[Beowulf] cpu information

bala rb at hcl.in
Sat Nov 26 00:04:25 EST 2005


Dear all,
I am bechmarking a server with intel xeon DP 3.6GHZ on a Brandon2 mother 
board. I wanted to check the performance of the machine with a single 
processor and i removed a processor leaving the setup with a single Xeon 
(Nocona)3.6 Ghz DP processor on board.

While running the intel optimised linpack benchmark on this setup to my 
surprise the result had a processor information with 2.72 Ghz. When i 
checked the /proc/cpuinfo in RHAS 4 update platform i was using the same 
frequency was available.

But the BIOS information shows a single processor with 3600Ghz. HT is 
enabled.

With linux both smp kernel and ordinary up kernel are showing the same 
cpu speed.

What could be the reason for this?

Regards,

Balamurugan. R

-- 
"Please note our changed Email Address"

Regards,
Balamurugan. R
R&D,
HCL Infosystems Ltd.,
Pondicherry,
India.

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