Package: grep Tags: patch The patch is DFA version of patch#16544 "Optimazation for is_mb_middle". It will improve performance for non-UTF8 locales in DFA engine.
I tested below. In both case, Speed-up 3-3.5x. $ yes $(printf '%078dm' 0)|head -1000000 > in $ for i in `seq 5`; do env LC_ALL=ja_JP.eucJP time src/grep n in; done $ yes jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj | head -1000000 > k $ for i in `seq 5`; do env LC_ALL=ja_JP.eucJP time src/grep -i foobar k; done Norihiro
use_mb_cache_in_dfa.txt
Description: Binary data
tests.txt
Description: Binary data
