I say slow, because when I add the exact same counters (as my code uses) to perfmon, the sampling takes place every second without issue. You can rate examples to help us improve the quality of examples. C# / C Sharp Forums on Bytes. I'm finding that calling NextValue () on a PerformanceCounter is extremely slow. C#でcpu使用率を取得する | そど PerformanceCounter to get CPU usage of a application/Instance C# .NET NextValue() 메소드가 상태 값을 리턴하는 메소드입니다만, 아래와 같이 두번씩 불러줘야 하는 점이 약간 불편합니다. Retrieving Accurate CPU Usage In C# - Gavin Draper at System.Diagnostics.PerformanceCounter.NextValue() When I get this exception from a specific server, .Net will no longer collect data from it until the application is restarted. C#でcpu使用率を取得する | そど After the instance is created, the CategoryName, CounterName, and InstanceName property values are set, and the results of a call to the NextValue method are displayed. Lee Holmes | Accessing Performance Counters in PowerShell 7.0.0. new PerformanceCounter(".NET CLR Memory", "# bytes in all heaps ... Logging and Systems Management in Microsoft ... - Microsoft Press Store We need to call counters in which the performance data is placed. Sample C# public static string GetCurrentCpuUsage() { var cpuCounter = new . For more information on . @Matt I thought that too at first, but 'PerformanceCounter.NextValue' gives back whatever value you have defined for it: look closer at the second argument "counterName" of the instantiation of the counter. Performance Monitor (perfmon) ADO .Net --> System.Diagnostics.PerformanceCounter. PerformanceCounter: Only 0% or 100% when get % Processor Time - C# / C ... */ protected PerformanceCounter cpuCounter; /// </ devdoc > public float NextValue() . How can I use System.Diagnostics.PerformanceCounter to track the memory and CPU usage for a process?. Hey all, Finally decided to learn some C# this summer by trying to write a rather non-trivial program.