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Dummy question about /proc/cpuinfo

 
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# 1  
Old 10-15-2008
Dummy question about /proc/cpuinfo
Perhaps this is a very dummy question but sorry I don't know other place to do it. We just buy a new cluster of Xeon machines but there is something I don't understand and perhaps someone can help me.

The more /proc/cpuinfo produces the following output (just part of it).

processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Xeon(R) CPU E5420 @ 2.50GHz
stepping : 6
cpu MHz : 1998.000
cache size : 6144 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4

I revise the E5420 specifications and it says that it has 12MB of cache, however only 6MB are reported in the cpuinfo. Can someone help me
to understand this?

Thank you in advance.

Jorge
# 2  
Old 10-16-2008
hi

I have little knowledge of UNIX; I give u step by step in command u look that one

1. uname -r
2. grep 'physical id' /proc/cpuinfo |sort | uniq | wc -l
3. grep ^processor /proc/cpuinfo |wc -l
4.grep 'cpu cores' /proc/cpuinfo
 
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