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madchaz
l33t
Joined: 01 Jul 2003
Posts: 993
Location: Quebec, Canada
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 Posted: Thu Feb 09, 2006 12:34 am Post subject: How many CPUs on a machine? |
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How do I tell how many CPUs a machine as?
I've got a server at work that I am unsure how many CPUs are in the box. Normaly, I'd just open top and press 1 to see, but the version of top on it doesn't even have that option. The os is a somewhat old redhat enterprise server.
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1clue
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Joined: 05 Feb 2006
Posts: 2569
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| Posted: Thu Feb 09, 2006 12:37 am Post subject: |
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The problem is, a P4 shows up as two CPUs. |
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Ma3oxuct
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Joined: 18 Apr 2003
Posts: 523
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| Posted: Thu Feb 09, 2006 12:48 am Post subject: |
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| 1clue wrote: |
The problem is, a P4 shows up as two CPUs. |
Clarification: A P4 with hyperthreading shows up as two cpus. A dual-core P4 with Hyperthreading enabled shows up as four. A dual core AMD shows up as two. |
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bollucks
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Joined: 27 Oct 2004
Posts: 606
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| Posted: Thu Feb 09, 2006 12:57 pm Post subject: |
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You get more info though:
siblings : 2
cpu cores : 1
Siblings are hyperthread siblings, cores are real cores. So if you get 2 cpus showing up and each one shows siblings:2 and cores:1 that means you only have one real core and hyperthreading enabled (2 logical cores). |
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madchaz
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Joined: 01 Jul 2003
Posts: 993
Location: Quebec, Canada
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| Posted: Thu Feb 09, 2006 12:58 pm Post subject: |
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Thanks. Looks like it only as one Xeon CPU 
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www.madchaz.com A small candle of a website. As my lab specs on it. |
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