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https://github.com/virt-manager/virt-manager.git
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fb7868db19
This is where performance issues hit the most. This changes the RHEL default to remove cache=None for all file volumes. If anyone cares they can speak up, but it seems an overly unnecessary deviation from upstream qemu.
50 lines
1.4 KiB
XML
50 lines
1.4 KiB
XML
<domain type="kvm">
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<name>TestGuest</name>
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<uuid>12345678-1234-1234-1234-123456789012</uuid>
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<memory>409600</memory>
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<currentMemory>204800</currentMemory>
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<vcpu>5</vcpu>
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<os>
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<type arch="i686">hvm</type>
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<boot dev="hd"/>
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</os>
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<features>
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<acpi/>
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<apic/>
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</features>
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<clock offset="utc"/>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>restart</on_crash>
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<devices>
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<emulator>/usr/lib/xen/bin/qemu-dm</emulator>
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<disk type="file" device="floppy">
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<driver name="qemu" type="qcow2"/>
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<source file="/dev/default-pool/testvol1.img"/>
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<target dev="fda" bus="fdc"/>
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</disk>
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<disk type="file" device="disk">
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<driver name="qemu" type="raw"/>
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<source file="/dev/default-pool/rhel6.img"/>
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<target dev="vda" bus="virtio"/>
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</disk>
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<disk type="block" device="disk">
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<driver name="qemu" type="raw" cache="none" io="native"/>
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<source dev="/dev/disk-pool/diskvol1"/>
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<target dev="vdb" bus="virtio"/>
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</disk>
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<interface type="network">
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<source network="default"/>
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<mac address="22:22:33:44:55:66"/>
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<model type="virtio"/>
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</interface>
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<input type="tablet" bus="usb"/>
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<graphics type="sdl" display=":3.4" xauth="/tmp/.Xauthority"/>
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<console type="pty"/>
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<sound model="ich6"/>
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<video>
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<model type="cirrus"/>
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</video>
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</devices>
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</domain>
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