Module sketch 

Count-Min Sketch for sublinear frequency estimation

Provides O(1) space approximate frequency counting for memory patterns. Used to detect frequent memory pressure events without storing all history.

Structs

CountMinSketch

Count-Min Sketch for approximate frequency counting Space: O(width * depth), Query: O(depth), Update: O(depth)

PressureTracker

Memory pressure pattern tracker using Count-Min Sketch

PressureTrackerStats

SketchStats