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I have a Samsung NP550P7C laptop with an Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz

Under Ubuntu 12.04 32bit, lscpu and /proc/cpuinfo detect 4 CPUs
but lshw only shows 2 CPUs

Could there be some sort of misconfiguration or am i getting something wrong?

Here some details, I hope these are the relevant lines:

ubuntu 12.04:

lshw:
...
    configuration: boot=normal chassis=laptop cpus=2 family=SAMSUNG SENS sku=SAMSUNG SENS Series ...
...
     *-cpu:0
...
          configuration: cores=2 enabledcores=2 id=1 threads=4
...
     *-cpu:1
...
          configuration: id=1
...

There is no cpu:2 or cpu:3

Under Ubuntu 14.04 (64bit) there is only one block of cpu information:

lshw:
....
    *-cpu
...
          configuration: cores=2 enabledcores=2 threads=4
...
murxo
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1 Answers1

2

That CPU has two Cores and four Threads as per the Intel ARK website:

Processor Number    i5-3210M
# of Cores  2
# of Threads    4

If you make sure HT is enabled in your bios this may change to show you four however you may have to check the output from " dmesg | grep CPU " to see the four threads..

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CharlesH
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