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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
3-edge ttyS1 i3 derive     Interrupt 3, for device(s): 3-edge ttyS1
4-edge i4 derive     Interrupt 4, for device(s): 4-edge
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
18 i18 derive     Interrupt 18, for device(s): 18-fasteoi i801_smbus, ehci_hcd:usb1, ehci_hcd:usb5
19-fasteoi xhci-hcd:usb3, hpilo i19 derive     Interrupt 19, for device(s): 19-fasteoi xhci-hcd:usb3, hpilo
16384-edge PCIe PME i25 derive     Interrupt 25, for device(s): 16384-edge PCIe PME
18432-edge PCIe PME i26 derive     Interrupt 26, for device(s): 18432-edge PCIe PME
32768-edge PCIe PME i28 derive     Interrupt 28, for device(s): 32768-edge PCIe PME
34816-edge PCIe PME i29 derive     Interrupt 29, for device(s): 34816-edge PCIe PME
36864-edge PCIe PME i30 derive     Interrupt 30, for device(s): 36864-edge PCIe PME
38912-edge PCIe PME i31 derive     Interrupt 31, for device(s): 38912-edge PCIe PME
49152-edge PCIe PME i33 derive     Interrupt 33, for device(s): 49152-edge PCIe PME
51200-edge PCIe PME i34 derive     Interrupt 34, for device(s): 51200-edge PCIe PME
53248-edge PCIe PME i35 derive     Interrupt 35, for device(s): 53248-edge PCIe PME
55296-edge PCIe PME i36 derive     Interrupt 36, for device(s): 55296-edge PCIe PME
458752-edge PCIe PME i37 derive     Interrupt 37, for device(s): 458752-edge PCIe PME
462848-edge PCIe PME i38 derive     Interrupt 38, for device(s): 462848-edge PCIe PME
466944-edge PCIe PME i39 derive     Interrupt 39, for device(s): 466944-edge PCIe PME
471040-edge PCIe PME i40 derive     Interrupt 40, for device(s): 471040-edge PCIe PME
473088-edge PCIe PME i41 derive     Interrupt 41, for device(s): 473088-edge PCIe PME
1572864-edge hpsa6-msix0 i42 derive     Interrupt 42, for device(s): 1572864-edge hpsa6-msix0
1572865-edge hpsa6-msix1 i43 derive     Interrupt 43, for device(s): 1572865-edge hpsa6-msix1
1572866-edge hpsa6-msix2 i44 derive     Interrupt 44, for device(s): 1572866-edge hpsa6-msix2
1572867-edge hpsa6-msix3 i45 derive     Interrupt 45, for device(s): 1572867-edge hpsa6-msix3
1572868-edge hpsa6-msix4 i46 derive     Interrupt 46, for device(s): 1572868-edge hpsa6-msix4
1572869-edge hpsa6-msix5 i47 derive     Interrupt 47, for device(s): 1572869-edge hpsa6-msix5
0-edge dmar0 i48 derive     Interrupt 48, for device(s): 0-edge dmar0
1572870-edge hpsa6-msix6 i49 derive     Interrupt 49, for device(s): 1572870-edge hpsa6-msix6
1572871-edge hpsa6-msix7 i50 derive     Interrupt 50, for device(s): 1572871-edge hpsa6-msix7
1572872-edge hpsa6-msix8 i51 derive     Interrupt 51, for device(s): 1572872-edge hpsa6-msix8
1572873-edge hpsa6-msix9 i52 derive     Interrupt 52, for device(s): 1572873-edge hpsa6-msix9
1572874-edge hpsa6-msix10 i53 derive     Interrupt 53, for device(s): 1572874-edge hpsa6-msix10
1572875-edge hpsa6-msix11 i54 derive     Interrupt 54, for device(s): 1572875-edge hpsa6-msix11
1572876-edge hpsa6-msix12 i55 derive     Interrupt 55, for device(s): 1572876-edge hpsa6-msix12
1572877-edge hpsa6-msix13 i56 derive     Interrupt 56, for device(s): 1572877-edge hpsa6-msix13
1572878-edge hpsa6-msix14 i57 derive     Interrupt 57, for device(s): 1572878-edge hpsa6-msix14
1572879-edge hpsa6-msix15 i58 derive     Interrupt 58, for device(s): 1572879-edge hpsa6-msix15
1572880-edge hpsa6-msix16 i59 derive     Interrupt 59, for device(s): 1572880-edge hpsa6-msix16
1572881-edge hpsa6-msix17 i60 derive     Interrupt 60, for device(s): 1572881-edge hpsa6-msix17
1572882-edge hpsa6-msix18 i61 derive     Interrupt 61, for device(s): 1572882-edge hpsa6-msix18
1572883-edge hpsa6-msix19 i62 derive     Interrupt 62, for device(s): 1572883-edge hpsa6-msix19
1572884-edge hpsa6-msix20 i63 derive     Interrupt 63, for device(s): 1572884-edge hpsa6-msix20
1572885-edge hpsa6-msix21 i64 derive     Interrupt 64, for device(s): 1572885-edge hpsa6-msix21
1572886-edge hpsa6-msix22 i65 derive     Interrupt 65, for device(s): 1572886-edge hpsa6-msix22
1572887-edge hpsa6-msix23 i66 derive     Interrupt 66, for device(s): 1572887-edge hpsa6-msix23
532480-edge uhci_hcd:usb2 i67 derive     Interrupt 67, for device(s): 532480-edge uhci_hcd:usb2
512000-edge ahci[0000:00:1f.2] i68 derive     Interrupt 68, for device(s): 512000-edge ahci[0000:00:1f.2]
65536-edge ioat-msix i70 derive     Interrupt 70, for device(s): 65536-edge ioat-msix
67584-edge ioat-msix i72 derive     Interrupt 72, for device(s): 67584-edge ioat-msix
69632-edge ioat-msix i73 derive     Interrupt 73, for device(s): 69632-edge ioat-msix
71680-edge ioat-msix i74 derive     Interrupt 74, for device(s): 71680-edge ioat-msix
73728-edge ioat-msix i75 derive     Interrupt 75, for device(s): 73728-edge ioat-msix
75776-edge ioat-msix i76 derive     Interrupt 76, for device(s): 75776-edge ioat-msix
77824-edge ioat-msix i77 derive     Interrupt 77, for device(s): 77824-edge ioat-msix
79872-edge ioat-msix i78 derive     Interrupt 78, for device(s): 79872-edge ioat-msix
1048576-edge eno1-tx-0 i79 derive     Interrupt 79, for device(s): 1048576-edge eno1-tx-0
1048577-edge eno1-rx-1 i80 derive     Interrupt 80, for device(s): 1048577-edge eno1-rx-1
1048578-edge eno1-rx-2 i81 derive     Interrupt 81, for device(s): 1048578-edge eno1-rx-2
1048579-edge eno1-rx-3 i82 derive     Interrupt 82, for device(s): 1048579-edge eno1-rx-3
1048580-edge eno1-rx-4 i83 derive     Interrupt 83, for device(s): 1048580-edge eno1-rx-4
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
Nested posted-interrupt event iNPI derive     Interrupt NPI, for device(s): Nested posted-interrupt event
Posted-interrupt wakeup event iPIW derive     Interrupt PIW, for device(s): Posted-interrupt wakeup event