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Watch Live Interrupts

Jun 22, 2009  By Chilaka Kumar
 in

To see the interrupts occurring on your system, run the command:

# watch -n1 "cat /proc/interrupts"

           CPU0       CPU1
 0:         330          0   IO-APIC-edge      timer
 1:       11336          0   IO-APIC-edge      i8042
 4:           2          0   IO-APIC-edge
 6:           3          0   IO-APIC-edge      floppy
 ...
NMI:          0          0   Non-maskable interrupts
LOC:    5806923    6239132   Local timer interrupts
 ...

The watch command executes another command periodically, in this case "cat /proc/interrups". The -n1 option tells watch to execute the command every second.

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Should have at least defined

Anonymous's picture
Submitted by Anonymous (not verified) on Mon, 06/29/2009 - 10:41.

Should have at least defined each definition of all the interrupts and what they correlate to. There's no interrupts man page either. Which means it's slightly useless for the average user. Maybe I'm look in the wrong place for a man page, I don't know.

"-d" option.

vinit dilip dhatrak's picture
Submitted by vinit dilip dhatrak (not verified) on Mon, 06/29/2009 - 04:24.

Try -d option of watch command for fancy output with highlights.

e.g.
# watch -d -n1 "cat /proc/interrupts"

saves a lot of time..

kasi's picture
Submitted by kasi on Thu, 06/25/2009 - 02:25.

this command will save a lot of time while we have to run a single command many times.
Thanks.

cool command

Anonymous's picture
Submitted by Anonymous (not verified) on Mon, 06/22/2009 - 21:53.

I didn't know about the 'watch' command. Sure beats doing a loop with sleep :).

Thanks for the tip!