[Qemu-devel] [Bug 1318830] Re: High CPU usage on windows virtual machine

[Qemu-devel] [Bug 1318830] Re: High CPU usage on windows virtual machine

[Serge Hallyn]

** Package changed: libvirt (Ubuntu) => qemu (Ubuntu)

** Also affects: qemu
   Importance: Undecided
       Status: New

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1318830

Title:
  High CPU usage on windows virtual machine

Status in QEMU:
  New
Status in “qemu” package in Ubuntu:
  New

Bug description:
  I got Ubuntu 14.04, with Qemu 2.0 and moved my windows VM to this new box, and made sure that what this article indicates was achieved
  https://www.kraxel.org/blog/2014/03/qemu-and-usb-tablet-cpu-consumtion/
  I can attest that it works following the instructions, erasing the registry, etc.
  Unfortunately, with 4 cpus as below, I still see 60% CPU outside as shown by "Top" versus 0% CPU inside. My Kernel is 3.15.0-031500rc4-generic
  If some developer wants to log in and take a look, I am happy to help. The box is not in production and I take full responsibility. Until this is solved, KVM is not going to compete with Hyper-V or Vmware.  Basically KVM is not suitable for the Enterprise as of yet.

  qemu-system-x86_64 -enable-kvm -name Production -S -machine pc-
  i440fx-2.0,accel=kvm,usb=off -cpu
  kvm64,+rdtscp,+pdpe1gb,+x2apic,+dca,+pcid,+pdcm,+xtpr,+tm2,+est,+smx,+vmx,+ds_cpl,+monitor,+dtes64,+pclmuldq,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme,hv_relaxed,hv_vapic,hv_spinlocks=0xfff
  -m 4024 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -uuid
  e8701c5c-b542-0199-fd2a-1047df24770e -no-user-config -nodefaults
  -chardev
  socket,id=charmonitor,path=/var/lib/libvirt/qemu/Production.monitor,server,nowait
  -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
  -no-shutdown -boot strict=on -device piix3-usb-
  uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
  file=/var/lib/libvirt/images/Production.img,if=none,id=drive-virtio-
  disk0,format=raw -device virtio-blk-
  pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-
  disk0,bootindex=1 -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31
  -device virtio-net-
  pci,netdev=hostnet0,id=net0,mac=00:16:3a:d2:cd:ea,bus=pci.0,addr=0x3
  -netdev tap,fd=35,id=hostnet1,vhost=on,vhostfd=36 -device virtio-net-
  pci,netdev=hostnet1,id=net1,mac=52:54:00:70:fe:54,bus=pci.0,addr=0x4
  -chardev pty,id=charserial0 -device isa-
  serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
  -vnc 127.0.0.1:0 -device VGA,id=video0,bus=pci.0,addr=0x2 -device
  intel-hda,id=sound0,bus=pci.0,addr=0x5 -device hda-
  duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-
  pci,id=balloon0,bus=pci.0,addr=0x7

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1318830/+subscriptions

[Qemu-devel] [Bug 1318830] Re: High CPU usage on windows virtual machine

[Serge Hallyn]

Hi,

could you please try adding hyperv to the vm options, as shown here:

https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1308341/comments/10

Please let us know if that helps.

** Changed in: qemu (Ubuntu)
       Status: New => Incomplete

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1318830

Title:
  High CPU usage on windows virtual machine

Status in QEMU:
  New
Status in “qemu” package in Ubuntu:
  Incomplete

Bug description:
  I got Ubuntu 14.04, with Qemu 2.0 and moved my windows VM to this new box, and made sure that what this article indicates was achieved
  https://www.kraxel.org/blog/2014/03/qemu-and-usb-tablet-cpu-consumtion/
  I can attest that it works following the instructions, erasing the registry, etc.
  Unfortunately, with 4 cpus as below, I still see 60% CPU outside as shown by "Top" versus 0% CPU inside. My Kernel is 3.15.0-031500rc4-generic
  If some developer wants to log in and take a look, I am happy to help. The box is not in production and I take full responsibility. Until this is solved, KVM is not going to compete with Hyper-V or Vmware.  Basically KVM is not suitable for the Enterprise as of yet.

