| /freebsd/contrib/bzip2/ |
| H A D | bzip2.1 | 53 be correctly restored at decompression time. File name handling is
105 filenames causes decompression from
164 the check occurs upon decompression, so it can only tell you that
185 Force decompression.
203 This really performs a trial decompression and throws away the result.
220 or decompression.
223 Reduce memory usage, for compression, decompression and testing. Files
268 compression and decompression. The flags \-1 through \-9
270 default) respectively. At decompression time, the block size used for
276 during decompression.
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| /freebsd/sys/contrib/zstd/doc/educational_decoder/ |
| H A D | zstd_decompress.h | 21 /******* DECOMPRESSION FUNCTIONS **********************************************/
22 /// Zstandard decompression functions.
36 /// Assumes decompression of a single frame
38 /******* END DECOMPRESSION FUNCTIONS ******************************************/
43 * or decompression
48 * Parse a provided dictionary blob for use in decompression
52 * can be used for decompression
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| /freebsd/sys/contrib/zstd/programs/ |
| H A D | README.md | 6 …-like arguments; includes dictionary builder, benchmark, and supports decompression of legacy zstd…
77 - __ZSTD_NODECOMPRESS__ : `zstd` cli will be compiled without support for decompression.
111 which can be loaded before compression and decompression.
114 …sion gains are achieved while simultaneously providing faster compression and decompression speeds.
134 The benchmark measures ratio, compressed size, compression and decompression speed.
149 -d : decompression
150 -D DICT: use DICT as Dictionary for compression or decompression
192 Advanced decompression arguments :
195 -M# : Set a memory usage limit for decompression
246 matches are found. Decompression speed usually improves when there are many long
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| /freebsd/sys/contrib/openzfs/tests/zfs-tests/tests/functional/fault/ |
| H A D | decompress_fault.ksh | 24 # Test that injected decompression errors are handled correctly.
28 # 2. Inject decompression errors on the file 20% of the time
30 # 4. Confirm that the decompression injection was added to the ZED logs
33 log_assert "Testing that injected decompression errors are handled correctly"
59 log_pass "Injected decompression errors are handled correctly"
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| /freebsd/sys/contrib/zstd/zlibWrapper/ |
| H A D | zstd_zlibwrapper.h | 61 /*** DECOMPRESSION ***/
66 Forcing zlib decompression with ZWRAP_setDecompressionType(ZWRAP_FORCE_ZLIB) slightly improves
67 decompression speed of zlib-encoded streams.
71 /* checks zstd decompression type */
74 /* Checks if zstd decompression is used for a given stream.
79 inflate() will return Z_NEED_DICT only for the first time what will improve decompression speed.
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| /freebsd/contrib/libarchive/libarchive/ |
| H A D | libarchive_internals.3 | 127 .Ss Decompression Layer
128 The decompression layer not only handles decompression,
131 The decompression API is a two stage peek/consume model.
133 the decompression layer must provide a pointer to at least
152 Decompression handlers that cannot seek forward should
156 A decompression handler has a specific lifecycle:
160 the decompression handler invokes the internal
230 The read formats have a similar lifecycle to the decompression handlers:
237 decompression metho
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| H A D | archive_read_filter.3 | 108 Enables auto-detection code and decompression support for the
112 Decompression using an external program is usually slower than
113 decompression through built-in libraries.
118 Enables all available decompression filters.
131 decompression option.
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| H A D | archive_read_support_filter_lz4.c | 189 * decompression. We can, however, still detect compressed archives
229 "Can't allocate data for lz4 decompression"); in lz4_reader_init()
255 "Can't allocate data for lz4 decompression"); in lz4_allocate_out_block()
278 "Can't allocate data for lz4 decompression"); in lz4_allocate_out_block_for_legacy()
507 Unfortunately, lz4 decompression API requires a whole block in lz4_filter_read_data_block()
508 for its decompression speed, so we read a whole block and allocate in lz4_filter_read_data_block()
593 /* Check if an error occurred in the decompression process. */ in lz4_filter_read_data_block()
596 ARCHIVE_ERRNO_MISC, "lz4 decompression failed"); in lz4_filter_read_data_block()
715 ARCHIVE_ERRNO_MISC, "lz4 decompression failed"); in lz4_filter_read_legacy_stream()
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| /freebsd/sys/contrib/zstd/lib/common/ |
| H A D | zstd_trace.h | 74 * Only set on decompression.
90 * The fully resolved CCtx parameters (NULL on decompression).
94 * The ZSTD_CCtx pointer (NULL on decompression).
