Re: [PATCH v3 1/2] qspinlock: Introducing a 4-byte queue spinlockimplementation

[Peter Zijlstra]

On Fri, Jan 31, 2014 at 02:24:33PM -0500, Waiman Long wrote:
> 
> Light contention is the only case where the qspinlock may not perform as
> good as the ticket spinlock. I know this is the most common case. However, I
> would argue that the slowdown, if any, will not be really noticeable. This
> is what I will try to find out.

Please also explain why things are slower/faster. Thomas tried to get
you to do so a few months back, but you kept deflecting.
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