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Cavium Thunder Rattles Xeon

48-core SoCs gun for mainstream servers
6/3/2014 03:00 AM EDT
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servernut
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Re: 48 core power would be very high
servernut   6/4/2014 2:23:07 AM
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@Rick. Cavium's Octeon designs are not out-of-order but in-order. Thunder is likely to be the same. All other server CPUs - Xeons, Opterons, even X-Gene are fully out-of-order machines.

 

Actually XGene from appliedmicro is completely missing from your post. They showed a mini-datacenter running at Computex this week. Any reason, you are not covering them? They seem to be shipping already. From the specs they seem to have everything that thunder is claiming and a few years ahead.

What are your thoughts on XGene?

rick merritt
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Re: 48 core power would be very high
rick merritt   6/4/2014 12:40:16 AM
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@Servernut and/or Hank: Can one of you briefly explian what the Octeon OOO-like scheme is and how it is different in performance to full OOO?

Perhpas B'com's promise of a full OOO quad issue FinFET-based processor will be significantrly more powerful...AMD';s planned K-12, too. But those are likely 2016 chips.

rick merritt
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Software for ARM servers
rick merritt   6/4/2014 12:29:23 AM
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Thx all for your good points on the chips.

Now I'd like to hear some reality about where we are at and need to be at in server software for ARM if this borader initiative of which Cavium is just one part is going to get traction. Details, please!

rick merritt
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Re: We Need Data
rick merritt   6/4/2014 12:27:33 AM
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@Hank and others: Good points. We need hard performance numbers. And with no first silicon back yet there could still be significant issues getting a product out.

krisi
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Re: We Need Data
krisi   6/3/2014 11:02:18 PM
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Well, if you have no hardware to show you send your marketing guys with powerpoint to fight ;-)

DaisyCSage
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Re: ASSP not Server SoC?
DaisyCSage   6/3/2014 6:10:38 PM
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TarraTarra!
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Re: ASSP not Server SoC?
TarraTarra!   6/3/2014 5:45:41 PM
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Rick,

"There are four families of products under the Thunder brand. One is specifically targeted at servers. Others target storage and security appliances and networking."

 

This is what does not make sense. Volume servers in the datacenter run all those applications today. E.g the same server could run map/reduce (hadoop) and also run generic web-tier applications. It appears that cavium is proposing to fragment the datacenter and have the operators chose between their different offerings and convert volume severs into appliances that can only run specific appliances?? That is a tall order. 

servernut
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Re: 48 core power would be very high
servernut   6/3/2014 2:55:17 PM
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@Servernut: Going back to my notes I see Cavium left itself some quibble room, saying its core "supports optimized OOO."

 


Btw, Rick, what other points in your article are inaccurate "quibbles-room" from Cavium that you are merely repeating? Been reading your articles for sometime and you are usually good about sniffing out marketing FUD.

 

 

servernut
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Re: We Need Data
servernut   6/3/2014 2:51:58 PM
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@Hank, Agree. This is marketing FUD at its best. The silicon is nowhere in sight and will be in production in 2016. It is very easy to make claims with power-point 2 years out.

servernut
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Re: 48 core power would be very high
servernut   6/3/2014 2:37:58 PM
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"Re power, as reported they said the products ranges from 20-95W including the Ethernet ports, so well below Xeon."

 


Really?? Xeon E3 power is in the 40W range, E5 is in the 60W range. Even if you factor in the additional components. How is it lower than Xeon?

 

On the OOO, yes that is a very wide quibble room :) Octeon has in-order multi-issue and to go to OOO is not that easy. I would imagine that is a convinent error on their part.

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