> From: Larry McVoy <lm@bitmover.com>
> Date: Tue, 4 Dec 2001 16:36:46 -0800
>
> OK, so start throwing stones at this. Once we have a memory model that
> works, I'll go through the process model.
>
> What is the difference between your messages and spin locks?
> Both seem to shuffle between cpus anytime anything interesting
> happens.
>
> In the spinlock case, I can thread out the locks in the page cache
> hash table so that the shuffling is reduced. In the message case, I
> always have to talk to someone.
Time ago I read an interesting article that implemented shared memory over
network ( ATM in that case ) reproducing in large scale the
cache/memory/bus computer architecture.
Shared memory on each node was the equivalent of the CPU cache, a "generic
shared memory repository" was the equivalent of the main memory and the
snooping traffic was running on the network.
I think I picked it up from ACM but I can't find it right now.
- Davide
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