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One Billion Row Challenge
Exercise
2026-08-08
Gunnar Morling's 1BRC — aggregate a billion temperature readings as fast as the JVM allows, profiling from naive baseline to memory-mapped byte crunching.
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One Billion Row Challenge — subject
Subject
2026-08-08
The 1BRC spec restated — input and output formats, the billion-row generator, the same-machine measurement protocol, and the staged optimization ladder with the expected technique per stage.