new PerformanceCounter(“Processor”, …); You are using the wrong counter if you insist on seeing an exact match with Task Manager or Perfmon. Use “Processor Information” instead of “Processor”. The reason these counters show different values is addressed pretty well in this blog post. Which counter is “right” is a question I wouldn’t want to touch … Read more
What is LPCTSTR, and to what data type does it map in C#? LPCTSTR is a typedef for const TCHAR*. TCHAR is an attempt to abstract away the fact that the Windows API exists in both “ANSI” (char strings in a locale-specific encoding) and “Unicode” (UTF-16) versions. There is no actual PdhOpenQuery function; there is … Read more
I am looking at my performance monitor and under the ASP.NET Apps v2.0.50727 category I have the following cache related counters: Cache % Machine Memory Limit Used Cache % Process Memory Limit Used There are also a lot of other cache related metrics under this category. These should be able to get you the percentage, … Read more
Resource monitor uses ETW – thankfully, Microsoft have created a nice nuget .net wrapper to make it easier to use. I wrote something like this recently to report back my process’s network IO: using System; using System.Diagnostics; using System.Threading.Tasks; using Microsoft.Diagnostics.Tracing.Parsers; using Microsoft.Diagnostics.Tracing.Session; namespace ProcessMonitoring { public sealed class NetworkPerformanceReporter : IDisposable { private DateTime … Read more
For per process data: Process p = /*get the desired process here*/; PerformanceCounter ramCounter = new PerformanceCounter(“Process”, “Working Set”, p.ProcessName); PerformanceCounter cpuCounter = new PerformanceCounter(“Process”, “% Processor Time”, p.ProcessName); while (true) { Thread.Sleep(500); double ram = ramCounter.NextValue(); double cpu = cpuCounter.NextValue(); Console.WriteLine(“RAM: “+(ram/1024/1024)+” MB; CPU: “+(cpu)+” %”); } Performance counter also has other counters than … Read more
The first iteration of he counter will always be 0, because it has nothing to compare to the last value. Try this: var cpuload = new PerformanceCounter(“Processor”, “% Processor Time”, “_Total”); Console.WriteLine(cpuload.NextValue() + “%”); Console.WriteLine(cpuload.NextValue() + “%”); Console.WriteLine(cpuload.NextValue() + “%”); Console.WriteLine(cpuload.NextValue() + “%”); Console.WriteLine(cpuload.NextValue() + “%”); Then you should see some data coming out. It’s … Read more
From this post: To get the entire PC CPU and Memory usage: using System.Diagnostics; Then declare globally: private PerformanceCounter theCPUCounter = new PerformanceCounter(“Processor”, “% Processor Time”, “_Total”); Then to get the CPU time, simply call the NextValue() method: this.theCPUCounter.NextValue(); This will get you the CPU usage As for memory usage, same thing applies I believe: … Read more
Accessing the performance counters isn’t difficult, but you have to enable them from kernel-mode. By default the counters are disabled. In a nutshell you have to execute the following two lines inside the kernel. Either as a loadable module or just adding the two lines somewhere in the board-init will do: /* enable user-mode access … Read more
Add a reference to Microsoft.VisualBasic and a using Microsoft.VisualBasic.Devices;. The ComputerInfo class has all the information that you need.