Re: 4/8 CPUs not seen in /proc/cpuinfo !

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On Wed, 2003-10-22 at 08:16, Mohamed Kerbachi wrote:
> I have access to a server only with ssh so i can't open the box, i see a strange think:
> In /var/log/messages 
> 
> 
> Oct 2 1:18:52 ser cpu: 0, clocks: 998004, slice: 110889
> Oct 2 1:18:52 ser kernel: CPU0<T0:998000,T1:887104,D:7,S:110889,C:998004>
> Oct 2 1:18:52 ser kernel: cpu: 6, clocks: 998004, slice: 110889
> Oct 2 1:18:52 ser kernel: cpu: 3, clocks: 998004, slice: 110889
> Oct 2 1:18:52 ser kernel: cpu: 4, clocks: 998004, slice: 110889
> Oct 2 1:18:52 ser kernel: cpu: 1, clocks: 998004, slice: 110889
> Oct 2 1:18:52 ser kernel: cpu: 2, clocks: 998004, slice: 110889
> Oct 2 1:18:52 ser kernel: cpu: 5, clocks: 998004, slice: 110889
> Oct 2 1:18:52 ser nfslock: rpc.statd startup succeeded
> Oct 2 1:18:52 ser kernel: cpu: 7, clocks: 998004, slice: 110889
> 
> 
> So there is 8 Intel CPUs.
> 
> But with cat /proc/cpuinfo  I see:
> 
> 
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 15
> model           : 1
> ...
> processor       : 2
> vendor_id       : GenuineIntel
> cpu family      : 15
> model           : 1
> .......
> ....
> ..
> 
> processor       : 3
> vendor_id       : GenuineIntel
> cpu family      : 15
> model           : 1
> 
> So only 4 CPU where are the other4 !!!!!! I AM CONFUSED !!!!!
> 
> Thanks for the Help
> 

Seems like I read somewhere that the hyperhtreading CPUs (latest intels)
look like two cpus each to the kernel.  I bet this is what you are
seeing.  Sort of like virtual cpus I guess.

Bret


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