Messages in this thread | | | From | (Larry McVoy) | Subject | Re: Sharing RAM over the 'net (was Re: Process Migration on Linux - Impossible?) | Date | Thu, 02 Oct 1997 13:40:20 -0700 |
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: At 01:09 AM 10/3/97 +1000, Darren Reed wrote: : >So why can't you share the memory ? : > : >Something pmap calling pmap on another box, over the network, and so on. : > : >Of course this would be real slow over ethernet, but what about if you : >have a host which has multiple cpu's with dedicated memory for each ? : > : >I think in those sort of instances sharing memory over some sort of : >"network interface" is an interesting idea and process/thread migration : >could be very sexy. But perhaps Linux cannot support that without huge : >rewrites ? : : Cellular IRIX does exactly this. The big problem is, if one CPU fails or : one network link fails, you (potentially) lose every single process on the : network of systems.
Cellular IRIX doesn't exist in production form.
The "network" under Cellualar IRIX is 800MB/sec, full duplex, with 100ns latencies per hop.
Even with those sorts of numbers, IRIX is having a tough time scaling on that machine.
It's ill advised to go after this w/ regular networks.
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