The copyright of zstd has been transferred to Facebook as part of this
v1.0 release. It also comes with a patent grant and a new public
streaming API (previously the API was in flux and only available on
static builds).
Zstd, short for Zstandard, is a real-time compression algorithm providing
high compression ratios. It offers a very wide range of compression vs.
speed trade-offs while being backed by a very fast decoder. It offers
a special mode for small data called "dictionary compression" and it can
create dictionaries from any sample set. Zstd is BSD-licensed.
Using Izbench on the Silesia compression corpus, zstd ranked at the
top with a compression ratio of 2.877, a compression rate of 325 Mb/s,
and a decompression rate of 325. Zlib followed at 2.730, 95 Mb/s (C)
and 360 Mb/s (D). See WWW page for the full benchmark results.
