use IPC::Run;
my $clopts = '-p 5432 -e --dbname=postgres -U postgres';
my $stdout;
my $stderr;
my @cmd = ('clusterdb', split /\s+/, $clopts);
my $ch;
for (my $i =0; $i < 2*4096; $i++) {
	$ch = IPC::Run::run(\@cmd, '>', \$stdout, '2>', \$stderr);
	if(not defined $stdout) {
		print($i.": not defined\n");
	}
	if($stdout eq '') {
		print($i.": stdout is empty\n");
	}
	if ( ($i % 100) == 0){
		print("$i\n");
	}
}