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 |
| floppy |
i6 |
derive |
|
|
Interrupt 6, for device(s): floppy |
| rtc |
i8 |
derive |
|
|
Interrupt 8, for device(s): rtc |
| acpi |
i9 |
derive |
|
|
Interrupt 9, for device(s): acpi |
| uhci_hcd:usb1, virtio3 |
i11 |
derive |
|
|
Interrupt 11, for device(s): uhci_hcd:usb1, virtio3 |
| i8042 |
i12 |
derive |
|
|
Interrupt 12, for device(s): i8042 |
| ide1 |
i15 |
derive |
|
|
Interrupt 15, for device(s): ide1 |
| virtio2-config |
i177 |
derive |
|
|
Interrupt 177, for device(s): virtio2-config |
| virtio2-requests |
i185 |
derive |
|
|
Interrupt 185, for device(s): virtio2-requests |
| virtio0-config |
i193 |
derive |
|
|
Interrupt 193, for device(s): virtio0-config |
| virtio0-input |
i201 |
derive |
|
|
Interrupt 201, for device(s): virtio0-input |
| virtio0-output |
i209 |
derive |
|
|
Interrupt 209, for device(s): virtio0-output |
| virtio1-config |
i217 |
derive |
|
|
Interrupt 217, for device(s): virtio1-config |
| virtio1-virtqueues |
i225 |
derive |
|
|
Interrupt 225, for device(s): virtio1-virtqueues |
| NMI |
iNMI |
derive |
|
|
Nonmaskable interrupt. Either 0 or quite high. If it's normaly 0 then just one NMI will often mark some hardware failure. |
| LOC |
iLOC |
derive |
|
|
Local (pr. CPU core) APIC timer interrupt. Until 2.6.21 normaly 250 or 1000 pr second. On modern 'tickless' kernels it more or less reflects how busy the machine is. |
| ERR |
iERR |
derive |
|
|
|
| MIS |
iMIS |
derive |
|
|
|