  qemu-system-x86_64 -enable-kvm -name Production -S -machine pc-
  i440fx-2.0,accel=kvm,usb=off -cpu
  kvm64,+rdtscp,+pdpe1gb,+x2apic,+dca,+pcid,+pdcm,+xtpr,+tm2,+est,+smx,+vmx,+ds_cpl,+monitor,+dtes64,+pclmuldq,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme,hv_relaxed,hv_vapic,hv_spinlocks=0xfff
  -m 4024 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -uuid
  e8701c5c-b542-0199-fd2a-1047df24770e -no-user-config -nodefaults
  -chardev
  socket,id=charmonitor,path=/var/lib/libvirt/qemu/Production.monitor,server,nowait
  -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
  -no-shutdown -boot strict=on -device piix3-usb-
  uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
  file=/var/lib/libvirt/images/Production.img,if=none,id=drive-virtio-
  disk0,format=raw -device virtio-blk-
  pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-
  disk0,bootindex=1 -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31
  -device virtio-net-
  pci,netdev=hostnet0,id=net0,mac=00:16:3a:d2:cd:ea,bus=pci.0,addr=0x3
  -netdev tap,fd=35,id=hostnet1,vhost=on,vhostfd=36 -device virtio-net-
  pci,netdev=hostnet1,id=net1,mac=52:54:00:70:fe:54,bus=pci.0,addr=0x4
  -chardev pty,id=charserial0 -device isa-
  serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
  -vnc 127.0.0.1:0 -device VGA,id=video0,bus=pci.0,addr=0x2 -device
  intel-hda,id=sound0,bus=pci.0,addr=0x5 -device hda-
  duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-
  pci,id=balloon0,bus=pci.0,addr=0x7

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1318830/+subscriptions

[Qemu-devel] [Bug 1318830] Re: High CPU usage on windows virtual machine

[Boyan Stoyanovich]

I have this problem also using Debian Wheezy with backported qemu-
kvm-2.0.0, CPU usage for idle Windows machine ,using top to measure ,is
constantly >30% (while in Windows Task Manager >5%), while Linux VM
beside is working fine (CPU >5%) when idle...

Here are the details about packages used and qemu-kvm process:

root@bojan:~# uname -a
Linux bojan 3.2.0-4-amd64 #1 SMP Debian 3.2.60-1+deb7u1 x86_64 GNU/Linux
root@bojan:~# dpkg -l | egrep '(qemu|kvm|spice)'
ii  ipxe-qemu                             1.0.0+git-20120202.f6840ba-3       all          PXE boot firmware - ROM images for qemu
ii  libspice-client-glib-2.0-1:amd64      0.12-5                             amd64        GObject for communicating with Spice servers (runtime library)
ii  libspice-client-gtk-2.0-1:amd64       0.12-5                             amd64        GTK2 widget for SPICE clients (runtime library)
ii  libspice-server1:amd64                0.12.4-0nocelt2~bpo70+1            amd64        Implements the server side of the SPICE protocol
ii  python-spice-client-gtk               0.12-5                             amd64        GTK2 widget for SPICE clients (Python binding)
ii  qemu-keymaps                          1.1.2+dfsg-6a+deb7u3               all          QEMU keyboard maps
ii  qemu-kvm                              2.0.0+dfsg-4~bpo70+1               amd64        QEMU Full virtualization on x86 hardware (transitional package)
rc  qemu-system                           2.0.0+dfsg-4~bpo70+1               amd64        QEMU full system emulation binaries
ii  qemu-system-common                    2.0.0+dfsg-4~bpo70+1               amd64        QEMU full system emulation binaries (common files)
ii  qemu-system-x86                       2.0.0+dfsg-4~bpo70+1               amd64        QEMU full system emulation binaries (x86)
ii  qemu-utils                            2.0.0+dfsg-4~bpo70+1               amd64        QEMU utilities

