Lines Matching +full:zlib +full:- +full:dev

1 .\"-
2 .\" Copyright (c) 2004-2016 Maxim Sobolev <sobomax@FreeBSD.org>
48 class will be able to decompress the resulting image at run-time.
56 .Bl -enum
69 .Bl -tag -width indent
70 .It Fl A Op Ar lzma | Ar zlib | Ar zstd
73 .Ar zlib .
77 algorithm provides noticeable better compression levels than zlib on the same
84 algorithm provides better compression levels than zlib on the same data set.
85 It also has faster compression and decompression speed than zlib.
105 .Va 0-9 .
112 .Ar zlib ,
114 .Va 1-9 .
117 default for zlib is
123 .Va 1-19 .
129 Enable de-duplication.
135 typically around 3-5% of a final size of the compressed image.
154 .Xr zlib 3
172 Disable zero-block detection and elimination.
178 detects and compresses zero blocks in a space-efficient way.
188 .Xr zlib 3
189 are only 1-2% less than those achieved with
198 Additionally, the threshold at 16-32 kB where a larger cluster size does not
200 .Xr zlib 3
210 The de-duplication is a
212 specific feature and while it does not require any changes to on-disk
232 .Ex -std
238 .Bd -literal -offset indent
243 .Bd -literal -offset indent
248 .Bd -literal -offset indent
253 .Bd -literal -offset indent
254 mdconfig -f /src.img.uzip
258 .Bd -literal -offset indent
259 mount -o ro /dev/md0.uzip /mnt
265 .Xr zlib 3 ,