Optimize Quaternary collections; update README#187
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ChrisPulman merged 2 commits intomainfrom Feb 1, 2026
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Improve performance and memory usage in QuaternaryList and QuaternaryDictionary by leveraging CollectionsMarshal, Span/AsSpan, ArrayPool and ArrayPool-backed bucketization, plus parallelized shard inserts and reduced allocations. Introduces System.Runtime.InteropServices usage and ref-based value assignments (GetValueRefOrAddDefault) to avoid double lookups. Refactors bucket counting/indices to use localized arrays/spans and updates contains/CopyTo paths to use CollectionsMarshal for zero-allocation iteration. Massively expand README with comprehensive QuaternaryList/QuaternaryDictionary documentation: features, benchmarks, API references, usage and migration guides from DynamicData, reactive stream examples, an AddressBook sample (cleaned up and modernized), and performance tips. Overall: runtime and allocation optimizations in code, and extensive docs and examples for users.
Add a new QuadDictionary (NET8+), a pooled, high-performance hash table using ArrayPool for entries/buckets and custom GetValueRefOrAddDefault/GetKeys/GetValues APIs. Update QuaternaryDictionary to use QuadDictionary instances instead of Dictionary, replacing CollectionsMarshal calls with the new direct-ref APIs and switching .Keys/.Values access to GetKeys/GetValues. Update README benchmark numbers accordingly. These changes aim to reduce allocations and improve lookup/insertion performance.
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Improve performance and memory usage in QuaternaryList and QuaternaryDictionary by leveraging CollectionsMarshal, Span/AsSpan, ArrayPool and ArrayPool-backed bucketization, plus parallelized shard inserts and reduced allocations. Introduces System.Runtime.InteropServices usage and ref-based value assignments (GetValueRefOrAddDefault) to avoid double lookups. Refactors bucket counting/indices to use localized arrays/spans and updates contains/CopyTo paths to use CollectionsMarshal for zero-allocation iteration.
Massively expand README with comprehensive QuaternaryList/QuaternaryDictionary documentation: features, benchmarks, API references, usage and migration guides from DynamicData, reactive stream examples, an AddressBook sample (cleaned up and modernized), and performance tips. Overall: runtime and allocation optimizations in code, and extensive docs and examples for users.
Add a new internal QuadDictionary (NET8+), a pooled, high-performance hash table using ArrayPool for entries/buckets and custom GetValueRefOrAddDefault/GetKeys/GetValues APIs. Update QuaternaryDictionary to use QuadDictionary instances instead of Dictionary, replacing CollectionsMarshal calls with the new direct-ref APIs and switching .Keys/.Values access to GetKeys/GetValues. Update README benchmark numbers accordingly. These changes aim to reduce allocations and improve lookup/insertion performance.