UCS BIOS advise

Hello

I saw there were recently downloaded a document with BIOS config of recommendations for UCS in:

http://www.Cisco.com/en/us/prod/collateral/ps10265/ps10281/whitepaper_c07-614438.html

One of the points States: "If you want the best performance at a usage rate of less than 90%, you must disable Intel SpeedStep".

I checked the setting of config by default the BIOS of IntelSpeedStep and mode in UCS B-200 M2/M3, and it is ENABLED.

Taking into account the fact that most production environments should work under 90% of CPU load, I'm trying to understand WHY are these features enabled by default?

Maybe the question should be: is the reccomendations white paper mentioned above partially wrong BIOS settings?

Thank you

It doesn't make sense to me...

By default, we enable speedstep - which allows efficient operation more power.

The book says if you need:

-Improved performance

and

-L' use is<>

You can turn off steedstep (which makes running the processor at full speed/power.)  I think you do not understand what "disabling" speedstep made.  Disabling speedstep makes the CPU to work more hard.  Allowing it allows the clock down.

Kind regards

Robert

Tags: Cisco DataCenter

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