Re: [Openipmi-developer] [PATCH 3/4] IPMI: convert locked counters toatomics

[Corey Minyard]

Matt Domsch wrote:
> On Thu, Feb 14, 2008 at 12:30:51PM -0600, Corey Minyard wrote:
>   
> > From: Konstantin Baydarov <kbaidarov@xxxxxxxxxxxxx>
> >
> > Atomics are a lot more efficient and neat than using a lock.
> >     
>
> per_cpu variables are a lot more efficient and neat than using locks
> for simple statistics.  no cache line bouncing to increment the
> counter.  Are these read so often that atomics are really better?
>   
I agree, I'll put this in the plan for the future.  I don't have time to 
do it at this point, but the changes made in these patches should make 
it easy to change in the future.

Thanks,

-corey
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