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Learn systematic profiling techniques to dramatically improve code performance through data-driven optimization rather than guesswork in this 19-minute conference talk from SREcon25 EMEA. Discover how to select appropriate profilers for different programming languages and environments, identify where performance bottlenecks actually occur beyond just application code, and interpret flame graphs, CPU/memory profiles, and I/O traces effectively. Master the implementation of lightweight continuous profiling systems that won't impact production performance while learning to prioritize performance improvements that deliver measurable user experience enhancements. Gain practical strategies for transforming vague performance complaints into concrete, measurable improvements whether debugging slow backend systems or optimizing critical application paths.
