Hello, here is the extra information you have asked for.
Instance 37aa aka kvm id 677 is my currently running test instance, but I have given you
the full ps output you have asked for. 18429 is the PID for this instance.




<domain type='kvm' id='677'>
  <name>instance-000037aa</name>
  <uuid>12396aff-3f84-4ceb-9791-d20cf656fb35</uuid>
  <metadata>
    <nova:instance xmlns:nova="http://openstack.org/xmlns/libvirt/nova/1.0">
      <nova:package version="2015.1.1-a41-g26267dc-trusty"/>
      <nova:name>qemu9</nova:name>
      <nova:creationTime>2015-09-10 06:14:59</nova:creationTime>
      <nova:flavor name="m1.small">
        <nova:memory>4096</nova:memory>
        <nova:disk>10</nova:disk>
        <nova:swap>0</nova:swap>
        <nova:ephemeral>30</nova:ephemeral>
        <nova:vcpus>1</nova:vcpus>
      </nova:flavor>
      <nova:owner>
        <nova:user uuid="76a0c7d2dcfc46a68cf1c5f074b79583"><email address hidden></nova:user>
        <nova:project uuid="87a5bb66157d4b42800c131bffafc184">pt-489</nova:project>
      </nova:owner>
      <nova:root type="image" uuid="cfb066e2-9b8f-468a-bf29-e9b9336947af"/>
    </nova:instance>
  </metadata>
  <memory unit='KiB'>4194304</memory>
  <currentMemory unit='KiB'>4194304</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <cputune>
    <shares>1024</shares>
  </cputune>
  <resource>
    <partition>/machine</partition>
  </resource>
  <sysinfo type='smbios'>
    <system>
      <entry name='manufacturer'>OpenStack Foundation</entry>
      <entry name='product'>OpenStack Nova</entry>
      <entry name='version'>2015.1.1-a41-g26267dc-trusty</entry>
      <entry name='serial'>534d4349-0002-5290-2500-529025005ccf</entry>
      <entry name='uuid'>12396aff-3f84-4ceb-9791-d20cf656fb35</entry>
    </system>
  </sysinfo>
  <os>
    <type arch='x86_64' machine='pc-i440fx-trusty'>hvm</type>
    <boot dev='hd'/>
    <smbios mode='sysinfo'/>
  </os>
  <features>
    <acpi/>
    <apic/>
  </features>
  <cpu mode='host-model'>
    <model fallback='allow'/>
    <topology sockets='1' cores='1' threads='1'/>
  </cpu>
  <clock offset='utc'>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='rtc' tickpolicy='catchup'/>
    <timer name='hpet' present='no'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-x86_64</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw' cache='none'/>
      <source file='/var/lib/nova/instances/12396aff-3f84-4ceb-9791-d20cf656fb35/disk'/>
      <backingStore/>
      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw' cache='none'/>
      <source file='/var/lib/nova/instances/12396aff-3f84-4ceb-9791-d20cf656fb35/disk.local'/>
      <backingStore/>
      <target dev='vdb' bus='virtio'/>
      <alias name='virtio-disk1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </disk>
    <controller type='usb' index='0'>
      <alias name='usb0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'>
      <alias name='pci.0'/>
    </controller>
    <interface type='bridge'>
      <mac address='fa:16:3e:3e:7d:03'/>
      <source bridge='br100'/>
      <target dev='vnet6'/>
      <model type='virtio'/>
      <filterref filter='nova-instance-instance-000037aa-fa163e3e7d03'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='file'>
      <source path='/var/lib/nova/instances/12396aff-3f84-4ceb-9791-d20cf656fb35/console.log'/>
      <target port='0'/>
      <alias name='serial0'/>
    </serial>
    <serial type='pty'>
      <source path='/dev/pts/12'/>
      <target port='1'/>
      <alias name='serial1'/>
    </serial>
    <console type='file'>
