Lines Matching +full:fast +full:- +full:speed
5 \fBzstd\fR \- zstd, zstdmt, unzstd, zstdcat \- Compress or decompress \.zst files
8 \fBzstd\fR [\fIOPTIONS\fR] [\-|\fIINPUT\-FILE\fR] [\-o \fIOUTPUT\-FILE\fR]
11 \fBzstdmt\fR is equivalent to \fBzstd \-T0\fR
14 \fBunzstd\fR is equivalent to \fBzstd \-d\fR
17 \fBzstdcat\fR is equivalent to \fBzstd \-dcf\fR
20 …fast lossless compression algorithm and data compression tool, with command line syntax similar to…
26 …served by default\. It\'s possible to remove them automatically by using the \fB\-\-rm\fR command\.
29 …\fR displays progress notifications and result summary by default\. Use \fB\-q\fR to turn them off…
35 \fBzstd\fR displays a short help page when command line is an error\. Use \fB\-q\fR to turn it off\.
40 … selected operation mode\. If no \fIfiles\fR are given or \fIfile\fR is \fB\-\fR, \fBzstd\fR reads…
43 Unless \fB\-\-stdout\fR or \fB\-o\fR is specified, \fIfiles\fR are written to a new file whose name…
73 \fB\-z\fR, \fB\-\-compress\fR
74 …on mode is implied from the command name (for example, \fBunzstd\fR implies \fB\-\-decompress\fR)\.
77 \fB\-d\fR, \fB\-\-decompress\fR, \fB\-\-uncompress\fR
81 \fB\-t\fR, \fB\-\-test\fR
82 Test the integrity of compressed \fIfiles\fR\. This option is equivalent to \fB\-\-decompress \-\-s…
85 \fB\-b#\fR
89 \fB\-\-train FILEs\fR
93 \fB\-l\fR, \fB\-\-list\fR
94 … of these fields may not be available\. This command can be augmented with the \fB\-v\fR modifier\.
99 \fB\-#\fR: \fB#\fR compression level [1\-19] (default: 3)
102 \fB\-\-ultra\fR: unlocks high compression levels 20+ (maximum 22), using a lot more memory\. Note t…
105 …-\-fast[=#]\fR: switch to ultra\-fast compression levels\. If \fB=#\fR is not present, it defaults…
108 …-T#\fR, \fB\-\-threads=#\fR: Compress using \fB#\fR working threads (default: 1)\. If \fB#\fR is 0…
111 …-\-single\-thread\fR: Does not spawn a thread for compression, use a single thread for both I/O an…
114 \fB\-\-auto\-threads={physical,logical} (default: physical)\fR: When using a default amount of thre…
117 …-\-adapt[=min=#,max=#]\fR : \fBzstd\fR will dynamically adapt compression level to perceived I/O c…
120 \fB\-\-long[=#]\fR: enables long distance matching with \fB#\fR \fBwindowLog\fR, if not \fB#\fR is …
123 Note: If \fBwindowLog\fR is set to larger than 27, \fB\-\-long=windowLog\fR or \fB\-\-memory=window…
126 \fB\-D DICT\fR: use \fBDICT\fR as Dictionary to compress or decompress FILE(s)
129 \fB\-\-patch\-from FILE\fR: Specify the file to be used as a reference point for zstd\'s diff engin…
132 …-D together Note: \fB\-\-long\fR mode will be automatically activated if chainLog < fileLog (fileL…
135 …-\-rsyncable\fR : \fBzstd\fR will periodically synchronize the compression state to make the compr…
138 \fB\-C\fR, \fB\-\-[no\-]check\fR: add integrity check computed from uncompressed data (default: ena…
141 …-\-[no\-]content\-size\fR: enable / disable whether or not the original size of the file is placed…
144 \fB\-\-no\-dictID\fR: do not store dictionary ID within frame header (dictionary compression)\. The…
147 \fB\-M#\fR, \fB\-\-memory=#\fR: Set a memory usage limit\. By default, Zstandard uses 128 MB for de…
150 This is also used during compression when using with \-\-patch\-from=\. In this case, this paramete…
156 \fB\-\-stream\-size=#\fR : Sets the pledged source size of input coming from a stream\. This value …
159 \fB\-\-size\-hint=#\fR: When handling input from a stream, \fBzstd\fR must guess how large the sour…
162 \fB\-o FILE\fR: save result into \fBFILE\fR
165 \fB\-f\fR, \fB\-\-force\fR: disable input and output checks\. Allows overwriting existing files, in…
168 \fB\-c\fR, \fB\-\-stdout\fR: write to standard output (even if it is the console)
171 …-\-[no\-]sparse\fR: enable / disable sparse FS support, to make files with many zeroes smaller on …
174 …-\-rm\fR: remove source file(s) after successful compression or decompression\. If used in combina…
177 \fB\-k\fR, \fB\-\-keep\fR: keep source file(s) after successful compression or decompression\. This…
180 \fB\-r\fR: operate recursively on directories\. It selects all files in the named directory and all…
183 \fB\-\-filelist FILE\fR read a list of files to process as content from \fBFILE\fR\. Format is comp…
186 …-\-output\-dir\-flat DIR\fR: resulting files are stored into target \fBDIR\fR directory, instead o…
189 \fB\-\-output\-dir\-mirror DIR\fR: similar to \fB\-\-output\-dir\-flat\fR, the output files are sto…
192 …ut\-dir/var/tmp/abc"\. If there are multiple input files or directories, name collision resolution…
195 \fB\-\-format=FORMAT\fR: compress and decompress in other formats\. If compiled with support, zstd …
198 \fB\-h\fR/\fB\-H\fR, \fB\-\-help\fR: display help/long help and exit
201 …-V\fR, \fB\-\-version\fR: display version number and exit\. Advanced : \fB\-vV\fR also displays su…
204 \fB\-v\fR, \fB\-\-verbose\fR: verbose mode, display more information
207 \fB\-q\fR, \fB\-\-quiet\fR: suppress warnings, interactivity, and notifications\. specify twice to …
210 \fB\-\-no\-progress\fR: do not display the progress bar, but keep all other messages\.
