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Zack Zatkin-Gold dd537b3382 Fix telegraf example arguments (#2788) 
Many of the examples provided within documentation are using a single
dash for the command line arguments, but the telegraf executable
explicitly has two dashes.

There are also some inconsistencies with the ordering of the command
line argument examples.  I've ordered them so that the examples will
show: config, config-directory, input-filter, test
 		2017-05-12 15:22:29 -07:00
..
README.md Fix telegraf example arguments (#2788) 2017-05-12 15:22:29 -07:00
interrupts.go
…
interrupts_test.go
…

README.md

Interrupts Input Plugin

The interrupts plugin gathers metrics about IRQs from /proc/interrupts and /proc/softirqs.

Configuration

[[inputs.interrupts]]
  ## To filter which IRQs to collect, make use of tagpass / tagdrop, i.e.
  # [inputs.interrupts.tagdrop]
    # irq = [ "NET_RX", "TASKLET" ]

Measurements

There are two measurements reported by this plugin.

  • interrupts gathers metrics from the /proc/interrupts file
  • soft_interrupts gathers metrics from the /proc/softirqs file

Fields

  • CPUx: the amount of interrupts for the IRQ handled by that CPU
  • total: total amount of interrupts for all CPUs

Tags

  • irq: the IRQ
  • type: the type of interrupt
  • device: the name of the device that is located at that IRQ

Example Output

./telegraf --config ~/interrupts_config.conf --test
* Plugin: inputs.interrupts, Collection 1
> interrupts,irq=0,type=IO-APIC,device=2-edge\ timer,host=hostname CPU0=23i,total=23i 1489346531000000000
> interrupts,irq=1,host=hostname,type=IO-APIC,device=1-edge\ i8042 CPU0=9i,total=9i 1489346531000000000
> interrupts,irq=30,type=PCI-MSI,device=65537-edge\ virtio1-input.0,host=hostname CPU0=1i,total=1i 1489346531000000000
> soft_interrupts,irq=NET_RX,host=hostname CPU0=280879i,total=280879i 1489346531000000000