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[PATCH v7 0/5] add compression algorithm zBeWalgo




This patch series adds a new compression algorithm to the kernel and to
the crypto api.

Changes since v6:
- Fixed git apply error due to other recently applied patches

Changes since v5:
- Fixed compile-error due to variable definitions inside #ifdef CONFIG_ZRAM_WRITEBACK

Changes since v4:
- Fix mismatching function-prototypes
- Fix mismatching License errors
- Add static to global vars
- Add ULL to long constants

Changes since v3:
- Split patch into patchset
- Add Zstd = Zstandard to the list of benchmarked algorithms
- Added configurable compression levels to crypto-api
- Added multiple compression levels to the benchmarks below
- Added unsafe decompressor functions to crypto-api
- Added flag to mark unstable algorithms to crypto-api
- Test the code using afl-fuzz -> and fix the code
- Added 2 new Benchmark datasets
- checkpatch.pl fixes

Changes since v2:
- added linux-kernel Mailinglist

Changes since v1:
- improved documentation
- improved code style
- replaced numerous casts with get_unaligned*
- added tests in crypto/testmgr.h/c
- added zBeWalgo to the list of algorithms shown by 
/sys/block/zram0/comp_algorithm


Currently ZRAM uses compression-algorithms from the crypto-api. ZRAM
compresses each page individually. As a result the compression algorithm is
forced to use a very small sliding window. None of the available compression
algorithms is designed to achieve high compression ratios with small inputs.

This patch-set adds a new compression algorithm 'zBeWalgo' to the crypto api.
This algorithm focusses on increasing the capacity of the compressed
block-device created by ZRAM. The choice of compression algorithms is always
a tradeoff between speed and compression ratio.

If faster algorithms like 'lz4' are chosen the compression ratio is often
lower than the ratio of zBeWalgo as shown in the following benchmarks. Due to
the lower compression ratio, ZRAM needs to fall back to backing_devices
mode often. If backing_devices are required, the effective speed of ZRAM is a
weighted average of de/compression time and writing/reading from the
backing_device. This should be considered when comparing the speeds in the
benchmarks.

There are different kinds of backing_devices, each with its own drawbacks.
1. HDDs: This kind of backing device is very slow. If the compression ratio
of an algorithm is much lower than the ratio of zBeWalgo, it might be faster
to use zBewalgo instead.
2. SSDs: I tested a swap partition on my NVME-SSD. The speed is even higher
than zram with lz4, but after about 5 Minutes the SSD is blocking all
read/write requests due to overheating. This is definitly not an option.


Benchmarks:


To obtain reproducable benchmarks, the datasets were first loaded into a
userspace-program. Than the data is written directly to a clean
zram-partition without any filesystem. Between writing and reading 'sync'
and 'echo 3 > /proc/sys/vm/drop_caches' is called. All time measurements are
wall clock times, and the benchmarks are using only one cpu-core at a time.
The new algorithm is compared to all available compression algorithms from
the crypto-api.

Before loading the datasets to user-space deduplication is applied, since
none Algorithm has deduplication. Duplicated pages are removed to
prevent an algorithm to obtain high/low ratios, just because a single page can
be compressed very well - or not.

All Algorithms marked with '*' are using unsafe decompression.

All Read and Write Speed Measurements are given in MBit/s

zbewalgo' uses per dataset specialized different combinations. These can be
specified at runtime via /sys/kernel/zbewalgo/combinations.


- '/dev/zero' This dataset is used to measure the speed limitations
for ZRAM. ZRAM filters zero-data internally and does not even call the
specified compression algorithm.

Algorithm       write    read
--zram--      2724.08 2828.87


- 'ecoham' This dataset is one of the input files for the scientific
application ECOHAM which runs an ocean simulation. This dataset contains a
lot of zeros - even after deduplication. Where the data is not zero there are
arrays of floating point values, adjacent float values are likely to be
similar to each other, allowing for high compression ratios.

zbewalgo reaches very high compression ratios and is a lot faster than other
algorithms with similar compression ratios.

