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Re: How many processors do I have?

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Re: How many processors do I have?

Subject: Re: How many processors do I have?
From: Ben Haller <email@hidden>
Date: Wed, 11 Nov 2009 18:40:38 -0500

On 11-Nov-09, at 6:19 PM, Shawn Erickson wrote:

IIRC the latest Mac Pro system use Xeon processors that are HT
(hyper-threading, aka SMT) capable, each core is capable of running
two threads concurrently. This gives you 16 "logical" cores even
though you only have 8 physical cores.

Try the following...

[0:512] > sysctl hw.physicalcpu hw.logicalcpu
hw.physicalcpu: 8
hw.logicalcpu: 8


  This seems to be it.  Interesting.  I get:

darwin:~ bhaller $ sysctl hw.physicalcpu hw.logicalcpu
hw.physicalcpu: 8
hw.logicalcpu: 16

  New to me.  :->  Thanks!

Ben Haller
Stick Software

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References:  
  >How many processors do I have? (From: Ben Haller <email@hidden>)
  >Re: How many processors do I have? (From: Shawn Erickson <email@hidden>)




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