Re: [PATCH v7 1/4] spinlock: A new lockref structure for locklessupdate of refcount

[Steven Rostedt]

On Fri, 30 Aug 2013 17:38:47 +0200
Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:


> A Samsung series-5 ultrabook.
> 
> $ grep "model name" /proc/cpuinfo | uniq
> model name      : Intel(R) Core(TM) i5-2467M CPU @ 1.60GHz

I believe the number of CPUs is more important. But as this is an
ultrabook, I doubt that is very high.

Now I know this isn't going to be popular, but I'll suggest it anyway.
What about only implementing the lockref locking when CPUs are greater
than 7, 7 or less will still use the normal optimized spinlocks.

-- Steve
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