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| author | Yann Collet <cyan@fb.com> | 2019-04-11 22:19:48 (GMT) |
|---|---|---|
| committer | Yann Collet <cyan@fb.com> | 2019-04-11 22:20:46 (GMT) |
| commit | bcb26565a732062759a2428e167e27ad3c2f6e96 (patch) | |
| tree | 7b192662cba336b688b23ea04fcd6f48cbb3fc48 /programs | |
| parent | 8d76c8a44a15cc7c0c1f345ba750e44edac7abb7 (diff) | |
| download | lz4-bcb26565a732062759a2428e167e27ad3c2f6e96.zip lz4-bcb26565a732062759a2428e167e27ad3c2f6e96.tar.gz lz4-bcb26565a732062759a2428e167e27ad3c2f6e96.tar.bz2 | |
improved documentation for LZ4 dictionary compression
Diffstat (limited to 'programs')
| -rw-r--r-- | programs/README.md | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/programs/README.md b/programs/README.md index 2ad0449..23c944b 100644 --- a/programs/README.md +++ b/programs/README.md @@ -38,7 +38,9 @@ Arguments : -9 : High compression -d : decompression (default for .lz4 extension) -z : force compression + -D FILE: use FILE as dictionary -f : overwrite output without prompting + -k : preserve source files(s) (default) --rm : remove source file(s) after successful de/compression -h/-H : display help/long help and exit @@ -51,17 +53,20 @@ Advanced arguments : -m : multiple input files (implies automatic output filenames) -r : operate recursively on directories (sets also -m) -l : compress using Legacy format (Linux kernel compression) - -B# : Block size [4-7] (default : 7) + -B# : cut file into blocks of size # bytes [32+] + or predefined block size [4-7] (default: 7) -BD : Block dependency (improve compression ratio) + -BX : enable block checksum (default:disabled) --no-frame-crc : disable stream checksum (default:enabled) --content-size : compressed frame includes original size (default:not present) --[no-]sparse : sparse mode (default:enabled on file, disabled on stdout) +--favor-decSpeed: compressed files decompress faster, but are less compressed +--fast[=#]: switch to ultra fast compression level (default: 1) + Benchmark arguments : -b# : benchmark file(s), using # compression level (default : 1) -e# : test all compression levels from -bX to # (default : 1) - -i# : minimum evaluation time in seconds (default : 3s) - -B# : cut file into independent blocks of size # bytes [32+] - or predefined block size [4-7] (default: 7) + -i# : minimum evaluation time in seconds (default : 3s)``` ``` #### License |