115      18212 36.1 35.4 2727568 2154604 ?     Sl   10:07   4:08 qemu-
system-x86_64 -enable-kvm -name Win7ENTx64 -S -machine pc-
i440fx-2.0,accel=kvm,usb=off -cpu
SandyBridge,+erms,+smep,+fsgsbase,+rdrand,+f16c,+osxsave,+pcid,+pdcm,+xtpr,+tm2,+est,+vmx,+ds_cpl,+monitor,+dtes64,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme
-m 2048 -realtime mlock=off -smp 2,sockets=2,cores=1,threads=1 -uuid
c1be1529-83e4-82f1-5277-d82cb0e853b4 -no-user-config -nodefaults
-chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/Win7ENTx64.monitor,server,nowait
-mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
-no-shutdown -boot strict=on -device piix3-usb-
uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device virtio-serial-pci,id=virtio-
serial0,bus=pci.0,addr=0x7 -drive
file=/var/lib/libvirt/images/Win7ENTx64.qcow2,if=none,id=drive-virtio-
disk0,format=qcow2 -device virtio-blk-
pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-
disk0,bootindex=1 -drive
file=/var/lib/libvirt/images/Microsoft_Windows_7_Enterprise_x64_SP1.ISO,if=none,id
=drive-ide0-1-0,readonly=on,format=raw -device ide-
cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev
tap,fd=25,id=hostnet0,vhost=on,vhostfd=26 -device virtio-net-
pci,netdev=hostnet0,id=net0,mac=52:54:00:ac:2b:78,bus=pci.0,addr=0x3
-chardev pty,id=charserial0 -device isa-
serial,chardev=charserial0,id=serial0 -chardev
spicevmc,id=charchannel0,name=vdagent -device virtserialport,bus=virtio-
serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0
-device usb-tablet,id=input0 -spice port=5901,addr=127.0.0.1,disable-
ticketing,seamless-migration=on -device VGA,id=video0,bus=pci.0,addr=0x2
-device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-
duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-
pci,id=balloon0,bus=pci.0,addr=0x6

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1318830

Title:
  High CPU usage on windows virtual machine

Status in QEMU:
  New
Status in “qemu” package in Ubuntu:
  Incomplete

Bug description:
  I got Ubuntu 14.04, with Qemu 2.0 and moved my windows VM to this new box, and made sure that what this article indicates was achieved
  https://www.kraxel.org/blog/2014/03/qemu-and-usb-tablet-cpu-consumtion/
  I can attest that it works following the instructions, erasing the registry, etc.
  Unfortunately, with 4 cpus as below, I still see 60% CPU outside as shown by "Top" versus 0% CPU inside. My Kernel is 3.15.0-031500rc4-generic
  If some developer wants to log in and take a look, I am happy to help. The box is not in production and I take full responsibility. Until this is solved, KVM is not going to compete with Hyper-V or Vmware.  Basically KVM is not suitable for the Enterprise as of yet.

  qemu-system-x86_64 -enable-kvm -name Production -S -machine pc-
  i440fx-2.0,accel=kvm,usb=off -cpu
  kvm64,+rdtscp,+pdpe1gb,+x2apic,+dca,+pcid,+pdcm,+xtpr,+tm2,+est,+smx,+vmx,+ds_cpl,+monitor,+dtes64,+pclmuldq,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme,hv_relaxed,hv_vapic,hv_spinlocks=0xfff
  -m 4024 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -uuid
  e8701c5c-b542-0199-fd2a-1047df24770e -no-user-config -nodefaults
  -chardev
  socket,id=charmonitor,path=/var/lib/libvirt/qemu/Production.monitor,server,nowait
  -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
  -no-shutdown -boot strict=on -device piix3-usb-
  uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
  file=/var/lib/libvirt/images/Production.img,if=none,id=drive-virtio-
  disk0,format=raw -device virtio-blk-
  pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-
  disk0,bootindex=1 -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31
  -device virtio-net-
  pci,netdev=hostnet0,id=net0,mac=00:16:3a:d2:cd:ea,bus=pci.0,addr=0x3
  -netdev tap,fd=35,id=hostnet1,vhost=on,vhostfd=36 -device virtio-net-
  pci,netdev=hostnet1,id=net1,mac=52:54:00:70:fe:54,bus=pci.0,addr=0x4
  -chardev pty,id=charserial0 -device isa-
  serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
  -vnc 127.0.0.1:0 -device VGA,id=video0,bus=pci.0,addr=0x2 -device
  intel-hda,id=sound0,bus=pci.0,addr=0x5 -device hda-
  duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-
  pci,id=balloon0,bus=pci.0,addr=0x7

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1318830/+subscriptions

[Qemu-devel] [Bug 1318830] Re: High CPU usage on windows virtual machine

[Boyan Stoyanovich]

P.S. I have tried above suggested (adding hyperv to the vm options...)
soultion, but it doesn't help.

