Go 1.25 Introduces Experimental Green Tea Garbage Collector with Performance Improvements
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Summary
Go 1.25 introduces an experimental garbage collector called Green Tea that significantly improves performance for many workloads. The new collector reduces garbage collection time by approximately 10% for most workloads and up to 40% for some, is production-ready and already in use at Google, and is planned to become the default in Go 1.26 based on current data. Users are encouraged to try it out and provide feedback, especially since some workloads may not benefit as much.
Key quotes
· 4 pulledGo 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 time in the garbage collector, but some workloads see a reduction of up to 40%!
It's production-ready and already in use at Google, so we encourage you to try it out.
Based on the data we have now, we plan to make it the default in Go 1.26.
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