I`m running a database benchmark (Tpc-h), and running a same SQL query several times. To my surprise, the time spent has a significant difference, even though it is the same query, reaching up to 40% or 50% of the difference between one execution and another.
I'm using a server HP MODEL: Proliant ML110-G9 Processador: (1) Intel Xeon E5-1603v3 (2.8GHz/4-core/10MB/140W). In this way I did according to the UEFI(BIOS) manual (page 65), setting "Power Management" to "Maximum Performance". https://support.hpe.com/hpsc/doc/public/display?docId=c04398276
I re-executed the benchmark, but it did not work, because the time spent has a significant difference yet. My question is if you have any additional settings that I have to do in the BIOS yet? Another question is if I have to configure the "Performance" mode also in the Operating System. I use Debian 8 (Jessie).