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1318830

Title:
  High CPU usage on windows virtual machine

Status in QEMU:
  New
Status in “qemu” package in Ubuntu:
  Incomplete

Bug description:
  I got Ubuntu 14.04, with Qemu 2.0 and moved my windows VM to this new box, and made sure that what this article indicates was achieved
  https://www.kraxel.org/blog/2014/03/qemu-and-usb-tablet-cpu-consumtion/
  I can attest that it works following the instructions, erasing the registry, etc.
  Unfortunately, with 4 cpus as below, I still see 60% CPU outside as shown by "Top" versus 0% CPU inside. My Kernel is 3.15.0-031500rc4-generic
  If some developer wants to log in and take a look, I am happy to help. The box is not in production and I take full responsibility. Until this is solved, KVM is not going to compete with Hyper-V or Vmware.  Basically KVM is not suitable for the Enterprise as of yet.

  qemu-system-x86_64 -enable-kvm -name Production -S -machine pc-
  i440fx-2.0,accel=kvm,usb=off -cpu
  kvm64,+rdtscp,+pdpe1gb,+x2apic,+dca,+pcid,+pdcm,+xtpr,+tm2,+est,+smx,+vmx,+ds_cpl,+monitor,+dtes64,+pclmuldq,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme,hv_relaxed,hv_vapic,hv_spinlocks=0xfff
  -m 4024 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -uuid
  e8701c5c-b542-0199-fd2a-1047df24770e -no-user-config -nodefaults
  -chardev
  socket,id=charmonitor,path=/var/lib/libvirt/qemu/Production.monitor,server,nowait
  -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
  -no-shutdown -boot strict=on -device piix3-usb-
  uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
  file=/var/lib/libvirt/images/Production.img,if=none,id=drive-virtio-
  disk0,format=raw -device virtio-blk-
  pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-
  disk0,bootindex=1 -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31
  -device virtio-net-
  pci,netdev=hostnet0,id=net0,mac=00:16:3a:d2:cd:ea,bus=pci.0,addr=0x3
  -netdev tap,fd=35,id=hostnet1,vhost=on,vhostfd=36 -device virtio-net-
  pci,netdev=hostnet1,id=net1,mac=52:54:00:70:fe:54,bus=pci.0,addr=0x4
  -chardev pty,id=charserial0 -device isa-
  serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
  -vnc 127.0.0.1:0 -device VGA,id=video0,bus=pci.0,addr=0x2 -device
  intel-hda,id=sound0,bus=pci.0,addr=0x5 -device hda-
  duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-
  pci,id=balloon0,bus=pci.0,addr=0x7

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1318830/+subscriptions

[Qemu-devel] [Bug 1318830] Re: High CPU usage on windows virtual machine

[Boyan Stoyanovich]

Typo correction:

CPU usage for idle Windows machine, using top to measure, is constantly
>30% (while in Windows Task Manager <5%), while Linux VM beside is
working fine (CPU <5%) when idle...

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1318830

Title:
  High CPU usage on windows virtual machine

Status in QEMU:
  New
Status in “qemu” package in Ubuntu:
  Incomplete

Bug description:
  I got Ubuntu 14.04, with Qemu 2.0 and moved my windows VM to this new box, and made sure that what this article indicates was achieved
  https://www.kraxel.org/blog/2014/03/qemu-and-usb-tablet-cpu-consumtion/
  I can attest that it works following the instructions, erasing the registry, etc.
  Unfortunately, with 4 cpus as below, I still see 60% CPU outside as shown by "Top" versus 0% CPU inside. My Kernel is 3.15.0-031500rc4-generic
  If some developer wants to log in and take a look, I am happy to help. The box is not in production and I take full responsibility. Until this is solved, KVM is not going to compete with Hyper-V or Vmware.  Basically KVM is not suitable for the Enterprise as of yet.