      <source path='/var/lib/nova/instances/12396aff-3f84-4ceb-9791-d20cf656fb35/console.log'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
    </console>
    <input type='tablet' bus='usb'>
      <alias name='input0'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='vnc' port='5906' autoport='yes' listen='0.0.0.0' keymap='en-us'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <video>
      <model type='cirrus' vram='16384' heads='1'/>
      <alias name='video0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <alias name='balloon0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
      <stats period='10'/>
    </memballoon>
  </devices>
  <seclabel type='dynamic' model='apparmor' relabel='yes'>
    <label>libvirt-12396aff-3f84-4ceb-9791-d20cf656fb35</label>
    <imagelabel>libvirt-12396aff-3f84-4ceb-9791-d20cf656fb35</imagelabel>
  </seclabel>
</domain>




root@cc3:~# ps -auxww | egrep -e '(qemu|kvm)'
libvirt+   815  0.3  0.7 8928504 1037444 ?     Sl   Sep10  21:43 /usr/bin/qemu-system-x86_64 -name instance-00003798 -S -machine pc-i440fx-trusty,accel=kvm,usb=off -cpu Opteron_G4,+perfctr_nb,+perfctr_core,+topoext,+nodeid_msr,+lwp,+wdt,+skinit,+ibs,+osvw,+cr8legacy,+extapic,+cmp_legacy,+fxsr_opt,+mmxext,+osxsave,+monitor,+ht,+vme -m 4096 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid cd51f9ff-4175-4a95-abca-49fdcad12316 -smbios type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=2014.2.1-a153-g68554dc-trusty,serial=534d4349-0002-5290-2500-529025005ccf,uuid=cd51f9ff-4175-4a95-abca-49fdcad12316 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-00003798.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/var/lib/nova/instances/cd51f9ff-4175-4a95-abca-49fdcad12316/disk,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/var/lib/nova/instances/cd51f9ff-4175-4a95-abca-49fdcad12316/disk.local,if=none,id=drive-virtio-disk1,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk1,id=virtio-disk1 -netdev tap,fd=28,id=hostnet0,vhost=on,vhostfd=29 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:f6:fa:4a,bus=pci.0,addr=0x3 -chardev file,id=charserial0,path=/var/lib/nova/instances/cd51f9ff-4175-4a95-abca-49fdcad12316/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -device usb-tablet,id=input0 -vnc 0.0.0.0:4 -k en-us -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 -msg timestamp=on
root       821  0.0  0.0      0     0 ?        S    Sep10   0:00 [kvm-pit/815]
libvirt+  1120  0.3  0.8 8928360 1054916 ?     Sl   Sep10  20:30 /usr/bin/qemu-system-x86_64 -name instance-0000379a -S -machine pc-i440fx-trusty,accel=kvm,usb=off -cpu Opteron_G4,+perfctr_nb,+perfctr_core,+topoext,+nodeid_msr,+lwp,+wdt,+skinit,+ibs,+osvw,+cr8legacy,+extapic,+cmp_legacy,+fxsr_opt,+mmxext,+osxsave,+monitor,+ht,+vme -m 4096 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid 90bebf98-cc44-4b10-9c19-18bc545e4674 -smbios type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=2014.2.1-a153-g68554dc-trusty,serial=534d4349-0002-5290-2500-529025005ccf,uuid=90bebf98-cc44-4b10-9c19-18bc545e4674 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-0000379a.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/var/lib/nova/instances/90bebf98-cc44-4b10-9c19-18bc545e4674/disk,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/var/lib/nova/instances/90bebf98-cc44-4b10-9c19-18bc545e4674/disk.local,if=none,id=drive-virtio-disk1,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk1,id=virtio-disk1 -netdev tap,fd=28,id=hostnet0,vhost=on,vhostfd=33 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:b3:02:3e,bus=pci.0,addr=0x3 -chardev file,id=charserial0,path=/var/lib/nova/instances/90bebf98-cc44-4b10-9c19-18bc545e4674/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -device usb-tablet,id=input0 -vnc 0.0.0.0:5 -k en-us -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 -msg timestamp=on
