Benchmark result of current develop branch

Version 6.9.0 vs. current develop branch (commit 274ec40fc616a0af6d4230662d9d9a499dc05eb7)

Encoding: UTF-8 (*text file is ASCII)

Current develop branch
[benchmark]$ ./bench
file size: 20045118, str len: 20045118
/Twain/:                                 19.8 msec.
/(?i)Twain/:                             56.7 msec.
/[a-z]shing/:                            16.1 msec.
/Huck[a-zA-Z]+|Saw[a-zA-Z]+/:            78.2 msec.
/\b\w+nn\b/:                           1126.5 msec.
/[a-q][^u-z]{13}x/:                     110.6 msec.
/Tom|Sawyer|Huckleberry|Finn/:           85.6 msec.
/(?i)Tom|Sawyer|Huckleberry|Finn/:      625.8 msec.
/.{0,2}(Tom|Sawyer|Huckleberry|Finn)/:  256.3 msec.
/.{2,4}(Tom|Sawyer|Huckleberry|Finn)/:  370.7 msec.
/Tom.{10,25}river|river.{10,25}Tom/:    127.8 msec.
/[a-zA-Z]+ing/:                        1080.1 msec.
/\s[a-zA-Z]{0,12}ing\s/:                111.1 msec.
/([A-Za-z]awyer|[A-Za-z]inn)\s/:        272.9 msec.
/["'][^"']{0,30}[?!\.]["']/:            129.4 msec.

6.9.0
[benchmark]$ ./bench
file size: 20045118, str len: 20045118
/Twain/:                                 17.9 msec.
/(?i)Twain/:                            181.8 msec.
/[a-z]shing/:                            16.1 msec.
/Huck[a-zA-Z]+|Saw[a-zA-Z]+/:            77.9 msec.
/\b\w+nn\b/:                           1179.2 msec.
/[a-q][^u-z]{13}x/:                    2001.9 msec.
/Tom|Sawyer|Huckleberry|Finn/:           88.3 msec.
/(?i)Tom|Sawyer|Huckleberry|Finn/:      928.5 msec.
/.{0,2}(Tom|Sawyer|Huckleberry|Finn)/:  478.2 msec.
/.{2,4}(Tom|Sawyer|Huckleberry|Finn)/:  742.3 msec.
/Tom.{10,25}river|river.{10,25}Tom/:    130.0 msec.
/[a-zA-Z]+ing/:                        1214.8 msec.
/\s[a-zA-Z]{0,12}ing\s/:                132.6 msec.
/([A-Za-z]awyer|[A-Za-z]inn)\s/:        292.0 msec.
/["'][^"']{0,30}[?!\.]["']/:            138.0 msec.

Reference: http://sljit.sourceforge.net/regex_perf.html

Mac OSX

$ gcc --version
Configured with: --prefix=/Library/Developer/CommandLineTools/usr --with-gxx-in\
clude-dir=/usr/include/c++/4.2.1
Apple LLVM version 10.0.0 (clang-1000.10.44.2)
Target: x86_64-apple-darwin17.7.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin