problem with cache size

problem with cache size

[Paweł Kowalski]

Hi,
I'm using RedHat Linux 7.2 with compiled kernel 2.4.25.
My serwer has one cpu "Intel(R) Pentium(R) 4 CPU 3.20GHz" with HT flag so
there are two processors in cpuinfo.
The processor has 2MB cache but `cat /proc/cpuinfo` shows only 16KB.
When I try to use 2.4.17 kernel, there is 2048KB cache but cpuinfo shows
only one cpu :)
I don't know where I should send my question, maybe You could help me.
I'll be very thankful for any answer.

Best Regards,

---
Pawel Kowalski


---
pk

Re: problem with cache size

[Rik van Riel]

On Wed, 19 Apr 2006, Pawe? Kowalski wrote:

> I'm using RedHat Linux 7.2 with compiled kernel 2.4.25.
> My serwer has one cpu "Intel(R) Pentium(R) 4 CPU 3.20GHz" with HT flag so
> there are two processors in cpuinfo.
> The processor has 2MB cache but `cat /proc/cpuinfo` shows only 16KB.

That's cosmetic.  The CPU will still use all the cache,
since this is controlled entirely by hardware and the
OS has no influence.

> When I try to use 2.4.17 kernel, there is 2048KB cache but cpuinfo shows
> only one cpu :)
> I don't know where I should send my question, maybe You could help me.
> I'll be very thankful for any answer.

If you have the time, you could try to find the changeset
that caused the problem and send Marcelo a patch ;)

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