  qemu-system-x86_64 -enable-kvm -name Production -S -machine pc-
  i440fx-2.0,accel=kvm,usb=off -cpu
  kvm64,+rdtscp,+pdpe1gb,+x2apic,+dca,+pcid,+pdcm,+xtpr,+tm2,+est,+smx,+vmx,+ds_cpl,+monitor,+dtes64,+pclmuldq,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme,hv_relaxed,hv_vapic,hv_spinlocks=0xfff
  -m 4024 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -uuid
  e8701c5c-b542-0199-fd2a-1047df24770e -no-user-config -nodefaults
  -chardev
  socket,id=charmonitor,path=/var/lib/libvirt/qemu/Production.monitor,server,nowait
  -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
  -no-shutdown -boot strict=on -device piix3-usb-
  uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
  file=/var/lib/libvirt/images/Production.img,if=none,id=drive-virtio-
  disk0,format=raw -device virtio-blk-
  pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-
  disk0,bootindex=1 -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31
  -device virtio-net-
  pci,netdev=hostnet0,id=net0,mac=00:16:3a:d2:cd:ea,bus=pci.0,addr=0x3
  -netdev tap,fd=35,id=hostnet1,vhost=on,vhostfd=36 -device virtio-net-
  pci,netdev=hostnet1,id=net1,mac=52:54:00:70:fe:54,bus=pci.0,addr=0x4
  -chardev pty,id=charserial0 -device isa-
  serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
  -vnc 127.0.0.1:0 -device VGA,id=video0,bus=pci.0,addr=0x2 -device
  intel-hda,id=sound0,bus=pci.0,addr=0x5 -device hda-
  duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-
  pci,id=balloon0,bus=pci.0,addr=0x7

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1318830/+subscriptions

[Qemu-devel] [Bug 1318830] Re: High CPU usage on windows virtual machine

[Serge Hallyn]

** Changed in: qemu (Ubuntu)
       Status: Incomplete => New

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1318830

Title:
  High CPU usage on windows virtual machine

Status in QEMU:
  New
Status in qemu package in Ubuntu:
  New

Bug description:
  I got Ubuntu 14.04, with Qemu 2.0 and moved my windows VM to this new box, and made sure that what this article indicates was achieved
  https://www.kraxel.org/blog/2014/03/qemu-and-usb-tablet-cpu-consumtion/
  I can attest that it works following the instructions, erasing the registry, etc.
  Unfortunately, with 4 cpus as below, I still see 60% CPU outside as shown by "Top" versus 0% CPU inside. My Kernel is 3.15.0-031500rc4-generic
  If some developer wants to log in and take a look, I am happy to help. The box is not in production and I take full responsibility. Until this is solved, KVM is not going to compete with Hyper-V or Vmware.  Basically KVM is not suitable for the Enterprise as of yet.

  qemu-system-x86_64 -enable-kvm -name Production -S -machine pc-
  i440fx-2.0,accel=kvm,usb=off -cpu
  kvm64,+rdtscp,+pdpe1gb,+x2apic,+dca,+pcid,+pdcm,+xtpr,+tm2,+est,+smx,+vmx,+ds_cpl,+monitor,+dtes64,+pclmuldq,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme,hv_relaxed,hv_vapic,hv_spinlocks=0xfff
  -m 4024 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -uuid
  e8701c5c-b542-0199-fd2a-1047df24770e -no-user-config -nodefaults
  -chardev
  socket,id=charmonitor,path=/var/lib/libvirt/qemu/Production.monitor,server,nowait
  -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
  -no-shutdown -boot strict=on -device piix3-usb-
  uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
  file=/var/lib/libvirt/images/Production.img,if=none,id=drive-virtio-
  disk0,format=raw -device virtio-blk-
  pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-
  disk0,bootindex=1 -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31
  -device virtio-net-
  pci,netdev=hostnet0,id=net0,mac=00:16:3a:d2:cd:ea,bus=pci.0,addr=0x3
  -netdev tap,fd=35,id=hostnet1,vhost=on,vhostfd=36 -device virtio-net-
  pci,netdev=hostnet1,id=net1,mac=52:54:00:70:fe:54,bus=pci.0,addr=0x4
  -chardev pty,id=charserial0 -device isa-
  serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
  -vnc 127.0.0.1:0 -device VGA,id=video0,bus=pci.0,addr=0x2 -device
  intel-hda,id=sound0,bus=pci.0,addr=0x5 -device hda-
  duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-
  pci,id=balloon0,bus=pci.0,addr=0x7

