re: Oracle Sparc T5 Can't Make Sun Rise
Yes, that is true. Oracle has published 17 world record benchmarks, many of them based on independent benchmarks like SPEC CPU2006, TPC-C, SAP, SPECjbb2013 and SPECjEnterprise2010. Exadata and Exalogic are x86 based as you say but Oracle does have the equivalent to both of these systems in one Engineered system called SPARC SuperCluster which is currently based on SPARC T4. SPARC SuperCluster is as fast as Exadata PLUS Exalogic in one system so clearly theres a performance difference. Clearly now that SPARC T5 and SPARC M5 is out, you'll see more Engineered system related updates based on the latest SPARC processors in the future. As for Oracles software licensing, Xeon and SPARC currently have the same multiplier of .5x while IBM Power and Itanium are 1x multiplier. Why the difference? It has nothing to do with performance. If that were the case, Itanium would have to be a .001 multiplier-its really bad on performance these days. No, the reason for the multiplier is because Oracle wants customers to run Oracle software on Oracle HW-both Xeon (from Oracle) and SPARC (from Oracle and Fujitsu). If customers still want to run Power or Itanium, sure its supported, but you'll pay more. IBM has a similar strategy with their SW where they use PVUs and in certain circumstances, it requires fewer PVUs to run on Power7+ than equivalent Xeon or SPARC servers. And by the way, theres still a lot of software out there (like SAP) that have per user licensing so ultimately, it comes down to $/Performance of hardware.