[Mageia-dev] Please remove qemu, and qemu-img from Mageia 3.

Tue Feb 12 20:36:12 CET 2013

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