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10Gb ethernet Nebula server

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10Gb ethernet Nebula server

Postby musicgreator » Wed Feb 15, 2012 4:25 pm

Has anyone ever tried a connection to a nebula server over 10Gb ethernet or Infiniband? I wonder what the performance would be like and if there would be any CPU usage on the host. Are there inexpensive alternatives? What is being developed right now? How about thunderbolt?
Last edited by musicgreator on Wed Feb 15, 2012 9:26 pm, edited 1 time in total.
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Re: 10Gb ethernet Nebula server

Postby enriquesilveti » Wed Feb 15, 2012 8:21 pm

AudioDante reports 512 channel 24/48 in a 1 GB LAN with CAT6 cable. Than means 256 channel in each direction. So we can think in a x10 improvement with CAT7 cables.
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Re: 10Gb ethernet Nebula server

Postby musicgreator » Wed Feb 15, 2012 9:18 pm

I didn't know, that cat7 makes a difference. My problem is, that on my mac, my cpu gets already maxed out when i run about 30 Nebula Instances connected to tow PCs running nebula server. I believe, that a higher bandwidth would change that, is that right?? In general i crave for getting the most out of nebula and i'm spending a lot of time finding ways to be able to load as many instances as possible. PC seems to handle that better. What else can i do? Will a better NIC with CPU offload solve that?
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Re: 10Gb ethernet Nebula server

Postby musicgreator » Wed Feb 15, 2012 9:27 pm

enriquesilveti wrote:AudioDante reports 512 channel 24/48 in a 1 GB LAN with CAT6 cable. Than means 256 channel in each direction. So we can think in a x10 improvement with CAT7 cables.

So he runs 128 nebula instances connected to a server?
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Re: 10Gb ethernet Nebula server

Postby himhui » Thu Feb 16, 2012 7:20 am

I think it'll be huge different to loop the chain with large latency plugins

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Re: 10Gb ethernet Nebula server

Postby musicgreator » Thu Feb 16, 2012 10:50 am

himhui wrote:I think it'll be huge different to loop the chain with large latency plugins

...

What do you mean?
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Re: 10Gb ethernet Nebula server

Postby musicgreator » Thu Feb 16, 2012 11:11 am

What technology will allow to load a good number of nebulas in the future without taxing the host cpu? Will this only be possible with faster computers? Does Cuda use cpu at all?
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Re: 10Gb ethernet Nebula server

Postby enriquesilveti » Thu Feb 16, 2012 11:16 am

So he runs 128 nebula instances connected to a server?


None at all this numbers are in theory, I don't know if a CPU can handle 128 Nebulas. In addition the LAN connection should be a close loop due a switch can decrease the bandwidth due others LAN connection and traffic. I think a around 32 to 64 Nebulas at 32/96 is a good target.
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Re: 10Gb ethernet Nebula server

Postby musicgreator » Thu Feb 16, 2012 11:41 am

enriquesilveti wrote:
So he runs 128 nebula instances connected to a server?


None at all this numbers are in theory, I don't know if a CPU can handle 128 Nebulas. In addition the LAN connection should be a close loop due a switch can decrease the bandwidth due others LAN connection and traffic. I think a around 32 to 64 Nebulas at 32/96 is a good target.

I use direct connection via crossover cat-6. I even use Jumbo Packets of 9000 bytes. But before i can fully utilize the bandwidth, my client cpu gets overloaded (by client i mean the mac which runs the daw and is connected to a pc running nebula server, i might called it host in the past). So i can connect about 28 nebula to a server. My server PC could handle about 80 to 90 nebulas. So there is something going on with the connection that taxes the client CPU.
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Re: 10Gb ethernet Nebula server

Postby dpclarkson » Thu Feb 16, 2012 2:24 pm

musicgreator, what are the specs of your server-pc?
I'm thinking about getting a pc to hook up as a server
for my mac pro in a not so distant future.
Would be great to be able to run about 50 extra
instances per server without taxing the mac.
What would it cost me to buy a server with
enough cpu, ram and bandwith to run about 50-64
instances?
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