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Building a 2KB Histogram with Sub -0.2% Percentile Error

A lightweight histogram for tracking latency distributions with 2 KB of memory and sub -0.2% error. It uses float-like encoding for O(1) bucket indexing and trapezoid interpolation for accurate percentile estimation — with no floating-point math on the recording path.

Building a 2KB Histogram with Sub -0.2% Percentile Error

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