Pentium D 3.2 running at 2.4?

**guityler83** · 11-19-2006

I just put together a new machine with an Intel Pentium D 3.2 processor running SuSE 10.1. It works great BUT when I check on the monitor for the processor it shows both cores running at 2400mhz. Has some one else seen this problem or have any suggestions on how to improve the performance. I am new to the wonderful world of Linux so a little guidance would help greatly

**jimmydanny** · 11-19-2006

Yes, there are people that got the same problem. Me! :P
My cpu, an Intel Core 2 Duo 2,13GHz runs at 600-800MHz :O It is terrific to watch all that raw power flee out of that window. While gaming in linux, it is lagging and not bearable at all :S
I can't help you but I can say that we are not the only one with this problem.

**antidrugue** · 11-19-2006

Are you using any kind of CPU frequency management ?

You can verify with :

Code:

/sbin/lsmod | grep -i cpu

Also, check out

Code:

dmesg | grep -i cpu

Also

Code:

cpufreq-info

might help.

**antidrugue** · 11-19-2006

Originally Posted by jimmydanny

My cpu, an Intel Core 2 Duo 2,13GHz runs at 600-800MHz :O It is terrific to watch all that raw power flee out of that window. While gaming in linux, it is lagging and not bearable at all :S

I have the exact same CPU and I'm not experiencing any problem at all. Are you using Suse ?

**Doog** · 11-19-2006

My AMD Athlon 64 3700+ San Diego 2.2GHz 1MB L2 Cache Socket 939 Processor
Runs @ 2.2 GHZ.

Do you actually know what your 3.2 is suppose to run at? Is it 3.2GHz
I have been an AMD guy for awhile so I am not sure what it should be running.

What are you showing in your bios for your CPU?

Is it possible that something is not set right?

Or is there a problem with Suse and dual core?

Are you running your CPU overclocked at all?

I'm sure the forum can help you figure this out.

**guityler83** · 11-19-2006

I'm not overclocking at all the BIOS shows up as 3.2, and this is what I get when I typed in cpufreq-info

Code:

cpufreq-info
cpufrequtils 0.4: cpufreq-info (C) Dominik Brodowski 2004
Report errors and bugs to linux@brodo.de, please.
analyzing CPU 0:
  driver: centrino
  CPUs which need to switch frequency at the same time: 0
  hardware limits: 2.40 GHz - 3.20 GHz
  available frequency steps: 3.20 GHz, 2.40 GHz
  available cpufreq governors: ondemand, userspace, powersave, performance
  current policy: frequency should be within 2.40 GHz and 3.20 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 2.40 GHz.
analyzing CPU 1:
  driver: centrino
  CPUs which need to switch frequency at the same time: 1
  hardware limits: 2.40 GHz - 3.20 GHz
  available frequency steps: 3.20 GHz, 2.40 GHz
  available cpufreq governors: ondemand, userspace, powersave, performance
  current policy: frequency should be within 2.40 GHz and 3.20 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 2.40 GHz.

**antidrugue** · 11-19-2006

I think the output of cpufreq-info says it all.

Everything seems to be running just like it should. The 2 cores are detected. CPU frequency management is enabled and controller by the speedstep_centrino module.

The policy you are using (which is usually the default one) is on_demand, which means that the CPU normally operates at 2.4 Ghz and can go up to 3.2 Ghz, depending on the work load.

That is perfectly normal. You are not loosing any processing power here. The CPU can change frequency almost instantaneously.

**Doog** · 11-19-2006

Thanks I learned something.

**guityler83** · 11-19-2006

Originally Posted by antidrugue

I think the output of cpufreq-info says it all.

Everything seems to be running just like it should. The 2 cores are detected. CPU frequency management is enabled and controller by the speedstep_centrino module.

The policy you are using (which is usually the default one) is on_demand, which means that the CPU normally operates at 2.4 Ghz and can go up to 3.2 Ghz, depending on the work load.

That is perfectly normal. You are not loosing any processing power here. The CPU can change frequency almost instantaneously.

Thank you! you put my worries at ease, and I can now read the output more clearly

**bilisiz** · 11-25-2006

Originally Posted by antidrugue

The 2 cores are detected..

Hi! I am also very new to Linux and having an dual core processor running Suse10.1. While on the subject, could you please tell me if my OS detects the second core. Below is what it says:

analyzing CPU 0:
driver: centrino
CPUs which need to switch frequency at the same time: 0
hardware limits: 2.40 GHz - 3.40 GHz
available frequency steps: 3.40 GHz, 2.40 GHz
available cpufreq governors: ondemand, userspace, powersave, performance
current policy: frequency should be within 2.40 GHz and 3.40 GHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 2.40 GHz.

There is no "CPU 1" being analyzed!!?

Thank you.

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