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-   -   qemu/kvm, virt-manager (poor performance) and aqemu (many segmentation faults) (https://www.linuxquestions.org/questions/slackware-14/qemu-kvm-virt-manager-poor-performance-and-aqemu-many-segmentation-faults-815196/)

hakan56 06-23-2010 11:56 PM

It works!:)
Successfully installed both SalixOS and Windows XP (a lot of missed drivers there, but that's another story ;))

I think I will use the "cli" for now, and also look for further releases of Aqemu for the "gui".

It's so much easier (and fun) to learn from examples then to be left alone with the man-pages, so extra credit to you "disturbed1" for your effort to provide it.

Thank you very much. :hattip:

/Håkan

Slax-Dude 07-06-2010 10:53 AM

Like all of you, I had a much faster VM when using the kvm-qemu from command line, compared to running it (the same VM) from libvirtd / virt-manager.

I noticed that libvirtd was not recognizing my kvm package, and was using qemu only (not using kvm kernel module) which was the reason for the huge performance difference.
This happened because libvirtd, stupidly, searches for the /usr/bin/kvm and /usr/bin/qemu-kvm files to determine if you have kvm installed on your system...
Since neither one was there, it assumed I had "normal" qemu installed, and used it to run the VMs... slowly...

A simple
Code:

ln -s /usr/bin/qemu /usr/bin/kvm
solved that problem.

Found this stuff after stumbling on this http://wiki.libvirt.org/page/Tips#Li...isor_.28KVM.29

Hope it solves your problems with virt-manager as well :)

integrale16 07-13-2010 01:06 PM

Thanks for the solution.

But for the moment, I'm relatively happy with AQEMU. It's getting more and more stable, and it's just one package compared to the lots of dependencies of virt-manager. So for me it's much easier to maintain and I just use it on my desktop computer and therefore it's exactly what I need.

But if I will need remote administration capabilities to my virtual machines in the future, I think I will give it a try again.


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