Learn how profile-guided optimization, or PGO, enables the Go compiler to use a profile of your application to optimize your next build.

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Go 1.21 introduced profile-guided optimization (PGO), enabling developers to provide runtime profiles to the Go compiler for smarter code optimization in subsequent builds. Collaborations between teams at Google and Uber have shown notable CPU utilization reductions using PGO. The process involves collecting a CPU profile during runtime and using it to optimize the next build. The blog also details steps for implementing PGO on Google Cloud using Cloud Run and Cloud Profiler, offering a straightforward approach to optimizing and monitoring Go applications deployed on the cloud.

Using profile-guided optimization (PGO) for your Go apps