zstd/compress/clevels.h

1 /* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
6  * This source code is licensed under both the BSD-style license (found in the
9  * You may select, at your option, one of the above-listed licenses.
18 /*-=====  Pre-defined compression levels  =====-*/
25 {   /* "default" - for any srcSize > 256 KB */
30     { 21, 16, 17,  1,  5,  0, ZSTD_dfast   },  /* level  3 */
31     { 21, 18, 18,  1,  5,  0, ZSTD_dfast   },  /* level  4 */
32     { 21, 18, 19,  3,  5,  2, ZSTD_greedy  },  /* level  5 */
33     { 21, 18, 19,  3,  5,  4, ZSTD_lazy    },  /* level  6 */
34     { 21, 19, 20,  4,  5,  8, ZSTD_lazy    },  /* level  7 */
35     { 21, 19, 20,  4,  5, 16, ZSTD_lazy2   },  /* level  8 */
36     { 22, 20, 21,  4,  5, 16, ZSTD_lazy2   },  /* level  9 */
37     { 22, 21, 22,  5,  5, 16, ZSTD_lazy2   },  /* level 10 */
38     { 22, 21, 22,  6,  5, 16, ZSTD_lazy2   },  /* level 11 */
39     { 22, 22, 23,  6,  5, 32, ZSTD_lazy2   },  /* level 12 */
40     { 22, 22, 22,  4,  5, 32, ZSTD_btlazy2 },  /* level 13 */
41     { 22, 22, 23,  5,  5, 32, ZSTD_btlazy2 },  /* level 14 */
42     { 22, 23, 23,  6,  5, 32, ZSTD_btlazy2 },  /* level 15 */
43     { 22, 22, 22,  5,  5, 48, ZSTD_btopt   },  /* level 16 */
44     { 23, 23, 22,  5,  4, 64, ZSTD_btopt   },  /* level 17 */
53     { 18, 12, 13,  1,  5,  1, ZSTD_fast    },  /* base for negative levels */
55     { 18, 14, 14,  1,  5,  0, ZSTD_dfast   },  /* level  2 */
57     { 18, 16, 17,  3,  5,  2, ZSTD_greedy  },  /* level  4.*/
58     { 18, 17, 18,  5,  5,  2, ZSTD_greedy  },  /* level  5.*/
59     { 18, 18, 19,  3,  5,  4, ZSTD_lazy    },  /* level  6.*/
62     { 18, 18, 19,  5,  4,  8, ZSTD_lazy2   },  /* level  9 */
64     { 18, 18, 19,  5,  4, 12, ZSTD_btlazy2 },  /* level 11.*/
79     { 17, 12, 12,  1,  5,  1, ZSTD_fast    },  /* base for negative levels */
81     { 17, 13, 15,  1,  5,  0, ZSTD_fast    },  /* level  2 */
82     { 17, 15, 16,  2,  5,  0, ZSTD_dfast   },  /* level  3 */
84     { 17, 16, 17,  3,  4,  2, ZSTD_greedy  },  /* level  5 */
88     { 17, 16, 17,  5,  4,  8, ZSTD_lazy2   },  /* level  9 */
90     { 17, 17, 17,  5,  4,  8, ZSTD_btlazy2 },  /* level 11 */
98     { 17, 18, 17,  5,  3,256, ZSTD_btultra2},  /* level 19.*/
105     { 14, 12, 13,  1,  5,  1, ZSTD_fast    },  /* base for negative levels */
106     { 14, 14, 15,  1,  5,  0, ZSTD_fast    },  /* level  1 */
110     { 14, 14, 14,  3,  4,  4, ZSTD_lazy    },  /* level  5.*/
114     { 14, 15, 14,  5,  4,  8, ZSTD_btlazy2 },  /* level  9.*/
118     { 14, 15, 14,  5,  3, 32, ZSTD_btultra },  /* level 13.*/
121     { 14, 15, 15,  5,  3, 48, ZSTD_btultra2},  /* level 16.*/