Re: SMP/cc Cluster description
Rik van Riel (riel@conectiva.com.br)
Thu, 6 Dec 2001 12:24:21 -0200 (BRST)
On Wed, 5 Dec 2001, Davide Libenzi wrote:
> On Thu, 6 Dec 2001, Rusty Russell wrote:
>
> > I'd love to say that I can solve this with RCU, but it's vastly non-trivial
> > and I haven't got code, so I'm not going to say that. 8)
>
> Lockless algos could help if we're able to have "good" quiescent point
> inside the kernel. Or better have a good quiescent infrastructure to
> have lockless code to plug in.
Machines get dragged down by _uncontended_ locks, simply
due to cache line ping-pong effects.
regards,
Rik
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