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update compression levels for large inputs

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This commit is contained in:
Yann Collet 2018-05-13 01:53:38 -07:00
parent 66b81817b5
commit b4250489cf
1 changed files with 14 additions and 14 deletions
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28
lib/compress/zstd_compress.c
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@ -3423,25 +3423,25 @@ static const ZSTD_compressionParameters ZSTD_defaultCParameters[4][ZSTD_MAX_CLEV
{ 19, 13, 14, 1, 7, 1, ZSTD_fast }, /* level 1 */
{ 19, 15, 16, 1, 6, 1, ZSTD_fast }, /* level 2 */
{ 20, 16, 17, 1, 5, 8, ZSTD_dfast }, /* level 3 */
{ 20, 17, 18, 1, 5, 8, ZSTD_dfast }, /* level 4 */
{ 20, 17, 18, 2, 5, 16, ZSTD_greedy }, /* level 5 */
{ 21, 17, 19, 2, 5, 16, ZSTD_lazy }, /* level 6 */
{ 21, 18, 19, 3, 5, 16, ZSTD_lazy }, /* level 7 */
{ 21, 18, 20, 3, 5, 16, ZSTD_lazy2 }, /* level 8 */
{ 21, 19, 20, 3, 5, 16, ZSTD_lazy2 }, /* level 9 */
{ 21, 19, 21, 4, 5, 16, ZSTD_lazy2 }, /* level 10 */
{ 22, 20, 22, 4, 5, 16, ZSTD_lazy2 }, /* level 11 */
{ 20, 18, 18, 1, 5, 8, ZSTD_dfast }, /* level 4 */
{ 20, 18, 18, 2, 5, 16, ZSTD_greedy }, /* level 5 */
{ 21, 18, 19, 2, 5, 16, ZSTD_lazy }, /* level 6 */
{ 21, 18, 19, 3, 5, 16, ZSTD_lazy2 }, /* level 7 */
{ 21, 19, 19, 3, 5, 16, ZSTD_lazy2 }, /* level 8 */
{ 21, 19, 20, 4, 5, 16, ZSTD_lazy2 }, /* level 9 */
{ 21, 20, 21, 4, 5, 16, ZSTD_lazy2 }, /* level 10 */
{ 21, 21, 22, 4, 5, 16, ZSTD_lazy2 }, /* level 11 */
{ 22, 20, 22, 5, 5, 16, ZSTD_lazy2 }, /* level 12 */
{ 22, 21, 22, 4, 5, 32, ZSTD_btlazy2 }, /* level 13 */
{ 22, 21, 22, 5, 5, 32, ZSTD_btlazy2 }, /* level 14 */
{ 22, 22, 22, 6, 5, 32, ZSTD_btlazy2 }, /* level 15 */
{ 22, 21, 22, 4, 5, 48, ZSTD_btopt }, /* level 16 */
{ 23, 22, 22, 4, 4, 48, ZSTD_btopt }, /* level 17 */
{ 23, 22, 22, 5, 3, 64, ZSTD_btopt }, /* level 18 */
{ 23, 23, 22, 7, 3,128, ZSTD_btopt }, /* level 19 */
{ 25, 25, 23, 7, 3,128, ZSTD_btultra }, /* level 20 */
{ 26, 26, 24, 7, 3,256, ZSTD_btultra }, /* level 21 */
{ 27, 27, 25, 9, 3,512, ZSTD_btultra }, /* level 22 */
{ 23, 22, 22, 4, 4, 64, ZSTD_btopt }, /* level 17 */
{ 23, 23, 22, 6, 3,256, ZSTD_btopt }, /* level 18 */
{ 23, 24, 22, 7, 3,256, ZSTD_btultra }, /* level 19 */
{ 25, 25, 23, 7, 3,256, ZSTD_btultra }, /* level 20 */
{ 26, 26, 24, 7, 3,512, ZSTD_btultra }, /* level 21 */
{ 27, 27, 25, 9, 3,999, ZSTD_btultra }, /* level 22 */
},
{ /* for srcSize <= 256 KB */
/* W, C, H, S, L, T, strat */