Linux CPUInfo：CPU支持的指令集有哪些

在Linux系统中，可以通过查看/proc/cpuinfo文件来获取CPU的详细信息，包括支持的指令集。以下是一些常见的指令集及其在/proc/cpuinfo中的标识：

常见指令集标识

1. x86

   • 表示这是一个x86架构的CPU。

2. x86_64

   • 表示这是一个64位的x86架构CPU。

3. sse

   • 表示支持Streaming SIMD Extensions（流式SIMD扩展）。

4. sse2

   • 表示支持SSE2指令集。

5. sse3

   • 表示支持SSE3指令集。

6. ssse3

   • 表示支持Supplemental SSE3指令集。

7. sse4.1

   • 表示支持SSE4.1指令集。

8. sse4.2

   • 表示支持SSE4.2指令集。

9. avx

   • 表示支持Advanced Vector Extensions（高级向量扩展）。

10. avx2

    • 表示支持AVX2指令集。

11. avx512f

    • 表示支持AVX-512 Foundation指令集。

12. avx512dq

    • 表示支持AVX-512 Doubleword and Quadword Instructions指令集。

13. avx512cd

    • 表示支持AVX-512 Conflict Detection指令集。

14. avx512bw

    • 表示支持AVX-512 Byte and Word Instructions指令集。

15. avx512vl

    • 表示支持AVX-512 Vector Length Extensions指令集。

16. fma

    • 表示支持Fused Multiply-Add指令集。

查看CPU支持的指令集

你可以使用以下命令来查看CPU支持的指令集：

grep flags /proc/cpuinfo

这个命令会列出所有CPU支持的指令集标志。例如：

flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp lm constant_tsc up arat epb pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp sev sev_es rtm cldemote avx512f avx512dq avx512cd avx512bw avx512vl fma4 evmcs avx512bwi avx512ifma vnni abm3 ivtunep mpx rdt_aav mba sev_granularity tme aperfmperf pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid