#!/idcom/bin/perl
use IO::Socket::INET;
use Time::HiRes qw( gettimeofday tv_interval );
use strict;

our $PORT = 9991;

if(fork) {
    my $s = IO::Socket::INET->new( LocalPort => $PORT, Listen => 5, Reuse => 1 );
    my $c = $s->accept();
        while(<$c>) {
            print {$c} $_;
        }
}
else {
    sleep 1;
    my $s = IO::Socket::INET->new( PeerAddr => 'localhost:'.$PORT );
    for(1..5) {
        my $t0 = [gettimeofday];
        print {$s} "func=mbs_descriptive&type=";
        print {$s} "&secid=313627KM2\n";
        print ''.<$s>;
        print tv_interval( $t0, [gettimeofday] ),"\n";
    }

}

OUTPUT
func=mbs_descriptive&type=&secid=313627KM2
0.000458
func=mbs_descriptive&type=&secid=313627KM2
0.040329
func=mbs_descriptive&type=&secid=313627KM2
0.040905
func=mbs_descriptive&type=&secid=313627KM2
0.03986
func=mbs_descriptive&type=&secid=313627KM2
0.040938