Overview :: sipb.mit.edu :: ronald-ann :: irqstats

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• Critical (1)
• Warning (25)
• Unknown (0)

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• 389-ds [ d w m y ]
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Service graphs

Graph Information

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
timer	i0	derive			Interrupt 0, for device(s): timer
i8042	i1	derive			Interrupt 1, for device(s): i8042
rtc0	i8	derive			Interrupt 8, for device(s): rtc0
acpi	i9	derive			Interrupt 9, for device(s): acpi
ata_piix	i14	derive			Interrupt 14, for device(s): ata_piix
ata_piix	i15	derive			Interrupt 15, for device(s): ata_piix
uhci_hcd:usb5	i16	derive			Interrupt 16, for device(s): uhci_hcd:usb5
uhci_hcd:usb4	i18	derive			Interrupt 18, for device(s): uhci_hcd:usb4
uhci_hcd:usb3	i19	derive			Interrupt 19, for device(s): uhci_hcd:usb3
ehci_hcd:usb1, uhci_hcd:usb2	i23	derive			Interrupt 23, for device(s): ehci_hcd:usb1, uhci_hcd:usb2
eth0	i45	derive			Interrupt 45, for device(s): eth0
ahci	i46	derive			Interrupt 46, for device(s): ahci
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
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
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