I've seen there's recently been uploaded a document with BIOS config reccomendations for UCS in:
One of the points states: "if you want the best performance at a utilization rate of less than 90 percent, you should disable Intel SpeedStep".
I've checked the Default BIOS config setting of IntelSpeedStep and TurboBoost in UCS B-200 M2/M3, and it is ENABLED.
Taking into account that most of the production environments should run under 90% of CPU load, I'm trying to figure out WHY are these features enabled by default???
Or maybe the question should be: is the BIOS Settings reccomendations white paper mentioned above partially wrong?
It makes sense to me...
By default we enable speedstep - which allows for a more power effecient operation.
The paper says if you require:
-Utilization is <90%
Then you can disable steedstep (which makes the CPU run at full speed/power. I think you're not understanding what "disabling" speedstep does. Disabling speedstep makes the CPU work harder. Enabling it allows it to clock DOWN.