Algorithm    ratio    write     read
--hdd--       1.00   134.70   156.62
lz4*_10       6.73  1303.12  1547.17
lz4_10        6.73  1303.12  1574.51
lzo           6.88  1205.98  1468.09
lz4*_05       7.00  1291.81  1642.41
lz4_05        7.00  1291.81  1682.81
lz4_07        7.13  1250.29  1593.89
lz4*_07       7.13  1250.29  1677.08
lz4_06        7.16  1307.62  1666.66
lz4*_06       7.16  1307.62  1669.42
lz4_03        7.21  1250.87  1449.48
lz4*_03       7.21  1250.87  1621.97
lz4*_04       7.23  1281.62  1645.56
lz4_04        7.23  1281.62  1666.81
lz4_02        7.33  1267.54  1523.11
lz4*_02       7.33  1267.54  1576.54
lz4_09        7.36  1140.55  1510.01
lz4*_09       7.36  1140.55  1692.38
lz4*_01       7.36  1215.40  1575.38
lz4_01        7.36  1215.40  1676.65
lz4_08        7.36  1242.73  1544.07
lz4*_08       7.36  1242.73  1692.92
lz4hc_01      7.51   235.85  1545.61
lz4hc*_01     7.51   235.85  1678.00
lz4hc_02      7.62   226.30  1697.42
lz4hc*_02     7.62   226.30  1738.79
lz4hc*_03     7.71   194.64  1711.58
lz4hc_03      7.71   194.64  1713.59
lz4hc*_04     7.76   177.17  1642.39
lz4hc_04      7.76   177.17  1698.36
deflate_1     7.80    84.71   584.89
lz4hc*_05     7.81   149.11  1558.43
lz4hc_05      7.81   149.11  1686.71
deflate_2     7.82    82.83   599.38
deflate_3     7.86    84.27   616.05
lz4hc_06      7.88   106.61  1680.52
lz4hc*_06     7.88   106.61  1739.78
zstd_07       7.92   230.34  1016.91
zstd_05       7.92   252.71  1070.46
zstd_06       7.93   237.84  1062.11
lz4hc*_07     7.94    75.22  1751.91
lz4hc_07      7.94    75.22  1768.98
zstd_04       7.94   403.21  1080.62
zstd_03       7.94   411.91  1077.26
zstd_01       7.94   455.89  1082.54
zstd_09       7.94   456.81  1079.22
zstd_08       7.94   459.54  1082.07
zstd_02       7.94   465.82  1056.67
zstd_11       7.95   150.15  1070.31
zstd_10       7.95   169.95  1107.86
lz4hc_08      7.98    49.53  1611.61
lz4hc*_08     7.98    49.53  1793.68
lz4hc_09      7.98    49.62  1629.63
lz4hc*_09     7.98    49.62  1639.83
lz4hc*_10     7.99    37.96  1742.65
lz4hc_10      7.99    37.96  1790.08
zbewalgo      8.02    38.58   237.92
zbewalgo*     8.02    38.58   239.10
842           8.05   169.90   597.01
zstd_13       8.06   129.78  1131.66
zstd_12       8.06   135.50  1126.59
deflate_4     8.16    71.14   546.52
deflate_5     8.17    70.86   537.05
zstd_17       8.19    61.46  1061.45
zstd_14       8.20   124.43  1133.68
zstd_18       8.21    56.82  1151.25
zstd_19       8.22    51.51  1161.83
zstd_20       8.24    44.26  1108.36
zstd_16       8.25    76.26  1042.82
zstd_15       8.25    86.65  1181.98
deflate_6     8.28    66.45   619.62
deflate_7     8.30    63.83   631.13
zstd_21       8.41     6.73  1177.38
zstd_22       8.46     2.23  1188.39
deflate_9     8.47    44.16   678.43
deflate_8     8.47    48.00   677.50
zbewalgo'     8.80   634.68  1247.56
zbewalgo'*    8.80   634.68  1429.42


- 'source-code' This dataset is a tarball of the source-code from a
linux-kernel.

zBeWalgo is very bad in compressing text based datasets.


