Lines Matching full:compression
20 …compression algorithm and data compression tool, with command line syntax similar to \fBgzip\fR(1)…
89 Benchmark file(s) using compression level \fI#\fR\. See \fIBENCHMARK\fR below for a description of …
102 …compression level [1\-19] (default: 3)\. Higher compression levels \fIgenerally\fR produce higher …
105 \fB\-\-ultra\fR: unlocks high compression levels 20+ (maximum 22), using a lot more memory\. Note t…
108 …compression levels\. If \fB=#\fR is not present, it defaults to \fB1\fR\. The higher the value, th…
114 \fB\-\-single\-thread\fR: Use a single thread for both I/O and compression\. As compression is seri…
120 Note 2: this mode is different from \fB\-T1\fR, which spawns 1 compression thread in parallel with …
126 …#,max=#]\fR: \fBzstd\fR will dynamically adapt compression level to perceived I/O conditions\. Com…
132 … compressor and decompressor\. This setting is designed to improve the compression ratio for files…
141 …ference point for zstd\'s diff engine\. This is effectively dictionary compression with some conve…
150 … use \fB\-\-patch\-from\fR in \fB\-\-single\-thread\fR mode to improve compression ratio at the co…
153 Note: for level 19, you can get increased compression ratio at the cost of speed by specifying \fB\…
156 …compression state to make the compressed file more rsync\-friendly\. There is a negligible impact …
165 \fB\-\-no\-dictID\fR: do not store dictionary ID within frame header (dictionary compression)\. The…
171 This is also used during compression when using with \fB\-\-patch\-from=\fR\. In this case, this pa…
177 …tion will be used to better optimize compression parameters, resulting in better and potentially f…
180 …compression parameters\. If the stream size is relatively small, this guess may be a poor one, res…
183 …ks can still be larger or smaller\. Enabling this feature can decrease compression speed by up to …
201 \fB\-\-rm\fR: remove source file(s) after successful compression or decompression\. This command is…
204 \fB\-k\fR, \fB\-\-keep\fR: keep source file(s) after successful compression or decompression\. This…
222 …f compiled with support, zstd can compress to or decompress from other compression algorithm forma…
240 …ms\fR: shows the default compression parameters that will be used for a particular input file, bas…
262 … currently supported\. They set the default compression level and number of threads to use during …
265 …d with a warning message\. \fBZSTD_CLEVEL\fR just replaces the default compression level (\fB3\fR)…
268 …sed to set the number of threads \fBzstd\fR will attempt to use during compression\. If the value …
271 …sponding command line arguments: \fB\-#\fR for compression level and \fB\-T#\fR for number of comp…
273 .SH "ADVANCED COMPRESSION OPTIONS"
274 …compression levels plus the fast levels\. A compression level is translated internally into multip…
277 …want to change and the rest will be taken from the selected or default compression level\. The lis…
291 The higher number of increases the chance to find a match which usually improves compression ratio\…
301 …s cause fewer collisions which usually makes compression faster, but requires more memory during c…
311 …which usually improves compression ratio\. It also slows down compression speed and increases memo…
321 …ses the chance to find a match which usually increases compression ratio but decreases compression…
331 Larger search lengths usually decrease compression ratio but improve decompression speed\.
341 …arching\. A larger \fBtargetLength\fR usually improves compression ratio but decreases compression…
344 …act is reversed: a larger \fBtargetLength\fR increases compression speed but decreases compression…
354 …vailable when multithreading is enabled\. Reloading more data improves compression ratio, but decr…
367 …hash tables usually improve compression ratio at the expense of more memory during compression and…
380 Larger/very small values usually decrease compression ratio\.
393 Larger bucket sizes improve collision resolution but decrease compression speed\.
406 …ger values will improve compression speed\. Deviating far from the default value will likely resul…
412 The following parameters sets advanced compression options to something similar to predefined level…
418 …compression job\. This parameter is only available when multi\-threading is enabled\. Each compres…
421 …compression, which greatly improves efficiency on small files and messages\. It\'s possible to tra…
428 Since dictionary compression is mostly effective for small files, the expectation is that the train…
443 …compression level during training (optional)\. Will generate statistics more tuned for selected co…
468 …bles in size until compression ratio of the truncated dictionary is at most \fIshrinkDictMaxRegres…
524 … provides a benchmarking mode that can be used to easily find suitable compression parameters, or …
528 benchmark file(s) using compression level #
532 benchmark file(s) using multiple compression levels, from \fB\-b#\fR to \fB\-e#\fR (inclusive)
554 \fBMethodology:\fR For both compression and decompression speed, the entire input is compressed/dec…
560 The \fIzstandard\fR format is specified in Y\. Collet, "Zstandard Compression and the \'application…