NS2网络模拟(3)-吞吐率

  1: #NS2_有线部分\Throughput.awk

  2:

  3: BEGIN {

  4:     #Initialize the variable

  5:     init = 0;

  6:     i = 0;

  7: }

  8:

  9: {

 10: #Event Abbreviation Type Value

 11: #%g %d %d %s %d %s %d %d.%d %d.%d %d %d

 12: #Normal Event

 13:         #r: Receive

 14:         #d: Drop

 15:         #e: Error

 16:         #+: Enqueue

 17:         #-: Dequeue

 18: #double  Time

 19: #int  (Link-layer) Source Node

 20: #int  (Link-layer) Destination Node

 21: #string  Packet Name

 22: #int  Packet Size

 23: #string  Flags

 24: #int  Flow ID

 25: #int  (Network-layer) Source Address

 26: #int  Source Port

 27: #int  (Network-layer) Destination Address

 28: #int  Destination Port

 29: #int  Sequence Number

 30: #int  Unique Packet ID

 31:

 32:     #Evaluate the fields to new viariables

 33:     EVENT       = $1;

 34:     TIME        = $2;

 35:     SRCNODE     = $3

 36:     DSTNODE     = $4;

 37:     PKTNAME     = $5;

 38:     PKTSIZE     = $6;

 39:     FLAGS       = $7;

 40:     FLOWID      = $8;

 41:     SRCADDPORT  = $9;

 42:     DSTADDPORT  = $10;

 43:     SEQNO       = $11;

 44:     PKTID       = $12;

 45:

 46:     #Count up the packets send to DstNode

 47:     if (EVENT == "-" && SRCNODE == 0 && DSTNODE == 1)

 48:     {

 49:         ByteSum[i + 1] = ByteSum[i] + PKTSIZE;

 50:

 51: #        if (init == 0) {

 52: #            StartTime = Time;

 53: #            init = 1;

 54: #        }

 55:

 56:         EndTime[i] = TIME;

 57:         i = i + 1;

 58:     }

 59: }

 60:

 61: END {

 62:     printf("%.2f\t%.2f\n", EndTime[0], 0);

 63:

 64:     #Calcute the throughput

 65:     for (j = 1; j < i; j ++)

 66:     {

 67:         Throught = (ByteSum[j] / (EndTime[j] - EndTime[0])) * 8 / 1000;

 68:         printf("%.2f\t%.2f\n", EndTime[j], Throught);

 69:     }

 70:

 71:     printf("%.2f\t%.2f\n", EndTime[i - 1], 0);

 72: }

 73: