Optimization makes a difference #40
Description
Optimization makes a difference
Interesting thing - there is significant difference between -O2 and -O3 optimization (GCC) on Intel, and theoretically better optimization (-O3) turnes out worse.
Z:\> lzbench-2.0-liz-O2_w64.exe -t6,3 -o1c4 -elizard silesia.tar
| Compressor name | Compression| Decompress.| Compr. size | Ratio | Filename |
| --------------- | -----------| -----------| ----------- | ----- | ---------- |
| memcpy | 18803 MB/s | 17521 MB/s | 211947520 |100.00 | silesia.tar|
| lizard 2.1 -10 | 825 MB/s | 6118 MB/s | 103402971 | 48.79 | silesia.tar|
| lizard 2.1 -11 | 563 MB/s | 5971 MB/s | 93861621 | 44.29 | silesia.tar|
| lizard 2.1 -12 | 277 MB/s | 5781 MB/s | 86232422 | 40.69 | silesia.tar|
| lizard 2.1 -13 | 184 MB/s | 5802 MB/s | 83773119 | 39.53 | silesia.tar|
| lizard 2.1 -14 | 164 MB/s | 5878 MB/s | 82205976 | 38.79 | silesia.tar|
| lizard 2.1 -15 | 143 MB/s | 5925 MB/s | 81187330 | 38.31 | silesia.tar|
| lizard 2.1 -16 | 105 MB/s | 5790 MB/s | 79372512 | 37.45 | silesia.tar|
| lizard 2.1 -17 | 51.1 MB/s | 5887 MB/s | 78041714 | 36.82 | silesia.tar|
| lizard 2.1 -18 | 11.5 MB/s | 5949 MB/s | 77586984 | 36.61 | silesia.tar|
| lizard 2.1 -19 | 8.33 MB/s | 6008 MB/s | 77416400 | 36.53 | silesia.tar|
| lizard 2.1 -20 | 654 MB/s | 3964 MB/s | 96924204 | 45.73 | silesia.tar|
| lizard 2.1 -21 | 381 MB/s | 3984 MB/s | 89239174 | 42.10 | silesia.tar|
| lizard 2.1 -22 | 296 MB/s | 3902 MB/s | 84866725 | 40.04 | silesia.tar|
| lizard 2.1 -23 | 116 MB/s | 4082 MB/s | 81052209 | 38.24 | silesia.tar|
| lizard 2.1 -24 | 59.1 MB/s | 4068 MB/s | 78170875 | 36.88 | silesia.tar|
| lizard 2.1 -25 | 38.2 MB/s | 4065 MB/s | 75131286 | 35.45 | silesia.tar|
| lizard 2.1 -26 | 10.4 MB/s | 4181 MB/s | 72459161 | 34.19 | silesia.tar|
| lizard 2.1 -27 | 7.12 MB/s | 4175 MB/s | 70447615 | 33.24 | silesia.tar|
| lizard 2.1 -28 | 4.22 MB/s | 4240 MB/s | 69762972 | 32.92 | silesia.tar|
| lizard 2.1 -29 | 3.59 MB/s | 4117 MB/s | 68694227 | 32.41 | silesia.tar|
Z:\> lzbench-2.0-liz-O3_w64.exe -t6,3 -o1c4 -elizard silesia.tar
| Compressor name | Compression| Decompress.| Compr. size | Ratio | Filename |
| --------------- | -----------| -----------| ----------- | ----- | ---------- |
| memcpy | 18805 MB/s | 17398 MB/s | 211947520 |100.00 | silesia.tar|
| lizard 2.1 -10 | 782 MB/s | 4536 MB/s | 103402971 | 48.79 | silesia.tar|
| lizard 2.1 -11 | 541 MB/s | 4300 MB/s | 93861621 | 44.29 | silesia.tar|
| lizard 2.1 -12 | 290 MB/s | 4199 MB/s | 86232422 | 40.69 | silesia.tar|
| lizard 2.1 -13 | 187 MB/s | 4241 MB/s | 83773119 | 39.53 | silesia.tar|
| lizard 2.1 -14 | 166 MB/s | 4310 MB/s | 82205976 | 38.79 | silesia.tar|
| lizard 2.1 -15 | 145 MB/s | 4335 MB/s | 81187330 | 38.31 | silesia.tar|
| lizard 2.1 -16 | 105 MB/s | 4183 MB/s | 79372512 | 37.45 | silesia.tar|
| lizard 2.1 -17 | 50.6 MB/s | 4247 MB/s | 78041714 | 36.82 | silesia.tar|
| lizard 2.1 -18 | 11.6 MB/s | 4271 MB/s | 77586984 | 36.61 | silesia.tar|
| lizard 2.1 -19 | 8.40 MB/s | 4307 MB/s | 77416400 | 36.53 | silesia.tar|
| lizard 2.1 -20 | 636 MB/s | 3447 MB/s | 96924204 | 45.73 | silesia.tar|
| lizard 2.1 -21 | 383 MB/s | 3487 MB/s | 89239174 | 42.10 | silesia.tar|
| lizard 2.1 -22 | 294 MB/s | 3423 MB/s | 84866725 | 40.04 | silesia.tar|
| lizard 2.1 -23 | 118 MB/s | 3577 MB/s | 81052209 | 38.24 | silesia.tar|
| lizard 2.1 -24 | 60.2 MB/s | 3579 MB/s | 78170875 | 36.88 | silesia.tar|
| lizard 2.1 -25 | 38.2 MB/s | 3561 MB/s | 75131286 | 35.45 | silesia.tar|
| lizard 2.1 -26 | 10.3 MB/s | 3678 MB/s | 72459161 | 34.19 | silesia.tar|
| lizard 2.1 -27 | 6.99 MB/s | 3679 MB/s | 70447615 | 33.24 | silesia.tar|
| lizard 2.1 -28 | 4.07 MB/s | 3725 MB/s | 69762972 | 32.92 | silesia.tar|
| lizard 2.1 -29 | 3.50 MB/s | 3636 MB/s | 68694227 | 32.41 | silesia.tar|