Algorithm    ratio   write     read
--hdd--       1.00  134.70   156.62
lz4_10        1.49  584.41  1200.01
lz4*_10       1.49  584.41  1251.79
lz4*_07       1.64  559.05  1160.75
lz4_07        1.64  559.05  1160.97
842           1.65   63.66   158.53
lz4_06        1.71  513.03  1068.18
lz4*_06       1.71  513.03  1162.68
lz4_05        1.78  526.31  1136.51
lz4*_05       1.78  526.31  1144.81
lz4*_04       1.87  506.63  1106.31
lz4_04        1.87  506.63  1132.96
zbewalgo      1.89   27.56    35.04
zbewalgo*     1.89   27.56    36.20
zbewalgo'     1.89   46.62    34.75
zbewalgo'*    1.89   46.62    36.34
lz4_03        1.98  485.91   984.92
lz4*_03       1.98  485.91  1125.68
lz4_02        2.07  454.96  1061.05
lz4*_02       2.07  454.96  1133.42
lz4_01        2.17  441.11  1141.52
lz4*_01       2.17  441.11  1146.26
lz4*_08       2.17  446.45  1103.61
lz4_08        2.17  446.45  1163.91
lz4*_09       2.17  453.21  1071.91
lz4_09        2.17  453.21  1155.43
lzo           2.27  430.27   871.87
lz4hc*_01     2.35  137.71  1089.94
lz4hc_01      2.35  137.71  1200.45
lz4hc_02      2.38  139.18  1117.44
lz4hc*_02     2.38  139.18  1210.58
lz4hc_03      2.39  127.09  1097.90
lz4hc*_03     2.39  127.09  1214.22
lz4hc_10      2.40   96.26  1203.89
lz4hc*_10     2.40   96.26  1221.94
lz4hc*_08     2.40   98.80  1191.79
lz4hc_08      2.40   98.80  1226.59
lz4hc*_09     2.40  102.36  1213.34
lz4hc_09      2.40  102.36  1225.45
lz4hc*_07     2.40  113.81  1217.63
lz4hc_07      2.40  113.81  1218.49
lz4hc*_06     2.40  117.32  1214.13
lz4hc_06      2.40  117.32  1224.51
lz4hc_05      2.40  122.12  1108.34
lz4hc*_05     2.40  122.12  1214.97
lz4hc*_04     2.40  124.91  1093.58
lz4hc_04      2.40  124.91  1222.05
zstd_01       2.93  200.01   401.15
zstd_08       2.93  200.01   414.52
zstd_09       2.93  200.26   394.83
zstd_02       3.00  201.12   405.73
deflate_1     3.01   53.83   240.64
deflate_2     3.05   52.58   243.31
deflate_3     3.08   52.07   244.84
zstd_04       3.10  158.80   365.06
zstd_03       3.10  169.56   405.92
zstd_05       3.18  125.00   410.23
zstd_06       3.20  106.50   404.81
zstd_07       3.21   99.02   404.23
zstd_15       3.22   24.95   376.58
zstd_16       3.22   26.88   416.44
deflate_4     3.22   45.26   225.56
zstd_13       3.22   62.53   388.33
zstd_14       3.22   64.15   391.81
zstd_12       3.22   66.24   417.67
zstd_11       3.22   66.44   404.31
zstd_10       3.22   73.13   401.98
zstd_17       3.24   14.66   412.00
zstd_18       3.25   13.37   408.46
deflate_5     3.26   43.54   252.18
deflate_7     3.27   39.37   245.63
deflate_6     3.27   42.51   251.33
deflate_9     3.28   40.02   253.99
deflate_8     3.28   40.10   253.98
zstd_19       3.34   10.36   399.85
zstd_22       3.35    4.88   353.63
zstd_21       3.35    6.02   323.33
zstd_20       3.35    8.34   339.81


- 'hpcg' This dataset is a (partial) memory-snapshot of the
running hpcg-benchmark. At the time of the snapshot, that application
performed a sparse matrix - vector multiplication.

The compression ratio of zBeWalgo on this dataset is nearly 3 times higher
than the ratio of any other algorithm regardless of the compression-level
specified.

