Disable Performance monitoring on F18

[Kevin Wilson]

Hello,
When I run cat "/proc/interrupts" I see:
PMI:        111        120   Performance monitoring interrupts

and these counters keep advancing.

Are these Performance monitoring interrupts a result of some service/daemon ?

Is there a way to disable Performance monitoring interrupts by some
sysfs entry ?

rgs,
Kevin

[Michael Cronenworth]

On Thu Mar 14 2013 01:15:38 AM CDT, Kevin Wilson  wrote:
> Hello,
> When I run cat "/proc/interrupts" I see:
> PMI:               111               120     Performance monitoring interrupts
>
> and these counters keep advancing.
>
> Are these Performance monitoring interrupts a result of some
> service/daemon ?

They come from NMI. They are harmless.
> Is there a way to disable Performance monitoring interrupts by some
> sysfs entry ?

If you really want to turn off NMI then you can add the following kernel command line argument: nmi_watchdog=0