~ # cat /proc/interrupts && /usr/local/bin/iperf -c 192.168.65.14 -r -l 64k && cat /proc/interrupts 
           CPU0
  0:      82959   ITDM320 Timer Tick
 12:       1604   it_uart
 27:     146446   eth0
 30:          0   ide_cfc_hotplug
 40:          0   i2c
Err:          0
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 42.7 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.65.14, TCP port 5001
TCP window size: 41.6 KByte (default)
------------------------------------------------------------
[  6] local 192.168.65.16 port 4981 connected with 192.168.65.14 port 5001
[  6]  0.0-10.1 sec  17.1 MBytes  14.2 Mbits/sec
[  6] local 192.168.65.16 port 5001 connected with 192.168.65.14 port 53666
[  6]  0.0-10.3 sec  18.9 MBytes  15.4 Mbits/sec
           CPU0
  0:      85021   ITDM320 Timer Tick
 12:       1604   it_uart
 27:     175274   eth0
 30:          0   ide_cfc_hotplug
 40:          0   i2c
Err:          0