增大虚拟内存、增加虚拟CPU个数
增大虚拟机内存、增加虚拟机CPU个数需要首先关机虚拟机
- 关闭虚拟机
virsh shutdown WMS-test-1
- 编辑虚拟机配置文件
修改内存大小、vcpu个数
#virsh edit WMS-test-1
<domain type='kvm'>
<name>WMS-test-1</name>
<uuid>67f9c89c-fcb2-6cd3-27c1-de7799d1db92</uuid>
<memory unit='KiB'>8192000</memory>
<currentMemory unit='KiB'>8192000</currentMemory>
<vcpu placement='static'>4</vcpu>
- 从配置文件中启动虚拟机
virsh create /etc/libvirt/qemu/WMS-test-1.xml
- 查看当前内存大小
[root@mryx-kvm1 soft]# virsh dominfo WMS-test-1|grep memory
Max memory: 8192000 KiB
Used memory: 8192000 KiB
- 调小虚拟机内存
调小虚拟机内存无需重启
virsh setmem WMS-test-1 1024000
- 验证内存与CPU
[root@mryx-kvm1 soft]# virsh dominfo WMS-test-1|grep memory
Max memory: 8192000 KiB
Used memory: 1024000 KiB
[root@mryx-kvm1 soft]# virsh dominfo WMS-test-1|grep CPU
CPU(s): 4
CPU time: 25.4s