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Description of problem: Windows 7 guest. When running qemu without an audio device, and trying to play a movie using vlc, the host cpu usage is 100%, and the video play is v-e-r-y slow. After disabling the audio track (via vlc menu), the cpu usage is < 50% and the video is viewable. Windows media player works fine. When starting qemu with an audio device there is no problem. Tried it with and without spice and qxl - same problem. My command line: qemu-system-x86_64 -drive file=/images/win7_rhel6.qcow2 -m 1024 -enable-kvm -net tap,ifname=WINXP2,script=/local/scripts/lan-ifup -net nic,macaddr=00:1a:4a:01:00:e0,model=virtio -device virtio-serial -snapshot -no-shutdown -chardev spicevmc,id=vdagent,debug=0,name=vdagent -device virtserialport,chardev=vdagent,name=com.redhat.spice.0 Version-Release number of selected component (if applicable): qemu-kvm-0.12.1.2-2.209.el6
Not sure why this has "Component" set to "pytz" (was this a misclick?); reassigning "Component" to "qemu-kvm".
(In reply to comment #0) > Description of problem: > Windows 7 guest. > When running qemu without an audio device, and trying to play a movie using > vlc, > the host cpu usage is 100%, and the video play is v-e-r-y slow. > After disabling the audio track (via vlc menu), the cpu usage is < 50% and the > video is viewable. > Windows media player works fine. > When starting qemu with an audio device there is no problem. > Tried it with and without spice and qxl - same problem. Could it be a VLC issue? Which audio device have you used?
(In reply to comment #3) > (In reply to comment #0) > > Description of problem: > > Windows 7 guest. > > When running qemu without an audio device, and trying to play a movie using > > vlc, > > the host cpu usage is 100%, and the video play is v-e-r-y slow. > > After disabling the audio track (via vlc menu), the cpu usage is < 50% and the > > video is viewable. > > Windows media player works fine. > > When starting qemu with an audio device there is no problem. > > Tried it with and without spice and qxl - same problem. > > Could it be a VLC issue? It might be > Which audio device have you used? without audio device
Moving from 6.3.0 to 6.4.0. Yonit, please respond to Gerds' inquiry about cpu usage and other media players.
Sitting half a year in needinfo is enougth.