Is there any way I can verify this?
[EMAIL PROTECTED] wrote:
As far as I remember, even P-II has Intel speed step extension, so it's most likely that your P4 also support it.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lior Okman Sent: Tuesday, January 20, 2004 11:18 AM Cc: [EMAIL PROTECTED] Subject: Re: CPU Frequency
That's what I though at first, but then I noticed that /proc/cpuinfo and x86info don't identify the CPU as a mobile CPU. I found listing of the /proc/cpuinfo information for mobile pentium 4 cpus and the always list themselves as "Mobile Intel(R) Pentium(R)" whereas my cpu does not.
Thanks, Lior
[EMAIL PROTECTED] wrote:
Hi, If I'm not mistaken, mobile CPU's can reduce their speed with Intel Speed step feature... So if this is the case, the CPU slows itself in order to preserve power.
Cheers, Ohad
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lior Okman Sent: Tuesday, January 20, 2004 10:46 AM To: Linux-il Mailing List Subject: CPU Frequency
Hi all,
I recently bought a new laptop, and after I installed Linux on it, I noticed a strange inconsistency with the cpu. The CPU is supposed to be a Pentium 4 2.66Ghz, but Linux identifies it as a Pentium 4 2.66 GHz that operates at 1.6GHz:
The following is my /proc/cpuinfo: processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Genuine Intel(R) CPU 2.66GHz stepping : 9 cpu MHz : 1594.431 <------------ cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid bogomips : 3112.96
I also checked with x86info, and got much the same results.
I tried to search the web for relevant information, and I'm afraid I came up blank.
Is this normal? Some kind of frequency scaling thing in order to save power? The results I got above were made while the laptop was connected to the electricity. This is also consistent across different kernel versions. I tries 2.4.23 and 2.6.0 and 2.6.1 and got exactly the same results each time.
Thanks,
Lior Okman
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