213 \fB\-\-show\-default\-cparams\fR: Shows the default compression parameters that will be used for a …
216 \fB\-\-\fR: All arguments after \fB\-\-\fR are treated as files
230 …e overridden by corresponding command line arguments: \fB\-#\fR for compression level and \fB\-T#\…
233 …ression and decompression, reference the same dictionary, using command \fB\-D dictionaryFileName\…
236 \fB\-\-train FILEs\fR
237 … size (for example, 10 MB for a 100 KB dictionary)\. \fB\-\-train\fR can be combined with \fB\-r\f…
240 …-\-train\fR supports multithreading if \fBzstd\fR is compiled with threading support (default)\. A…
243 \fB\-o file\fR
247 \fB\-\-maxdict=#\fR
251 \fB\-#\fR
255 \fB\-B#\fR
259 \fB\-M#\fR, \fB\-\-memory=#\fR
263 \fB\-\-dictID=#\fR
264 … verify it is using the right dictionary\. By default, zstd will create a 4\-bytes random number I…
267 \fB\-\-train\-cover[=k#,d=#,steps=#,split=#,shrink[=#]]\fR
277 \fBzstd \-\-train\-cover FILEs\fR
280 \fBzstd \-\-train\-cover=k=50,d=8 FILEs\fR
283 \fBzstd \-\-train\-cover=d=8,steps=500 FILEs\fR
286 \fBzstd \-\-train\-cover=k=50 FILEs\fR
289 \fBzstd \-\-train\-cover=k=50,split=60 FILEs\fR
292 \fBzstd \-\-train\-cover=shrink FILEs\fR
295 \fBzstd \-\-train\-cover=shrink=2 FILEs\fR
298 \fB\-\-train\-fastcover[=k#,d=#,f=#,steps=#,split=#,accel=#]\fR
302 …e \fId\fR\. The subsegment is hashed to an index in the range [0,2^\fIf\fR \- 1]\. It is possible …
308 \fBzstd \-\-train\-fastcover FILEs\fR
311 \fBzstd \-\-train\-fastcover=d=8,f=15,accel=2 FILEs\fR
314 \fB\-\-train\-legacy[=selectivity=#]\fR
315 … improving its efficiency but reducing its possible maximum size\. \fB\-\-train\-legacy=s=#\fR is …
321 \fBzstd \-\-train\-legacy FILEs\fR
324 \fBzstd \-\-train\-legacy=selectivity=8 FILEs\fR
329 \fB\-b#\fR
333 \fB\-e#\fR
334 benchmark file(s) using multiple compression levels, from \fB\-b#\fR to \fB\-e#\fR (inclusive)
337 \fB\-i#\fR
341 \fB\-B#\fR, \fB\-\-block\-size=#\fR
345 \fB\-\-priority=rt\fR
346 set process priority to real\-time
349 \fBOutput Format:\fR CompressionLevel#Filename : IntputSize \-> OutputSize (CompressionRatio), Comp…
352 …r both compression and decompression speed, the entire input is compressed/decompressed in\-memory…
356 .SS "\-B#:"
357 …-threading is enabled\. Each compression job is run in parallel, so this value indirectly impacts …
359 .SS "\-\-zstd[=options]:"
360 …th advanced compression options\. The \fIoptions\fR are provided as a comma\-separated list\. You …
374 …wlog\fR is 10 (1 KiB) and the maximum is 30 (1 GiB) on 32\-bit platforms and 31 (2 GiB) on 64\-bit…
377 Note: If \fBwindowLog\fR is set to larger than 27, \fB\-\-long=windowLog\fR or \fB\-\-memory=window…
394 …which usually improves compression ratio\. It also slows down compression speed and increases memo…
397 …clog\fR is 6 (64 B) and the maximum is 29 (524 Mib) on 32\-bit platforms and 30 (1 Gib) on 64\-bit…
404 … chance to find a match which usually increases compression ratio but decreases compression speed\.
407 The minimum \fIslog\fR is 1 and the maximum is \'windowLog\' \- 1\.
414 Larger search lengths usually decrease compression ratio but improve decompression speed\.
424 …speed\. t For ZSTD_fast, it triggers ultra\-fast mode when > 0\. The value represents the amount o…
434 …n multithreading is enabled\. Reloading more data improves compression ratio, but decreases speed\.
447 …ession ratio at the expense of more memory during compression and a decrease in compression speed\.
473 Larger bucket sizes improve collision resolution but decrease compression speed\.
486 Larger values will improve compression speed\. Deviating far from the default value will likely res…
489 The default value is \fBwlog \- lhlog\fR\.
495 \fB\-\-zstd\fR=wlog=23,clog=23,hlog=22,slog=6,mml=3,tlen=48,strat=6