From: "Bermejo, Rodrigo" <rodrigo.bermejo@...>
Date: 2003-08-26T23:03:55+09:00
Subject: Re: Ruby launching system apps?



>
>
> I agree with Gennady that you will frequently be better off using 
> native Ruby classes and methods for many things, particularly 
> in-memory string manipulation, even if comparable tools are available 
> through a Unix command.
>
> Regards,
>
> Mark
>
on ruby 1.6.8

time ruby -p -e 'gsub("sed","ruby")'  file_with_1000000_sed_lines
 7.61s user 2.02s system 35% cpu 27.161 total

time sed s/sed/ruby/g   file_with_1000000_sed_lines
 2.05s user 1.71s system 32% cpu 11.571 total

  ...I expected other results...but  (I hope)  it's  improved on 1.8  ( 
 I could not test it now on 1.8 )  


-r.