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/freebsd-13.1/sys/contrib/openzfs/tests/zfs-tests/tests/functional/history/
H A Dhistory_002_pos.ksh73 mountpoint none compression lz4
74 compression on compression off
75 compression lzjb acltype off
87 compression gzip compression gzip-$((RANDOM%9 + 1))
88 compression zstd compression zstd-$((RANDOM%9 + 1))
102 compression on compression off
103 compression lzjb aclmode discard
115 compression gzip compression gzip-$((RANDOM%9 + 1))
116 compression zstd compression zstd-$((RANDOM%9 + 1))
130 compression on compression off
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H A Dhistory_003_pos.ksh71 zfs set compression=off $spool/$sfs
72 zfs set compression=on $spool/$sfs
73 zfs set compression=off $spool/$sfs
74 zfs set compression=on $spool/$sfs
75 zfs set compression=off $spool/$sfs
/freebsd-13.1/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
/freebsd-13.1/sys/contrib/zstd/programs/
H A Dzstd.1.md18 `zstd` is a fast lossless compression algorithm and data compression tool,
121 Does not spawn a thread for compression, use a single thread for both I/O and compression.
166 compression ratio, and the faster compression levels will see a small
167 compression speed hit.
275 They set the compression level and number of threads to use during compression, respectively.
287 `-#` for compression level and `-T#` for number of compression threads.
428 advanced compression options.
446 improves compression ratio.
468 compression.
479 compression ratio but decreases compression speed.
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H A DREADME.md111 which can be loaded before compression and decompression.
114 These compression gains are achieved while simultaneously providing faster compression and decompre…
128 CLI includes in-memory compression benchmark module for zstd.
148 -# : # compression level (1-19, default: 3)
170 Advanced compression arguments :
224 that `zstd` will use for compression, which by default is `1`.
233 `-#` for compression level and `-T#` for number of threads.
247 Below are graphs comparing the compression speed, compression ratio, and
268 on compression speed, and the decompression speed doubles.
272 compression speed (for lower levels) with minimal change in compression ratio.
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/freebsd-13.1/contrib/libarchive/tar/
H A Dbsdtar.c389 compression); in main()
390 compression = opt; in main()
441 compression); in main()
442 compression = opt; in main()
449 compression); in main()
450 compression = opt; in main()
475 compression); in main()
476 compression = opt; in main()
772 compression); in main()
773 compression = opt; in main()
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/freebsd-13.1/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
/freebsd-13.1/sys/contrib/zstd/examples/
H A DREADME.md4 - [Simple compression](simple_compression.c) :
10 Only compatible with simple compression.
14 - [Multiple simple compression](multiple_simple_compression.c) :
24 - [Streaming compression](streaming_compression.c) :
28 - [Multiple Streaming compression](multiple_streaming_compression.c) :
35 Compatible with both simple and streaming compression.
39 - [Dictionary compression](dictionary_compression.c) :
/freebsd-13.1/sys/contrib/zstd/
H A DCHANGELOG7 perf: faster dictionary compression at medium compression levels, by @felixhandte
134 perf: Faster compression speed in high compression mode for repetitive data by @terrelln (#1635)
195 perf: slightly better compression ratio at high compression modes
262 api : ZSTDMT can accept new compression parameters during compression
315 new : contrib/adaptive-compression, I/O driven compression strength, by Paul Cruz (@paulcruz74)
472 New : compression format specification
541 fix : fast compression mode on Windows
583 Small compression ratio improvement
589 Small compression ratio improvement
592 HC mode : compression levels 2-26
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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.
33 For reference, several fast compression algorithms were tested and compared
38 on the [Silesia compression corpus].
62 The negative compression levels, specified with `--fast=#`,
64 compression ratio compared to level 1, as seen in the table above.
66 Zstd can also offer stronger compression ratios at the cost of compression speed.
76 on the [Silesia compression corpus].
86 ## The case for Small Data compression
104 These compression gains are achieved while simultaneously providing _faster_ compression and decomp…
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/freebsd-13.1/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zfs_create/
H A Dzfs_create_verbose.ksh143 expect=([compression]=on)
144 dry_create_parseable expect -o compression=on "$TESTPOOL/$TESTFS1"
147 expect=([compression]=on)
148 dry_create_parseable expect -p -o compression=on "$TESTPOOL/$TESTFS1"
149 expect=([compression]=on)
150 dry_create_parseable expect -p -o compression=on "$TESTPOOL/$TESTFS1/$TESTVOL"
/freebsd-13.1/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-13.1/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()
122 compression); in test_truncation()
126 sprintf(path, "%s%d", compression, i); in test_truncation()
130 compression); in test_truncation()
/freebsd-13.1/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-13.1/contrib/libarchive/
H A DREADME.md97 * gzip compression
98 * bzip2 compression
99 * compress/LZW compression
101 * lz4 compression
102 * lzop compression
103 * zstandard compression
126 * gzip compression
127 * bzip2 compression
130 * lz4 compression
131 * lzop compression
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/freebsd-13.1/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-13.1/sys/contrib/openzfs/tests/zfs-tests/tests/functional/pool_checkpoint/
H A Dpool_checkpoint.kshlib208 log_must zfs create -o compression=lz4 -o recordsize=8k $FS0
209 log_must zfs create -o compression=lz4 -o recordsize=8k $FS1
217 log_must zfs create -o compression=lz4 -o recordsize=8k $NESTEDFS0
218 log_must zfs create -o compression=lz4 -o recordsize=8k $NESTEDFS1
273 log_must zfs create -o compression=lz4 -o recordsize=8k $FS2
282 log_must zfs create -o compression=lz4 -o recordsize=8k $NESTEDFS2
322 log_must zfs create -o compression=lz4 -o recordsize=8k $NESTEDFS2
/freebsd-13.1/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rootpool/
H A Drootpool_007_pos.ksh49 log_must zfs set compression=$orig_compress $rootfs
60 typeset orig_compress=$(get_prop compression $rootfs)
67 log_must zfs set compression=${gtype[i]} $rootfs
/freebsd-13.1/sys/contrib/openzfs/tests/zfs-tests/tests/functional/compression/
H A Dcompress_001_pos.ksh30 . $STF_SUITE/tests/functional/compression/compress.cfg
49 log_must zfs set compression=off $TESTPOOL/$TESTFS
56 log_must zfs set compression=on $TESTPOOL/$TESTFS
H A Dcompress_002_pos.ksh33 . $STF_SUITE/tests/functional/compression/compress.cfg
54 log_must zfs set compression=off $TESTPOOL/$TESTCTR
61 log_must zfs set compression=on $TESTPOOL/$TESTCTR
/freebsd-13.1/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-13.1/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
/freebsd-13.1/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-13.1/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

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