| /freebsd-12-stable/crypto/openssl/doc/man3/ |
| D | SSL_COMP_add_compression_method.pod | 7 - handle SSL/TLS integrated compression methods
26 SSL_COMP_add_compression_method() adds the compression method B<cm> with
27 the identifier B<id> to the list of available compression methods. This
32 compression methods or NULL on error.
34 SSL_COMP_get0_name() returns the name of the compression method B<comp>.
36 SSL_COMP_get_id() returns the id of the compression method B<comp>.
39 maintain the internal table of compression methods.
43 The TLS standard (or SSLv3) allows the integration of compression methods
44 into the communication. The TLS RFC does however not specify compression
46 way to integrate compression with unknown peers. It is therefore currently not
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| D | SSL_SESSION_get_compress_id.pod | 6 - get details about the compression associated with a session
16 If compression has been negotiated for an ssl session then
17 SSL_SESSION_get_compress_id() will return the id for the compression method or
18 0 otherwise. The only built-in supported compression method is zlib which has an
23 SSL_SESSION_get_compress_id() returns the id of the compression method or 0 if
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| D | CMS_compress.pod | 16 is the compression algorithm to use or B<NID_undef> to use the default
17 algorithm (zlib compression). B<in> is the content to be compressed.
22 The only currently supported compression algorithm is zlib using the NID
56 Additional compression parameters such as the zlib compression level cannot
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| /freebsd-12-stable/sys/contrib/zstd/programs/ |
| D | zstd.1.md | 18 `zstd` is a fast lossless compression algorithm and data compression tool,
21 `zstd` offers highly configurable compression speed,
23 and strong modes nearing lzma compression ratios.
92 Benchmark file(s) using compression level #
104 `#` compression level \[1-19] (default: 3)
106 unlocks high compression levels 20+ (maximum 22), using a lot more memory.
113 This setting is designed to improve the compression ratio for files with
119 switch to ultra-fast compression levels.
121 The higher the value, the faster the compression speed,
122 at the cost of some compression ratio.
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| D | README.md | 86 which can be loaded before compression and decompression.
88 Using a dictionary, the compression ratio achievable on small data improves dramatically.
89 These compression gains are achieved while simultaneously providing faster compression and decompre…
92 Dictionary gains are mostly effective in the first few KB. Then, the compression algorithm
103 CLI includes in-memory compression benchmark module for zstd.
109 The benchmark measures ratio, compressed size, compression and decompression speed.
110 One can select compression levels starting from `-b` and ending with `-e`.
123 -# : # compression level (1-19, default: 3)
128 --rm : remove source file(s) after successful de/compression
140 --no-dictID : don't write dictID into header (dictionary compression)
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| /freebsd-12-stable/contrib/libarchive/tar/ |
| D | bsdtar.c | 155 char compression, compression2; in main() local
172 compression = compression2 = '\0'; in main()
386 if (compression != '\0') in main()
389 compression); in main()
390 compression = opt; in main()
438 if (compression != '\0') in main()
441 compression); in main()
442 compression = opt; in main()
446 if (compression != '\0') in main()
449 compression); in main()
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| /freebsd-12-stable/sys/contrib/zstd/ |
| D | README.md | 3 __Zstandard__, or `zstd` as short version, is a fast lossless compression algorithm,
4 targeting real-time compression scenarios at zlib-level and better compression ratios.
23 For reference, several fast compression algorithms were tested and compared
28 on the [Silesia compression corpus].
31 [Silesia compression corpus]: http://sun.aei.polsl.pl/~sdeor/index.php?page=silesia
48 Zstd can also offer stronger compression ratios at the cost of compression speed.
51 a property shared by most LZ compression algorithms, such as [zlib] or lzma.
58 on the [Silesia compression corpus].
