virtualbox.org

Recently installed Ubuntu 12.04 on Windows 8 with VB 4.2.6 and it is running unusually slow - it runs just fine on my laptop, as fast as the native Windows 8 install so this is an anomaly, considering my desktop is equipped with MUCH better hardware.

From what I've read most of the issues stem from having 3D acceleration disabled - which I've already enabled. I gave it the full 128MB of video memory, almost 10GB of RAM, and it's still rather slow. I've also checked to make sure 3D acceleration is enabled with the /usr/lib/nux/unity_support_test -p command it all checks out. What else could be going on? At first I thought it may be the fact that I allocated the VDI to my secondary HDD, but after deleting that install and installing a fresh one on the native SSD that my host is on, it made no difference.

Here's my rough specs if it'll help:

Windows 8 64-bit (Ubuntu guest is also 64-bit)
Intel i7-2600k CPU
16GB RAM
3x NVidia GTX Titan GPU's
1400W PSU
512gb Samsung SSD

Any thoughts on what might be causing the sluggishness would be appreciated!

EDIT: Additional information:

Host: Windows 8 64-bit
Guest: Ubuntu 12.04 64-bit, given 10GB RAM and 128 Video Memory
VirtualBox 4.2.6

Thanks!

[FIXED] Updated VirtualBox to the latest version (4.3.6) and that sped things up quite nicely.

Run the following in the guests terminal and see if it mentions chromium & humper.

Perryg wrote:Run the following in the guests terminal and see if it mentions chromium & humper.

Code: Select all

glxinfo | grep OpenGL

This is what it mentions:

Then you need to post the guests log file ( as an attachment )

Perryg wrote:Then you need to post the guests log file ( as an attachment )

I did, it's in the original post

I don't see a reason for the guest to be running slow. One thing that you might try it to drop the RAM to just below 3GB and see if that makes a difference.

Perryg wrote:I don't see a reason for the guest to be running slow. One thing that you might try it to drop the RAM to just below 3GB and see if that makes a difference.

Why would that help? I tried that and it didn't seem to do anything. This is crazy. Could it have something to do with my hardware at all? I'm going to try updating to 4.3.6 and see if that helps at all. I've already updated Ubuntu from the update manager and through apt-get upgrade and those didn't seem to help much.

This is so weird - I have the exact same setup on my laptop and that seems to run perfectly fine.

...And that did it. I was running 4.2.6 and upgraded to the latest version (4.3.6) and that sped things up remarkably. Thanks for the help guys!