How To Capture network packets to MySQL

Question

I'm going to design a network Analyzer for WiFi (802.11) Currently I use tshark to capture and parse the WiFi frames and then pipe the output to a perl script to store the parsed information to Mysql database.

I just find out that I miss alot of frames in this process. I checked and the frames seem to be lost during the Pipe (when the output is delivered to perl to get srored in Mysql) Here is how it goes

(Tshark) -------frames are lost----> (Perl) --------> (MySQL) this is the how I pipe the output of tshark to script:

sudo tshark -i mon0 -t ad -T fields -e frame.time -e frame.len -e frame.cap_len -e radiotap.length | perl tshark-sql-capture.pl 

this is simple template of the perl script I use (tshark-sql-capture.pl)

# preparing the MySQL
my $dns = "DBI:mysql:capture;localhost";
my $dbh = DBI->connect($dns,user,pass);
my $db = "captured";

while (<STDIN>) {
    chomp($data = <STDIN>);
    ($time, $frame_len, $cap_len, $radiotap_len) = split "  ", $data;
    my $sth = $dbh-> prepare("INSERT INTO $db VALUES (str_to_date('$time','%M %d, %Y %H:%i:%s.%f'), '$frame_len', '$cap_len', '$radiotap_len'\n)" );
    $sth->execute;
}

#Terminate MySQL
$dbh->disconnect;

Any Idea which can help to make the performance better is appreciated.Or may be there is an Alternative mechanism which can do better. Right now my performance is 50% means I can store in mysql around half of the packets I'v captured.