Linux 7.4 Slated to Land AVX-512 Optimized xor_gen For a Big Performance Win

{"heading":"AVX-512 Optimized xor_gen() Function","subheading":"AVX-512 Optimized xor_gen() Function","paragraph_1":"The AVX-512 optimized xor_gen() function is a key component of the Linux kernel's software RAID implementation. It is used for generating and validating parity blocks, which are essential for maintaining data integrity in RAID configurations.","paragraph_2":"The function has been optimized for AVX-512, a high-performance instruction set available on newer CPUs such as AMD Zen 4 and Intel's server CPUs. This optimization will result in faster and more efficient parity block generation and validation.","paragraph_3":"Eric Biggers, a Google engineer, has been leading the effort to optimize the xor_gen() function for AVX-512. His work has already resulted in significant performance improvements for other Linux crypto code, including AVX-512.","paragraph_4":"The AVX-512 optimized xor_gen() function is expected to be included in the Linux 7.4 kernel, which is scheduled to be merged in the second half of October. This update will benefit users with newer AMD and Intel CPUs, improving the overall performance of Linux software RAID."}