Greetings, ----- Original Message ----- > Hi > > ----- Original Message ----- > > Hi All, > > > > We have been piloting deployments of VM using Fedora 20 host and guest > > and have been very happy with performance and stability in almost every > > respect, so a big thanks to all for this hard work. Things are looking > > great. > > > > Now we have been testing deployments of these same VMs (F20 guests) on > > rhel 7 (centos 7). We migrated one over and one of the issues seems to > > be a severe degradation of video performance vis-a-vis the F20 host. > > The difference between rhel7 and f20 host is quite surprising. I get > quite bad performance with f20 host as well (spice 0.12.4-3, qemu 2.0.0-5) > > Are your host configured with the same spice settings (in particular > streaming-video and other compression settings) ? > > > The setup is a C7 host, F20 guest and either C7 or F20 client, either > > local to the host or on the LAN. > > > > In this setup, the video plays fine for a few seconds, but eventually > > degrades to about 1fps with severe tearing of the video. Video does > > remain in sync with audio and there are no audio breakups. > > > > Any pointers on things to try? > > I have been investigating some video rendering issues with rhel7 guest > on rhel7 host, see > https://bugzilla.redhat.com/show_bug.cgi?id=1030024 > > However, even with the cogl fix and "PutImage BIG-REQUEST", the video > regions seems to vary too much for the Spice video filter to perform > well (using firefox/html5 video youtube). I believe it will need to be > improved. > > (the cogl fix allows much more accurate region invalidation, the > big-request allows to update whole region atomically and not by > chunks) > > > I'm willing to rebuild some host components (e.g. spice-server or qemu > > or whatever) or try some patches or configuration changes to address > > this to track it down. > > Your help would be most welcome to investigate and improve this > further. > _______________________________________________ > Spice-devel mailing list > Spice-devel@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/spice-devel The original writer said that Fedora 20 was great and RHEL7 sucked... and you said the opposite. Which is correct? Here are the differences between the two: -- RHEL7 -- libvirt-client-1.1.1-29.el7.x86_64 libvirt-daemon-1.1.1-29.el7.x86_64 libvirt-daemon-config-network-1.1.1-29.el7.x86_64 libvirt-daemon-driver-interface-1.1.1-29.el7.x86_64 libvirt-daemon-driver-network-1.1.1-29.el7.x86_64 libvirt-daemon-driver-nodedev-1.1.1-29.el7.x86_64 libvirt-daemon-driver-nwfilter-1.1.1-29.el7.x86_64 libvirt-daemon-driver-qemu-1.1.1-29.el7.x86_64 libvirt-daemon-driver-secret-1.1.1-29.el7.x86_64 libvirt-daemon-driver-storage-1.1.1-29.el7.x86_64 libvirt-daemon-kvm-1.1.1-29.el7.x86_64 libvirt-gconfig-0.1.7-3.el7.x86_64 libvirt-glib-0.1.7-3.el7.x86_64 libvirt-gobject-0.1.7-3.el7.x86_64 libvirt-python-1.1.1-29.el7.x86_64 qemu-kvm-1.5.3-60.el7_0.2.x86_64 qemu-kvm-common-1.5.3-60.el7_0.2.x86_64 spice-glib-0.20-8.el7.x86_64 spice-gtk3-0.20-8.el7.x86_64 spice-server-0.12.4-5.el7.x86_64 spice-vdagent-0.14.0-7.el7.x86_64 -- Fedora 20 -- libvirt-1.1.3.5-2.fc20.x86_64 libvirt-daemon-1.1.3.5-2.fc20.x86_64 libvirt-daemon-config-network-1.1.3.5-2.fc20.x86_64 libvirt-daemon-config-nwfilter-1.1.3.5-2.fc20.x86_64 libvirt-daemon-driver-interface-1.1.3.5-2.fc20.x86_64 libvirt-daemon-driver-libxl-1.1.3.5-2.fc20.x86_64 libvirt-daemon-driver-lxc-1.1.3.5-2.fc20.x86_64 libvirt-daemon-driver-network-1.1.3.5-2.fc20.x86_64 libvirt-daemon-driver-nodedev-1.1.3.5-2.fc20.x86_64 libvirt-daemon-driver-nwfilter-1.1.3.5-2.fc20.x86_64 libvirt-daemon-driver-qemu-1.1.3.5-2.fc20.x86_64 libvirt-daemon-driver-secret-1.1.3.5-2.fc20.x86_64 libvirt-daemon-driver-storage-1.1.3.5-2.fc20.x86_64 libvirt-daemon-driver-uml-1.1.3.5-2.fc20.x86_64 libvirt-daemon-driver-vbox-1.1.3.5-2.fc20.x86_64 libvirt-daemon-driver-xen-1.1.3.5-2.fc20.x86_64 libvirt-daemon-kvm-1.1.3.5-2.fc20.x86_64 libvirt-docs-1.1.3.5-2.fc20.x86_64 libvirt-gconfig-0.1.7-2.fc20.x86_64 libvirt-glib-0.1.7-2.fc20.x86_64 libvirt-gobject-0.1.7-2.fc20.x86_64 libvirt-python-1.1.3.5-2.fc20.x86_64 qemu-kvm-1.6.2-6.fc20.x86_64 spice-glib-0.23-2.fc20.x86_64 spice-gtk-0.23-2.fc20.x86_64 spice-gtk3-0.23-2.fc20.x86_64 spice-gtk-tools-0.23-2.fc20.x86_64 spice-server-0.12.5-2.fc20.x86_64 TYL, -- Scott Dowdle 704 Church Street Belgrade, MT 59714 (406)388-0827 [home] (406)994-3931 [work] _______________________________________________ Spice-devel mailing list Spice-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/spice-devel