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robin-hood-hashing
Discontinued Fast & memory efficient hashtable based on robin hood hashing for C++11/14/17/20
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
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unordered_dense
A fast & densely stored hashmap and hashset based on robin-hood backward shift deletion
I recently did the work to pull boost::unordered out of the rest of boost and make it standalone for one of my own projects. I figured I'd link it here too in case it was useful to someone: https://github.com/MikePopoloski/boost_unordered
Also, FYI there is robin_hood::unordered_{map,set} which has very high performance, and is header-only and standalone.
That's deprecated. Use https://github.com/martinus/unordered_dense instead And yes, tell use if it's any better(it should)
Related posts
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unordered_dense: A Fast & Densely Stored Hashmap And Hashset Based On Robin-Hood Backward Shift Deletion
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unordered_dense: A fast, densely stored hashmap based on backward shift deletion
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If this isn't the perfect data structure, why?
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Solving “Two Sum” in C with a tiny hash table
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Convenient Containers v1.0.3: Better compile speed, faster maps and sets