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Instead of 3 a's, I've used 80 a's (more or less a normal line of text). On my iBook I get this:
use strict; use warnings; use Benchmark qw /cmpthese/; our @array = map {sprintf "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa:%03d" => $_} 0 .. 999; our (@a, @b); for (my $i = @array; -- $i;) { my $j = rand ($i + 1); @array [$i, $j] = @array [$j, $i]; } cmpthese -5 => { ST => '@::a = map {$_ -> [0]} sort {$a -> [1] <=> $b -> [1]} map {[$_ => substr $_, 81]} @array', Liz => '@::b = map {${$_ -> [0]}} sort {$a -> [1] <=> $b -> [1]} map {[\$_ => substr $_, 81]} @array', }; foreach my $i (0 .. 999) { die unless $a [$i] eq $b [$i]; } __END__ Rate ST Liz ST 26.7/s -- -10% Liz 29.6/s 11% --
which looks rather significant to me.

Your original benchmark doesn't show anything significant on my iBook, except that my approach is always faster but the difference is always less than .5%.

Liz


In reply to Re: Re: ${Schwartzian transform} ? by liz
in thread ${Schwartzian transform} ? by liz

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    [james28909]: Good morning!
    [james28909]: I have a problem I am trying to solve. I am packaging scripts using pdk and would like the verify the executable name each time it is executed
    [Corion]: Hi James!
    [james28909]: I looked through the docs, and see that PerlApp::exe() is suppose to return this information but whenever i try to use this, i get the error "Undefined subroutine &PerlApp::exe called"
    [james28909]: i just want to verify the integrity of the executables name each time it is run.
    [Corion]: Weird. this documentation says what you say.
    [Corion]: I assume you are experiencing this with your packaged program. Maybe also include PerlApp.pm in the packaging list?
    [james28909]: has anyone else run into this problem? i have tried searching but have not returned many results
    [james28909]: ah, good idea.
    [Corion]: What does print $PerlApp::VERSION output?

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