[RFC] implement QUEUED spinlocks on powerpc

Benjamin Herrenschmidt benh at kernel.crashing.org
Thu Feb 2 15:42:13 AEDT 2017


On Wed, 2017-02-01 at 20:40 -0800, Eric Dumazet wrote:
> A typical benchmark would be to use 200 concurrent netperf -t TCP_RR,
> through a single qdisc (protected by a spinlock)
> 
> Non ticket/queued spinlocks behave quite bad in this scenario.
> 
> I can try this next week if you want.

That would be great !

Cheers,
Ben.



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