Robert Clausecker
I'm a doctoral student researching the application of SIMD techniques to combinatorial (i.e. non-numerical) algorithms researching at Zuse Institute Berlin.
I was invited to become a ports committer in 2023 and do ports tree quality assurance for armv7 and arm64. Last year, I was hired by the FreeBSD Foundation to improve the libc string functions with SIMD techniques for amd64. The project was completed successfully and will be part of FreeBSD 14.1.
Session
Last year, the FreeBSD Foundation sponsored work to reimplement the libc string functions with SIMD techniques for amd64. As a result, performance was improved by a factor of 5 on average. In this talk, we'll have a look into the basics of SIMD programming, techniques used in this project and how the various constraints and challenges posed by string processing were negotiated.