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/freebsd/sys/contrib/openzfs/tests/zfs-tests/tests/functional/history/
H A Dhistory_002_pos.ksh74 mountpoint none compression lz4
75 compression on compression off
76 compression lzjb acltype off
88 compression gzip compression gzip-$((RANDOM%9 + 1))
89 compression zstd compression zstd-$((RANDOM%9 + 1))
90 compression zstd-fast copies $((RANDOM%3 + 1))
91 compression zstd-fast-$((RANDOM%9 + 1)) xattr sa
103 compression on compression off
104 compression lzjb aclmode discard
116 compression gzip compression gzip-$((RANDOM%9 + 1))
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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/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.
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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H A DCOMP_CTX_new.pod53 These functions provide compression support for OpenSSL. Compression is used within
54 the OpenSSL library to support TLS record and certificate compression.
74 will be available even if their corresponding compression algorithm is not configured
81 COMP_zlib() returns a B<COMP_METHOD> for stream-based ZLIB compression.
85 COMP_zlib_oneshot() returns a B<COMP_METHOD> for one-shot ZLIB compression.
89 COMP_brotli() returns a B<COMP_METHOD> for stream-based Brotli compression.
93 COMP_brotli_oneshot() returns a B<COMP_METHOD> for one-shot Brotli compression.
97 COMP_zstd() returns a B<COMP_METHOD> for stream-based Zstandard compression.
101 COMP_zstd_oneshot() returns a B<COMP_METHOD> for one-shot Zstandard compression.
114 compression and expansion.
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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/contrib/llvm-project/llvm/lib/Support/
H A DCompression.cpp28 using namespace llvm::compression;
30 const char *compression::getReasonIfUnsupported(compression::Format F) { in getReasonIfUnsupported()
32 case compression::Format::Zlib: in getReasonIfUnsupported()
37 case compression::Format::Zstd: in getReasonIfUnsupported()
46 void compression::compress(Params P, ArrayRef<uint8_t> Input, in compress()
49 case compression::Format::Zlib: in compress()
52 case compression::Format::Zstd: in compress()
58 Error compression::decompress(DebugCompressionType T, ArrayRef<uint8_t> Input, in decompress()
61 case compression::Format::Zlib: in decompress()
63 case compression::Format::Zstd: in decompress()
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/freebsd/sys/contrib/zstd/programs/
H A Dzstd.1.md18 `zstd` is a fast lossless compression algorithm and data compression tool,
21 `zstd` offers highly configurable compression speed,
23 to strong modes with excellent compression ratios.
25 which remains roughly stable at all compression settings.
95 Benchmark file(s) using compression level _#_.
109 selects `#` compression level \[1-19\] (default: 3).
110 …Higher compression levels *generally* produce higher compression ratio at the expense of speed and…
111 A rough rule of thumb is that compression speed is expected to be divided by 2 every 2 levels.
115 unlocks high compression levels 20+ (maximum 22), using a lot more memory.
118 switch to ultra-fast compression levels.
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H A DREADME.md72 - __ZSTD_NOCOMPRESS__ : `zstd` cli will be compiled without support for compression.
111 which can be loaded before compression and decompression.
113 Using a dictionary, the compression ratio achievable on small data improves dramatically.
114 These compression gains are achieved while simultaneously providing faster compression and decompre…
117 Dictionary gains are mostly effective in the first few KB. Then, the compression algorithm
128 CLI includes in-memory compression benchmark module for zstd.
135 The benchmark measures ratio, compressed size, compression and decompression speed.
136 One can select compression levels starting from `-b` and ending with `-e`.
140 such as number of threads (`-T#`), or advanced parameters (`--zstd=#`), or dictionary compression (…
141 and many others available on command for regular compression and decompression.
