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发表于 2019-7-23 15:55:00
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我和嘟牛没有利益相关,只是回复几个问题
27.124.47.54确实是香港IP,参见https://tools.ipip.net/traceroute.php?ip=27.124.47.54&id=274&v=4
用默认的QEMU不算作假,但会导致大量指令集缺失,对于需要用到相应指令集的应用会严重影响CPU性能,
给个对比应该能看出指令集的缺失有多严重了
[ol]Model name: QEMU Virtual CPU version 1.5.3Flags: fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pse36 clflush mmx fxsr sse sse2 syscall nx lm rep_good nopl pni cx16 hypervisor lahf_lm abm[/ol]复制代码[ol]Model name: Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHzFlags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl xtopology cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti ssbd ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveopt arat md_clear[/ol]复制代码[ol]Model name: Intel(R) Xeon(R) Gold 6142 CPU @ 2.60GHzFlags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl xtopology nonstop_tsc pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single ssbd ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 arat flush_l1d[/ol]复制代码 |
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