I was curious so I ran my own benchmark. It seems to validate yours. Looks like a consistent 200% increase in speed with XML::Parser.

use strict;
use warnings;

use XML::Simple;
use Benchmark qw/cmpthese/;

cmpthese(-5, {
      "Default"          => sub { loadit(); },
      "XML::Parser"      => sub { loadit("XML::Parser"); },
      "XML::SAX::Expat"  => sub { loadit("XML::SAX::Expat"); },
}); 


sub loadit {
    my $parser = shift || "";
    local $ENV{XML_SIMPLE_PREFERRED_PARSER} = $parser;
    my $xs = XML::Simple->new(ForceArray => 0, KeyAttr    => {}); 
    my $xml = $xs->XMLin("xmltest.xml");
}

__DATA__
C:\test>perl xmlbench.pl
                  Rate XML::SAX::Expat         Default     XML::Parser
XML::SAX::Expat 4.23/s              --             -3%            -67%
Default         4.36/s              3%              --            -66%
XML::Parser     12.8/s            203%            194%              --

C:\test>perl xmlbench.pl
                  Rate XML::SAX::Expat         Default     XML::Parser
XML::SAX::Expat 4.35/s              --             -0%            -66%
Default         4.36/s              0%              --            -66%
XML::Parser     12.9/s            197%            196%              --

C:\test>perl xmlbench.pl
                  Rate XML::SAX::Expat         Default     XML::Parser
XML::SAX::Expat 4.37/s              --             -1%            -66%
Default         4.40/s              1%              --            -66%
XML::Parser     13.0/s            197%            195%              --

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___________
Eric Hodges

In reply to Re: XML::Simple Benchmarks with various backends by eric256
in thread XML::Simple Benchmarks with various backends by leriksen

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