我在主机上安装了Centos 6.5，qemu + KVM和2个虚拟主机（在NAT后面）。 这两个虚拟主机都configuration了虚拟机pipe理器（其中一个与Windows 2003和其他与Centos 6.5），都有固定的内存（8Gb和4Gb）。 我有2个问题/问题。
如果我在Virt.manager中configuration了不固定的RAM容量（不允许使用从4Gb到8Gb），我的虚拟机将在主机（大于8Gb）内占用所有可用内存，
在主机的htop中，我看不到每个虚拟机都有一个qemu进程，但是有很多相同的进程。 机。 哪里不对？
如果我进入virt.machine并检查免费-m我看到有很多免费的内存。
新增（VM domxml）：
<domain type='kvm'> <name>myvm</name> <uuid>27934a14-b54e-1e4e-65de-7f6d03b1e7ce</uuid> <memory unit='KiB'>8388608</memory> <currentMemory unit='KiB'>8388608</currentMemory> <vcpu placement='static'>2</vcpu> <os> <type arch='x86_64' machine='rhel6.6.0'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/libexec/qemu-kvm</emulator> <disk type='file' device='disk'> <driver name='qemu' type='raw' cache='none'/> <source file='/var/lib/libvirt/images/myvm.img'/> <target dev='vda' bus='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </disk> <disk type='block' device='cdrom'> <driver name='qemu' type='raw'/> <target dev='hdc' bus='ide'/> <readonly/> <address type='drive' controller='0' bus='1' target='0' unit='0'/> </disk> <controller type='usb' index='0' model='ich9-ehci1'> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x7'/> </controller> <controller type='usb' index='0' model='ich9-uhci1'> <master startport='0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0' multifunction='on'/> </controller> <controller type='usb' index='0' model='ich9-uhci2'> <master startport='2'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x1'/> </controller> <controller type='usb' index='0' model='ich9-uhci3'> <master startport='4'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x2'/> </controller> <controller type='ide' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <interface type='network'> <mac address='52:54:00:99:ee:4f'/> <source network='default'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <input type='tablet' bus='usb'/> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes'/> <sound model='ich6'> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </sound> <video> <model type='cirrus' vram='9216' heads='1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </memballoon> </devices> </domain> 添加了“ps -ef | grep myvm”的输出：
qemu 8105 1 4月23日？ 06:23:05 / usr / libexec / qemu-kvm -name myvm -S -M rhel6.6.0 -enable-kvm -m 8192 -realtime mlock = off -smp 2，sockets = 2，cores = 1，threads = 1 -uuid 27934a14-b54e-1e4e-65de-7f6d03b1e7ce -nodefconfig -nodefaults -chardev socket，id = charmonitor，path = / var / lib / libvirt / qemu / myvm.monitor，server，nowait -mon chardev = charmonitor，id = monitor ，mode = control -rtc base = utc -no-shutdown -device ich9-usb-ehci1，id = usb，bus = pci.0，addr = 0x5.0x7 -device ich9-usb-uhci1，masterbus = usb.0， firstport = 0，bus = pci.0，multifunction = on，addr = 0x5 -device ich9-usb-uhci2，masterbus = usb.0，firstport = 2，bus = pci.0，addr = 0x5.0x1 -device ich9- usb-uhci3，masterbus = usb.0，firstport = 4，bus = pci.0，addr = 0x5.0x2 -drive file = / var / lib / libvirt / images / myvm.img，if = none，id = virtio-disk0，format = raw，cache = none -device virtio-blk-pci，scsi = off，bus = pci.0，addr = 0x6，drive = drive-virtio-disk0，id = virtio-disk0，bootindex = 1 -drive if = none，media = cdrom，id = drive-ide0-1-0，readonly = on，format = raw -device ide-drive，bus = ide.1，unit = 0，drive = drive-ide0-1 -0，id = ide0-1-0 -netdev tap，f d = 22，id = hostnet0，vhost = on，vhostfd = 23 -device virtio-net-pci，netdev = hostnet0，id = net0，mac = 52：54：00：99：ee：4f，bus = pci.0 ，addr = 0x3 -chardev pty，id = charserial0 -device isa-serial，chardev = charserial0，id = serial0 -device usb-tablet，id = input0 -vnc 127.0.0.1:0 -vga cirrus -device intel-hda，id = sound0，bus = pci.0，addr = 0x4 -device hda-duplex，id = sound0-codec0，bus = sound0.0，cad = 0 -device virtio-balloon-pci，id = balloon0，bus = pci.0 ，addr = 0x7 -msg timestamp = on