CentOS 7.x nproc

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It is possible to see CPU information using:

cat /proc/cpuinfo

In the output for every physical CPU (socket) there is a different physical ID. For every core in the processor there is a different core ID. If hyper-threading is enabled then each physical-ID / core-ID pair for hyper-threaded processor would appear twice.

To quickly determine no. of processor cores across all physical IDs, core IDs, threads, etc. use:

nproc

This will give value of <physical CPUs> x <cores per CPU> x <Threads per core> as a single number.

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