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
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