root      1123  0.0  0.0      0     0 ?        S    Sep10   0:00 [kvm-pit/1120]
root      2407  0.0  0.0      0     0 ?        S<   Jul10   0:00 [kvm-irqfd-clean]
root      6291  0.0  0.0   9140   936 pts/2    S+   10:09   0:00 egrep --color=auto -e (qemu|kvm)
libvirt+ 18429  0.4  0.9 8928504 1245296 ?     Sl   Sep10  25:39 /usr/bin/qemu-system-x86_64 -name instance-000037aa -S -machine pc-i440fx-trusty,accel=kvm,usb=off -cpu Opteron_G4,+perfctr_nb,+perfctr_core,+topoext,+nodeid_msr,+lwp,+wdt,+skinit,+ibs,+osvw,+cr8legacy,+extapic,+cmp_legacy,+fxsr_opt,+mmxext,+osxsave,+monitor,+ht,+vme -m 4096 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid 12396aff-3f84-4ceb-9791-d20cf656fb35 -smbios type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=2015.1.1-a41-g26267dc-trusty,serial=534d4349-0002-5290-2500-529025005ccf,uuid=12396aff-3f84-4ceb-9791-d20cf656fb35 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-000037aa.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/var/lib/nova/instances/12396aff-3f84-4ceb-9791-d20cf656fb35/disk,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/var/lib/nova/instances/12396aff-3f84-4ceb-9791-d20cf656fb35/disk.local,if=none,id=drive-virtio-disk1,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk1,id=virtio-disk1 -netdev tap,fd=28,id=hostnet0,vhost=on,vhostfd=34 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:3e:7d:03,bus=pci.0,addr=0x3 -chardev file,id=charserial0,path=/var/lib/nova/instances/12396aff-3f84-4ceb-9791-d20cf656fb35/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -device usb-tablet,id=input0 -vnc 0.0.0.0:6 -k en-us -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 -msg timestamp=on
root     18432  0.0  0.0      0     0 ?        S    Sep10   0:00 [kvm-pit/18429]
libvirt+ 32497  0.3  0.8 8870100 1057604 ?     Sl   Aug18 150:16 /usr/bin/qemu-system-x86_64 -name instance-00003123 -S -machine pc-i440fx-trusty,accel=kvm,usb=off -cpu Opteron_G4,+perfctr_nb,+perfctr_core,+topoext,+nodeid_msr,+lwp,+wdt,+skinit,+ibs,+osvw,+cr8legacy,+extapic,+cmp_legacy,+fxsr_opt,+mmxext,+osxsave,+monitor,+ht,+vme -m 4096 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid 1d9b1538-9fd8-42df-94cd-85b19b8904ff -smbios type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=2014.2.1-a151-gbd4eacb-trusty,serial=534d4349-0002-5290-2500-529025005ccf,uuid=1d9b1538-9fd8-42df-94cd-85b19b8904ff -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-00003123.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/var/lib/nova/instances/1d9b1538-9fd8-42df-94cd-85b19b8904ff/disk,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/var/lib/nova/instances/1d9b1538-9fd8-42df-94cd-85b19b8904ff/disk.local,if=none,id=drive-virtio-disk1,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk1,id=virtio-disk1 -netdev tap,fd=28,id=hostnet0,vhost=on,vhostfd=29 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:e7:ac:71,bus=pci.0,addr=0x3 -chardev file,id=charserial0,path=/var/lib/nova/instances/1d9b1538-9fd8-42df-94cd-85b19b8904ff/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -device usb-tablet,id=input0 -vnc 0.0.0.0:0 -k en-us -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6
root     32500  0.0  0.0      0     0 ?        S    Aug18   0:00 [kvm-pit/32497]