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1318830/+subscriptions

[Qemu-devel] [Bug 1318830] Re: High CPU usage on windows virtual machine

[Ryan Harper]

Hi,

Are you running ntp in the host or timekeeping in the guest?  If so, is
the guest clock close to what current time should be?

Also, can you try adding this option:

-global mc146818rtc.lost_tick_policy=slew

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1318830

Title:
  High CPU usage on windows virtual machine

Status in QEMU:
  New
Status in qemu package in Ubuntu:
  New

Bug description:
  I got Ubuntu 14.04, with Qemu 2.0 and moved my windows VM to this new box, and made sure that what this article indicates was achieved
  https://www.kraxel.org/blog/2014/03/qemu-and-usb-tablet-cpu-consumtion/
  I can attest that it works following the instructions, erasing the registry, etc.
  Unfortunately, with 4 cpus as below, I still see 60% CPU outside as shown by "Top" versus 0% CPU inside. My Kernel is 3.15.0-031500rc4-generic
  If some developer wants to log in and take a look, I am happy to help. The box is not in production and I take full responsibility. Until this is solved, KVM is not going to compete with Hyper-V or Vmware.  Basically KVM is not suitable for the Enterprise as of yet.

  qemu-system-x86_64 -enable-kvm -name Production -S -machine pc-
  i440fx-2.0,accel=kvm,usb=off -cpu
  kvm64,+rdtscp,+pdpe1gb,+x2apic,+dca,+pcid,+pdcm,+xtpr,+tm2,+est,+smx,+vmx,+ds_cpl,+monitor,+dtes64,+pclmuldq,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme,hv_relaxed,hv_vapic,hv_spinlocks=0xfff
  -m 4024 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -uuid
  e8701c5c-b542-0199-fd2a-1047df24770e -no-user-config -nodefaults
  -chardev
  socket,id=charmonitor,path=/var/lib/libvirt/qemu/Production.monitor,server,nowait
  -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
  -no-shutdown -boot strict=on -device piix3-usb-
  uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
  file=/var/lib/libvirt/images/Production.img,if=none,id=drive-virtio-
  disk0,format=raw -device virtio-blk-
  pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-
  disk0,bootindex=1 -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31
  -device virtio-net-
  pci,netdev=hostnet0,id=net0,mac=00:16:3a:d2:cd:ea,bus=pci.0,addr=0x3
  -netdev tap,fd=35,id=hostnet1,vhost=on,vhostfd=36 -device virtio-net-
  pci,netdev=hostnet1,id=net1,mac=52:54:00:70:fe:54,bus=pci.0,addr=0x4
  -chardev pty,id=charserial0 -device isa-
  serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
  -vnc 127.0.0.1:0 -device VGA,id=video0,bus=pci.0,addr=0x2 -device
  intel-hda,id=sound0,bus=pci.0,addr=0x5 -device hda-
  duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-
  pci,id=balloon0,bus=pci.0,addr=0x7

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1318830/+subscriptions

Re: [Qemu-devel] [Bug 1318830] Re: High CPU usage on windows virtual machine

[Philip Orleans]

I no longer use KVM. It is unsupported, it seems.
Yours
Federico

On Fri, Jan 16, 2015 at 5:16 PM, Ryan Harper <1318830@bugs.launchpad.net>
wrote:

