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    <div class="Article" data-slug="/blog/execution-traces-2024">
    
    <h1 class="small"><a href="//go.dev/blog/">The Go Blog</a></h1>
    

    <h1>More powerful Go execution traces</h1>
      
      <p class="author">
      Michael Knyszek<br>
      14 March 2024
      </p>
      
      <p>The <a href="//go.dev/pkg/runtime/trace">runtime/trace</a> package contains a powerful tool for understanding and
troubleshooting Go programs.
The functionality within allows one to produce a trace of each goroutine&rsquo;s execution over some
time period.
With the <a href="//go.dev/pkg/cmd/trace"><code>go tool trace</code> command</a> (or the excellent open source
<a href="https://gotraceui.dev/" rel="noreferrer" target="_blank">gotraceui tool</a>), one may then visualize and explore the data within these
traces.</p>
<p>The magic of a trace is that it can easily reveal things about a program that are hard to see in
other ways.
For example