[Spice-devel] qxl performance problems and xen

[Davide Canova]

Hello,

I am testing Xen 4.2 (unstable) with Qemu 1.1rc2 and spice.
I have severe video performance problems on Windows 7 guest and X
fails to run on Debian wheezy and Ubuntu Precise guest.

If someone is experimenting with Xen and has qxl video, vdagent, audio
and usb redirection working, can you post your xl settings and
describe your setup so that I can try to replicate your results.

Are qxl and other spice features dependent on kvm in some way?
Should I use -vga qxl or -device qxl-vga in Qemu invocation?

I'm looking forward to the Gust RAM Surface Allocation feature in the
hope to solve some video problem, is there any interest in this?
http://spice-space.org/page/Features/GuestRamSurfaceAllocation

Thanks,
D

Here is my Qemu invocation by xl:
--------------------------
libxl: debug: libxl_dm.c:1001:libxl__spawn_local_dm: Spawning device-model /usr/
lib/xen/bin/qemu-system-i386 with arguments:
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:
/usr/lib/xen/bin/qemu-system-i386
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -xen-domid
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   8
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -chardev
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:
socket,id=libxl-cmd,path=/var/run/xen/qmp-libxl-8,server,nowait
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -mon
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:
chardev=libxl-cmd,mode=control
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -name
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   W7
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -spice
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:
port=6000,tls-port=0,addr=0.0.0.0,disable-ticketing,agent-mouse=on
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -boot
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   order=cd
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -smp
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   2,maxcpus=3
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -device
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:
rtl8139,id=nic0,netdev=net0,mac=00:16:3e:6b:1f:d9
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -netdev
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:
type=tap,id=net0,ifname=vif8.0-emu,script=no,downscript=no
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -device
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   qxl-vga
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -global
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:
qxl-vga.vram_size=33554432
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -global
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   qxl-vga.ram_size=33554432
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -device
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:
virtio-serial-pci,id=virtio-serial0,max_ports=16
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -chardev
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:
spicevmc,name=vdagent,id=vdagent
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -device
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:
virtserialport,nr=1,bus=virtio-serial0.0,chardev=vdagent,name=com.redhat.spice.0
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -M
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   xenfv
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -m
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   1792
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:   -drive
libxl: debug: libxl_dm.c:1003:libxl__spawn_local_dm:
file=/mnt/vm/disks/W7.disk1.xm,if=ide,index=0,media=disk,format=raw