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/freebsd/contrib/libarchive/tar/
H A Dbsdtar.c142 int compression, compression2; in main() local
161 compression = compression2 = '\0'; in main()
408 if (compression != '\0') in main()
411 compression); in main()
412 compression = opt; in main()
459 if (compression != '\0') in main()
462 compression); in main()
463 compression = opt; in main()
467 if (compression != '\0') in main()
470 compression); in main()
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/freebsd/sys/modules/qat/qat_api/
H A DMakefile8 SRCS+= common/compression/dc_datapath.c
9 SRCS+= common/compression/dc_header_footer.c
10 SRCS+= common/compression/dc_session.c
11 SRCS+= common/compression/dc_stats.c
12 SRCS+= common/compression/dc_buffers.c
13 SRCS+= common/compression/dc_dp.c
14 SRCS+= common/compression/icp_sal_dc_err.c
15 SRCS+= common/compression/dc_chain.c
16 SRCS+= common/compression/dc_ns_datapath.c
17 SRCS+= common/compression/dc_ns_header_footer.c
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/freebsd/tests/sys/cddl/zfs/tests/history/
H A Dhistory_003_pos.ksh65 $ZFS set compression=off $TESTPOOL/$TESTFS
66 $ZFS set compression=on $TESTPOOL/$TESTFS
67 $ZFS set compression=off $TESTPOOL/$TESTFS
68 $ZFS set compression=on $TESTPOOL/$TESTFS
69 $ZFS set compression=off $TESTPOOL/$TESTFS
/freebsd/sys/contrib/zstd/
H A DCHANGELOG2 fix: compression bug in 32-bit mode associated with long-lasting sessions
5 perf: substantial compression speed improvements (up to +30%) on small data, by @TocarIP (#4144) an…
6 perf: improved compression speed (~+5%) for dictionary compression at low levels (#4170)
7 perf: much faster speed for `--patch-from` at high compression levels (#4276)
8 perf: higher `--patch-from` compression ratios, notably at high levels (#4288)
10 perf: slight compression ratio improvement thanks to better block boundaries (#4136, #4176, #4178)
11 perf: slight compression ratio improvement for `dfast`, aka levels 3 and 4 (#4171)
31 perf: improved compression of arrays of integers at high compression, by @Cyan4973
65 fix: fix rare corruption bug affecting the high compression mode, reported by @danlark1 (#3517, @te…
66 perf: improve mid-level compression speed (#3529, #3533, #3543, @yoniko and #3552, @terrelln)
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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.
31 For reference, several fast compression algorithms were tested and compared
36 on the [Silesia compression corpus].
39 [Silesia compression corpus]: https://sun.aei.polsl.pl//~sdeor/index.php?page=silesia
58 The negative compression levels, specified with `--fast=#`,
59 offer faster compression and decompression speed
60 at the cost of compression ratio.
62 Zstd can also offer stronger compression ratios at the cost of compression speed.
65 a property shared by most LZ compression algorithms, such as [zlib] or lzma.
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/freebsd/sys/contrib/openzfs/tests/zfs-tests/tests/functional/zoned_uid/
H A Dzoned_uid_012_pos.ksh57 userprop,compression
63 log_must zfs set compression=lz4 "$TESTPOOL/$TESTFS/deleg_root/child"
66 actual_comp=$(zfs get -H -o value compression "$TESTPOOL/$TESTFS/deleg_root/child")
84 inherit compression "$TESTPOOL/$TESTFS/deleg_root/child" 2>&1)
93 actual_comp=$(zfs get -H -o value compression "$TESTPOOL/$TESTFS/deleg_root/child")
95 comp_source=$(zfs get -H -o source compression "$TESTPOOL/$TESTFS/deleg_root/child")
/freebsd/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zfs_create/
H A Dzfs_create_verbose.ksh143 expect=([compression]=on)
144 dry_create_parseable expect -o compression=on "$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/contrib/libarchive/libarchive/
H A Darchive_write_add_filter_lrzip.c45 enum { lzma = 0, bzip2, gzip, lzo, none, zpaq } compression; member
106 data->compression = bzip2; in archive_write_lrzip_options()
