Part of my infrastructure uses compressed "dd" disc images. Last week I switched from using "xz" to "zstd" for them and "zstd -19" compresses almost as well as xz (1.8GB vs 1.7GB), but the threaded decompression is >10x faster (72s -> 6s).
I made this change coincidentally, the day before the xz compromise.
I made this change coincidentally, the day before the xz compromise.