Re: Re: regex problem!

Question:
Could it be that

($name) = split /-\d/,$string,2;
[download]

is more efficient regarding time and/or memory than your solution?

Just wonder because I thought that this will just split into two array elements, thus saving some memory (maybe) but at least some time.

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Re: Re: Re: regex problem! by antirice (Priest) on Jul 18, 2003 at 11:38 UTC
Yes, it is. `Benchmark: running mine, yours for at least 3 CPU seconds... mine: 3 wallclock secs ( 3.03 usr + 0.00 sys = 3.03 CPU) @ 27 +8704.16/s (n=844822) yours: 3 wallclock secs ( 3.13 usr + 0.00 sys = 3.13 CPU) @ 34 +5612.45/s (n=1082739) Rate mine yours mine 278704/s -- -19% yours 345612/s 24% --` [download] antirice The first rule of Perl club is - use Perl The ith rule of Perl club is - follow rule i - 1 for i > 1	[reply] [d/l]

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Re: Re: Re: regex problem!
by antirice (Priest) on Jul 18, 2003 at 11:38 UTC

Yes, it is.

Benchmark: running mine, yours for at least 3 CPU seconds...
      mine:  3 wallclock secs ( 3.03 usr +  0.00 sys =  3.03 CPU) @ 27
+8704.16/s (n=844822)
     yours:  3 wallclock secs ( 3.13 usr +  0.00 sys =  3.13 CPU) @ 34
+5612.45/s (n=1082739)
          Rate  mine yours
mine  278704/s    --  -19%
yours 345612/s   24%    --
[download]

antirice
The first rule of Perl club is - use Perl
The ith rule of Perl club is - follow rule i - 1 for i > 1

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[d/l]