why GNU grep is fast

[Gabor Kovesdan]

  Em 2010.08.21. 4:31, Mike Haertel escreveu:
> Hi Gabor,
>
> I am the original author of GNU grep.  I am also a FreeBSD user,
> although I live on -stable (and older) and rarely pay attention
> to -current.
>
> However, while searching the -current mailing list for an unrelated
> reason, I stumbled across some flamage regarding BSD grep vs GNU grep
> performance.  You may have noticed that discussion too...
>
> Anyway, just FYI, here's a quick summary of where GNU grep gets
> its speed.  Hopefully you can carry these ideas over to BSD grep.
Thanks, Mike, I'll check how I could adopt these ideas into BSD grep. I 
think your kind help was such a nice gesture and the open souce world 
should be based on such cooperation instead of meaningless competition.

Gabor