In linux, how does one determine whether the cpu is dual-core or single-core-general Linux technology-Linux technology and application information? The following is a detailed description. In linux, you can view the details of each cpu in/proc/cpuinfo.
However, for dual-core CPUs, two CPUs are displayed in cpuinfo. It is often mistaken for two single-core CPUs.
In fact, Physical Processor ID should be used to distinguish between single-core and dual-core. Physical Processor ID can be found in cpuinfo or dmesg.
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