[fedora-virt] question - installation speed F11 Beta VM on F11 Beta physical

Thu Apr 16 13:24:58 UTC 2009

Hi Mike,

Sorry - I'm a bit behind on mail.

On Thu, 2009-04-09 at 12:54 -0500, mike.hinz at yr20.com wrote:
> Mark,
> 
> I'm sure that my config is correct.  The cpu is a very recent Xeon and
> I've turned on VT support in the bios.  I'm including the relevent
> tests, at least as I understand them, to make sure I'm running the
> correct stuff.  FYI, I installed the VM via virt-manager version
> 0.7.0.  
> 
> The installation of F11 on the guess still appears to me to be
> extremely slow, but it appears to be using the network versus the
> physical DVD, for the most part.

What kernel version do you have on the host?

I recently fixed a bug which might have caused this:

  https://bugzilla.redhat.com/490266

That fix is in rawhide since kernel-2.6.29-21.fc11

Cheers,
Mark.

>   Additionally I see some different dialog during the installation on
> the VM versus on a physical machine.  It asks for some info about
> Ethernet and IP config that doesn't seem to happen on the physical
> machine.   Then I can clearly see the DVD hardly being accessed while
> the network activity is going crazy during the installation.  Furhter
> info:  When the installation is done on the VM, F11 is completely up
> to date!!  This makes me think that somehow the issue is that the
> installaion on the VM is network based, after initially happening from
> the DVD.  Also, just fyi, I've tried both a bridged network and the
> default NAT connectivity with absolutely no difference.
> 
> Thanks for your help on this!
> 
> Here's some output from /proc/cpuinfo:
> 
> [root at vmh2 qemu]# grep -E 'svm|vmx' /proc/cpuinfo
> flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
> cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall
> nx lm constant_tsc arch_perfmon pebs bts rep_good pni dtes64 monitor
> ds_cpl vmx esttm2 ssse3 cx16 xtpr pdcm lahf_lm tpr_shadow vnmi
> flexpriority
> 
> 
> Here's the output of lsmod
> 
> [root at vmh2 qemu]# lsmod | grep kvm
> kvm_intel              47880  3
> kvm                   152184  1 kvm_intel
> 
> Here's what virsh thinks is going on:
> 
> [root at vmh2 qemu]# virsh capabilities | grep kvm
>       <domain type='kvm'>
>         <emulator>/usr/bin/qemu-kvm</emulator>
>       <domain type='kvm'>
>         <emulator>/usr/bin/qemu-kvm</emulator
> 
> Finally, here's the first part of the guest's log file.  Please note
> that the 'ballon' info is repeated literally thousands of times in the
> log, so I'm only including the very top of the file:
> 
> LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin /usr/bin/qemu-kvm -S -M pc
> -m 4000 -smp 1 -name vm1 -uuid 5e738733-04
> e7-2eaf-f1fa-0f09865d53d5 -monitor pty
> -pidfile /var/run/libvirt/qemu//vm1.pid -no-reboot -boot d -drive
> file=/de
> v/sr0,if=ide,media=cdrom,index=2 -drive
> file=/var/lib/libvirt/images/vm1.img,if=virtio,index=0 -net
> nic,macaddr=5
> 4:52:00:70:ca:09,vlan=0,model=virtio -net
> tap,fd=20,script=,vlan=0,ifname=vnet0 -serial pty -parallel none -usb
> -
> usbdevice tablet -vnc 127.0.0.1:0 -k en-us -soundhw es1370
> char device redirected to /dev/pts/2
> char device redirected to /dev/pts/3
> ALSA lib pulse.c:272:(pulse_connect) PulseAudio: Unable to connect:
> Connection refused
> 
> file mcoputils.cc: line 499 (static std::string
> Arts::MCOPUtils::mcopDirectory()): assertion failed: (home != 0)
> HOME environment variable not set?
> info cpus
> * CPU #0: pc=0x00000000000ffff0 thread_id=29781
> cont
> balloon 4000
> info balloon
> balloon: actual=4000
> info balloon
> 
> 
> Regards,
> 
>  
> 
> Mike Hinz
> President
> YR20
> 1718 Fry Road, Suite 440
> Houston, TX  77084
> mike.hinz at yr20.com
> 832-225-1293 (o)
> 713-594-3095 (m)
> 832-550-2657 (f)
> 
> 
> -----Original Message-----
> From: "Mark McLoughlin" <markmc at redhat.com>
> Sent: Thursday, April 9, 2009 11:58am
> To: mike.hinz at yr20.com
> Cc: fedora-virt at redhat.com
> Subject: Re: [fedora-virt] question - installation speed F11 Beta VM
> on F11 Beta physical
> 
> On Wed, 2009-04-08 at 16:52 -0500, mike.hinz at yr20.com wrote:
> > Hi,
> > 
> > I have an F11 Beta server, fully updated to the latest and greatest
> > from rawhide.  I've noticed that whenever I try to install F11 beta
> in
> > a VM, it installs really, really slowly, may 2 orders of magnitude
> > slower than on the phyical machine.  The physical server is a single
> > processor quad-core Xeon with 8GB of RAM.  I've set the VM to have
> 4GB
> > RAM w/2 cpus. 
> > 
> > It appears that the installation seems to be occcuring from the
> > network versus the DVD.  Why would this be and how can I speed up
> this
> > incredibly slow process?
> 
> There's a good chance you're using plain QEMU instead of KVM. Does
> your
> machine have hardware virt support? Is the kvm_intel module loaded? Is
> qemu-system-x86_64 running or qemu-kvm? What's in the guest's log file
> in /var/log/libvirt/qemu/ ?
> 
> Cheers,
> Mark.
> 
> 