How Can I Retrieve CPU Usage Information in C#?

Monitoring CPU Usage with C#

Efficiently tracking CPU usage is vital for application performance analysis. The C# PerformanceCounter class within the System.Diagnostics namespace provides a straightforward method for achieving this.

Implementing CPU Usage Measurement

First, initialize the PerformanceCounter object:

<code class="language-csharp">PerformanceCounter cpuCounter = new PerformanceCounter("Processor", "% Processor Time", "_Total");</code>

Then, retrieve the CPU usage percentage:

<code class="language-csharp">public string GetCurrentCpuUsage() {
    return cpuCounter.NextValue() + "%";
}</code>

Important Note:

The first call to NextValue() will always return 0%. For accurate results, make at least two calls, separated by a one-second delay. This allows for a proper calculation of the change in CPU usage over time. This technique enables effective CPU usage monitoring and helps pinpoint performance limitations within your application.

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