QEMU question / easy accelerator for this ?

stu7 · 11-24-2010, 12:31 AM

Ive been working with QEMU, and seen that it is fast
enough to test new iso-s, but not really fast enough
for normal usage, so, I began looking at "accelerators",
but still not finding a workable one.

Along these same lines, Ive read how much faster KVM is
supposed to be, and tried installing this several times,
but the whole effort seems to end when script asks for
a modified kernel or kernel module... I get lost there.

So, Im wondering - is there something in between ? An
accelerator for QEMU as easy to install and use as QEMU
itself ? What am I missing here ?
I have seen kqemu mentioned, but not really finding
source or document explaining use/installation.

any advice for this ?

thanks for looking

jefro · 11-24-2010, 04:17 PM

The accelerator was Kqemu. It may or may not have been compiled in your version or may not have been enabled.

What OS is the host OS? (normal booted to OS)

TobiSGD · 11-24-2010, 04:37 PM

Kqemu is, if I remember correctly, only available for older qemu-versions. It would be interesting to know which processor-type you are using (so exact as you can), to see if you have hardware support for virtualization for using qemu-kvm.

stu7 · 11-24-2010, 06:20 PM

Quote:

Originally Posted by jefro

The accelerator was Kqemu. It may or may not have been compiled in your version or may not have been enabled.

What OS is the host OS? (normal booted to OS)

oops... right... Im using puppylinux, but also tried with debian (Lenny)

on the compiling issue, I tried to load all dependencies, but have not
specifically compiled kqemu... will look for that.

stu7 · 11-24-2010, 06:22 PM

Quote:

Originally Posted by TobiSGD

Kqemu is, if I remember correctly, only available for older qemu-versions. It would be interesting to know which processor-type you are using (so exact as you can), to see if you have hardware support for virtualization for using qemu-kvm.

right... well, I did run a test when trying to install KVM in fact,
which indicated I did not have virtualization support... thats nice
to know, except that Ive been happilly using qemu the whole time...
this is virtualization is it not ? stumped now.

As I mentioned, I had done some reading, and recall
seeing several accelerators(?) I cant seem to get
beyond qemu however.

TobiSGD · 11-25-2010, 04:58 AM

Quote:

Originally Posted by stu7

right... well, I did run a test when trying to install KVM in fact,
which indicated I did not have virtualization support... thats nice
to know, except that Ive been happilly using qemu the whole time...
this is virtualization is it not ? stumped now.

As I mentioned, I had done some reading, and recall
seeing several accelerators(?) I cant seem to get
beyond qemu however.

Qemu (Virtualbox too) can virtualize without hardware support. In fact, hardware virtualization is only used to virtualize x86 and amd64 systems, it is not possible with sparc, arm, ppc, ... . Using hardware virtualization speeds up things a lot.

From Wikipedia:

Quote:

QEMU versions starting with 0.12.0 (as of August 2009) by default support large memory which makes them incompatible with KQEMU.

So if you want to use kqemu you have to use an older version of qemu.

stu7 · 11-25-2010, 03:36 PM

Quote:

Originally Posted by TobiSGD

Qemu (Virtualbox too) can virtualize without hardware support. In fact, hardware virtualization is only used to virtualize x86 and amd64 systems, it is not possible with sparc, arm, ppc, ... . Using hardware virtualization speeds up things a lot.

From Wikipedia: So if you want to use kqemu you have to use an older version of qemu.

looking at older / thanks