On which OS is Oracle database performance better, on AIX or OEL?

Question

Oracle

Good day, I'm interested in personal experience, has anyone compared the performance of Oracle Database on AIX (Power) and Oracle Enterprise Linux? Please recommend articles on this topic. Logically, Power should be faster, because. RISC is at the heart of processors (assuming the characteristics of the servers are roughly comparable, as far as possible). Or has anyone tested it?

Answer 1

Unfortunately with AIX almost did not work. But at one time, at one of my previous jobs, I compared:
HPUX 11.23, 8 * Itanium, EVA 3000 and RHEL, 4 * dual-core Xeon, EVA 3000. The servers showed approximately the same performance.
I also compared:
Sun Fire 240, Solaris 8, 2*SPARC and HP9000, HPUX, 2*PARISC and HP585, 2*AMD Phenom 64. There were different arrays on the servers, the “frequency” won, that is, AMD.
In general, my advice:
1. Price, but be guided not by the cost of the server, but by the cost of the DBMS license, for multi-core x86 Oracle had a 50% discount on cores. But in December of this year they changed the licensing policy until the new prices are read.
2. Disk array, with the growth of the database, you will rest not on the processor, but on the input / output.
3. The ability to quickly replace, if the enterprise is not large and does not have the opportunity to buy a cluster on non-x86, and the database needs to work 24 * 7 or close to volumes, then when using x86 servers you will have the opportunity to raise standby, or make a clone server and in case of failure, quickly switch the array, on "any" personal computer. What is impossible or limited is possible with other processors.