Messages in this thread | | | Subject | Re: [PATCH 2/4, v2] x86: enlightenment for ticket spin locks - Xen implementation | From | Peter Zijlstra <> | Date | Wed, 30 Jun 2010 10:56:20 +0200 |
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On Wed, 2010-06-30 at 09:52 +0100, Jan Beulich wrote: > > why is that a rwlock?, those things are useless. > > Because potentially each CPU's lock gets acquired for reading during > unlock, while only the locking CPU's one needs to be acquired for > writing during lock.
Can you say: scalability nightmare? but then its Xen code so who cares..
/me pretends he never saw it
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