Processor Speed Question

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Processor Speed Question

Postby gordon.cooke on Fri Feb 12, 2010 5:05 pm

Ive been using Mint almost exclusively for a few months now and Ive been doing very well at install, software etc. The linux mint forums are great! But some of the inner workings of hardware is where Im not so good.

I have an Averatec 2573 laptop with an AMD Turion 64 X2 TL-60 dual core processor. Im running Mint 8 64 bit with kernel updated to 2.6.31-19-generic

Last night I checked out the System Profiler and Benchmark for the first time. Last night it showed my processor (both cores) with a frequency of 800 MHz. Today I look at it and it shows 1600 MHz.

I know that modern processors (especially mobile types) have power options to change the speed in order to save energy when needed. In both cases I was plugged into wall power. And I havent changed any settings anywhere.

So two questions:
1) Why would the processor speed have changed if I didnt make any changes? Only difference I can think of is that right now Im downloading an iso and last night was just general web surfing.
2) How do I get the processor to run at its full 2000 MHz??

Any pointers to a good link or topic with more info about managing the cpu speed would be greatly appreciated.
------------------------------------------------------------------------
Mint 13 64bit Cinnamon
Asus U56E Laptop, Core i5-2410M, Intel graphics, 6GB RAM
Mint 9 64bit
Averatec 2573 Laptop, AMD Turion 64x2, ATI Graphics, Atheros wireless, 3GB RAM
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Re: Processor Speed Question

Postby Koninator on Fri Feb 12, 2010 5:23 pm

Go into BIOS and Disable Intel SpeedStep.
http://en.wikipedia.org/wiki/SpeedStep
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Re: Processor Speed Question

Postby gordon.cooke on Sat Feb 13, 2010 3:41 pm

OK, so in BIOS I can disable this feature to get the CPU to run at full speed all the time.

Is there anywhere within Linux to control this throttling? I think I want to leave it enabled because I dont see any need to run the CPU at full all the time (too much heat). But if I wanted to force it up how do I do that? Or how do I tune the settings the computer uses to set the CPU speed?
------------------------------------------------------------------------
Mint 13 64bit Cinnamon
Asus U56E Laptop, Core i5-2410M, Intel graphics, 6GB RAM
Mint 9 64bit
Averatec 2573 Laptop, AMD Turion 64x2, ATI Graphics, Atheros wireless, 3GB RAM
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gordon.cooke
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Re: Processor Speed Question

Postby richyrich on Sat Feb 13, 2010 4:04 pm

The time it took you to write that reply, you could have found the answer by using Google . . . what if you right-clicked on your panel -> add to panel, and looked at the applets already provided. (Hint - It's called cpu-freq-utils in Synaptic, and included with the already installed gnome-applets) . . .
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Re: Processor Speed Question

Postby tonyric on Thu Feb 18, 2010 11:37 am

Condescending post aside, richyrich's post is right on.

This is one of the ways that Gnome has decided to dumb down it's system to the point that simple things such as this are more difficult than they need to be.
Thinkpad W520 - 15.6" 1920x1080 - 2.3Ghz Intel Core I7 - 4X4GB PC3-1600 RAM - Crucial 512GB M4 SSD - Toshiba 1TB 5400RPM - NVIDIA 1000M with 1GB DDR3 - Intel 6300 802.11AGN, Bluetooth - Linux Mint - 10 second boot; priceless!
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