Go: The Green Tea Garbage Collector

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A new Go blog post/announcement has been posted!

<div class="Article" data-slug="/blog/greenteagc">

<h1 class="small"><a href="/blog/">The Go Blog</a></h1>


<h1>The Green Tea Garbage Collector</h1>
  
  <p class="author">
  Michael Knyszek and Austin Clements<br>
  29 October 2025
  </p>
  
  <div class='markdown'>

.centered { position: relative; display: flex; flex-direction: column; align-items: center; } div.carousel { display: flex; width: 100%; height: auto; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 1.1em; } .hide-overflow { overflow-x: hidden !important; } button.scroll-button-left { left: 0; bottom: 0; } button.scroll-button-right { right: 0; bottom: 0; } button.scroll-button { position: absolute; font-size: 1em; font-family: inherit; font-style: oblique; } figure.carouselitem { display: flex; flex-direction: column; align-items: center; margin: 0; padding: 0; width: 100%; flex-shrink: 0; scroll-snap-align: start; } figure.carouselitem figcaption { display: table-caption; caption-side: top; text-align: left; width: 80%; height: auto; padding: 8px; } figure.captioned { display: flex; flex-direction: column; align-items: center; margin: 0 auto; padding: 0; width: 95%; } figure.captioned figcaption { display: table-caption; caption-side: top; text-align: center; font-style: oblique; height: auto; padding: 8px; } div.row { display: flex; flex-direction: row; justify-content: center; align-items: center; width: 100%; }

Go 1.25 includes a new experimental garbage collector called Green Tea, available by setting GOEXPERIMENT=greenteagc at build time. Many workloads spend around 10% less ti...

Get the full details here: The Green Tea Garbage Collector - The Go Programming Language