AMD protsessor

|===Sissejuhatus===

TODO

Mõisted

TODO

AMD protsessorid

TODO

Süsteemi protsessori omaduste muutmine

Protsessorite arv

root@pwrk-02:~# lscpu
Architecture:             x86_64
  CPU op-mode(s):         32-bit, 64-bit
  Address sizes:          52 bits physical, 57 bits virtual
  Byte Order:             Little Endian
CPU(s):                   4
  On-line CPU(s) list:    0,1
  Off-line CPU(s) list:   2,3
Vendor ID:                AuthenticAMD
  BIOS Vendor ID:         QEMU
  Model name:             AMD Ryzen Threadripper PRO 7965WX 24-Cores
    BIOS Model name:      pc-q35-10.0  CPU @ 2.0GHz
    BIOS CPU family:      1
    CPU family:           25
    Model:                24
...

kus

• On-line CPU(s) list: 0,1
• Off-line CPU(s) list: 2,3

muudatuse tegemiseks sobib öelda

root@pwrk-02:~# echo 0 > /sys/devices/system/cpu/cpu3/online
root@pwrk-02:~# echo 0 > /sys/devices/system/cpu/cpu2/online

# dmesg -T
...

[Sat Oct 11 14:39:56 2025] smpboot: CPU 3 is now offline
[Sat Oct 11 14:40:00 2025] smpboot: CPU 2 is now offline

Tagasi lülitamiseks

root@pwrk-02:~# echo 1 > /sys/devices/system/cpu/cpu2/online
root@pwrk-02:~# echo 1 > /sys/devices/system/cpu/cpu3/online

# dmesg -T
...

[Sat Oct 11 14:42:33 2025] smpboot: Booting Node 0 Processor 2 APIC 0x2
[Sat Oct 11 14:42:39 2025] smpboot: Booting Node 0 Processor 3 APIC 0x3

Kasulikud materjalid

• http://en.wikipedia.org/wiki/Advanced_Micro_Devices
• Intel protsessor
• Generic protsessor
• http://www.anandtech.com/show/5058/amds-opteron-interlagos-6200