Algorithm     ratio    write     read
--hdd--        1.00   134.70   156.62
lz4*_10        1.00  1130.73  2131.82
lz4_10         1.00  1130.73  2181.60
lz4_06         1.34   625.48  1145.74
lz4*_06        1.34   625.48  1145.90
lz4_07         1.57   515.39   895.42
lz4*_07        1.57   515.39  1062.53
lz4*_05        1.72   539.40  1030.76
lz4_05         1.72   539.40  1038.86
lzo            1.76   475.20   805.41
lz4_08         1.76   480.35   939.16
lz4*_08        1.76   480.35  1015.04
lz4*_03        1.76   488.05   893.13
lz4_03         1.76   488.05  1013.65
lz4*_09        1.76   501.49  1032.69
lz4_09         1.76   501.49  1105.47
lz4*_01        1.76   501.54  1040.72
lz4_01         1.76   501.54  1102.22
lz4*_02        1.76   510.79  1014.78
lz4_02         1.76   510.79  1080.69
lz4_04         1.76   516.18  1047.06
lz4*_04        1.76   516.18  1049.55
842            2.35   109.68   192.50
lz4hc_07       2.36   152.57  1265.77
lz4hc*_07      2.36   152.57  1331.01
lz4hc*_06      2.36   155.78  1313.85
lz4hc_06       2.36   155.78  1346.52
lz4hc*_08      2.36   158.80  1297.16
lz4hc_08       2.36   158.80  1382.54
lz4hc*_10      2.36   159.84  1317.81
lz4hc_10       2.36   159.84  1346.85
lz4hc*_03      2.36   160.01  1162.91
lz4hc_03       2.36   160.01  1377.09
lz4hc*_09      2.36   161.02  1320.87
lz4hc_09       2.36   161.02  1374.39
lz4hc*_05      2.36   164.67  1324.40
lz4hc_05       2.36   164.67  1341.64
lz4hc*_04      2.36   168.11  1323.19
lz4hc_04       2.36   168.11  1377.56
lz4hc_01       2.36   168.40  1231.55
lz4hc*_01      2.36   168.40  1329.72
lz4hc*_02      2.36   170.74  1316.54
lz4hc_02       2.36   170.74  1337.42
deflate_3      3.52    46.51   336.67
deflate_2      3.52    62.05   343.03
deflate_1      3.52    65.68   359.96
deflate_4      4.01    61.01   432.66
deflate_8      4.61    41.51   408.29
deflate_5      4.61    44.09   434.79
deflate_9      4.61    45.14   417.18
deflate_7      4.61    45.22   440.27
deflate_6      4.61    46.01   440.39
zstd_09        5.95   277.11   542.93
zstd_08        5.95   277.40   541.27
zstd_01        5.95   277.41   540.61
zstd_16        5.97    32.05   465.03
zstd_15        5.97    39.12   515.07
zstd_13        5.97    70.90   511.94
zstd_14        5.97    72.20   522.68
zstd_11        5.97    74.14   512.18
zstd_12        5.97    74.27   497.95
zstd_10        5.97    86.98   519.78
zstd_07        5.97   135.16   504.07
zstd_06        5.97   145.49   505.10
zstd_05        6.02   177.86   510.08
zstd_04        6.02   205.13   516.29
zstd_03        6.02   217.82   515.50
zstd_02        6.02   260.97   484.64
zstd_18        6.27    12.10   490.72
zstd_17        6.27    12.33   462.65
zstd_21        6.70     9.25   391.16
zstd_20        6.70     9.50   395.38
zstd_22        6.70     9.74   390.99
zstd_19        6.70     9.99   450.42
zbewalgo      16.33    47.17   430.06
zbewalgo*     16.33    47.17   436.92
zbewalgo'     16.33   188.86   427.78
zbewalgo'*    16.33   188.86   437.43


- 'partdiff' (8 GiB) Array of double values. Adjacent doubles are similar, but
not equal. This array is produced by a partial differential equation solver
using a Jakobi-implementation.

zBewalgo gains higher compression ratios than all other algorithms.
Some algorithms are even slower than a hdd without any compression at all.

