动态调整KVM虚拟机内存和vcpu实战
sudo virsh shutdown devstack <memory unit='KiB'>2097152</memory>
<currentMemory unit='KiB'>2097152</currentMemory>
<vcpu placement='static'>1</vcpu>sudo virsh setmaxmem devstack 32G <memory unit='KiB'>33554432</memory>
<currentMemory unit='KiB'>2097152</currentMemory>
<vcpu placement='static'>1</vcpu> <vcpu placement='static' current='1'>12</vcpu>动态调整
参考
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