139 * Trace the beginning of a decompression call.
140 * @param dctx The dctx pointer for the decompression.
149 * Trace the end of a decompression call.
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| /freebsd/sys/contrib/zstd/lib/legacy/ |
| H A D | zstd_v07.h | 45 `compressedSize` : must be _exact_ size of compressed input, otherwise decompression will fail.
73 /** Decompression context */
87 * Decompression using a pre-defined Dictionary content (see dictBuilder).
100 * Create a digested dictionary, ready to start decompression operation without startup delay.
107 * Decompression using a pre-digested Dictionary
141 * Streaming decompression howto
145 * Use ZBUFFv07_decompressInit() to start a new decompression operation,
146 * or ZBUFFv07_decompressInitDictionary() if decompression requires a dictionary.
171 /** Functions below provide recommended buffer sizes for Compression or Decompression operations.
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| H A D | zstd_v05.h | 29 … `compressedSize` : is the _exact_ size of the compressed blob, otherwise decompression will fail.
60 /** Decompression context */
74 * Decompression using a pre-defined Dictionary content (see dictBuilder).
114 * Streaming decompression
118 * Use ZBUFFv05_decompressInit() to start a new decompression operation,
119 * or ZBUFFv05_decompressInitDictionary() if decompression requires a dictionary.
143 /** Functions below provide recommended buffer sizes for Compression or Decompression operations.
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| H A D | zstd_v06.h | 38 … `compressedSize` : is the _exact_ size of the compressed blob, otherwise decompression will fail.
71 /** Decompression context */
85 * Decompression using a pre-defined Dictionary content (see dictBuilder).
125 * Streaming decompression howto
129 * Use ZBUFFv06_decompressInit() to start a new decompression operation,
130 * or ZBUFFv06_decompressInitDictionary() if decompression requires a dictionary.
155 /** Functions below provide recommended buffer sizes for Compression or Decompression operations.
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| H A D | zstd_v04.h | 31 … It must be equal or larger than originalSize, otherwise decompression will fail.
98 * Streaming decompression
102 * Use ZBUFF_decompressInit() to start a new decompression operation.
107 * Dictionary content must remain accessible during the decompression process.
126 /** The below functions provide recommended buffer sizes for Compression or Decompression operation…
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| /freebsd/sys/contrib/zstd/ |
| H A D | README.md | 63 offer faster compression and decompression speed
68 Decompression speed is preserved and remains roughly the same at all settings,
78 Compression Speed vs Ratio | Decompression Speed
80 …/CSpeed2.png "Compression Speed vs Ratio") | ![Decompression Speed](doc/images/DSpeed3.png "Decomp…
93 …is stored in a file called "dictionary", which must be loaded before compression and decompression.
99 Compression Ratio | Compression Speed | Decompression Speed
101 …oc/images/dict-cs.png "Compression Speed") | ![Decompression Speed](doc/images/dict-ds.png "Decomp…
104 …on gains are achieved while simultaneously providing _faster_ compression and decompression speeds.
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| H A D | CHANGELOG | 42 perf: Decompression loop refactor, speed improvements on `clang` and for `--long` modes (#2614 #263…
43 perf: Reduced stack usage during compression and decompression entropy stage (#2522 #2524, @terrell…
50 bug: Fix UBSAN error in decompression (#2625, @terrelln)
74 contrib: Seekable format - Decompression hanging edge case fix (#2516, @senhuang42)
77 contrib: Seekable format - Decompression fix for large offsets, (#2594, @azat)
135 perf: Improve small block decompression speed by 20%+, by @terrelln
137 perf: Improve decompression speed by improving ZSTD_wildcopy, by @helloguo (#2252, #2256)
169 perf: Improved decompression speed: x64 : +10% (clang) / +5% (gcc); ARM : from +15% to +50%, depend…
175 cli : -b -d command can now benchmark decompression on multiple files
194 perf: Improved decompression speed, by > 10%, by @terrelln
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| /freebsd/sys/dev/qat/qat_api/include/dc/ |
| H A D | cpa_dc_chain.h | 94 * 2nd operation is to perform decompression on compressed text
97 * 2nd entry is for decompression setup data*/
101 * 2nd operation is to perform decompression on compressed text
104 * 2nd entry is for decompression setup data*/
109 * 2nd operation is to perform decompression on compressed text
112 * 2nd entry is for decompression setup data*/
117 * 2nd operation is to perform decompression on compressed text
120 * 2nd entry is for decompression setup data*/
124 * 2nd operation is to perform decompression on compressed text
127 * 2nd entry is for decompression setup data*/
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| /freebsd/share/man/man4/ |
| H A D | ng_vjc.4 | 126 u_char enableDecomp; /* Enable decompression */
151 both compression and decompression are disabled and the node is
167 reported to the peer's decompression engine (see
221 Van Jacobson compression initializes both compression and decompression
222 at once, this node does not allow compression and decompression to
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| H A D | ng_ppp.4 | 133 Compression and decompression can be enabled by toggling the
169 Compression and decompression can be completely disabled by setting the
198 enabled, Van Jacobson compression and/or decompression will become active.
