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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
18-fasteoi i801_smbus i18 derive     Interrupt 18, for device(s): 18-fasteoi i801_smbus
20-fasteoi ehci_hcd:usb7 i20 derive     Interrupt 20, for device(s): 20-fasteoi ehci_hcd:usb7
21-fasteoi uhci_hcd:usb3, uhci_hcd:usb6 i21 derive     Interrupt 21, for device(s): 21-fasteoi uhci_hcd:usb3, uhci_hcd:usb6
22-fasteoi uhci_hcd:usb2, uhci_hcd:usb5 i22 derive     Interrupt 22, for device(s): 22-fasteoi uhci_hcd:usb2, uhci_hcd:usb5
23 i23 derive     Interrupt 23, for device(s): 23-fasteoi uhci_hcd:usb1, uhci_hcd:usb4, ehci_hcd:usb8
2621440-edge eth2 i26 derive     Interrupt 26, for device(s): 2621440-edge eth2
3145728-edge eth0 i27 derive     Interrupt 27, for device(s): 3145728-edge eth0
3145729-edge eth0-TxRx-0 i28 derive     Interrupt 28, for device(s): 3145729-edge eth0-TxRx-0
3145730-edge eth0-TxRx-1 i29 derive     Interrupt 29, for device(s): 3145730-edge eth0-TxRx-1
3145731-edge eth0-TxRx-2 i30 derive     Interrupt 30, for device(s): 3145731-edge eth0-TxRx-2
3145732-edge eth0-TxRx-3 i31 derive     Interrupt 31, for device(s): 3145732-edge eth0-TxRx-3
3145733-edge eth0-TxRx-4 i32 derive     Interrupt 32, for device(s): 3145733-edge eth0-TxRx-4
3145734-edge eth0-TxRx-5 i33 derive     Interrupt 33, for device(s): 3145734-edge eth0-TxRx-5
3145735-edge eth0-TxRx-6 i34 derive     Interrupt 34, for device(s): 3145735-edge eth0-TxRx-6
3145736-edge eth0-TxRx-7 i35 derive     Interrupt 35, for device(s): 3145736-edge eth0-TxRx-7
2623488-edge eth3 i37 derive     Interrupt 37, for device(s): 2623488-edge eth3
3147776-edge eth1 i38 derive     Interrupt 38, for device(s): 3147776-edge eth1
3147777-edge eth1-TxRx-0 i39 derive     Interrupt 39, for device(s): 3147777-edge eth1-TxRx-0
3147778-edge eth1-TxRx-1 i40 derive     Interrupt 40, for device(s): 3147778-edge eth1-TxRx-1
3147779-edge eth1-TxRx-2 i41 derive     Interrupt 41, for device(s): 3147779-edge eth1-TxRx-2
3147780-edge eth1-TxRx-3 i42 derive     Interrupt 42, for device(s): 3147780-edge eth1-TxRx-3
3147781-edge eth1-TxRx-4 i43 derive     Interrupt 43, for device(s): 3147781-edge eth1-TxRx-4
3147782-edge eth1-TxRx-5 i44 derive     Interrupt 44, for device(s): 3147782-edge eth1-TxRx-5
3147783-edge eth1-TxRx-6 i45 derive     Interrupt 45, for device(s): 3147783-edge eth1-TxRx-6
3147784-edge eth1-TxRx-7 i46 derive     Interrupt 46, for device(s): 3147784-edge eth1-TxRx-7
512000-edge ahci[0000:00:1f.2] i47 derive     Interrupt 47, for device(s): 512000-edge ahci[0000:00:1f.2]
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