> Hi,
>
> Are you running ntp in the host or timekeeping in the guest?  If so, is
> the guest clock close to what current time should be?
>
> Also, can you try adding this option:
>
> -global mc146818rtc.lost_tick_policy=slew
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1318830
>
> Title:
>   High CPU usage on windows virtual machine
>
> Status in QEMU:
>   New
> Status in qemu package in Ubuntu:
>   New
>
> Bug description:
>   I got Ubuntu 14.04, with Qemu 2.0 and moved my windows VM to this new
> box, and made sure that what this article indicates was achieved
>   https://www.kraxel.org/blog/2014/03/qemu-and-usb-tablet-cpu-consumtion/
>   I can attest that it works following the instructions, erasing the
> registry, etc.
>   Unfortunately, with 4 cpus as below, I still see 60% CPU outside as
> shown by "Top" versus 0% CPU inside. My Kernel is 3.15.0-031500rc4-generic
>   If some developer wants to log in and take a look, I am happy to help.
> The box is not in production and I take full responsibility. Until this is
> solved, KVM is not going to compete with Hyper-V or Vmware.  Basically KVM
> is not suitable for the Enterprise as of yet.
>
>   qemu-system-x86_64 -enable-kvm -name Production -S -machine pc-
>   i440fx-2.0,accel=kvm,usb=off -cpu
>
> kvm64,+rdtscp,+pdpe1gb,+x2apic,+dca,+pcid,+pdcm,+xtpr,+tm2,+est,+smx,+vmx,+ds_cpl,+monitor,+dtes64,+pclmuldq,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme,hv_relaxed,hv_vapic,hv_spinlocks=0xfff
>   -m 4024 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -uuid
>   e8701c5c-b542-0199-fd2a-1047df24770e -no-user-config -nodefaults
>   -chardev
>
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/Production.monitor,server,nowait
>   -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
>   -no-shutdown -boot strict=on -device piix3-usb-
>   uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
>   file=/var/lib/libvirt/images/Production.img,if=none,id=drive-virtio-
>   disk0,format=raw -device virtio-blk-
>   pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-
>   disk0,bootindex=1 -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31
>   -device virtio-net-
>   pci,netdev=hostnet0,id=net0,mac=00:16:3a:d2:cd:ea,bus=pci.0,addr=0x3
>   -netdev tap,fd=35,id=hostnet1,vhost=on,vhostfd=36 -device virtio-net-
>   pci,netdev=hostnet1,id=net1,mac=52:54:00:70:fe:54,bus=pci.0,addr=0x4
>   -chardev pty,id=charserial0 -device isa-
>   serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
>   -vnc 127.0.0.1:0 -device VGA,id=video0,bus=pci.0,addr=0x2 -device
>   intel-hda,id=sound0,bus=pci.0,addr=0x5 -device hda-
>   duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-
>   pci,id=balloon0,bus=pci.0,addr=0x7
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/qemu/+bug/1318830/+subscriptions
>

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1318830

Title:
  High CPU usage on windows virtual machine

Status in QEMU:
  New
Status in qemu package in Ubuntu:
  New

Bug description:
  I got Ubuntu 14.04, with Qemu 2.0 and moved my windows VM to this new box, and made sure that what this article indicates was achieved
  https://www.kraxel.org/blog/2014/03/qemu-and-usb-tablet-cpu-consumtion/
  I can attest that it works following the instructions, erasing the registry, etc.
  Unfortunately, with 4 cpus as below, I still see 60% CPU outside as shown by "Top" versus 0% CPU inside. My Kernel is 3.15.0-031500rc4-generic
  If some developer wants to log in and take a look, I am happy to help. The box is not in production and I take full responsibility. Until this is solved, KVM is not going to compete with Hyper-V or Vmware.  Basically KVM is not suitable for the Enterprise as of yet.

