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
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 ;)