flate: Improve level 5+6 compression #656
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Skip 2 bytes when doing end-of-match search. This allows better matches to be picked up further forward, adding up to 2 literals, but giving a better match. Level 5: nyc: 779171549 -> 767765165 github-june: 943488021 -> 938777887 github-ranks: 435111686 -> 435008334 sofia: 3083510553 -> 3048677443 level6, nyc: 768119006 -> 753545897 Performance unchanged.
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Skip 2 bytes when doing end-of-match search.
This allows better matches to be picked up further forward, adding up to 2 literals, but giving a better match.
Level 5:
nyc: 779171549 -> 767765165
github-june: 943488021 -> 938777887
github-ranks: 435111686 -> 435008334
sofia: 3083510553 -> 3048677443
level6, nyc: 768119006 -> 753545897
Performance unchanged.