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 > > > ================================================================= > To unsubscribe, send mail to [EMAIL PROTECTED] with > the word "unsubscribe" in the message body, e.g., run the command > echo unsubscribe | mail [EMAIL PROTECTED] ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED] ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
