hi,
We have purchased a dell R710 and run redhat linux on it.
We want to determine the the number of physical sockets and cores and
hyperthreads on this server.
# dmidecode -t 4 | grep CPU
Socket Designation: CPU1
Version: Intel(R) Xeon(R) CPU X5670 @ 2.93GHz
Socket Designation: CPU2
Version: Intel(R) Xeon(R) CPU X5670 @ 2.93GHz
*** excerpts from /proc/cpuifno ***
processor: 0 physical id: 1 core id: 0 cpu cores: 6
processor: 1 physical id: 0 core id: 0 cpu cores: 6
processor: 2 physical id: 1 core id: 1 cpu cores: 6
processor: 3 physical id: 0 core id: 1 cpu cores: 6
processor: 4 physical id: 1 core id: 2 cpu cores: 6
processor: 5 physical id: 0 core id: 2 cpu cores: 6
processor: 6 physical id: 1 core id: 8 cpu cores: 6
processor: 7 physical id: 0 core id: 8 cpu cores: 6
processor: 8 physical id: 1 core id: 9 cpu cores: 6
processor: 9 physical id: 0 core id: 9 cpu cores: 6
processor: 10 physical id: 1 core id: 10 cpu cores: 6
processor: 11 physical id: 0 core id: 10 cpu cores: 6
processor: 12 physical id: 1 core id: 0 cpu cores: 6
processor: 13 physical id: 0 core id: 0 cpu cores: 6
processor: 14 physical id: 1 core id: 1 cpu cores: 6
processor: 15 physical id: 0 core id: 1 cpu cores: 6
processor: 16 physical id: 1 core id: 2 cpu cores: 6
processor: 17 physical id: 0 core id: 2 cpu cores: 6
processor: 18 physical id: 1 core id: 8 cpu cores: 6
processor: 19 physical id: 0 core id: 8 cpu cores: 6
processor: 20 physical id: 1 core id: 9 cpu cores: 6
processor: 21 physical id: 0 core id: 9 cpu cores: 6
processor: 22 physical id: 1 core id: 10 cpu cores: 6
processor: 23 physical id: 0 core id: 10 cpu cores: 6
>From what i understand we have 2 physical CPU sockets, each with 6 cores, so
a total of 12 cores right?
I guess with hyperthreading this appears to be 24 logical cpu's right?
I came to this conclusion on the following facts:
1. any cpy with the same "physical id" are cores in the same socket.
2. any cpu with the same "core id" are hyperthreads in the same core.
Thanks,
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