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wangyiqiu
dbscan-python
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Performance Optimizations
- #28
#28
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John-194
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Performance Optimizations
#28
John-194
wants to merge 10 commits into
wangyiqiu:master
wangyiqiu/dbscan-python:master
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John-194:optimizations
John-194/dbscan-python:optimizations
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Commits
Commits on Apr 3, 2026
Replace timing-based granularity with simple heuristic in parfor
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39805c2
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Fix idle CPU usage using progressive backoff and CV based sleep in work-stealing loop
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8da5e33
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Pre-compute cell keys for grid sort avoiding floor()
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Defer grid cell/mutex init to used cells only, reduce hash table size
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O(n) cluster renumbering via prefix sum, replace O(n log n) sort + hash table
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Eliminate sqrt from distance comparisons, use ternary for branchless codegen
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Dynamic thread count via getWorkers(), fix hardcoded P=36*8
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909a621
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Commits on Jul 18, 2026
Fix undefined behaviour in CAS operations
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e83de83
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Fix DCLP race on nbrCache
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Add static_assert for deque age_t size
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