"John Maddock" <john@johnmaddock.co.uk> writes:
I wonder why your results are so different from mine. Please post the code for your modified test so I can run it locally. Thanks.
It's in cvs now under the usual libs/regex/performance path: there are still some problems with the html output that I don't understand yet, but I haven't had a chance to look at those.
As for the results being different from yours, I have noticed that the results can differ quite a bit from run to run, particularly the ftp response expression "^([0-9]+)(\-| |$)(.*)$" I've seen either Boost.Regex or xpressive win out by some margin depending on the machine setup.
You guys might want to take a look at the performance test Matthias Troyer and I developed for the parameter library. Matthias is an expert in high-performance computing and knows how to correct for some of those effects. libs/parameter/test/efficiency.cpp and libs/parameter/test/timings.txt HTH, -- Dave Abrahams Boost Consulting www.boost-consulting.com