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Linux 64-bit cpu Identification

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Linux identifies 64-bit cpu-Linux Enterprise Application-Linux server application information. The following is a detailed description. Run the command x86info to check whether the cpu supports the x86-64 command. Execute two commands respectively. X86_64 can run 64-bit cpu.

X86_64 x86info

Mmx sse sse2 are Pentium identifiers, representing multimedia processing and SSE (Streaming SIMD Extensions ). Here, SIMD may be the meaning of Single Instruction Multi-Data (I am not sure ). These special instruction sets are not available on other non-Pentium instances.

Ht (Hyper-Threading) and lm (Long Mode) are features of EM64T machines. lm enables EM64T to control the 64-bit memory space.

Pni (Prescott New Instructions) indicates that I use Prescott, an x86_64 type CPU evolved from P4.

Monitor ds-cpl cid xtpr these are the feature tags in the ECX register, indicating that I use the EM64T CPU. For details, you can go to Intel's website and check it out.

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