Rav1e Begins Adding SSE4.1 Support, More x86 Assembly

Written by Michael Larabel in Multimedia on 2 November 2019 at 07:39 AM EDT. 2 Comments
The Rust-written "rav1e" AV1 video encoder continues working on better performance potential with recent Intel/AMD CPUs.

Recently we reported on rav1e picking up SSSE3 and AArch64 NEON optimizations while this week is more hand-written x86 Assembly (ported from the speedy dav1d decoder) as well as initial SSE4.1 support.

SSE4.1 has been around now in CPUs for the past decade since Intel's Penryn processors. It's about time Rav1e supports SSE4.1 and should help on improving the performance for recent processors at least until it gets some serious Advanced Vector Extensions (AVX) optimizations.

Beyond having more x86 Assembly and initial SSE4.1 support, there is a fix for possible infinite loops and validation for frame size in this week's rav1e update. More details and downloads for the newest rav1e via GitHub.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.

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