Lookup table slower than doing the math, and SIMD operations 10x slower than that.

• criterion.rs

  30 4,153 6.5 Rust

  Statistics-driven benchmarking library for Rust

Criterion is easy to use.

• two-buffers

  1 0 10.0 Rust

Here's a crate based on what I understood from your post. You're summing the square of the difference between two buffers, yes? Straight up summing them is the fastest on my PC. Also, I have to note - summing even 32,768 items of that kind could overflow an i32 (when the square of the diff are all 65536).

• InfluxDB

  www.influxdata.com sponsored

  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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