108 data->compression = gzip; in archive_write_lrzip_options()
110 data->compression = lzo; in archive_write_lrzip_options()
112 data->compression = none; in archive_write_lrzip_options()
114 data->compression = zpaq; in archive_write_lrzip_options()
148 switch (data->compression) { in archive_write_lrzip_open()
/freebsd/contrib/file/magic/Magdir/
H A Dgentoo76 # determine the compression used by looking at the second member name
78 >>>>>&0 string gz\0 using gzip compression
79 >>>>>&0 string bz2\0 using bzip2 compression
80 >>>>>&0 string lz\0 using lzip compression
81 >>>>>&0 string lz4\0 using lz4 compression
82 >>>>>&0 string lzo\0 using lzo compression
83 >>>>>&0 string xz\0 using xz compression
84 >>>>>&0 string zst\0 using zstd compression
/freebsd/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:
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/contrib/libarchive/libarchive/test/
H A Dtest_read_truncated_filter.c35 test_truncation(const char *compression, in test_truncation() argument
68 compression); in test_truncation()
83 snprintf(path, sizeof(path), "%s%d", compression, i); in test_truncation()
121 compression); in test_truncation()
125 snprintf(path, sizeof(path), "%s%d", compression, i); in test_truncation()
129 compression); in test_truncation()
/freebsd/sys/cddl/boot/zfs/
H A DREADME7 gzip.c compression support
8 lz4.c compression support
9 lzjb.c compression support
11 zfssubr.c checksum, compression and raidz support
/freebsd/contrib/libarchive/
H A DREADME.md94 * 7-Zip archives (including archives that use zstandard compression)
105 * gzip compression
106 * bzip2 compression
107 * compress/LZW compression
108 * lzma, lzip, and xz compression
109 * lz4 compression
110 * lzop compression
111 * zstandard compression
131 * 7-Zip archives (including archives that use zstandard compression)
139 * gzip compression
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/freebsd/contrib/llvm-project/llvm/lib/Object/
H A DOffloadBundle.cpp304 llvm::compression::Format CompressionFormat; in decompress()
306 static_cast<uint16_t>(llvm::compression::Format::Zlib)) in decompress()
307 CompressionFormat = llvm::compression::Format::Zlib; in decompress()
309 static_cast<uint16_t>(llvm::compression::Format::Zstd)) in decompress()
310 CompressionFormat = llvm::compression::Format::Zstd; in decompress()
322 if (llvm::Error DecompressionError = llvm::compression::decompress( in decompress()
358 << (CompressionFormat == llvm::compression::Format::Zlib in decompress()
383 CompressedOffloadBundle::compress(llvm::compression::Params P, in compress()
386 if (!llvm::compression::zstd::isAvailable() && in compress()
387 !llvm::compression::zlib::isAvailable()) in compress()
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/freebsd/sys/contrib/openzfs/tests/zfs-tests/tests/functional/pool_checkpoint/
H A Dpool_checkpoint.kshlib210 log_must zfs create -o compression=lz4 -o recordsize=8k $FS0
211 log_must zfs create -o compression=lz4 -o recordsize=8k $FS1
219 log_must zfs create -o compression=lz4 -o recordsize=8k $NESTEDFS0
220 log_must zfs create -o compression=lz4 -o recordsize=8k $NESTEDFS1
275 log_must zfs create -o compression=lz4 -o recordsize=8k $FS2
284 log_must zfs create -o compression=lz4 -o recordsize=8k $NESTEDFS2
324 log_must zfs create -o compression=lz4 -o recordsize=8k $NESTEDFS2
/freebsd/tests/sys/cddl/zfs/tests/rootpool/
H A Drootpool_007_neg.ksh57 log_must $ZFS set compression=$orig_compress $rootfs
65 typeset orig_compress=$(get_prop compression $rootfs)
75 log_mustnot $ZFS set compression=${gtype[i]} $rootfs
/freebsd/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rootpool/
H A Drootpool_007_pos.ksh50 log_must zfs set compression=$orig_compress $rootfs
61 typeset orig_compress=$(get_prop compression $rootfs)
68 log_must zfs set compression=${gtype[i]} $rootfs

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