On Wed, Aug 26, 2020 at 8:19 PM info--- via Users <users@ovirt.org> wrote:
> I enabled libgfapi and powered off / on the VM. > > - engine-config --all > - LibgfApiSupported: true version: 4.3 > > How can I see that this is active on the VM? The disk looks the same like > before. > > - virsh dumpxml 15 > <disk type='file' device='disk' snapshot='no'> > <driver name='qemu' type='raw' cache='none' error_policy='stop' > io='threads'/> > <source file='/rhev/data-center/mnt/glusterSD/10.9.9.101: > _vmstore/f2c621de-42bf-4dbf-920c-adf4506b786d/images/1e231e3e-d98c-491a-9236-907814d4837/c755aaa3-7d3d-4c0d-8184-c6aae37229ba'> > <seclabel model='dac' relabel='no'/> > </source> > <backingStore/> > <target dev='sdc' bus='scsi'/> > <address type='drive' controller='0' bus='0' target='0' unit='3'/> > </disk> > > > Latest status I remember was this one reported by me at 4.3 RC2 time last year: https://lists.ovirt.org/archives/list/users@ovirt.org/message/KHWQA72JZVGLVXCIQPU2FDFRS73BW4LY/ and I think nothing changed in the mean time, neither for 4.3 nor for 4.4. But not directly tested. Someone reported 4x-5x improvements using libgfapi but initially there were some blockers related to snapshots and HA if I remember correctly and so disabled. My idea is that all previous problems in upstream qemu and libvirtd pieces are now solved since many months but developers didn't consider implementing them due to not so big improvements detected in their tests and/or sufficient time to dedicate to fix and/or other priorities. Some bugzilla referred, to dig into if interested: https://bugzilla.redhat.com/show_bug.cgi?id=1484227 https://bugzilla.redhat.com/show_bug.cgi?id=1465810 https://bugzilla.redhat.com/show_bug.cgi?id=1633642 HIH revamping the interesting topic. Gianluca
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