how to be faster than perl?

[Frits van Bommel]

Boris Bukowski wrote:
> buko01 at dizit:~/d$ time ./lineio.pl access.log
> 1087
> 
> real    0m0.105s
> user    0m0.092s
> sys     0m0.012s
> buko01 at dizit:~/d$ time ./lineio2 access.log
> 1087
> 
> real    0m1.547s
> user    0m1.528s
> sys     0m0.020s
> 
> still 15 times slower :-(
> Perl strings/IO must be somehow black magic.
> Looks like I have to write my own lineReader.

Some obvious questions:

Did you use -O -inline? If not, try those. I don't think they'll make 
much difference.

Do you actually search for "horizontal" (or a similar fixed string) ? To 
search for a non-regex string, std.string.find will likely be faster.


Other than that, I'm out of ideas.

IIRC Perl compiles regexes inline, presumably optimizing them along with 
the rest of the code, so that might explain why it's faster. This sort 
of stuff is what Perl was designed for...