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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	Warning	Critical	Info
EXT	iEXT	derive
AIO	iAIO	derive
[EXT] Clock Comparator	iCLK	derive			Interrupt CLK, for device(s): [EXT] Clock Comparator
[EXT] External Call	iEXC	derive			Interrupt EXC, for device(s): [EXT] External Call
[EXT] Emergency Signal	iEMS	derive			Interrupt EMS, for device(s): [EXT] Emergency Signal
[EXT] CPU Timer	iTMR	derive			Interrupt TMR, for device(s): [EXT] CPU Timer
[EXT] Timing Alert	iTAL	derive			Interrupt TAL, for device(s): [EXT] Timing Alert
[EXT] Pseudo Page Fault	iPFL	derive			Interrupt PFL, for device(s): [EXT] Pseudo Page Fault
[EXT] DASD Diag	iDSD	derive			Interrupt DSD, for device(s): [EXT] DASD Diag
[EXT] Virtio	iVRT	derive			Interrupt VRT, for device(s): [EXT] Virtio
[EXT] Service Call	iSCP	derive			Interrupt SCP, for device(s): [EXT] Service Call
[EXT] IUCV	iIUC	derive			Interrupt IUC, for device(s): [EXT] IUCV
[EXT] CPU-Measurement: Sampling	iCMS	derive			Interrupt CMS, for device(s): [EXT] CPU-Measurement: Sampling
[EXT] CPU-Measurement: Counter	iCMC	derive			Interrupt CMC, for device(s): [EXT] CPU-Measurement: Counter
[EXT] HMC FTP Service	iFTP	derive			Interrupt FTP, for device(s): [EXT] HMC FTP Service
[EXT] Warning Track	iWTI	derive			Interrupt WTI, for device(s): [EXT] Warning Track
[I/O] Common I/O Layer Interrupt	iCIO	derive			Interrupt CIO, for device(s): [I/O] Common I/O Layer Interrupt
[I/O] DASD	iDAS	derive			Interrupt DAS, for device(s): [I/O] DASD
[I/O] 3215	iC15	derive			Interrupt C15, for device(s): [I/O] 3215
[I/O] 3270	iC70	derive			Interrupt C70, for device(s): [I/O] 3270
[I/O] Tape	iTAP	derive			Interrupt TAP, for device(s): [I/O] Tape
[I/O] Unit Record Devices	iVMR	derive			Interrupt VMR, for device(s): [I/O] Unit Record Devices
[I/O] LCS	iLCS	derive			Interrupt LCS, for device(s): [I/O] LCS
[I/O] CTC	iCTC	derive			Interrupt CTC, for device(s): [I/O] CTC
[I/O] EADM Subchannel	iADM	derive			Interrupt ADM, for device(s): [I/O] EADM Subchannel
[I/O] CHSC Subchannel	iCSC	derive			Interrupt CSC, for device(s): [I/O] CHSC Subchannel
[I/O] Virtual I/O Devices	iVIR	derive			Interrupt VIR, for device(s): [I/O] Virtual I/O Devices
[AIO] QDIO Adapter Interrupt	iQAI	derive			Interrupt QAI, for device(s): [AIO] QDIO Adapter Interrupt
[AIO] AP Bus	iAPB	derive			Interrupt APB, for device(s): [AIO] AP Bus
[AIO] PCI Floating Interrupt	iPCF	derive			Interrupt PCF, for device(s): [AIO] PCI Floating Interrupt
[AIO] PCI Directed Interrupt	iPCD	derive			Interrupt PCD, for device(s): [AIO] PCI Directed Interrupt
[AIO] MSI Interrupt	iMSI	derive			Interrupt MSI, for device(s): [AIO] MSI Interrupt
[AIO] Virtual I/O Devices AI	iVAI	derive			Interrupt VAI, for device(s): [AIO] Virtual I/O Devices AI
[AIO] GIB Alert	iGAL	derive			Interrupt GAL, for device(s): [AIO] GIB Alert
[NMI] Machine Check	iNMI	derive			Interrupt NMI, for device(s): [NMI] Machine Check
[CPU] CPU Restart	iRST	derive			Interrupt RST, for device(s): [CPU] CPU Restart
I/O	iI_O	derive