Re^2: read directory

Update: Sorry, I know this post was a bit lame and didn't prove anything

I just benchmarked the difference between "glob" and "<>" and found very little difference (subsequent runs flip-flopped which was faster). If that's the case, then I'd prefer the glob('pending/*') over the <pending/*> call because of the awkward bare word. But then, thats just me.

#!/usr/bin/perl
use strict;
use warnings;
use Benchmark qw(cmpthese);

cmpthese(
    20_000, {
        '<>'   => sub { my @results = <pending/*>; },
        'glob' => sub { my @results = glob('pending/*'); },
    },
);
[download]

and the results

       Rate glob   <>
glob 7194/s   --  -0%
<>   7220/s   0%   --
[download]

-biz-

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Re^3: read directory by shmem (Chancellor) on Jul 08, 2006 at 14:28 UTC
well, `<DATA>` also has a bareword.. ;-) I'm not surprised that `glob` and `<>` down differ much, since they are essentially the same... bigger savings can be achieved by using -M instead of `(stat)[9]`, because doing so eliminates the overhead of making a list just to get its 10^th element. --shmem _($_=" "x(1<<5)."?\n".q·/)Oo. G°\ / /\_¯/(q / ---------------------------- \__(m.====·.(_("always off the crowd"))."· ");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}	[reply] [d/l] [select]
Re^3: read directory by Hue-Bond (Priest) on Jul 08, 2006 at 14:33 UTC
I just benchmarked the difference between "glob" and "<>" and found very little difference That's hardly surprising since glob `is the internal function implementing the "<*.c>" operator` according to the documentation. -- David Serrano	[reply]