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wangyiqiu / dbscan-python Public

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Performance Optimizations#28

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John-194 wants to merge 7 commits intowangyiqiu:masterwangyiqiu/dbscan-python:masterfrom

John-194:optimizationsJohn-194/dbscan-python:optimizationsCopy head branch name to clipboard

Conversation Commits7 (7)Checks Files changed

Open

Performance Optimizations#28
John-194 wants to merge 7 commits intowangyiqiu:masterfrom
John-194:optimizations

Commits

Commits on Apr 3, 2026

Replace timing-based granularity with simple heuristic in parfor
John-194
committed
Fix idle CPU usage using progressive backoff and CV based sleep in work-stealing loop
John-194
committed
Pre-compute cell keys for grid sort avoiding floor()
John-194
committed
Defer grid cell/mutex init to used cells only, reduce hash table size
John-194
committed
O(n) cluster renumbering via prefix sum, replace O(n log n) sort + hash table
John-194
committed
Eliminate sqrt from distance comparisons, use ternary for branchless codegen
John-194
committed
Dynamic thread count via getWorkers(), fix hardcoded P=36*8
John-194
committed

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