2013年3月22日 · Stopwatch vs. using System.DateTime.Now for timing events. I have code which needs to run as fast as possible. To be able to log the execution time, I use the Stopwatch class. I suspect, Stopwatch may effect the performance in a bad way. Maybe using a DateTime difference may be more effective? Which one do you think has better performance?

2009年9月28日 · StopWatch- it also works on systems that don't support a high resolution performance counter and you don't need any external libraries to use it. The other one throws an Win32Exception if there is no support for a high resolution counter.

2021年12月26日 · If I have a shared System.Diagnostics.Stopwatch instance, can multiple threads call shared.ElapsedTicks in a safe manner and get accurate results? Is there any difference in terms of thread-safety/accuracy between using a shared instance of Stopwatch in this way, and using the static GetTimeStamp() method?

2012年12月20日 · The Stopwatch measures elapsed time by counting timer ticks in the underlying timer mechanism. If the installed hardware and operating system support a high-resolution performance counter, then the Stopwatch class uses that counter to measure elapsed time. Otherwise, the Stopwatch class uses the system timer to measure elapsed time.

2015年2月24日 · private void LoggingThread() { var watch = new Stopwatch(); watch.Start(); EventWaitHandle.WaitAll(threadsEventWaitHandles); watch.Stop(); Log(watch.ElapsedMilliseconds); } And also the methods MyMethod1, MyMethod2 will signal to the loging thread whene they finish.

2014年10月14日 · AddAllNumbersMax(); stopWatch.Start(); This will first execute AddAllNumbersMax—which in turns calls stopWatch.Stop() and reads the elapsed time—and only then it will start the time. If you are going to measure the time AddAllNumbersMax takes, it’s probably a good idea to start the stopwatch in there too. Or move the whole stopwatch ...

2010年5月10日 · "IF you feel paranoid about the Diagnostics namespace, pInvoke the QPF directly.": bad advice, considering how nicely Stopwatch hides the complexity of the native API and P/Invoking into it. Should really be: "Don't feel paranoid about Stopwatch just because it's in the System.Diagnostics namespace". –

2018年4月23日 · First, don't reuse Stopwatch, just create new every time you need. Second, you need to handle two cases - one when delegate you pass returns value and one when it does not. Since your Track method is static - it's a common practice to make it thread safe.