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<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>CPU Usage Status Window</title>
<meta name="description" content="Code, Critters, and whatever I feel like writing about.">
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<header>
<a href="/Blog/" class="home-link">Chris Kaczor</a>
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<time datetime="2018-03-08">08 March 2018</time>
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<a href="/Blog/tags/code/" class="post-tag">Code</a>,
<a href="/tags/code/" class="post-tag">Code</a>,
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<a href="/Blog/tags/floating-status-window/" class="post-tag">Floating Status Window</a>
<a href="/tags/floating-status-window/" class="post-tag">Floating Status Window</a>
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<p>Now that I've written about my <a href="https://github.com/ckaczor/FloatingStatusWindow">FloatingStatusWindow</a> library I can start to talk about the projects that use it. First up is the <a href="https://github.com/ckaczor/ProcessCpuUsageStatusWindow">ProcessCpuUsageStatusWindow</a> project.</p>
<p><a href="/Blog/blog/cpu-usage-status-window/images/ProcessCpuUsageStatusWindow.png"><picture><source type="image/avif" srcset="/Blog/img/L-UgyKZ-NI-373.avif 373w"><source type="image/webp" srcset="/Blog/img/L-UgyKZ-NI-373.webp 373w"><img loading="lazy" decoding="async" src="/Blog/img/L-UgyKZ-NI-373.png" alt="" width="373" height="139"></picture></a></p>
<p><a href="/blog/cpu-usage-status-window/images/ProcessCpuUsageStatusWindow.png"><picture><source type="image/avif" srcset="/img/L-UgyKZ-NI-373.avif 373w"><source type="image/webp" srcset="/img/L-UgyKZ-NI-373.webp 373w"><img loading="lazy" decoding="async" src="/img/L-UgyKZ-NI-373.png" alt="" width="373" height="139"></picture></a></p>
<p>It is basically a mini task manager showing the top X processes by CPU usage and the total CPU usage of the system. The values update automatically every 2 seconds.</p>
<p>CPU usage is calculated by taking a snapshot of &quot;% processor time&quot; for the &quot;Process&quot; performance counter category every 2 seconds and having the counter sample calculate the percent usage for each process based on the previous snapshot.</p>
<p>This ended needing a lot more calculation than I had hoped although I don't remember all the details as to why - one of the perils of blogging so long after the code was written. From what I remember what I first tried was built into .NET and was easier to code but used a lot more processor time than I was comfortable with. Perhaps that has since been fixed in a later framework version - someday I'll have to try to recreate what I was doing.</p>
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<a href="/Blog/blog/floating-status-window/">Floating Status Window</a>
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<li class="links-nextprev-next">Next →<br>
<a href="/Blog/blog/system-temperature-status-window/">System Temperature Status Window</a>
<a href="/blog/system-temperature-status-window/">System Temperature Status Window</a>
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