On 03/07/2012 04:08 PM, Tony wrote:

On 03/07/2012 07:01 AM, lynn wrote:

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Hi everyone

Host 12.1 2GB, 128 video=NVIDIA 6100 w 128Mb Guest 12.1 800Mb, 100 video, 3D accel KDE: unusable XFCE OK with compositor is ON but still v. slow.

M$ win7 guest w 640Mb, 64 video+2D/3D is almost as fast as the host.

I think this is to do with the graphics but can anyone give us any sort of comparison of what to expect?

Thanks, L x

I teach Linux at a Technical college and use openSUSE, running on virtual machines, on vmware and virtualbox 4.1.x, myself I use openSUSE as host on all my computers.

I've observed, that when running openSUSE 12.1, in a virtual machine, that on the first run, when akonadi, all the desktop search engines, and man pages etc. initialize on first run, the virtual machine runs very very slow, to the point of being non-responsive. Once everything is done initializing I shutdown akonadi, desktop search etc...., from that point on vm runs well.

Not sure this is the same issue as yours, all my host computers are using Nvidia, however I'm not using the 3d, stuff.

Thanks,

Tony

Hi Yes, I think I can say that we are passed all the initial first login stuff and also we are on XFCE. e.g. top gives: 1053 root 20 0 71816 26m 6700 S 1053 root 20 0 71816 26m 6700 S 5.3 5.4 0:21.03 Xorg 5.3 5.4 0:21.03 Xorg load average: 0.23, 0.34, 0.57 after the initial login with Xorg in the top three most of the time: 1053 root 20 0 71816 26m 6700 S 15.3 5.4 0:21.03 Xorg The strange thing is that it is more responsive with the compositor selected. Without it the screen redraw (e.g. desktop icons are not redrawn immediately) is painful. The amount of actual and video memory I give seems irrelevant. I don't think the Vbox 3D acceleration is working. How to check? Thanks, L x -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org

Have you installed the VirtualBox Extension Pack? http://download.virtualbox.org/virtualbox/4.1.8/Oracle_VM_VirtualBox_Extensi...

Have you installed the Guest Additions: https://www.virtualbox.org/manual/ch04.html#idp9523904

The Guest Additions make a HUGE difference in the graphics performance of your guest machines.

C.

Hi No. I only have the 4.1.4 from the 12.1 Would that make a difference? Thanks, L -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org

On 03/07/2012 05:35 PM, C wrote:

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Have you installed the VirtualBox Extension Pack?

http://download.virtualbox.org/virtualbox/4.1.8/Oracle_VM_VirtualBox_Extensi...

Have you installed the Guest Additions: https://www.virtualbox.org/manual/ch04.html#idp9523904

The Guest Additions make a HUGE difference in the graphics performance of your guest machines.

Hi No. I only have the 4.1.4 from the 12.1 Would that make a difference? Thanks, If you have VBox 4.1.4 and you want the extensions you need to install

On Wed, Mar 7, 2012 at 17:30, lynn wrote: the same version as the base install. I linked the current 4.1.8 because that's the current release.

More important is that you have the Guest Additions installed - those are available in both the openSUSE rolled edition and the version you download direct. Just install as documented - you will need gcc and the kernel dev packages in your guest Linux OS.

C. Hi No difference I'm afraid. 4.8.1 is the same. I noticed that the guest took the default kernel but the host is running desktop. Would that make any difference? I took both host and kernel modules from Yast, or rather, it took them for me. Does the oracle install offer anything better?

This is really frustrating since windows 7 runs fine under the same host. L x -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org

On Thu, Mar 8, 2012 at 09:29, lynn wrote:

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More important is that you have the Guest Additions installed - those are available in both the openSUSE rolled edition and the version you download direct. Just install as documented - you will need gcc and the kernel dev packages in your guest Linux OS.

Hi No difference I'm afraid. 4.8.1 is the same. I noticed that the guest took the default kernel but the host is running desktop. Would that make any difference? I took both host and kernel modules from Yast, or rather, it took them for me. Does the oracle install offer anything better?

This is really frustrating since windows 7 runs fine under the same host. Default vs Desktop kernel shouldn't make any difference.

I use the Oracle built RPM... other than the Oracle one being more current (ie you don't have to wait on the openSUSE version to be built) I don't see any noticeable difference between the two.

When you say unusable... how unusable? Just slow? Not responsive? Have you explicitly disabled the desktop compositing in the KDE4 guest? Have you installed the Guest Addons (compiles drivers for video etc) and restarted the Guest?

Are you running a 32 bit guest or a 64 bit guest? If it's a 64 bit guest, have you double checked to make sure that the VBox configuration is actually set to 64 bit, and not 32 bit. I've seen performance hits from doing this.

Look at the configuration for your Linux VM... does Enable IO APIC have a check next to it? If not, enable it and try booting your Linux guest. If this is disabled, your guest can slow to a crawl.

Is your host CPU capable of the Virtualization extensions, and if yet, are they enabled in the host's BIOS? VBox can do software virtualization without hardware extensions, but it comes with a performance hit on the guest side.

If I think of something else... I'll post back here later :-)

C. Thanks for the effort. I've tried everything too. I'll have to accept

On 03/08/2012 09:53 AM, C wrote: that Linux guests run slower. There is also another variable in that the vb that ships with 12.1 has a bug which prevents text mode working with some guests:-( Anyway, it's here for the record. L x -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org

On 03/09/2012 06:07 PM, C wrote:

On Fri, Mar 9, 2012 at 17:03, lynn wrote:

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Thanks for the effort. I've tried everything too. I'll have to accept that Linux guests run slower. There is also another variable in that the vb that ships with 12.1 has a bug which prevents text mode working with some guests:-( Anyway, it's here for the record. Hmmmm I have no idea beyond the very low RAM on the host side.

I run VirtualBox VMs all the time... multiple ones side by side (more than one VM running at a time) and I have full compositing turned on etc. My system... AMD 3.4GHz Quadcore, 16GB RAM and a nVidia video card. I usually allocate 1.5 to 2GB RAM to each Linux guest and max out the video RAM slider. Otherwise all defaults on the individual VM setup. VirtualBox is the one from Oracle (although the one on the openSUSE repos should be the same) with the VBox extensions installed... and each guest *always* has the VBox Addons installed as the very first step after installing.

I ran this also on an AMD dual core with 8GB RAM with no speed issues.

Point to note... running VirtualBox on a Lenovo laptop with a T2400 1.8GHz CPU and 3GB of RAM... all Linux guests running on a Windows host ran slow... so slow they were unusable.

Sorry there was no good solution for you.

C. Yes. This confirms that it not possible on what I have. An 32 bit amd, 2G and 128M shared graphics.

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