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How to get the L2 cache size

Kwon Keun Joo
Occasional Visitor

How to get the L2 cache size

I want to know the size of the 'external' CPU cache(Level 2 cache).
I already know
getconf(_SC_I_CACHE_SIZE) and
getconf(_SC_D_CACHE_SIZE).

Please, anyone help!

OS: HP-UX 11.11
HW: 9000/800/A500-6X
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2 REPLIES
Michael Steele_2
Honored Contributor

Re: How to get the L2 cache size

To the best of my understanding there is no level 2 cache in the A class or rp24## class of servers:

http://www.hp.com/products1/servers/rackoptimized/rp2400/specifications.html

On the other hand level 2 cache can be found in different Pavilion PC's:

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=bph03398

I did find a fairly elaborate comparison of different platforms which explained which were using L2 cache, and although mentioned with SUN and HP/DEC Alpha's, it is not mentioned with PA-RISC CPU's. Refer to this link:

http://www.dl.ac.uk/CFS/benchmarks/compchem.html

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John Poff
Honored Contributor

Re: How to get the L2 cache size

Hi,

It looks like HP did away with level 2 cache starting with the PA-8500 RISC chip set. Your A-class box should be running on a PA8700 RISC chip. Take a look at this document to learn more about the PA-8700 CPU:

http://www.cpus.hp.com/technical_references/PA-8700wp.pdf

Any particular reason you are interested in Level 2 cache?

JP