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balloon service need to be installed by users even if balloon driver is installed, and most users are NOT aware of that.
This is not the first bug that users complain about it.
Amnon,is there any way to install balloon service automatically during balloon driver installation?
Comment 7Tomáš Golembiovský
2017-10-11 10:00:58 UTC
Description of problem: VirtIO Balloon statistics are not available on Windows 2016. Version-Release number of selected component (if applicable): virtio-win-1.9.3-1.el7 qemu-kvm-ev-2.9.0-16.el7_4.5.1.x86_64 How reproducible: always Steps to Reproduce: 1. Start QEMU using command line: /usr/libexec/qemu-kvm -m 2G -device virtio-balloon-pci,id=balloon0 -qmp-pretty stdio /rhev/data-center/mnt/gateway:_home_data_ovirt4.1-data/8791a57e-bac2-45ab-83c1-bb069d41e094/images/04aefbf6-4f32-43fa-8749-b11efd5cf3f5/e1196018-5965-460e-b0e8-92a8d2720cad 2. Enable collection of stats by QMP command: { "execute": "qom-set", "arguments": { "path": "balloon0", "property": "guest-stats-polling-interval", "value": 5 } } 3. Check the stats by QMP command: { "execute": "qom-get", "arguments": { "path": "balloon0", "property": "guest-stats" } } Actual results: { "execute": "qom-get", "arguments": { "path": "balloon0", "property": "guest-stats" } } { "return": { "stats": { "stat-swap-out": -1, "stat-available-memory": -1, "stat-free-memory": -1, "stat-minor-faults": -1, "stat-major-faults": -1, "stat-total-memory": -1, "stat-swap-in": -1 }, "last-update": 1506516540 } } Expected results: There should be values other than -1.