Zstd 1.5 Released With Big Performance Improvements
Written by Michael Larabel in Standards on 14 May 2021 at 01:09 PM EDT. 37 Comments
STANDARDS --
Zstd has already been enjoying phenomenal growth throughout the open-source software ecosystem thanks to its feature set and impressive performance, but can it get even better? Yes, with Zstd 1.5 that is out today there are some more mighty impressive performance improvements.

Zstd 1.5 improves the middle-level compression speed thanks to a new default match finder, improved high-level compression ratio speeds, and there are also a variety of decompression speed improvements. Many of the Zstd 1.5 speed improvements can be measured at 10~25%+ and in some cases substantially more, especially on the compression side but the decompression speed has also been enjoying big speed-ups.

Zstd 1.5's dynamic library also now supports multi-threading by default, various APIs promoted to stable, and a variety of other changes.

More details and downloads with today's Zstd 1.5 release via GitHub.

I'll be updating our compress-zstd test profile to Zstd 1.5 shortly and running a number of benchmarks on this exciting update to Facebook's Zstandard compression algorithm implementation. The Zstd 1.5 update should also be working its way to the mainline Linux kernel's implementation, hopefully with 5.14.
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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 or contacted via MichaelLarabel.com.

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