Algorithm    ratio    write     read
zstd_18       1.00    13.77  2080.06
zstd_17       1.00    13.80  2075.23
zstd_16       1.00    28.04  2138.99
zstd_15       1.00    45.04  2143.32
zstd_13       1.00    55.72  2128.27
zstd_14       1.00    56.09  2123.54
zstd_11       1.00    57.31  2095.04
zstd_12       1.00    57.53  2134.61
842           1.00    61.61  2267.89
zstd_10       1.00    80.40  2081.35
zstd_07       1.00   120.66  2119.09
zstd_06       1.00   128.80  2134.02
zstd_05       1.00   131.25  2133.01
--hdd--       1.00   134.70   156.62
lz4hc*_03     1.00   152.82  1982.94
lz4hc_03      1.00   152.82  2261.55
lz4hc*_07     1.00   159.43  1990.03
lz4hc_07      1.00   159.43  2269.05
lz4hc_10      1.00   166.33  2243.78
lz4hc*_10     1.00   166.33  2260.63
lz4hc_09      1.00   167.03  2244.20
lz4hc*_09     1.00   167.03  2264.72
lz4hc*_06     1.00   167.17  2245.15
lz4hc_06      1.00   167.17  2271.88
lz4hc_08      1.00   167.49  2237.79
lz4hc*_08     1.00   167.49  2283.98
lz4hc_02      1.00   167.51  2275.36
lz4hc*_02     1.00   167.51  2279.72
lz4hc*_05     1.00   167.52  2248.92
lz4hc_05      1.00   167.52  2273.99
lz4hc*_04     1.00   167.71  2268.23
lz4hc_04      1.00   167.71  2268.78
lz4hc*_01     1.00   167.91  2268.76
lz4hc_01      1.00   167.91  2269.16
zstd_04       1.00   175.84  2241.60
zstd_03       1.00   176.35  2285.13
zstd_02       1.00   195.41  2269.51
zstd_09       1.00   199.47  2271.91
zstd_01       1.00   199.74  2287.15
zstd_08       1.00   199.87  2286.27
lz4_01        1.00  1160.95  2257.78
lz4*_01       1.00  1160.95  2275.42
lz4_08        1.00  1164.37  2280.06
lz4*_08       1.00  1164.37  2280.43
lz4*_09       1.00  1166.30  2263.05
lz4_09        1.00  1166.30  2280.54
lz4*_03       1.00  1174.00  2074.96
lz4_03        1.00  1174.00  2257.37
lz4_02        1.00  1212.18  2273.60
lz4*_02       1.00  1212.18  2285.66
lz4*_04       1.00  1253.55  2259.60
lz4_04        1.00  1253.55  2287.15
lz4_05        1.00  1279.88  2282.47
lz4*_05       1.00  1279.88  2287.05
lz4_06        1.00  1292.22  2277.95
lz4*_06       1.00  1292.22  2284.84
lz4*_07       1.00  1303.58  2276.10
lz4_07        1.00  1303.58  2276.99
lz4*_10       1.00  1304.80  2183.30
lz4_10        1.00  1304.80  2285.25
lzo           1.00  1360.88  2281.19
deflate_7     1.07    33.51   463.73
deflate_2     1.07    33.99   473.07
deflate_9     1.07    34.05   473.57
deflate_6     1.07    34.06   473.69
deflate_8     1.07    34.12   472.86
deflate_5     1.07    34.22   468.03
deflate_4     1.07    34.32   447.33
deflate_1     1.07    35.45   431.95
deflate_3     1.07    35.63   472.56
zstd_22       1.11     9.81   668.64
zstd_21       1.11    10.71   734.52
zstd_20       1.11    10.78   714.86
zstd_19       1.11    12.02   790.71
zbewalgo      1.29    25.93   225.07
zbewalgo*     1.29    25.93   226.72
zbewalgo'*    1.31    23.54    84.29
zbewalgo'     1.31    23.54    86.08

- 'Isabella CLOUDf01'
This dataset is an array of floating point values between 0.00000 and 0.00332.
Detailed Information about this dataset is online available at
http://www.vets.ucar.edu/vg/isabeldata/readme.html

All algorithms obtain similar compression ratios. The compression ratio of
zBeWalgo is slightly higher, and the speed is higher too.

