2002-08-06 21:28:28

by Austin Gonyou

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Subject: 2.4.19 See's incorrect cache size on P4 Xeons!?

from cat /proc/cpuinfo:

processor : 7
vendor_id : GenuineIntel
cpu family : 15
model : 1
model name : Intel(R) Xeon(TM) CPU 1.60GHz
stepping : 1
cpu MHz : 1592.180
>>>>cache size : 256 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 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
bogomips : 3178.49

On boot each processor is says it has 1MB L3, is 2.4.19 unable to read
that or something?

TIA

--
Austin Gonyou <[email protected]>


2002-08-06 21:42:08

by Alan

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Subject: Re: 2.4.19 See's incorrect cache size on P4 Xeons!?


> On boot each processor is says it has 1MB L3, is 2.4.19 unable to read
> that or something?

At the moment we report the L1/L2 - we don't actually go decoding L3
caches. They are quite new. We should do however.

2002-08-06 22:25:08

by J.A. Magallon

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Subject: Re: 2.4.19 See's incorrect cache size on P4 Xeons!?


On 2002.08.07 Alan Cox wrote:
>
>> On boot each processor is says it has 1MB L3, is 2.4.19 unable to read
>> that or something?
>
>At the moment we report the L1/L2 - we don't actually go decoding L3
>caches. They are quite new. We should do however.
>

???

P4 Xeon 1.8:

processor : 3
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) XEON(TM) CPU 1.80GHz
stepping : 4
cpu MHz : 1784.295
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 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
bogomips : 3565.15

Oops, model is different....

God save us from PC hardware manufacturers. A Xeon is not just a Xeon.

--
J.A. Magallon \ Software is like sex: It's better when it's free
mailto:[email protected] \ -- Linus Torvalds, FSF T-shirt
Linux werewolf 2.4.19-jam0, Mandrake Linux 9.0 (Cooker) for i586
gcc (GCC) 3.2 (Mandrake Linux 9.0 3.2-0.2mdk)