Re: [PATCH v3 0/4] MCS Lock: MCS lock code cleanup and optimizations

[Michel Lespinasse]

On Wed, Nov 6, 2013 at 1:42 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
> Perhaps I'm missing something here, but what is MCS lock and what is the
> value?

Its a kind of queued lock where each waiter spins on a a separate
memory word, instead of having them all spin on the lock's memory
word. This helps with scalability when many waiters queue on the same
lock.

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.
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