#!/bin/perl
use warnings;
use strict;
use Time::HiRes qw ( gettimeofday ) ;
my $data = "E"x1020; #start with using 1k blocks shall we?
my %cgi_vars;
foreach my $pair ( split ( "&", $ENV{'QUERY_STRING'} ) )
{
my ( $var, $val ) = split ("=", $pair);
$cgi_vars{$var} = $val;
}
#cgi headers:
print "content-type: text/html\n\n";
#take time
my ( $start_seconds, $start_microseconds ) = gettimeofday;
print "$start_seconds $start_microseconds
\n";
#print stuff to thingy
if ( $cgi_vars{"data_size"} )
{
for ( my $count=0; $count < $cgi_vars{"data_size"}; $count++ )
{
print "\n";
}
}
#take time.
my ( $end_seconds, $end_microseconds ) = gettimeofday;
print "$end_seconds $end_microseconds
\n";
#compare.
my $time_delta = ($end_seconds - $start_seconds) + ( ( $end_microseconds - $start_microseconds) / 1000000);
if ( $cgi_vars{"data_size"} )
{
print "your data transfer of ", $cgi_vars{"data_size"}, "k took ", $time_delta, " seconds
\n";
print "your bandwidth is ",$cgi_vars{"data_size"} / $time_delta ," kilobytes/sec
\n";
}
else
{
print "please invoke as $ENV{'SCRIPT_NAME'}?data_size=100
\n";
}