Mailinglist Archive: opensuse (1445 mails)

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Re: [opensuse] 12.1 v slow as virtualbox guest
On 03/08/2012 09:53 AM, C wrote:
On Thu, Mar 8, 2012 at 09:29, lynn<lynn@xxxxxxxxxxxx> wrote:
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 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
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