Algorithm    ratio    write     read
--hdd--       1.00   134.70   156.62
lzo           2.06  1022.09   916.22
lz4*_10       2.09  1126.03  1533.35
lz4_10        2.09  1126.03  1569.06
lz4*_07       2.09  1135.89  1444.21
lz4_07        2.09  1135.89  1581.96
lz4*_01       2.10   972.22  1405.21
lz4_01        2.10   972.22  1579.78
lz4*_09       2.10   982.39  1429.17
lz4_09        2.10   982.39  1490.27
lz4_08        2.10  1006.56  1491.14
lz4*_08       2.10  1006.56  1558.66
lz4_02        2.10  1019.82  1366.16
lz4*_02       2.10  1019.82  1578.79
lz4_03        2.10  1129.74  1417.33
lz4*_03       2.10  1129.74  1456.68
lz4_04        2.10  1131.28  1478.27
lz4*_04       2.10  1131.28  1517.84
lz4_06        2.10  1147.78  1424.90
lz4*_06       2.10  1147.78  1462.47
lz4*_05       2.10  1172.44  1434.86
lz4_05        2.10  1172.44  1578.80
lz4hc*_10     2.11    29.01  1498.01
lz4hc_10      2.11    29.01  1580.23
lz4hc*_09     2.11    56.30  1510.26
lz4hc_09      2.11    56.30  1583.11
lz4hc_08      2.11    56.39  1426.43
lz4hc*_08     2.11    56.39  1565.12
lz4hc_07      2.11   129.27  1540.38
lz4hc*_07     2.11   129.27  1578.35
lz4hc*_06     2.11   162.72  1456.27
lz4hc_06      2.11   162.72  1581.69
lz4hc*_05     2.11   183.78  1487.71
lz4hc_05      2.11   183.78  1589.10
lz4hc*_04     2.11   187.41  1431.35
lz4hc_04      2.11   187.41  1566.24
lz4hc*_03     2.11   190.21  1531.98
lz4hc_03      2.11   190.21  1580.81
lz4hc*_02     2.11   199.69  1432.00
lz4hc_02      2.11   199.69  1565.10
lz4hc_01      2.11   205.87  1540.33
lz4hc*_01     2.11   205.87  1567.68
842           2.15    89.89   414.49
deflate_1     2.29    48.84   352.09
deflate_2     2.29    49.47   353.77
deflate_3     2.30    50.00   345.88
zstd_22       2.31     5.59   658.59
zstd_21       2.31    14.34   664.02
zstd_20       2.31    21.22   665.77
zstd_19       2.31    24.26   587.99
zstd_17       2.31    26.24   670.14
zstd_18       2.31    26.47   668.64
deflate_9     2.31    33.79   345.81
deflate_8     2.31    34.67   347.96
deflate_4     2.31    41.46   326.50
deflate_7     2.31    42.56   346.99
deflate_6     2.31    43.51   343.56
deflate_5     2.31    45.83   343.86
zstd_05       2.31   126.01   571.70
zstd_04       2.31   178.39   597.26
zstd_03       2.31   192.04   644.24
zstd_01       2.31   206.31   563.68
zstd_08       2.31   207.39   669.05
zstd_02       2.31   216.98   600.77
zstd_09       2.31   236.92   667.64
zstd_16       2.32    41.47   660.06
zstd_15       2.32    60.37   584.45
zstd_14       2.32    74.60   673.10
zstd_12       2.32    75.16   661.96
zstd_13       2.32    75.22   676.12
zstd_11       2.32    75.58   636.75
zstd_10       2.32    95.05   645.07
zstd_07       2.32   139.52   672.88
zstd_06       2.32   145.40   670.45
zbewalgo'*    2.37   337.07   463.32
zbewalgo'     2.37   337.07   468.96
zbewalgo*     2.60   101.17   578.35
zbewalgo      2.60   101.17   586.88


- 'Isabella TCf01'
This dataset is an array of floating point values between -83.00402 and 31.51576.
Detailed Information about this dataset is online available at
http://www.vets.ucar.edu/vg/isabeldata/readme.html

zBeWalgo is the only algorithm which can compress this dataset with a noticeable
compressionratio.

