Dandandan opened a new pull request #10002: URL: https://github.com/apache/arrow/pull/10002
This is a PoC to get some more SIMD instructions in Arrow without heavily inspired by this article shared by @jorgecarleitao : https://www.nickwilcox.com/blog/autovec2/ This allows dispatching on CPU features, letting the compiler auto-vectorize the code without losing portability or introducing unsafe blocks. Here we use the multiversion crate to easily add more vectorization. On my machine: ``` min 512 time: [957.16 ns 958.57 ns 960.23 ns] change: [-24.964% -24.524% -24.093%] (p = 0.00 < 0.05) Performance has improved. Found 2 outliers among 100 measurements (2.00%) 1 (1.00%) high mild 1 (1.00%) high severe max 512 time: [947.74 ns 949.47 ns 952.04 ns] change: [-23.380% -22.955% -22.562%] (p = 0.00 < 0.05) Performance has improved. Found 3 outliers among 100 measurements (3.00%) 2 (2.00%) high mild 1 (1.00%) high severe ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
