[PVE-User] Increase memory QXL graphic adapter

[Eric Abreu]

Thanks a lot Alexandre, I will study all the posible solution and then I
will test it.

Best Regards

Eric

El jul 25, 2017 3:12 AM, "Alexandre DERUMIER" <aderumier at odiso.com>
escribió:

seem that streaming-video=off by default,

maybe can you test with editing

/usr/share/perl5/PVE/QemuServer.pm

        push @$devices, '-spice', "tls-port=${spice_port},addr=$
localhost,tls-ciphers=HIGH,seamless-migration=on";

and add

  push @$devices, '-spice', "tls-port=${spice_port},addr=$
localhost,tls-ciphers=HIGH,seamless-migration=on,streaming-video=filter";


then restart

systemctl restart pvedaemon


and start your vm.


(test with "filter" and "all" value to compare)



----- Mail original -----
De: "aderumier" <aderumier at odiso.com>
À: "proxmoxve" <pve-user at pve.proxmox.com>
Envoyé: Mardi 25 Juillet 2017 10:06:26
Objet: Re: [PVE-User] Increase memory QXL graphic adapter

also discussion about youtube performance

https://www.spinics.net/lists/spice-devel/msg27403.html

"Since you are on el7 system you can test our nightly builds:
https://copr.fedorainfracloud.org/coprs/g/spice/nightly/
which provides ability to switch the video encoder in spicy (package
spice-gtk-tools) under Options menu.

Your vm needs to have the video streaming enabled (set to 'filter' or
'all').

(virsh edit VM ; and add <streaming mode='all'/> to graphics node)

Also check if the image compression is turned on (ideally set to glz)

"

this can be tuned in -spice command line. (this need change in proxmox
QemuServer.pm)

"-spice port=5903,tls-port=5904,addr=127.0.0.1,\
x509-dir=/etc/pki/libvirt-spice,\
image-compression=auto_glz,jpeg-wan-compression=auto,\
zlib-glz-wan-compression=auto,\
playback-compression=on,streaming-video=all"


not sure about new spicy video encoder.



----- Mail original -----
De: "aderumier" <aderumier at odiso.com>
À: "proxmoxve" <pve-user at pve.proxmox.com>
Envoyé: Mardi 25 Juillet 2017 09:23:14
Objet: Re: [PVE-User] Increase memory QXL graphic adapter

another interesting article in deutsh

http://linux-blog.anracom.com/2017/07/06/kvmqemu-mit-qxl-
hohe-aufloesungen-und-virtuelle-monitore-im-gastsystem-definieren-und-
nutzen-i/


----- Mail original -----
De: "aderumier" <aderumier at odiso.com>
À: "proxmoxve" <pve-user at pve.proxmox.com>
Envoyé: Mardi 25 Juillet 2017 09:21:01
Objet: Re: [PVE-User] Increase memory QXL graphic adapter

ovirt have a good draft for auto tune value, I wonder if we could we use
this for proxmox ?
http://www.ovirt.org/documentation/draft/video-ram/

default value are ram='65536', vram='65536', vgamem='16384', 'heads=1'.

also, seem that a new vram64 value is available

https://www.redhat.com/archives/libvir-list/2016-February/msg01082.html


I think you can do tests with

args: -global qxl-vga.ram_size=134217728 -global
qxl-vga.vram_size=134217728 -global qxl-vga.vgamem_mb=32 ....



----- Mail original -----
De: "Eric Abreu" <abreuer1521 at gmail.com>
À: "proxmoxve" <pve-user at pve.proxmox.com>
Envoyé: Mardi 25 Juillet 2017 04:36:04
Objet: [PVE-User] Increase memory QXL graphic adapter

Hi. I wonder if there are ways of improving graphic performance of a kvm
VM. Is there a way of increasing the memory of the virtual graphic adapter
(QXL) from the terminal or tweaking the VM in a way that a user could
stream YouTube videos without interruption. Thank you in advance.
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