Algorithm    ratio    write     read
842           1.00    60.09  1956.26
--hdd--       1.00   134.70   156.62
lz4hc_01      1.00   154.81  1839.37
lz4hc*_01     1.00   154.81  2105.53
lz4hc_10      1.00   157.33  2078.69
lz4hc*_10     1.00   157.33  2113.14
lz4hc_09      1.00   158.50  2018.51
lz4hc*_09     1.00   158.50  2093.65
lz4hc*_02     1.00   159.54  2104.91
lz4hc_02      1.00   159.54  2117.34
lz4hc_03      1.00   161.26  2070.76
lz4hc*_03     1.00   161.26  2107.27
lz4hc*_08     1.00   161.34  2100.74
lz4hc_08      1.00   161.34  2105.26
lz4hc*_04     1.00   161.95  2080.96
lz4hc_04      1.00   161.95  2104.00
lz4hc_05      1.00   162.17  2044.43
lz4hc*_05     1.00   162.17  2101.74
lz4hc*_06     1.00   163.61  2087.19
lz4hc_06      1.00   163.61  2104.61
lz4hc_07      1.00   164.51  2094.78
lz4hc*_07     1.00   164.51  2105.53
lz4_01        1.00  1134.89  2109.70
lz4*_01       1.00  1134.89  2118.71
lz4*_08       1.00  1141.96  2104.87
lz4_08        1.00  1141.96  2118.97
lz4_09        1.00  1145.55  2087.76
lz4*_09       1.00  1145.55  2118.85
lz4_02        1.00  1157.28  2094.33
lz4*_02       1.00  1157.28  2124.67
lz4*_03       1.00  1194.18  2106.36
lz4_03        1.00  1194.18  2119.89
lz4_04        1.00  1195.09  2117.03
lz4*_04       1.00  1195.09  2120.23
lz4*_05       1.00  1225.56  2109.04
lz4_05        1.00  1225.56  2120.52
lz4*_06       1.00  1261.67  2109.14
lz4_06        1.00  1261.67  2121.13
lz4*_07       1.00  1270.86  1844.63
lz4_07        1.00  1270.86  2041.08
lz4_10        1.00  1305.36  2109.22
lz4*_10       1.00  1305.36  2120.65
lzo           1.00  1338.61  2109.66
zstd_17       1.03    13.93  1138.94
zstd_18       1.03    14.01  1170.78
zstd_16       1.03    27.12  1073.75
zstd_15       1.03    43.52  1061.97
zstd_14       1.03    49.60  1082.98
zstd_12       1.03    55.03  1042.43
zstd_13       1.03    55.14  1173.50
zstd_11       1.03    55.24  1178.05
zstd_10       1.03    70.01  1173.05
zstd_07       1.03   118.10  1041.92
zstd_06       1.03   123.00  1171.59
zstd_05       1.03   124.61  1165.74
zstd_01       1.03   166.80  1005.29
zstd_04       1.03   170.25  1127.75
zstd_03       1.03   171.40  1172.34
zstd_02       1.03   174.08  1017.34
zstd_09       1.03   195.30  1176.82
zstd_08       1.03   195.98  1175.09
deflate_9     1.05    30.15   483.55
deflate_8     1.05    30.45   466.67
deflate_5     1.05    31.25   480.92
deflate_4     1.05    31.84   472.81
deflate_7     1.05    31.84   484.18
deflate_6     1.05    31.94   481.37
deflate_2     1.05    33.07   484.09
deflate_3     1.05    33.11   463.57
deflate_1     1.05    33.19   469.71
zstd_22       1.06     8.89   647.75
zstd_21       1.06    10.70   700.11
zstd_20       1.06    10.80   723.42
zstd_19       1.06    12.41   764.24
zbewalgo*     1.51   146.45   581.43
zbewalgo      1.51   146.45   592.86
zbewalgo'*    1.54    38.14   120.96
zbewalgo'     1.54    38.14   125.81


