学步园

BEGIN {<br /> highest_packet_id = 0;<br /> total_packet = 0;<br /> total_delay_time = 0;<br /> }<br /> {<br /> action = $1;<br /> time = $2;<br /> from = $3;<br /> to = $4;<br /> type = $5;<br /> pktsize = $6;<br /> flow_id = $8;<br /> src = $9;<br /> dst = $10;<br /> seq_no = $11;<br /> packet_id = $12;<br /> if ( packet_id > highest_packet_id )<br /> highest_packet_id = packet_id;<br /> if ( start_time[packet_id] == 0 )<br /> start_time[packet_id] = time;<br /> if ( flow_id == 2 && action != "d" ) {<br /> if ( action == "r" ) {<br /> end_time[packet_id] = time;<br /> }<br /> } else {<br /> end_time[packet_id] = -1;<br /> }<br /> }<br /> END {<br /> for ( packet_id = 0; packet_id <= highest_packet_id; packet_id++ ) {<br /> start = start_time[packet_id];<br /> end = end_time[packet_id];<br /> if (end >start)<br /> {<br /> total_packet ++;<br /> total_delay_time +=end - start;<br /> }<br /> }<br /> printf ("average delay time is: %.9f/n",total_delay_time/total_packet);<br /> }