You have both memory channels populated, and with the fastest supported RAM, and yet it's showing only 12GB/s? I'm with you: that's a bit disappointing. I guess I shouldn't be disappointed given the wattage, but I would have hoped/expected to see at least 20GB/s given that Xeon E5s v2s are pushing 100GB/s with four memory channels. 25GB/s would represent 1/4 the memory bandwidth, nicely in proportion with the roughly 1/4 the CPU grunt of a Xeon E5 v2.I think $600 is going to end up high.
I agree on that cluster idea but 1U is expensive to cool since you have small fans.
Here is the lspci -vvv output for one of the NICs:
dba - I ran pts/stream triad
- Single L5520: 25,720
- E3-1230 V1: 13,227
- Avoton C2750 12,063
- AMD Opteron 3380: 10,868
- Atom S1260: 1,759
- Raspberry Pi: 293
The E3 and Avoton numbers seem to be half of what I would expect. Makes me a bit bummed that I standardized on the pts benchmark.