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SubjectRe: [Openipmi-developer] [PATCH 3/4] IPMI: convert locked counters to atomics
Matt Domsch wrote:
> On Thu, Feb 14, 2008 at 12:30:51PM -0600, Corey Minyard wrote:
>
>> From: Konstantin Baydarov <kbaidarov@ru.mvista.com>
>>
>> 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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