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<H1>[Mageia-dev] Please remove qemu, and qemu-img from Mageia 3.</H1>
<B>Buchan Milne</B>
<A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20Please%20remove%20qemu%2C%20and%20qemu-img%20from%20Mageia%203.&In-Reply-To=%3C1773505691.1843537.1360697772711.JavaMail.root%40zimbra8-vm1.telkomsa.net%3E"
TITLE="[Mageia-dev] Please remove qemu, and qemu-img from Mageia 3.">bgmilne at staff.telkomsa.net
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<I>Tue Feb 12 20:36:12 CET 2013</I>
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<PRE>
----- Original Message -----
><i> On Sun, 03 Feb 2013 04:16:54 -0500, Pascal Terjan <<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">pterjan at gmail.com</A>>
</I>><i> wrote:
</I>><i>
</I>><i> > On Sun, Feb 3, 2013 at 9:45 AM, David W. Hodgins
</I>><i> > <<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">davidwhodgins at gmail.com</A>> wrote:
</I>><i> >> During testing of updates to qemu, and x11-driver-video-qxl,
</I>><i> >> it has become very clear that no-one could possibly be using
</I>><i> >> these packages, as they are so slow, as to be useless.
</I>><i> >
</I>><i> > Try loading kvm module and selecting the fast drivers for
</I>><i> > network/disk/...
</I>><i>
</I>><i> lsmod|grep kvm
</I>><i> kvm_amd 55516 0
</I>><i> kvm 413942 1 kvm_amd
</I>><i>
</I>><i> Whether it's loaded or not doesn't seem to make any difference.
</I>><i>
</I>><i> If I add the -enable-kvm option, it fails with ...
</I>><i> KVM not supported for this target
</I>><i> No accelerator found!
</I>
There isn't much point letting it proceed.
><i> Checking under htop shows it's clearly cpu bound, using 2 of my 4
</I>><i> cores.
</I>><i>
</I>><i> The command I used to run qemu was ...
</I>><i> qemu-system-x86_64 -cdrom "$Iso" -hda mageia"$Arch".qcow2 -boot d -net
</I>><i> nic
</I>><i> -net user,net=192.168.10.0/16,host=192.168.10.3 -m 4096 -vga qxl
</I>><i> with the Iso and Arch variables set appropriately.
</I>><i>
</I>><i> Suggestions for faster disk/network options?
</I>
It's significantly easier with libvirtd and virt-manager, but there's not much point if you haven't got hardware virtualisation enabled.
><i> Given that other people do find it useful, it's obvious there's
</I>><i> something
</I>><i> wrong either with the options I'm using (or not using), or my hardware
</I>><i> or
</I>><i> bios settings.
</I>><i>
</I>><i> Hopefully it's not the hardware. The cpu is an AMD FX(tm)-4170
</I>><i> Quad-Core
</I>><i> Processor, with the following flags shown in /proc/cpuinfo ...
</I>><i> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
</I>><i> cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
</I>><i> pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid
</I>><i> aperfmperf pni pclmulqdq monitor ssse3 cx16 sse4_1 sse4_2 popcnt aes
</I>><i> xsave
</I>><i> avx lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse
</I>><i> 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 nodeid_msr topoext
</I>><i> perfctr
</I>><i> core arat cpb hw_pstate npt lbrv svm_lock nrip_save tsc_scale
</I>><i> vmcb_clean
</I>><i> flushbyasid decodeassists pausefilter pfthreshold
</I>
svm is the flag in question for basic hardware virtualisation on AMD (vmx for Intel), however many BIOSs ship with hardware virtualisation disabled by default.
Regards,
Buchan
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