Something sounds fishy (no pun intended) since your execution time does not change. Here are some suggestions:

1) Try reparsing the same data $x times in a loop and see if you get $x * .16 the execution time.

2) Show us your code - there may be something else happening.

3) Try using Benchmark

-UPDATE-

Looks like it is definitely start-up time. (using XML::Simple's pod example) 

use Benchmark;
use XML::Simple;
use Time::HiRes qw( gettimeofday tv_interval );

my $t0 = [gettimeofday];

my $config = XMLin();
my $elapsed = tv_interval ( $t0 );

print "First Parsing took $elapsed seconds\n";
$config = undef;
$t0 = [gettimeofday];
$config = XMLin();
$elapsed = tv_interval ( $t0 );
print "Second Parsing took $elapsed seconds\n";

timethis (1000, '$config = undef; $config = XMLin()');

__OUTPUT__

First Parsing took 0.312 seconds
Second Parsing took 0.016 seconds
timethis 1000:  6 wallclock secs ( 5.13 usr +  0.53 sys =  5.66 CPU) @
+ 176.80/s (n=1000)

[download]

--

flounder

In reply to Re: XML(::Simple) Parsing Efficiency by flounder99
in thread XML(::Simple) Parsing Efficiency by billyak

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