Messages in this thread | | | Date | Sat, 16 Feb 2008 10:44:34 -0600 | From | Matt Domsch <> | Subject | Re: [Openipmi-developer] [PATCH 3/4] IPMI: convert locked counters to atomics |
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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?
Thanks, Matt
-- Matt Domsch Linux Technology Strategist, Dell Office of the CTO linux.dell.com & www.dell.com/linux
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