298 Connection to decompression engine
374 u_char enableDecompression; /* enable PPP decompression */
378 u_char enableVJDecompression; /* enable VJ decompression */
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| /freebsd/sys/contrib/zstd/lib/ |
| H A D | README.md | 15 `libzstd` default scope is pretty large, including compression, decompression, dictionary builder,
70 - Decompression source code lies in `lib/decompress`
85 …Decoding supported legacy format is a transparent capability triggered within decompression functi…
118 only one or the other of two decompression implementations. The smallest
159 the amount of extra memory used during decompression to store literals.
161 `ZSTD_DCtx` decompression contexts,
162 but might also result in a small decompression speed cost.
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| /freebsd/sys/contrib/zstd/examples/ |
| H A D | README.md | 8 - [Simple decompression](simple_decompression.c) :
33 - [Streaming decompression](streaming_decompression.c) :
43 - [Dictionary decompression](dictionary_decompression.c) :
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| /freebsd/contrib/xz/src/xz/ |
| H A D | xz.1 | 64 In addition, decompression of the
246 for compression and decompression by using
253 cannot do both compression and decompression and
370 After successful decompression, the source file is removed
520 the decompression by reducing the amount of disk I/O.
625 Decompression support for the format version 0 was removed in
706 Speeding up decompression.
772 On the same hardware, the decompression speed is approximately
775 the faster the decompression will usually be.
920 makes limited random-access decompression possible.
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| /freebsd/sys/contrib/openzfs/module/zstd/ |
| H A D | zfs_zstd.c | 150 /* Reserved fallback memory for decompression only */
170 /* Fallback memory structure used for decompression only if memory runs out */
185 * For decompression we use a different handler which also provides fallback
205 /* Decompression memory handler */
572 * decompression to counter the effects of padding which might be added in zfs_zstd_compress_impl()
574 * hell out of our decompression function. in zfs_zstd_compress_impl()
733 * Returns 0 on success (decompression function returned non-negative) in zfs_zstd_decompress_level_buf()
734 * and non-zero on failure (decompression function returned negative. in zfs_zstd_decompress_level_buf()
793 * Allocator for zstd decompression context using mempool_allocator with
805 /* Try harder, decompression shall not fail */ in zstd_dctx_alloc()
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| /freebsd/sys/contrib/zstd/doc/ |
| H A D | zstd_manual.html | 16 <li><a href="#Chapter6">Advanced decompression API (Requires v1.4.0+)</a></li>
19 <li><a href="#Chapter9">Streaming decompression - HowTo</a></li>
28 <li><a href="#Chapter18">Advanced decompression functions</a></li>
32 <li><a href="#Chapter22">Buffer-less streaming decompression (synchronous mode)</a></li>
39 The zstd compression library provides in-memory compression and decompression
176 <h3>Decompression context</h3><pre> When decompressing many times,
229 * This will set a memory budget for streaming decompression,
235 … * requires explicitly allowing such size at streaming decompression stage. */
257 … * Larger values increase compression and decompression speed, but decrease ratio.
464 <a name="Chapter6"></a><h2>Advanced decompression API (Requires v1.4.0+)</h2><pre></pre>
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| /freebsd/share/man/man5/ |
| H A D | tarfs.5 | |
| /freebsd/sys/contrib/openzfs/module/zstd/lib/ |
| H A D | zstd.h | 45 The zstd compression library provides in-memory compression and decompression
213 /*= Decompression context
286 * This will set a memory budget for streaming decompression,
292 … * requires explicitly allowing such size at streaming decompression stage. */
314 … * Larger values increase compression and decompression speed, but decrease ratio.
503 * Advanced decompression API
511 * Therefore, no new decompression function is necessary.
520 … * By default, a decompression context accepts window sizes <= (1 << ZSTD_WINDOWLOG_LIMIT_DEFAULT).
549 …* Setting a parameter is only possible during frame initialization (before starting decompression…
736 * Streaming decompression - HowTo
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