Signed-off-by: Benjamin Warnke <4bwarnke@xxxxxxxxxxxxxxxxxxxxxxxxx>

Benjamin Warnke (5):
  add compression algorithm zBeWalgo
  crypto: add zBeWalgo to crypto-api
  crypto: add unsafe decompression to api
  crypto: configurable compression level
  crypto: add flag for unstable encoding

 crypto/842.c                         |   3 +-
 crypto/Kconfig                       |  12 +
 crypto/Makefile                      |   1 +
 crypto/api.c                         |  76 ++++
 crypto/compress.c                    |  10 +
 crypto/crypto_null.c                 |   3 +-
 crypto/deflate.c                     |  19 +-
 crypto/lz4.c                         |  39 +-
 crypto/lz4hc.c                       |  36 +-
 crypto/lzo.c                         |   3 +-
 crypto/testmgr.c                     |  39 +-
 crypto/testmgr.h                     | 134 +++++++
 crypto/zbewalgo.c                    | 191 ++++++++++
 drivers/block/zram/zcomp.c           |  13 +-
 drivers/block/zram/zcomp.h           |   3 +-
 drivers/block/zram/zram_drv.c        |  56 ++-
 drivers/block/zram/zram_drv.h        |   2 +
 drivers/crypto/cavium/zip/zip_main.c |   6 +-
 drivers/crypto/nx/nx-842-powernv.c   |   3 +-
 drivers/crypto/nx/nx-842-pseries.c   |   3 +-
 fs/ubifs/compress.c                  |   2 +-
 include/linux/crypto.h               |  31 +-
 include/linux/zbewalgo.h             |  50 +++
 lib/Kconfig                          |   3 +
 lib/Makefile                         |   1 +
 lib/zbewalgo/BWT.c                   | 120 ++++++
 lib/zbewalgo/BWT.h                   |  21 ++
 lib/zbewalgo/JBE.c                   | 204 ++++++++++
 lib/zbewalgo/JBE.h                   |  13 +
 lib/zbewalgo/JBE2.c                  | 221 +++++++++++
 lib/zbewalgo/JBE2.h                  |  13 +
 lib/zbewalgo/MTF.c                   | 122 ++++++
 lib/zbewalgo/MTF.h                   |  13 +
 lib/zbewalgo/Makefile                |   4 +
 lib/zbewalgo/RLE.c                   | 137 +++++++
 lib/zbewalgo/RLE.h                   |  13 +
 lib/zbewalgo/bewalgo.c               | 401 ++++++++++++++++++++
 lib/zbewalgo/bewalgo.h               |  13 +
 lib/zbewalgo/bewalgo2.c              | 407 ++++++++++++++++++++
 lib/zbewalgo/bewalgo2.h              |  13 +
 lib/zbewalgo/bitshuffle.c            |  93 +++++
 lib/zbewalgo/bitshuffle.h            |  13 +
 lib/zbewalgo/huffman.c               | 262 +++++++++++++
 lib/zbewalgo/huffman.h               |  13 +
 lib/zbewalgo/include.h               |  94 +++++
 lib/zbewalgo/zbewalgo.c              | 713 +++++++++++++++++++++++++++++++++++
 mm/zswap.c                           |   2 +-
 net/xfrm/xfrm_ipcomp.c               |   3 +-
 48 files changed, 3605 insertions(+), 42 deletions(-)
 create mode 100644 crypto/zbewalgo.c
 create mode 100644 include/linux/zbewalgo.h
 create mode 100644 lib/zbewalgo/BWT.c
 create mode 100644 lib/zbewalgo/BWT.h
 create mode 100644 lib/zbewalgo/JBE.c
 create mode 100644 lib/zbewalgo/JBE.h
 create mode 100644 lib/zbewalgo/JBE2.c
 create mode 100644 lib/zbewalgo/JBE2.h
 create mode 100644 lib/zbewalgo/MTF.c
 create mode 100644 lib/zbewalgo/MTF.h
 create mode 100644 lib/zbewalgo/Makefile
 create mode 100644 lib/zbewalgo/RLE.c
 create mode 100644 lib/zbewalgo/RLE.h
 create mode 100644 lib/zbewalgo/bewalgo.c
 create mode 100644 lib/zbewalgo/bewalgo.h
 create mode 100644 lib/zbewalgo/bewalgo2.c
 create mode 100644 lib/zbewalgo/bewalgo2.h
 create mode 100644 lib/zbewalgo/bitshuffle.c
 create mode 100644 lib/zbewalgo/bitshuffle.h
 create mode 100644 lib/zbewalgo/huffman.c
 create mode 100644 lib/zbewalgo/huffman.h
 create mode 100644 lib/zbewalgo/include.h
 create mode 100644 lib/zbewalgo/zbewalgo.c

-- 
2.14.1