  qemu-system-x86_64 -enable-kvm -name Production -S -machine pc-
  i440fx-2.0,accel=kvm,usb=off -cpu
  kvm64,+rdtscp,+pdpe1gb,+x2apic,+dca,+pcid,+pdcm,+xtpr,+tm2,+est,+smx,+vmx,+ds_cpl,+monitor,+dtes64,+pclmuldq,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme,hv_relaxed,hv_vapic,hv_spinlocks=0xfff
  -m 4024 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -uuid
  e8701c5c-b542-0199-fd2a-1047df24770e -no-user-config -nodefaults
  -chardev
  socket,id=charmonitor,path=/var/lib/libvirt/qemu/Production.monitor,server,nowait
  -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
  -no-shutdown -boot strict=on -device piix3-usb-
  uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
  file=/var/lib/libvirt/images/Production.img,if=none,id=drive-virtio-
  disk0,format=raw -device virtio-blk-
  pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-
  disk0,bootindex=1 -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31
  -device virtio-net-
  pci,netdev=hostnet0,id=net0,mac=00:16:3a:d2:cd:ea,bus=pci.0,addr=0x3
  -netdev tap,fd=35,id=hostnet1,vhost=on,vhostfd=36 -device virtio-net-
  pci,netdev=hostnet1,id=net1,mac=52:54:00:70:fe:54,bus=pci.0,addr=0x4
  -chardev pty,id=charserial0 -device isa-
  serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
  -vnc 127.0.0.1:0 -device VGA,id=video0,bus=pci.0,addr=0x2 -device
  intel-hda,id=sound0,bus=pci.0,addr=0x5 -device hda-
  duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-
  pci,id=balloon0,bus=pci.0,addr=0x7

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1318830/+subscriptions

[Qemu-devel] [Bug 1318830] Re: High CPU usage on windows virtual machine

[Serge Hallyn]

** Changed in: qemu (Ubuntu)
       Status: New => Invalid

** Changed in: qemu
       Status: New => Invalid

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1318830

Title:
  High CPU usage on windows virtual machine

Status in QEMU:
  Invalid
Status in qemu package in Ubuntu:
  Invalid

Bug description:
  I got Ubuntu 14.04, with Qemu 2.0 and moved my windows VM to this new box, and made sure that what this article indicates was achieved
  https://www.kraxel.org/blog/2014/03/qemu-and-usb-tablet-cpu-consumtion/
  I can attest that it works following the instructions, erasing the registry, etc.
  Unfortunately, with 4 cpus as below, I still see 60% CPU outside as shown by "Top" versus 0% CPU inside. My Kernel is 3.15.0-031500rc4-generic
  If some developer wants to log in and take a look, I am happy to help. The box is not in production and I take full responsibility. Until this is solved, KVM is not going to compete with Hyper-V or Vmware.  Basically KVM is not suitable for the Enterprise as of yet.

  qemu-system-x86_64 -enable-kvm -name Production -S -machine pc-
  i440fx-2.0,accel=kvm,usb=off -cpu
  kvm64,+rdtscp,+pdpe1gb,+x2apic,+dca,+pcid,+pdcm,+xtpr,+tm2,+est,+smx,+vmx,+ds_cpl,+monitor,+dtes64,+pclmuldq,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme,hv_relaxed,hv_vapic,hv_spinlocks=0xfff
  -m 4024 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -uuid
  e8701c5c-b542-0199-fd2a-1047df24770e -no-user-config -nodefaults
  -chardev
  socket,id=charmonitor,path=/var/lib/libvirt/qemu/Production.monitor,server,nowait
  -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
  -no-shutdown -boot strict=on -device piix3-usb-
  uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
  file=/var/lib/libvirt/images/Production.img,if=none,id=drive-virtio-
  disk0,format=raw -device virtio-blk-
  pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-
  disk0,bootindex=1 -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31
  -device virtio-net-
  pci,netdev=hostnet0,id=net0,mac=00:16:3a:d2:cd:ea,bus=pci.0,addr=0x3
  -netdev tap,fd=35,id=hostnet1,vhost=on,vhostfd=36 -device virtio-net-
  pci,netdev=hostnet1,id=net1,mac=52:54:00:70:fe:54,bus=pci.0,addr=0x4
  -chardev pty,id=charserial0 -device isa-
  serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
  -vnc 127.0.0.1:0 -device VGA,id=video0,bus=pci.0,addr=0x2 -device
  intel-hda,id=sound0,bus=pci.0,addr=0x5 -device hda-
  duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-
  pci,id=balloon0,bus=pci.0,addr=0x7

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1318830/+subscriptions