Get CPU and Memory usage of system in C#

PerformanceCounter cpuCounter=new PerformanceCounter("Processor", "% Processor Time", "_Total");
PerformanceCounter ramCounter= new PerformanceCounter("Memory", "Available MBytes");

// The method nextValue() always returns a 0 value on the first call. So you have to call this method a second time
cpuCounter.NextValue();
Thread.Sleep(1000);
var cpuUsage = cpuCounter.NextValue();
string cpuUsageStr = string.Format("{0:f2} %",cpuUsage);

var ramAvailable = ramCounter.NextValue();
string ramAvaiableStr = string.Format("{0} MB", ramAvailable);

References :
http://stackoverflow.com/questions/4679962/what-is-the-correct-performance-counter-to-get-cpu-and-memory-usage-of-a-process
http://stackoverflow.com/questions/2181828/why-the-cpu-performance-counter-kept-reporting-0-cpu-usage

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