Lines Matching +full:has +full:- +full:legacy +full:- +full:mode
6 - `zstd` : default CLI supporting gzip-like arguments; includes dictionary builder, benchmark, and …
7 - `zstd_nolegacy` : Same as `zstd` but without support for legacy zstd formats
8 - `zstd-small` : CLI optimized for minimal size; no dictionary builder, no benchmark, and no suppor…
9 - `zstd-compress` : version of CLI which can only compress into zstd format
10 - `zstd-decompress` : version of CLI which can only decompress zstd format
16 - __HAVE_THREAD__ : multithreading is automatically enabled when `pthread` is detected.
23 - __ZSTD_LEGACY_SUPPORT__ : `zstd` can decompress files compressed by older versions of `zstd`.
26 By default, `zstd` supports decoding legacy formats >= v0.4.0 (`ZSTD_LEGACY_SUPPORT=4`).
30 `ZSTD_LEGACY_SUPPORT=0` means _DO NOT_ support any legacy format.
31 if `ZSTD_LEGACY_SUPPORT >= 8`, it's the same as `0`, since there is no legacy format after `7`.
32 Note : `zstd` only supports decoding older formats, and cannot generate any legacy format.
34 - __HAVE_ZLIB__ : `zstd` can compress and decompress files in `.gz` format.
35 This is ordered through command `--format=gzip`.
44 - __HAVE_LZMA__ : `zstd` can compress and decompress files in `.xz` and `.lzma` formats.
45 This is ordered through commands `--format=xz` and `--format=lzma` respectively.
54 - __HAVE_LZ4__ : `zstd` can compress and decompress files in `.lz4` formats.
55 This is ordered through commands `--format=lz4`.
64 - __ZSTD_NOBENCH__ : `zstd` cli will be compiled without its integrated benchmark module.
68 - __ZSTD_NODICT__ : `zstd` cli will be compiled without support for the integrated dictionary build…
72 - __ZSTD_NOCOMPRESS__ : `zstd` cli will be compiled without support for compression.
75 A corresponding `Makefile` target using this ability is `zstd-decompress`.
77 - __ZSTD_NODECOMPRESS__ : `zstd` cli will be compiled without support for decompression.
80 A corresponding `Makefile` target using this ability is `zstd-compress`.
82 - __BACKTRACE__ : `zstd` can display a stack backtrace when execution
91 CLI supports aggregation of parameters i.e. `-b1`, `-e18`, and `-i1` can be joined into `-b1e18i1`.
96 When the name of the symlink has a specific value, it triggers an associated behavior.
97 - `zstdmt` : compress using all cores available on local system.
98 - `zcat` : will decompress and output target file using any of the supported formats. `gzcat` and `…
99 - `gzip` : if zlib support is enabled, will mimic `gzip` by compressing file using `.gz` format, re…
100 - `xz` : if lzma support is enabled, will mimic `xz` by compressing file using `.xz` format, removi…
101 - `lzma` : if lzma support is enabled, will mimic `lzma` by compressing file using `.lzma` format, …
102 - `lz4` : if lz4 support is enabled, will mimic `lz4` by compressing file using `.lz4` format. If l…
103 - `unzstd` and `unlz4` will decompress any of the supported format.
104 - `ungz`, `unxz` and `unlzma` will do the same, and will also remove source file by default (use `-…
108 Zstd offers a training mode, which can be used to tune the algorithm for a selected
110 in a file selected with the `-o` option (default name is `dictionary`),
122 1. Create the dictionary : `zstd --train PathToTrainingSet/* -o dictionaryName`
123 2. Compress with the dictionary: `zstd FILE -D dictionaryName`
124 3. Decompress with the dictionary: `zstd --decompress FILE.zst -D dictionaryName`
128 CLI includes in-memory compression benchmark module for zstd.
132 or names of directories can be used as parameters with `-r` option.
