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Sysadmin AMD and the new 5.11 Kernel

Discussion in 'System Administration' started by Matt, Feb 18, 2021.

  1. Matt

    Matt Well-Known Member

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    AMD users should immediately switch to the latest Linux 5.11 kernel | TechRadar

    Just swapped out my own server.


    CPU before:
    Code:
    processor       : 11
    vendor_id       : AuthenticAMD
    cpu family      : 23
    model           : 113
    model name      : AMD Ryzen 5 3600 6-Core Processor
    stepping        : 0
    microcode       : 0x8701021
    cpu MHz         : 3600.000
    cache size      : 512 KB
    physical id     : 0
    siblings        : 12
    core id         : 6
    cpu cores       : 6
    apicid          : 13
    initial apicid  : 13
    fpu             : yes
    fpu_exception   : yes
    cpuid level     : 16
    wp              : yes
    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 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 ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_l2 cpb cat_l3 cdp_l3 hw_pstate sme retpoline_amd ssbd ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif umip overflow_recov succor smca
    bogomips        : 7186.40
    TLB size        : 3072 4K pages
    clflush size    : 64
    cache_alignment : 64
    address sizes   : 43 bits physical, 48 bits virtual
    power management: ts ttp tm hwpstate cpb eff_freq_ro [13] [14]
    and after!
    Code:
    processor       : 11
    vendor_id       : AuthenticAMD
    cpu family      : 23
    model           : 113
    model name      : AMD Ryzen 5 3600 6-Core Processor
    stepping        : 0
    microcode       : 0x8701021
    cpu MHz         : 4334.765
    cache size      : 512 KB
    physical id     : 0
    siblings        : 12
    core id         : 6
    cpu cores       : 6
    apicid          : 13
    initial apicid  : 13
    fpu             : yes
    fpu_exception   : yes
    cpuid level     : 16
    wp              : yes
    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 rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf 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 ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate sme ssbd mba sev ibpb stibp vmmcall sev_es fsgsbase bmi1 avx2 smep bmi2 cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr rdpru wbnoinvd arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif umip rdpid overflow_recov succor smca
    bugs            : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass
    bogomips        : 7186.99
    TLB size        : 3072 4K pages
    clflush size    : 64
    cache_alignment : 64
    address sizes   : 43 bits physical, 48 bits virtual
    power management: ts ttp tm hwpstate cpb eff_freq_ro [13] [14]

    Code:
    # uname -a
    Linux hz1.mattwservices.uk 5.11.0-1.el7.elrepo.x86_64 #1 SMP Sun Feb 14 18:10:38 EST 2021 x86_64 x86_64 x86_64 GNU/Linux
     
  2. eva2000

    eva2000 Administrator Staff Member

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    Yup 5.11 has nice improvements Linux 5.11 Released With Intel Integer Scaling, AMD Performance Boost, RTX 30 KMS - Phoronix