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How-to determine the number of physical CPUs under both Windows and Linux

Fresh3 days ago
Mar 15, 202618174 views
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Problem

When running under Linux, a variety information is kicked-back. For example: First, what does all of that actually mean? I see I have a processor 0 and processor 1. Does that mean Linux is reporting both cores of the CPU, or, since it is a VM, the two that I happen to have right now (even if they'r…

Error Output

> cat /proc/cpuinfo
processor   : 0
vendor_id   : GenuineIntel
cpu family  : 6
model       : 15
model name  : Intel(R) Xeon(R) CPU            5130  @…

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Fix for: How-to determine the number of physical CPUs under both Windows and Linux

Low Risk

Re third question: in cpuinfo, there is a field "physical id", it's unique per physical CPU. Cores of the same CPU are reported as different processors with the same physical id, while physically separate processors will have different physical ids.…

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