UltraSPARC T2+ Scaling
Stefan Hinker looks to an interesting fact in regard of our new UltraSPARC T2+ systems:They are scaling really well.
| Benchmark | T5x20 |
T5x40 |
Skalierung |
| SPECint_rate2006 | 78.5 | 157 | x2 |
| SPECfp_rate2006 | 62.3 | 119 | x1.91 |
| SAP SD 2-tier | 2,175 | 4,170 | x1.91 |
| Lotus R6 iNotes | 43,000 | 65,000 | x1.51 |
| SPECjbb2005 | 192,055 | 373,405 | x1.94 |
Another interesting fact: From view of the operating system this was a jump from 64 CPUs to 128 CPUs, thus the results are even more impressing. Additionally this should stop those comments about the fact, that the UltraSPARC T2 had two memory controllers more than the T2+. You don´t reach a scaling factor near of two in SAP with a proc starving for memory bandwidth.
BTW: I really wait for public results of our quad-socket system ;)