64 A few other algorithms can produce higher compression ratios at slower speeds, falling outside of t…
68 ### The case for Small Data compression
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| D | NEWS | 4 perf: better compression at levels 13-15
5 cli : asynchronous compression by default, for faster experience (use --single-thread for former be…
7 cli : added command --fast=#, for faster compression modes
10 api : compression levels can be negative, for even more speed
12 api : ZSTDMT can accept new compression parameters during compression
35 fix : multi-threading compression works with custom allocators
37 fix : a rare compression bug when compression generates very large distances and bunch of other con…
65 new : contrib/adaptive-compression, I/O driven compression strength, by Paul Cruz (@paulcruz74)
142 lib : improved : faster decompression speed at ultra compression settings and 32-bits mode
158 Improved : slightly better compression ratio at --ultra levels (>= 20)
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| /freebsd-12-stable/tests/sys/cddl/zfs/tests/history/ |
| D | history_003_pos.ksh | 70 $ZFS set compression=off $TESTPOOL/$TESTFS
71 $ZFS set compression=on $TESTPOOL/$TESTFS
72 $ZFS set compression=off $TESTPOOL/$TESTFS
73 $ZFS set compression=on $TESTPOOL/$TESTFS
74 $ZFS set compression=off $TESTPOOL/$TESTFS
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| D | history_002_pos.ksh | 92 compression on compression off \
93 compression lzjb aclmode discard \
103 compression gzip compression gzip-$((RANDOM%9 + 1)) \
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| /freebsd-12-stable/contrib/libarchive/libarchive/ |
| D | archive_write_add_filter_lrzip.c | 47 enum { lzma = 0, bzip2, gzip, lzo, none, zpaq } compression; member
105 data->compression = bzip2; in archive_write_lrzip_options()
107 data->compression = gzip; in archive_write_lrzip_options()
109 data->compression = lzo; in archive_write_lrzip_options()
111 data->compression = none; in archive_write_lrzip_options()
113 data->compression = zpaq; in archive_write_lrzip_options()
141 switch (data->compression) { in archive_write_lrzip_open()
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| /freebsd-12-stable/contrib/file/magic/Magdir/ |
| D | gentoo | 71 # determine the compression used by looking at the second member name
73 >>>>>&0 string gz\0 using gzip compression
74 >>>>>&0 string bz2\0 using bzip2 compression
75 >>>>>&0 string lz\0 using lzip compression
76 >>>>>&0 string lz4\0 using lz4 compression
77 >>>>>&0 string lzo\0 using lzo compression
78 >>>>>&0 string xz\0 using xz compression
79 >>>>>&0 string zst\0 using zstd compression
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| D | llvm | 9 0 string llvc0 LLVM byte-codes, null compression
10 0 string llvc1 LLVM byte-codes, gzip compression
11 0 string llvc2 LLVM byte-codes, bzip2 compression
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| /freebsd-12-stable/sys/contrib/zstd/zlibWrapper/ |
| D | README.md | 34 #### Enabling zstd compression within your project
37 Your project should work as before with zlib. There are two options to enable zstd compression:
81 One can select compression levels starting from `-b` and ending with `-e`. The `-i` parameter selec…
86 #### Improving speed of streaming compression
88 During streaming compression the compressor never knows how big is data to compress.
89 …compression can be improved by providing size of source data to the compressor. By default streami…
90 …dgedSrcSize()` function that allows to change a pledged source size for a given compression stream.
