autotest/autotest — pull request #783 by WenliQuan (2014-01-03 10:00:31+00:00)
Title: Revise netperf's avg_update

tpkt_per_exit 14=6/12,rpkt_per_irq 15=5/13 according
to following columns.

2 3 4 5 6
throughput CPU thr_per_CPU rx_pkts tx_pkts
7 8 9 10 11 12 13
rx_byts tx_byts re_pkts rx_intr tx_intr io_exit irq_inj
14 15
tpkt_per_exit rpkt_per_irq

Signed-off-by: wenli