Arch Linux

This version is an updated version of itop written in perl.

itop
====

Interrupts 'top-like' utility for Linux

initial idea: http://et.redhat.com/~jmh/tools/xen/itop

Forked it to make it support more CPUs (up to 24 tested)

Modified by Mitch Williams <mitch.a.williams@intel.com> to enable filtering,
user-specified timing interval, and to print the full interrupt name (instead
of the interrupt type and a tiny bit of the name).

== Usage
itop [-a|-t|-f <string>|-i <interval>]

-a : force display ALL CPUs (caution if you have many CPUs and a narrow screen) + TOTAL
-t : DON'T display ALL CPUs, just the TOTAL

Default: display ALL CPUs + TOTAL (unless CPUs > 8, then just display the TOTAL)

-f <string>: only show interrupts that match on the specified string
Default: display all interrupts
-i <interval>: sample every <interval> seconds. Can be fractional.
Default: sample and display every second.
Note: specifying very short intervals without filters may cause display flickering.

Example:
$ itop
- Displays all interrupts, updating once per second.

$ itop -f eth0
- Only displays interrupts related to eth0, once per second

$ itop -f ahci -n 5
- Only display interrupts owned by the ahci driver, every five seconds

$ itop -f ixgbe -n 0.1
- Only display interrups owned by the ixgbe driver, ten times per second