From: Rick Jones <[EMAIL PROTECTED]>
Date: Wed, 06 Jun 2007 16:48:59 -0700

>   > RX queues - yes, I can see;  TX queues, it doesnt make sense to put
> > different rings on different CPUs.
> 
> To what extent might that preclude some cachelines bouncing hither and 
> yon between the CPUs?

I think per-TX-queue locking takes locality as another advantage.
You only touch the TX descriptors for queue N, rather than a single
globally shared one.

Same goes for RX.
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