200:
                Rate  orig_poster   test_regexps test_regexps2
orig_poster   9.70/s            --          -51%          -81%
test_regexps  19.6/s          103%            --          -61%
test_regexps2 49.8/s          413%          153%            --

400:
                Rate  orig_poster   test_regexps test_regexps2
orig_poster   2.44/s            --          -52%          -84%
test_regexps  5.08/s          109%            --          -67%
test_regexps2 15.5/s          535%          205%            --

600:
                Rate  orig_poster   test_regexps test_regexps2
orig_poster   1.06/s            --          -54%          -86%
test_regexps  2.30/s          117%            --          -70%
test_regexps2 7.75/s          633%          237%            --