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Shows the number of different IRQs received by the kernel. High disk or network traffic can cause a high number of interrupts (with good hardware and drivers this will be less so). Sudden high interrupt activity with no associated higher system activity is not normal.

Field Internal name Type Warn Crit Info
2-edge timer i0 derive     Interrupt 0, for device(s): 2-edge timer
1-edge i8042 i1 derive     Interrupt 1, for device(s): 1-edge i8042
8-edge rtc0 i8 derive     Interrupt 8, for device(s): 8-edge rtc0
9-fasteoi acpi i9 derive     Interrupt 9, for device(s): 9-fasteoi acpi
12-edge i8042 i12 derive     Interrupt 12, for device(s): 12-edge i8042
17-fasteoi uhci_hcd:usb3 i17 derive     Interrupt 17, for device(s): 17-fasteoi uhci_hcd:usb3
18-fasteoi uhci_hcd:usb4 i18 derive     Interrupt 18, for device(s): 18-fasteoi uhci_hcd:usb4
19-fasteoi ehci_hcd:usb1 i19 derive     Interrupt 19, for device(s): 19-fasteoi ehci_hcd:usb1
20-fasteoi uhci_hcd:usb6, uhci_hcd:usb8 i20 derive     Interrupt 20, for device(s): 20-fasteoi uhci_hcd:usb6, uhci_hcd:usb8
21 i21 derive     Interrupt 21, for device(s): 21-fasteoi ehci_hcd:usb2, uhci_hcd:usb5, uhci_hcd:usb7
16384-edge PCIe PME i25 derive     Interrupt 25, for device(s): 16384-edge PCIe PME
49152-edge PCIe PME i26 derive     Interrupt 26, for device(s): 49152-edge PCIe PME
114688-edge PCIe PME i27 derive     Interrupt 27, for device(s): 114688-edge PCIe PME
147456-edge PCIe PME i28 derive     Interrupt 28, for device(s): 147456-edge PCIe PME
163840-edge PCIe PME i29 derive     Interrupt 29, for device(s): 163840-edge PCIe PME
1048576-edge megasas i33 derive     Interrupt 33, for device(s): 1048576-edge megasas
2097152-edge qla2xxx (default) i35 derive     Interrupt 35, for device(s): 2097152-edge qla2xxx (default)
2097153-edge qla2xxx (rsp_q) i36 derive     Interrupt 36, for device(s): 2097153-edge qla2xxx (rsp_q)
2099200-edge qla2xxx (default) i38 derive     Interrupt 38, for device(s): 2099200-edge qla2xxx (default)
2099201-edge qla2xxx (rsp_q) i39 derive     Interrupt 39, for device(s): 2099201-edge qla2xxx (rsp_q)
524288-edge eth0-0 i40 derive     Interrupt 40, for device(s): 524288-edge eth0-0
524289-edge eth0-1 i41 derive     Interrupt 41, for device(s): 524289-edge eth0-1
524290-edge eth0-2 i42 derive     Interrupt 42, for device(s): 524290-edge eth0-2
524291-edge eth0-3 i43 derive     Interrupt 43, for device(s): 524291-edge eth0-3
524292-edge eth0-4 i44 derive     Interrupt 44, for device(s): 524292-edge eth0-4
524293-edge eth0-5 i45 derive     Interrupt 45, for device(s): 524293-edge eth0-5
524294-edge eth0-6 i46 derive     Interrupt 46, for device(s): 524294-edge eth0-6
524295-edge eth0-7 i47 derive     Interrupt 47, for device(s): 524295-edge eth0-7
526336-edge eth1-0 i49 derive     Interrupt 49, for device(s): 526336-edge eth1-0
526337-edge eth1-1 i50 derive     Interrupt 50, for device(s): 526337-edge eth1-1
526338-edge eth1-2 i51 derive     Interrupt 51, for device(s): 526338-edge eth1-2
526339-edge eth1-3 i52 derive     Interrupt 52, for device(s): 526339-edge eth1-3
526340-edge eth1-4 i53 derive     Interrupt 53, for device(s): 526340-edge eth1-4
526341-edge eth1-5 i54 derive     Interrupt 54, for device(s): 526341-edge eth1-5
526342-edge eth1-6 i55 derive     Interrupt 55, for device(s): 526342-edge eth1-6
526343-edge eth1-7 i56 derive     Interrupt 56, for device(s): 526343-edge eth1-7
Non-maskable interrupts iNMI derive     Interrupt NMI, for device(s): Non-maskable interrupts
Local timer interrupts iLOC derive     Interrupt LOC, for device(s): Local timer interrupts
Spurious interrupts iSPU derive     Interrupt SPU, for device(s): Spurious interrupts
Performance monitoring interrupts iPMI derive     Interrupt PMI, for device(s): Performance monitoring interrupts
IRQ work interrupts iIWI derive     Interrupt IWI, for device(s): IRQ work interrupts
APIC ICR read retries iRTR derive     Interrupt RTR, for device(s): APIC ICR read retries
Rescheduling interrupts iRES derive     Interrupt RES, for device(s): Rescheduling interrupts
Function call interrupts iCAL derive     Interrupt CAL, for device(s): Function call interrupts
TLB shootdowns iTLB derive     Interrupt TLB, for device(s): TLB shootdowns
Thermal event interrupts iTRM derive     Interrupt TRM, for device(s): Thermal event interrupts
Threshold APIC interrupts iTHR derive     Interrupt THR, for device(s): Threshold APIC interrupts
Deferred Error APIC interrupts iDFR derive     Interrupt DFR, for device(s): Deferred Error APIC interrupts
Machine check exceptions iMCE derive     Interrupt MCE, for device(s): Machine check exceptions
Machine check polls iMCP derive     Interrupt MCP, for device(s): Machine check polls
ERR iERR derive      
MIS iMIS derive      
Posted-interrupt notification event iPIN derive     Interrupt PIN, for device(s): Posted-interrupt notification event
Posted-interrupt wakeup event iPIW derive     Interrupt PIW, for device(s): Posted-interrupt wakeup event