xenserver dom0, domU의 vCPU 관리 하기

 
작성자 : 서진우 (alang@clunix.com)

 

 

– dom0 cpu_pin 관리

/opt/xensource/libexec/xen-cmdline –set-xen dom0_max_vcpus=1-6

/opt/xensource/libexec/xen-cmdline –set-xen dom0_vcpus_pin

 

– 명령어로 dom0, domU vCPU 관리하기

command 로 제어하기

 

Usage: xl [-v] vcpu-pin <Domain> <VCPU|all> <CPUs|all>

 

xm vcpu-pin ID VCPU CPU

xm vcpu-pin 14 0 7

 

xm vcpu-pin 0 0 0

xm vcpu-pin 0 1 0

xm vcpu-pin 0 2 0

xm vcpu-pin 0 3 0

xm vcpu-pin 0 4 1

xm vcpu-pin 0 5 1

xm vcpu-pin 0 6 1

xm vcpu-pin 0 7 1

 

[root@host ~]# /usr/lib/xen/bin/host-cpu-tune

Usage: /usr/lib/xen/bin/host-cpu-tune { show | advise | set <dom0_vcpus> <pinning> [–force] }

show     Shows current running configuration

advise   Advise on a configuration for current host

set      Set host’s configuration for next reboot

<dom0_vcpus> specifies how many vCPUs to give dom0

<pinning>    specifies the host’s pinning strategy

allowed values are ‘nopin’ or ‘xpin’

[–force]    forces xpin even if VMs conflict

 

Examples: /usr/lib/xen/bin/host-cpu-tune show

/usr/lib/xen/bin/host-cpu-tune advise

/usr/lib/xen/bin/host-cpu-tune set 4 nopin

/usr/lib/xen/bin/host-cpu-tune set 8 xpin

/usr/lib/xen/bin/host-cpu-tune set 8 xpin –force

 

xl sched-credit

xl sched-credit -d <domain> -w <weight>

xl sched-credit -d <domain> -c CAP   : CAP is int