I have a program that downloads a ~23MB file from a web server on the LAN using LWP. It runs nearly instantly on various UNIX flavors, but takes over 2 minutes on Windows using ActivePerl 5.8.8. I'm using LWP 5.808 on Linux and 5.814 on Windows, but I don't think the version difference is the issue. Does anyone have any ideas about why this is so much slower on Windows? Here's a test script and the output on both Windows and Linux: Linux: 
Downloaded succeeded
NAME                        TIME        CUMULATIVE      PERCENTAGE
 Instantiate Useragent       0.000       0.000           0.002%
 Download file               2.400       2.400           99.991%
 _stop_                      0.000       2.400           0.007%

[download]
Windows: 
Downloaded succeeded
NAME                        TIME        CUMULATIVE      PERCENTAGE
 Instantiate Useragent       0.000       0.000           0.000%
 Download file               133.377     133.377         99.988%
 _stop_                      0.016       133.392         0.012%

[download]
use strict;
use warnings;
use LWP;
use Benchmark::Stopwatch;

my $url = 'http://hermes/datasquid/static.dbm';

my $stopwatch = Benchmark::Stopwatch->new->start;

my $ua = LWP::UserAgent->new;
$stopwatch->lap('Instantiate Useragent');

my  $response = $ua->get( $url );
$stopwatch->lap('Download file');

if($response->is_success) {
    print "Downloaded succeeded\n"; 
} else {
    print "Download failed\n";
}

print $stopwatch->stop->summary;

[download]

In reply to LWP slow downloads on windows by robobunny

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