linuxaudio.org

On Sun, Jul 25, 2004 at 03:13:37AM +0100, tim hall wrote:

quoted text
> sure:

> ~$ cat /proc/cpuinfo

> processor       : 0

> vendor_id       : GenuineIntel

> cpu family      : 6

> model           : 8

> model name      : Celeron (Coppermine)

> stepping        : 6

> cpu MHz         : 896.977

> cache size      : 128 KB

> fdiv_bug        : no

> hlt_bug         : yes

> 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 apic sep mtrr pge mc=

a=20

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> cmov pat pse36 mmx fxsr sse

> bogomips        : 1789.13

Yeah, definitely overclocked.  There are no Celerons with 128KB cache

that run with a 100Mhz bus, AFAIK.
> > "cpu MHz" the real current speed

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> > "bogomips" issome weird timing value I have no idea what it means exact=

ly

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> It's a semi-arbitrary benchmarking value, usually twice the processor spe=

ed.=20

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> AFAIU.

Depends on the chip.  It is used to calculate the amount of time spent

in a particular kernel delay loop.  Some chips run this code faster or

slower than others.  It's not a benchmark as much as a calibration

value.
> This is what I guessed, I'm using the values specified in the manual for =

a=20

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> Coppermine FC-PGA 600, so:

Oops.  They could be referring to a PIII Coppermine, you know...
> at 3x clock ratio I get:

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> CPU (I assume this is FSB) 100

> PCI 33

> AGP 66

> The display cache runs at 100MHz too, a 1:1 ratio seems logical.

1:1 CPU<->AGP ratio?  That's not going to work well at 100MHZ FSB.
> I think I might read it now. I'm a bit confused as to why my system think=

s=20

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> it's running a 896MHz CPU, But so far there's no overt signs that it isn'=

t=20

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> happy, so I'll prod it a bit and see ;-)

897MHz is just the FSB * 9.  It doesn't run exactly at 100MHz because it

would be impossible to do so while maintaining synchronicity with a

33MHz PCI bus.  33MHz is actually 33.something, so you end up with

99.something when the FSB is running at 3x the PCI frequency.
--=20

Ryan Underwood,