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Searched refs:compression (Results 1 – 25 of 183) sorted by relevance

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/freebsd-12.1/crypto/openssl/doc/man3/
H A DSSL_COMP_add_compression_method.pod7 - 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.
55 restrict the list of compression method on a per connection basis.
58 its own compression methods and will unconditionally activate compression
60 of compression methods supported on a per connection basis.
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H A DSSL_SESSION_get_compress_id.pod6 - 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
H A DCMS_compress.pod16 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
/freebsd-12.1/sys/contrib/zstd/programs/
H A Dzstd.1.md18 `zstd` is a fast lossless compression algorithm and data compression tool,
122 at the cost of some compression ratio.
187 `zstd` offers _dictionary_ compression,
288 advanced compression options.
305 improves compression ratio.
325 improves compression ratio.
327 compression.
337 compression ratio but decreases compression speed.
355 but decreases compression speed.
360 but decreases compression ratio.
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H A DREADME.md86 which can be loaded before compression and decompression.
89 These compression gains are achieved while simultaneously providing faster compression and decompre…
103 CLI includes in-memory compression benchmark module for zstd.
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)
160 -b# : benchmark file(s), using # compression level (default: 3)
161 -e# : test all compression levels from -bX to # (default: 1)
179 Below are graphs comparing the compression speed, compression ratio, and
200 on compression speed, and the decompression speed doubles.
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/freebsd-12.1/contrib/libarchive/tar/
H A Dbsdtar.c380 compression); in main()
381 compression = opt; in main()
432 compression); in main()
433 compression = opt; in main()
440 compression); in main()
441 compression = opt; in main()
466 compression); in main()
467 compression = opt; in main()
749 compression); in main()
750 compression = opt; in main()
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/freebsd-12.1/sys/contrib/zstd/
H A DREADME.md3 __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].
68 ### The case for Small Data compression
86 These compression gains are achieved while simultaneously providing _faster_ compression and decomp…
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H A DNEWS4 perf: better compression at levels 13-15
12 api : ZSTDMT can accept new compression parameters during compression
65 new : contrib/adaptive-compression, I/O driven compression strength, by Paul Cruz (@paulcruz74)
222 New : compression format specification
283 Improved : better compression of small data
291 fix : fast compression mode on Windows
327 minor generic compression improvements
333 Small compression ratio improvement
339 Small compression ratio improvement
342 HC mode : compression levels 2-26
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/freebsd-12.1/tests/sys/cddl/zfs/tests/history/
H A Dhistory_003_pos.ksh70 $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
H A Dhistory_002_pos.ksh92 compression on compression off \
93 compression lzjb aclmode discard \
103 compression gzip compression gzip-$((RANDOM%9 + 1)) \
/freebsd-12.1/contrib/libarchive/libarchive/
H A Darchive_write_add_filter_lrzip.c47 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()
/freebsd-12.1/sys/contrib/zstd/zlibWrapper/
H A DREADME.md34 #### Enabling zstd compression within your project
37 Your project should work as before with zlib. There are two options to enable zstd compression:
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:
108 …rence we made experiments using `zwrapbench -ri6b6` with zstd and zlib compression (both at level …
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/freebsd-12.1/contrib/libarchive/libarchive/test/
H A Dtest_read_truncated_filter.c36 test_truncation(const char *compression, in test_truncation() argument
69 compression); in test_truncation()
84 sprintf(path, "%s%d", compression, i); in test_truncation()
119 compression); in test_truncation()
123 sprintf(path, "%s%d", compression, i); in test_truncation()
127 compression); in test_truncation()
/freebsd-12.1/contrib/libarchive/
H A DREADME.md96 * gzip compression
97 * bzip2 compression
98 * compress/LZW compression
100 * lz4 compression
101 * lzop compression
102 * zstandard compression
123 * gzip compression
124 * bzip2 compression
127 * lz4 compression
128 * lzop compression
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/freebsd-12.1/tests/sys/cddl/zfs/tests/rootpool/
H A Drootpool_007_neg.ksh63 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
/freebsd-12.1/sbin/hastd/
H A Dhast_compression.c209 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()
/freebsd-12.1/sys/contrib/xz-embedded/linux/Documentation/
H A Dxz.txt2 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
/freebsd-12.1/contrib/file/magic/Magdir/
H A Dllvm9 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
H A Dcompress3 # compress: file(1) magic for pure-compression formats (no archives)
21 # * Produce shorter output - notably, only report compression methods
36 >8 byte 2 \b, max compression
170 >4 belong 0x09090909 fast compression
171 >4 belong 0x090A0A0A mediocre compression
172 >4 belong 0x090A0B0B good compression
173 >4 belong 0x090A0C0C very good compression
174 >4 belong 0x090A0C0D best compression
310 # BWC compression
314 # UCL compression
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/freebsd-12.1/sys/cddl/boot/zfs/
H A DREADME8 lz4.c compression support
9 lzjb.c compression support
11 zfssubr.c checksum, compression and raidz support
/freebsd-12.1/contrib/xz/
H A DTODO11 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
/freebsd-12.1/sys/contrib/zstd/contrib/pzstd/
H A DREADME.md4 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…
/freebsd-12.1/sys/contrib/zstd/lib/
H A Dlibzstd.pc.in1 # ZSTD - standard compression algorithm
10 Description: fast lossless compression algorithm library
/freebsd-12.1/tests/sys/cddl/zfs/tests/grow_pool/
H A Dgrow_pool_001_pos.ksh64 log_must $ZFS set compression=off $TESTPOOL/$TESTFS
86 log_must $ZFS inherit compression $TESTPOOL/$TESTFS
/freebsd-12.1/tests/sys/cddl/zfs/tests/bootfs/
H A Dbootfs_008_neg.ksh90 log_must $ZFS set compression=${gtype[i]} $COMP_FS
92 log_must $ZFS set compression=off $COMP_FS

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