135 One can select compression levels starting from `-b` and ending with `-e`.
136 The `-i` parameter selects minimal time used for each of tested levels.
140 The full list of options can be obtained with `-h` or `-H` parameter:
143 zstd [args] [FILE(s)] [-o file]
146 with no FILE, or when FILE is - , read standard input
148 -# : # compression level (1-19, default: 3)
149 -d : decompression
150 -D DICT: use DICT as Dictionary for compression or decompression
151 -o file: result stored into `file` (only 1 output file)
152 -f : overwrite output without prompting, also (de)compress links
153 --rm : remove source file(s) after successful de/compression
154 -k : preserve source file(s) (default)
155 -h/-H : display help/long help and exit
158 -V : display Version number and exit
159 -c : write to standard output (even if it is the console)
160 -v : verbose mode; specify multiple times to increase verbosity
161 -q : suppress warnings; specify twice to suppress errors too
162 --no-progress : do not display the progress counter
163 -r : operate recursively on directories
164 --filelist FILE : read list of files to operate upon from FILE
165 --output-dir-flat DIR : processed files are stored into DIR
166 --output-dir-mirror DIR : processed files are stored into DIR respecting original directory structu…
167 --[no-]check : during compression, add XXH64 integrity checksum to frame (default: enabled). If spe…
168 -- : All arguments after "--" are treated as files
171 --ultra : enable levels beyond 19, up to 22 (requires more memory)
172 --long[=#]: enable long distance matching with given window log (default: 27)
173 --fast[=#]: switch to very fast compression levels (default: 1)
174 --adapt : dynamically adapt compression level to I/O conditions
175 --patch-from=FILE : specify the file to be used as a reference point for zstd's diff engine
176 -T# : spawns # compression threads (default: 1, 0==# cores)
177 -B# : select size of each job (default: 0==automatic)
178 --single-thread : use a single thread for both I/O and compression (result slightly different than …
179 --rsyncable : compress using a rsync-friendly method (-B sets block size)
180 --exclude-compressed: only compress files that are not already compressed
181 --stream-size=# : specify size of streaming input from `stdin`
182 --size-hint=# optimize compression parameters for streaming input of approximately this size
183 --target-compressed-block-size=# : generate compressed block of approximately targeted size
184 --no-dictID : don't write dictID into header (dictionary compression only)
185 --[no-]compress-literals : force (un)compressed literals
186 --format=zstd : compress files to the .zst format (default)
187 --format=gzip : compress files to the .gz format
188 --format=xz : compress files to the .xz format
189 --format=lzma : compress files to the .lzma format
190 --format=lz4 : compress files to the .lz4 format
193 -l : print information about zstd compressed files
194 --test : test compressed file integrity
195 -M# : Set a memory usage limit for decompression
196 --[no-]sparse : sparse mode (default: disabled)
199 --train ## : create a dictionary from a training set of files
200 --train-cover[=k=#,d=#,steps=#,split=#,shrink[=#]] : use the cover algorithm with optional args
201 --train-fastcover[=k=#,d=#,f=#,steps=#,split=#,accel=#,shrink[=#]] : use the fast cover algorithm w…
202 --train-legacy[=s=#] : use the legacy algorithm with selectivity (default: 9)
203 -o DICT : DICT is dictionary name (default: dictionary)
204 --maxdict=# : limit dictionary to specified size (default: 112640)
205 --dictID=# : force dictionary ID to specified value (default: random)
208 -b# : benchmark file(s), using # compression level (default: 3)
209 -e# : test all compression levels successively from -b# to -e# (default: 1)
210 -i# : minimum evaluation time in seconds (default: 3s)
211 -B# : cut file into independent blocks of size # (default: no block)
212 -S : output one benchmark result per input file (default: consolidated result)
213 --priority=rt : set process priority to real-time
217 There is no "generic" way to pass "any kind of parameter" to `zstd` in a pass-through manner.
218 Using environment variables for this purpose has security implications.
229 which is either 64 in 32-bit mode, or 256 for 64-bit environments.
232 One such scenario is `tar --zstd`.
235 `-#` for compression level and `-T#` for number of threads.
238 ### Long distance matching mode
239 The long distance matching mode, enabled with `--long`, is designed to improve
243 Enabling this mode sets the window size to `128 MiB` and thus increases the memory
257 ---------------------------|---------------------
261 |:-------|------------------:|-------------------------:|---------------------------:|
262 | `zstd -1` | `5.065` | `284.8 MB/s` | `759.3 MB/s` |
263 | `zstd -5` | `5.826` | `124.9 MB/s` | `674.0 MB/s` |
264 | `zstd -10` | `6.504` | `29.5 MB/s` | `771.3 MB/s` |
265 | `zstd -1 --long` | `17.426` | `220.6 MB/s` | `1638.4 MB/s` |
266 | `zstd -5 --long` | `19.661` | `165.5 MB/s` | `1530.6 MB/s` |
267 | `zstd -10 --long`| `21.949` | `75.6 MB/s` | `1632.6 MB/s` |
281 |:-------|------------------:|------------------:|---------------------:|
282 | `zstd -1` | `2.878` | `231.7 MB/s` | `594.4 MB/s` |
283 | `zstd -1 --long` | `2.929` | `106.5 MB/s` | `517.9 MB/s` |
284 | `zstd -5` | `3.274` | `77.1 MB/s` | `464.2 MB/s` |
285 | `zstd -5 --long` | `3.319` | `51.7 MB/s` | `371.9 MB/s` |
286 | `zstd -10` | `3.523` | `16.4 MB/s` | `489.2 MB/s` |
287 | `zstd -10 --long`| `3.566` | `16.2 MB/s` | `415.7 MB/s` |
301 `zstdcat -D dictionary -qc -- file.zst | grep pattern`