My First AMD EPYC 7251 memo
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The document provides a detailed overview of the AMD EPYC 7251 processor, including its architecture, specifications, and performance features. It highlights aspects such as CPU configuration, cache sizes, and virtualization capabilities. Additionally, it lists the processor's flags and NUMA node details.
My First AMD EPYC 7251 memo
- 1. My First AMD EPYC 7251 memo 2017/09/08 SAKURA Internet, Inc. Research Center SR / Naoto MATSUMOTO (C) Copyright 1996-2017 SAKURA Internet Inc
- 2. AMD EPYC 7251 overview/spec 2 # uname -sr ; cat /etc/redhat-release Linux 3.10.0-693.5.2.el7.x86_64 CentOS Linux release 7.4.1708 (Core) # lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 32 On-line CPU(s) list: 0-31 Thread(s) per core: 2 Core(s) per socket: 8 Socket(s): 2 NUMA node(s): 8 Vendor ID: AuthenticAMD CPU family: 23 Model: 1 Model name: AMD EPYC 7251 8-Core Processor Stepping: 2 CPU MHz: 1200.000 CPU max MHz: 2100.0000 CPU min MHz: 1200.0000 BogoMIPS: 4199.47 Virtualization: AMD-V L1d cache: 32K L1i cache: 64K L2 cache: 512K L3 cache: 4096K NUMA node0 CPU(s): 0,1,16,17 NUMA node1 CPU(s): 2,3,18,19 NUMA node2 CPU(s): 4,5,20,21 NUMA node3 CPU(s): 6,7,22,23 NUMA node4 CPU(s): 8,9,24,25 NUMA node5 CPU(s): 10,11,26,27 NUMA node6 CPU(s): 12,13,28,29 NUMA node7 CPU(s): 14,15,30,31 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc art rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf eagerfpu pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_l2 cpb hw_pstate avic fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold overflow_recov succor smca