qcmadness

http://www.anandtech.com/show/6757/calxedas-arm-server-tested/13

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So how much does this Boston Viridis server cost? $20,000 is the official price for one Boston Viridis with 24 nodes at 1.4GHz and 96GB of RAM. That is simply very expensive. A Dell R720 with dual 10 gigabit, 96GB of RAM and two Xeons E5-L2650L is in the $8000 range; you could easily buy two Dell R720 and double your performance. The higher power bill of the Xeon E5 servers is that case hardly an issue, unless you are very power constrained. However, these systems are targeted at larger deployments.

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Let's be clear: most applications still run better on the Xeon E5. Our CPU benchmarks clearly indicate that any application that accesses the memory frequently or that needs high per thread integer processing power will run better on the Xeon E5. Compiling and installing software simply feels so much faster on the Xeon E5, there is no need to benchmark.

There's more: if your performance requirements are higher than what a quad-core Cortex-A9 can deliver, the Xeon E5 is a lot more flexible and a better choice in most cases. Scaling up is after all a lot easier than using load balancers and other complex software or hardware to scale out. Also, the management software of the Boston Viridis does the job, but Dell's DRAC, HP ILO, and Supermicro's IM are more user friendly.

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So on the one hand, no, the current Calxeda servers are no Intel Xeon killers (yet). However, we feel that the Calxeda's ECX-1000 server node is revolutionary technology. When we ran 16 VMs (instead of 24), the dual low power Xeon was capable of achieving the same performance per VM as the Calxeda server nodes. That this 24 node system could offer 50% more throughput at 10% lower power than one of the best Xeon machines available was honestly surprising to us. 8W at the wall per server node—exactly what Calxeda claimed—is nothing short of remarkable, because it means that the 48 server node machine, which is also available, is even more efficient.

但係有VM既話, 不如夾埋用一部勁server好過

dom

AMD 整 ARM based Opteron