Messages in this thread | | | Date | Sat, 16 Feb 2008 11:39:09 -0800 | From | Arjan van de Ven <> | Subject | Re: include/linux/pcounter.h |
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On Sat, 16 Feb 2008 11:26:18 -0800 Andrew Morton <akpm@linux-foundation.org> wrote:
> > indirect functions calls are everywhere in kernel, network, fs, > > everywhere. > > That doesn't make them fast.
just to emphasize this: an indirect function call is at least as expensive as an atomic operation on x86 cpus.... (if not more)
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