Boost Spirit QI slow

Question

I try to parse TPCH files with Boost Spirit QI. My implementation inspired by the employee example of Spirit QI ( http://www.boost.org/doc/libs/1_52_0/libs/spirit/example/qi

Answer 1

Are you using -O2 when compiling?

Boosts libraries have a lot of redundancy that are removed when using optimization flags.

Another possible solution is use Repetition Parser Directive: http://www.boost.org/doc/libs/1_52_0/libs/spirit/doc/html/spirit/qi/reference/directive/repeat.html