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Incorrect cpu speed? -Fedora 17

asked 2012-06-06 02:05:46 -0500

Nikhil Damle gravatar image

updated 2014-09-28 08:47:37 -0500

mether gravatar image

I have recently installed 64-bit Fedora-17. Previously i was using Ubuntu.

Problem: My Cpu is Intel i5-2500K at base frequency 3.3 frequency. It's of 4 cores. When i invoke command cat /proc/cpuinfo | grep MHz , all of the 4 cores frequency is displayed as 1600 MHz. I'm not getting what is the problem.

Any help is appreciated.

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can you provide the processor series of core i5,are you using the 2500 Mobile Processor Series or 2500 Desktop Processor Series

Akshay gravatar imageAkshay ( 2012-06-08 03:55:40 -0500 )edit

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answered 2012-06-07 10:38:05 -0500

You might want to check the cpu speed while the machine is under load. If I remember correctly, the cpu ramps down power consumption to the minimum unless there load is high enough to warrant the increased power consumption to avoid noticeably latency. I think this is all about improving the lifetime of the processor. Temperature cycling the cpu is not good either, but in general the long the cpu stays hot the shorter its life will be. If you run a singly threaded application for any significant period of time, you will notice that the cpu (or os?) will move the load from one core to another. ... at least that is what happens on my core i7 1.6 GHz.

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Asked: 2012-06-06 02:05:46 -0500

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Last updated: Jun 07 '12