CentOS - Dec 2005 - compaq r4000 /proc/cpuinfo reports 997 and should be 2400

Hi

I have a compaq R4000 with the 2.4GIG AMD 64 bit. 4000+ rated.
proc cpuinfo reports

cpu Mhz as 997.481

Do I have to run the 64 bit version to have things run correctly?
I just have the normal 4.2 loaded at this time.

The laptop seems slow for 4000+ as reflected by the cpu Mhz also.

Any thoughts on running the 32 bit version of 4.2 vs the 64 bit version 
of 4.2?

Jerry

Jerry Geis wrote:
>Hi
>
>I have a compaq R4000 with the 2.4GIG AMD 64 bit. 4000+ rated.
>proc cpuinfo reports
>
>cpu Mhz as 997.481
>
>Do I have to run the 64 bit version to have things run correctly?
>I just have the normal 4.2 loaded at this time.
>
>The laptop seems slow for 4000+ as reflected by the cpu Mhz also.
>
>Any thoughts on running the 32 bit version of 4.2 vs the 64 bit version 
>of 4.2?
See AMD "Cool'n'Quiet" which reduces the CPU speed when not
under load (and/or
on 'niced' processes).  You can disable the cpuspeed init to make it
always
run at the maximum speed.

Dave Thompson
UW-Madison

Jerry Geis <geisj at pagestation.com> wrote:
> Hi
> I have a compaq R4000 with the 2.4GIG AMD 64 bit. 4000+
> rated. proc cpuinfo reports
> cpu Mhz as 997.481
> Do I have to run the 64 bit version to have things run
> correctly?  I just have the normal 4.2 loaded at this time.
> The laptop seems slow for 4000+ as reflected by the cpu Mhz
> also.
> Any thoughts on running the 32 bit version of 4.2 vs the 64
> bit version of 4.2?
AMD PowerNow! may reduce the clock to increase battery life. 
Try running a heafty video or 3D application while cat'ing
/proc in the background (maybe a quick for loop that sleeps
every few seconds).

There can be compatibility issues with AMD PowerNow!, older
kernels, older BIOSes, etc...

-- Bryan

P.S.  How are you liking the Athlon 64 / ATI Xpress 200
chipset combination under Linux?  I'm very tempted to drop
$800-900 on an Averec (sp?) light (4.4lbs.), 12" portable
with the Turion 64 / Xpress 200 combination.  I was hopeful
that nVidia would enter the space with a NV44 (GeForce
61x0/nForce 4x0) since I explicitly trust their APIC/ACPI/I2C
logic and MCP-04 peripherals under Linux.  But that doesn't
seem to be happening.


-- 
Bryan J. Smith                | Sent from Yahoo Mail
mailto:b.j.smith at ieee.org     |  (please excuse any
http://thebs413.blogspot.com/ |   missing headers)

Jerry Geis wrote:
> Hi
>
> I have a compaq R4000 with the 2.4GIG AMD 64 bit. 4000+ rated.
> proc cpuinfo reports
>
> cpu Mhz as 997.481
>
cpuspeed is doing the speed stepping.

do this:  dmesg |grep -i powernow

to gain some insight
> Do I have to run the 64 bit version to have things run correctly?
nope
> I just have the normal 4.2 loaded at this time.
>
> The laptop seems slow for 4000+ as reflected by the cpu Mhz also.
I would guess it's a combination of throttled CPU and slow hard disk.
> Any thoughts on running the 32 bit version of 4.2 vs the 64 bit 
> version of 4.2?
why buy a 64bit system if you aren't going to use a 64bit OS?

Jerry Geis <geisj at pagestation.com
<http://lists.centos.org/mailman/listinfo/centos>>
wrote:
>/ Hi
/>/ I have a compaq R4000 with the 2.4GIG AMD 64 bit. 4000+
/>/ rated. proc cpuinfo reports
/>/ cpu Mhz as 997.481
/>/ Do I have to run the 64 bit version to have things run
/>/ correctly?  I just have the normal 4.2 loaded at this time.
/>/ The laptop seems slow for 4000+ as reflected by the cpu Mhz
/>/ also.
/>/ Any thoughts on running the 32 bit version of 4.2 vs the 64
/>/ bit version of 4.2?
/
>AMD PowerNow! may reduce the clock to increase battery life. 
>Try running a heafty video or 3D application while cat'ing
>/proc in the background (maybe a quick for loop that sleeps
>every few seconds).
>There can be compatibility issues with AMD PowerNow!, older
>kernels, older BIOSes, etc...

At the moment I tried "cpuspeed -C" to run at full speed when AC

I get an error about "Could not open file for writing"
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor


Jerry

Jerry Geis wrote:
>/ Hi
/>/
/>/ I have a compaq R4000 with the 2.4GIG AMD 64 bit. 4000+ rated.
/>/ proc cpuinfo reports
/>/
/>/ cpu Mhz as 997.481
/>/
/cpuspeed is doing the speed stepping.

do this:  dmesg |grep -i powernow

to gain some insight
>/ Do I have to run the 64 bit version to have things run correctly?
/
nope
>/ I just have the normal 4.2 loaded at this time.
/>/
/>/ The laptop seems slow for 4000+ as reflected by the cpu Mhz also.
/I would guess it's a combination of throttled CPU and slow hard disk.
>/ Any thoughts on running the 32 bit version of 4.2 vs the 64 bit 
/>/ version of 4.2?
/why buy a 64bit system if you aren't going to use a 64bit OS?
------------------------

dmesg | grep -i powernow 
didnt give me much...

ACPI: SSDT (v001 PTLD POWERNOW 0x0604000 LTP 0x00001) @ 0x3fefeec0

I am just running the 32 bit version now until which time I can download
the 64 bit. I need a bigger pipe....

I just wanted to see what the machine would do while I waited... :)

Jerry


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Jerry Geis wrote:
> Jerry Geis wrote:
>>/ Hi
> />/
> />/ I have a compaq R4000 with the 2.4GIG AMD 64 bit. 4000+ rated.
> />/ proc cpuinfo reports
> />/
> />/ cpu Mhz as 997.481
> />/
> /cpuspeed is doing the speed stepping.
> 
> do this:  dmesg |grep -i powernow
> 
> to gain some insight
> 
> 
> dmesg | grep -i powernow 
> didnt give me much...
> 
> ACPI: SSDT (v001 PTLD POWERNOW 0x0604000 LTP 0x00001) @ 0x3fefeec0
> 
Must be a chipset or turion difference then.  I get the following.  But 
from other emails I see you have found an answer to your question.

$ dmesg |grep powernow
powernow-k8: Found 1 AMD Athlon 64 / Opteron processors (version 1.50.4)
powernow-k8:    0 : fid 0xe (2200 MHz), vid 0x6 (1400 mV)
powernow-k8:    1 : fid 0xc (2000 MHz), vid 0xa (1300 mV)
powernow-k8:    2 : fid 0xa (1800 MHz), vid 0xe (1200 mV)
powernow-k8:    3 : fid 0x8 (1600 MHz), vid 0x12 (1100 mV)
powernow-k8:    4 : fid 0x0 (800 MHz), vid 0x18 (950 mV)