[Spice-devel] Fwd: Dreadful performance under Windows 10 Enterprise 2016 LTSB

[George Diamantopoulos]

Forgot to add spice-devel to recipients list. Forwarding message...

On 10 January 2017 at 11:34, Frediano Ziglio wrote:

> On 10 January 2017 at 10:34, Pavel Grunt wrote:
>
>> Hi,
>>
>> On Tue, 2017-01-10 at 10:06 +0200, George Diamantopoulos wrote:
>> > Hello all,
>> >
>> > I'm trying out qxl-dod
>>
>> Do you mean qxl-wddm-dod by qxl-dod ? If not you can get it from
>> https://www.spice-space.org/download/windows/qxl-wddm-dod/
>> https://gitlab.com/spice/qxl-wddm-dod
>>
>> The latest version is 0.15 released in December
>>
>
> Yes, I've also tried that binary with the same results :-(.
>
> At least is not worst.
>
> I never experiences such terrible performances.
> What are you doing on the guest machine? Normal office applications?
>

Nothing odd yet, mostly trying to install a few apps, xen PV drivers and
initial set-up stuff...

Playing videos?
>

That's the least of my problems. Haven't tried viewing any though

Which image compression are you using?
>

I use virt-manager's GUI to connect, so whatever's the default for that.


> What's the quality of the network? What about bandwidth and latency?
>

I'm locally connected. I don't think this has anything to do with network,
because with the basic Microsoft graphics driver things are normal... I
mean performance is what you'd expect from emulated hardware and much
better than qxl-wddm-dod...


>
> Frediano
>
>
>
>> Pavel
>>
>> >  in a new installation, and performance is so low that the guest is
>> > practically unusable. Redrawing takes about 4-5 seconds. I have used
>> > qxl-dod in the past on the same hardware with much better results,
>> > although the software stack is different this time. I tried
>> > disabling all visual effects, but apart from the expected gains
>> > (fewer frames to redraw after each action due to the animations'
>> > being disabled) it didn't improve usability much.
>> >
>> > As I have no idea how to provide useful debugging information on
>> > this, I'll try to outline my configuration here for now. Please let
>> > me know if there's anything I can do to provide more meaningful
>> > information:
>> >
>> > Host: Gentoo linux, kernel 4.9.1
>> > Hypervizor: Xen 4.8.0
>> > QEMU: 2.8.0 (I'm not using xen's spin of qemu)
>> > libvirt: 2.5.0
>> > virt-manager: 1.4.0
>> > spice: 0.13.3
>> > seabios: 1.10.1
>> >
>> > Windows Guest VM is started with the following options:
>> > /usr/libexec/xen/bin/qemu-system-i386 -xen-domid 2 -chardev
>> > socket,id=libxl-cmd,path=/run/xen/qmp-libxl-2,server,nowait -no-
>> > shutdown -mon chardev=libxl-cmd,mode=control -chardev
>> > socket,id=libxenstat-cmd,path=/run/xen/qmp-libxenstat-
>> > 2,server,nowait -mon chardev=libxenstat-cmd,mode=control -nodefaults
>> > -no-user-config -name Windows -vnc none -display none -k en-us
>> > -serial pty -spice port=5901,tls-port=0,disable-ticketing,agent-
>> > mouse=on,disable-copy-paste -device qxl-
>> > vga,vram_size_mb=64,ram_size_mb=64 -boot order=cd -smp 2,maxcpus=2
>> > -device rtl8139,id=nic0,netdev=net0,mac=00:16:3e:25:27:01 -netdev
>> > type=tap,id=net0,ifname=vif2.0-emu,script=no,downscript=no -machine
>> > xenfv -m 1920 -drive
>> > file=/dev/zvol/tank/windows,if=ide,index=0,media=disk,format=raw,cac
>> > he=writeback -drive if=ide,index=1,readonly=on,media=cdrom,id=ide-
>> > 832,file=/home/gd/Downloads/ISOs/SW_DVD5_WIN_ENT_N_LTSB_2016_64BIT_E
>> > ng_Intl_MLF_X21-07527.ISO,format=raw
>> >
>> > I have used both vrozenfe binaries and flexvdi binaries: it made no
>> > difference at all...
>> > Also note that the mouse cursor is generally responsive. It will
>> > only lag for a bit when hovering over items that need some
>> > refreshing (e.g. highlighting).
>> > BR,
>> > George
>>
>
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