Counting set bits in an interesting way

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  • sse-popcount

    SIMD (SSE) population count --- http://0x80.pl/articles/sse-popcount.html

    • The builtin POPCNT that came with Intel's SSE4 (SSE4a for AMD) is much faster. However, at a certain point, using AVX2 (and AVX-512 if present) is actually faster yet [1] - at least for 512 byte inputs or larger.

    [1]: https://github.com/WojciechMula/sse-popcount

  • 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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