[root@ast01 ~]# cat /proc/interrupts 
           CPU0       CPU1       CPU2       CPU3       
  0:     160356     162025     161255     248782    IO-APIC-edge  timer
  8:          1          1          1          4    IO-APIC-edge  rtc
  9:          0          0          0          0   IO-APIC-level  acpi
 14:        591       4115       1877       7520    IO-APIC-edge  ide0
 15:        840       1980       2282        558    IO-APIC-edge  ide1
169:      15461          0          0         24   IO-APIC-level  ehci_hcd, eth0
177:          0          0          0          0   IO-APIC-level  uhci_hcd
185:      20011      52120         22     126065   IO-APIC-level  r4fxo
193:          0          0          0          0   IO-APIC-level  uhci_hcd
NMI:          0          0          0          0 
LOC:     732122     732121     732120     732103 
ERR:          0
MIS:          0