public static void GetCounterNameValueList(string CategoryName, string instanceName){string[] instanceNames;ArrayList counters = new ArrayList();PerformanceCounterCategory mycat = new PerformanceCounterCategory(CategoryName);try{counters.AddRange(mycat.GetCounters(instanceName));foreach (PerformanceCounter counter in counters){Console.WriteLine(string.Format("{0,-30}:{1,20}", counter.CounterName, counter.RawValue));}}catch (Exception){Console.WriteLine("Unable to list the counters for this category");}}

private static void PrintProcessInfo(string name){PerformanceCounter PTCounter = new PerformanceCounter("Process", "% Processor Time", name);PerformanceCounter DiskReadCounter = new PerformanceCounter("Process", "IO Read Bytes/sec", name);PerformanceCounter DiskWriteCounter = new PerformanceCounter("Process", "IO Write Bytes/sec", name);CounterSample cpuSample1 = PTCounter.NextSample();CounterSample diskReadSample1 = DiskReadCounter.NextSample();CounterSample diskWriteSample1 = DiskWriteCounter.NextSample();Thread.Sleep(1000);CounterSample cpuSample2 = PTCounter.NextSample();CounterSample diskReadSample2 = DiskReadCounter.NextSample();CounterSample diskWriteSample2 = DiskWriteCounter.NextSample();Console.WriteLine(CounterSampleCalculator.ComputeCounterValue(cpuSample1, cpuSample2));Console.WriteLine(CounterSampleCalculator.ComputeCounterValue(diskReadSample1, diskReadSample2));Console.WriteLine(CounterSampleCalculator.ComputeCounterValue(diskWriteSample1, diskWriteSample2)/1024/1024 + " MByte/s");//内存//PerformanceCounter WSCounter = new PerformanceCounter("Process", "Working Set", name);PerformanceCounter WSCounter = new PerformanceCounter("Process", "Working Set - Private", name);Console.WriteLine("Working Set:" + ((double) WSCounter.NextValue()/1024/1024).ToString());//内存最高值PerformanceCounter MemeryCounter = new PerformanceCounter("Process", "Working Set Peak", name);Console.WriteLine("Working Set Peak:" + ((double) MemeryCounter.NextValue()/1024/1024).ToString());}

using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Threading;
using System.Timers;
using Timer = System.Timers.Timer;namespace Logic
{public class ProcessMonitor{private class ProcessCounterSamples{public CounterSample CpuSample;public CounterSample DiskReadSample;public CounterSample DiskWriteSample;public CounterSample DiskReadWriteSample;}private class ProcessInfo{public float CpuPercentage { get; set; }public float DiskRead { get; set; }public float DiskWrite { get; set; }public float DiskReadWrite { get; set; }public float Memory { get; set; }public float MemoryMax { get; set; }}private const int RowsOfBuffer = 10;private const float Mega = (float)1024 * 1024;private string filePath;private Timer timer;private List<ProcessInfo> monitorResults;private object fileLock=new object();private int timerCount;private ProcessCounterSamples lastSample;private PerformanceCounter cpuCounter;private PerformanceCounter diskReadCounter;private PerformanceCounter diskWriteCounter;private PerformanceCounter diskReadWriteCounter;private PerformanceCounter memoryCounter;private PerformanceCounter memoryMaxCounter;//processName:no path, no extension//statFilePath:absolute path, extensionpublic ProcessMonitor(string processName, string statFilePath, int statInterval){filePath = statFilePath;InitPerformanceCounter(processName);monitorResults=new List<ProcessInfo>();timer = new Timer(statInterval);timer.Elapsed += DoStatistics;}public void StartMonitor(){timer.Start();}public void StopMonitor(){timer.Stop();AppendSave(filePath);}private void DoStatistics(object sender, ElapsedEventArgs elapsedEventArgs){int threadsLeft, dummy;ThreadPool.GetAvailableThreads(out threadsLeft, out dummy);if (threadsLeft < 2) return; ProcessInfo info = GetProcessInfo();monitorResults.Add(info);if (timerCount % RowsOfBuffer == 0) AppendSave(filePath);}private void AppendSave(string fileName){lock (fileLock){using (StreamWriter sw = new StreamWriter(fileName, true)){var list = monitorResults;monitorResults = new List<ProcessInfo>();foreach (ProcessInfo info in list){sw.WriteLine("{0},{1},{2},{3},{4},{5}", info.CpuPercentage, info.Memory, info.MemoryMax, info.DiskRead, info.DiskWrite, info.DiskReadWrite);}sw.Close();}}}private ProcessInfo GetProcessInfo(){ProcessInfo result = new ProcessInfo();ProcessCounterSamples currentSample = new ProcessCounterSamples();currentSample.CpuSample = cpuCounter.NextSample();currentSample.DiskReadSample = diskReadCounter.NextSample();currentSample.DiskWriteSample = diskWriteCounter.NextSample();currentSample.DiskReadWriteSample = diskReadWriteCounter.NextSample();if (lastSample == null){result.CpuPercentage = 0f;result.DiskRead = 0f;result.DiskWrite = 0f;result.DiskReadWrite = 0f;}else{result.CpuPercentage = CounterSampleCalculator.ComputeCounterValue(lastSample.CpuSample, currentSample.CpuSample);result.DiskRead = CounterSampleCalculator.ComputeCounterValue(lastSample.DiskReadSample, currentSample.DiskReadSample) / Mega;result.DiskWrite = CounterSampleCalculator.ComputeCounterValue(lastSample.DiskWriteSample, currentSample.DiskWriteSample) / Mega;result.DiskReadWrite = CounterSampleCalculator.ComputeCounterValue(lastSample.DiskReadWriteSample, currentSample.DiskReadWriteSample) / Mega;}lastSample = currentSample;result.Memory = memoryCounter.NextValue() / Mega;result.MemoryMax = memoryMaxCounter.NextValue() / Mega;return result;}private void InitPerformanceCounter(string processName){cpuCounter = new PerformanceCounter("Process", "% Processor Time", processName);diskReadCounter = new PerformanceCounter("Process", "IO Read Bytes/sec", processName);diskWriteCounter = new PerformanceCounter("Process", "IO Write Bytes/sec", processName);diskReadWriteCounter = new PerformanceCounter("Process", "IO Data Bytes/sec", processName);memoryCounter = new PerformanceCounter("Process", "Working Set - Private", processName);//memorymemoryMaxCounter = new PerformanceCounter("Process", "Working Set Peak", processName);//memory peak
        }}
}

ProcessMonitor monitor2 = new ProcessMonitor("firefox", "D:\\tempData\\tmp2.csv", 1000);monitor2.StartMonitor();Thread.Sleep(21000);monitor2.StopMonitor();