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Explore the journey of optimizing Java performance through a conference talk that demonstrates how to process one billion CSV rows efficiently using plain Java techniques. Learn step-by-step optimization strategies that transform a naive 130-second approach into a blazing-fast 10-second solution, focusing on the accessible first 80% of performance improvements rather than advanced techniques like Graal, Unsafe, or SWAR. Discover the performance impact of various code changes, understand the reasoning behind optimization decisions, and master the tools needed to measure and guide performance improvements using Java 21. Compare Java 17 performance benchmarks and examine how proper error handling affects processing speed, all while following the journey inspired by Gunnar Morling's famous One Billion Row Challenge that captivated the programming community in January 2024.
