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In this 37-minute conference talk from GopherCon 2024, learn how to leverage Profile-Guided Optimization (PGO) to dramatically improve container utilization and reduce operational costs. Discover the compiler technique that uses runtime information to enable more aggressive optimizations through inlining and de-virtualizations. Explore the comprehensive implementation process including integrating PGO into Bazel builds, pre-processing profiles, adjusting compiler configurations, collecting service code profiles, and obtaining PGO data from production containers. See how this pioneering approach has achieved an average reduction of more than 15,000 CPU cores annually across fleet-wide Go services, and gain valuable insights that can be applied to your own infrastructure optimization efforts.