91 The function will change zstd compression parameters what may improve compression speed and/or rati…
98 The ordinary zlib compression of two files/streams allocates two contexts:
102 The speed of compression can be improved with reusing a single context with following steps:
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| /freebsd-12-stable/contrib/libarchive/libarchive/test/ |
| D | test_read_truncated_filter.c | 36 test_truncation(const char *compression, in test_truncation() argument
69 compression); in test_truncation()
84 snprintf(path, sizeof(path), "%s%d", compression, i); in test_truncation()
122 compression); in test_truncation()
126 snprintf(path, sizeof(path), "%s%d", compression, i); in test_truncation()
130 compression); in test_truncation()
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| /freebsd-12-stable/contrib/libarchive/ |
| D | README.md | 100 * gzip compression
101 * bzip2 compression
102 * compress/LZW compression
103 * lzma, lzip, and xz compression
104 * lz4 compression
105 * lzop compression
106 * zstandard compression
131 * gzip compression
132 * bzip2 compression
133 * compress/LZW compression
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| /freebsd-12-stable/tests/sys/cddl/zfs/tests/rootpool/ |
| D | rootpool_007_neg.ksh | 63 log_must $ZFS set compression=$orig_compress $rootfs
71 typeset orig_compress=$(get_prop compression $rootfs)
81 log_mustnot $ZFS set compression=${gtype[i]} $rootfs
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| /freebsd-12-stable/sbin/hastd/ |
| D | hast_compression.c | 209 int compression; in compression_send() local
213 compression = res->hr_compression; in compression_send()
215 switch (compression) { in compression_send()
225 compression = HAST_COMPRESSION_HOLE; in compression_send()
237 nv_add_string(nv, compression_name(compression), "compression"); in compression_send()
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| /freebsd-12-stable/sys/contrib/xz-embedded/linux/Documentation/ |
| D | xz.txt | 2 XZ data compression in Linux
7 XZ is a general purpose data compression format with high compression
8 ratio and relatively fast decompression. The primary compression
10 compression ratio even further. E.g. Branch/Call/Jump (BCJ) filters
11 improve compression ratio of executable data.
20 For userspace, XZ Utils provide a zlib-like compression library
43 from XZ Utils. The wrapper sets compression options to values suitable
54 Notes on compression options
84 use a big dictionary: for maximum compression, the dictionary should
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| /freebsd-12-stable/sys/cddl/boot/zfs/ |
| D | README | 8 lz4.c compression support
9 lzjb.c compression support
11 zfssubr.c checksum, compression and raidz support
|
| /freebsd-12-stable/contrib/xz/ |
| D | TODO | 11 automatically scale down the compression settings enough even though
16 This is due to faster compression presets used by XZ Utils, and
19 compress extremely well, so going from compression ratio of 0.003
28 time and calculated (de)compression speed won't make sense in the
57 Multithreaded compression:
81 so that the encoding speed vs. compression ratio can be optimized
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| /freebsd-12-stable/sys/contrib/zstd/contrib/pzstd/ |
| D | README.md | 4 It provides Zstandard format compatible compression and decompression that is able to utilize multi…
34 …on an Intel Core i7 @ 3.1 GHz, each using 4 threads, with the [Silesia compression corpus](http://…
40 The test procedure was to run each of the following commands 2 times for each compression level, an…
48 PZstandard was tested using compression levels 1-19, and Pigz was tested using compression levels 1…
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| /freebsd-12-stable/sys/contrib/zstd/lib/ |
| D | libzstd.pc.in | 1 # ZSTD - standard compression algorithm
10 Description: fast lossless compression algorithm library
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| /freebsd-12-stable/tests/sys/cddl/zfs/tests/grow_pool/ |
| D | grow_pool_001_pos.ksh | 64 log_must $ZFS set compression=off $TESTPOOL/$TESTFS
86 log_must $ZFS inherit compression $TESTPOOL/$TESTFS
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| /freebsd-12-stable/contrib/file/ |
| D | configure.ac | 39 [AS_HELP_STRING([--disable-zlib], [disable zlib compression support @<:@default=auto@:>@])])
44 [AS_HELP_STRING([--disable-bzlib], [disable bz2lib compression support @<:@default=auto@:>@])])
49 [AS_HELP_STRING([--disable-xzlib], [disable liblzma/xz compression support @<:@default=auto@:>@])])
200 AC_DEFINE([ZLIBSUPPORT], 1, [Enable zlib compression support])
208 AC_DEFINE([BZLIBSUPPORT], 1, [Enable bzlib compression support])
216 AC_DEFINE([XZLIBSUPPORT], 1, [Enable xzlib compression support])
|