[vfio-users] Performance problem with i5 3330
francesco dicarlo
evilsephiroth at gmail.com
Tue Sep 15 09:16:16 UTC 2015
Done with the scan. Nothing found...
Besides running only malwarebytes anti-malware on win vm hogged guest cpu
to 70% and all 3 cores assigned to vm on the host went at 65%.
Only scanning... For the sake of completeness, I will post my vm xml.
<domain type='kvm' id='12' xmlns:qemu='
http://libvirt.org/schemas/domain/qemu/1.0'>
<name>win8.1</name>
<uuid>f7060f72-6428-40fe-b19e-6ced0837149e</uuid>
<memory unit='KiB'>8388608</memory>
<currentMemory unit='KiB'>8388608</currentMemory>
<vcpu placement='static' cpuset='0-2'>3</vcpu>
<resource>
<partition>/machine</partition>
</resource>
<os>
<type arch='x86_64' machine='pc-i440fx-trusty'>hvm</type>
<loader>/usr/share/ovmf/OVMF.fd</loader>
<bootmenu enable='yes'/>
</os>
<features>
<acpi/>
<hyperv>
<relaxed state='off'/>
<vapic state='off'/>
<spinlocks state='off'/>
</hyperv>
</features>
<cpu mode='custom' match='exact'>
<model fallback='allow'>SandyBridge</model>
<vendor>Intel</vendor>
<topology sockets='1' cores='3' threads='1'/>
<feature policy='require' name='vme'/>
<feature policy='require' name='dtes64'/>
<feature policy='require' name='vmx'/>
<feature policy='require' name='erms'/>
<feature policy='require' name='xtpr'/>
<feature policy='require' name='smep'/>
<feature policy='require' name='pcid'/>
<feature policy='require' name='est'/>
<feature policy='require' name='monitor'/>
<feature policy='require' name='tm'/>
<feature policy='require' name='acpi'/>
<feature policy='require' name='osxsave'/>
<feature policy='require' name='ht'/>
<feature policy='require' name='pdcm'/>
<feature policy='require' name='fsgsbase'/>
<feature policy='require' name='f16c'/>
<feature policy='require' name='ds’/>
<feature policy='require' name='tm2'/>
<feature policy='require' name='ss'/>
<feature policy='require' name='pbe'/>
<feature policy='require' name='ds_cpl'/>
<feature policy='require' name='rdrand'/>
</cpu>
<clock offset='localtime'>
<timer name='hypervclock' present='no'/>
<timer name='rtc' tickpolicy='catchup'/>
<timer name='pit' tickpolicy='delay'/>
<timer name='hpet' present='no'/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<pm>
<suspend-to-mem enabled='no'/>
<suspend-to-disk enabled='no'/>
</pm>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='raw' cache='none' io='native'/>
<source file='/home/repo/vmdisk/win8vmgame.img'/>
<backingStore/>
<target dev='vda' bus='virtio'/>
<boot order='1'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05'
function='0x0'/>
</disk>
<controller type='usb' index='0' model='ich9-ehci1'>
<alias name='usb0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x7'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci1'>
<alias name='usb0'/>
<master startport='0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x0' multifunction='on'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci2'>
<alias name='usb0'/>
<master startport='2'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x1'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci3'>
<alias name='usb0'/>
<master startport='4'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x2'/>
</controller>
<controller type='pci' index='0' model='pci-root'>
<alias name='pci.0'/>
</controller>
<controller type='ide' index='0'>
<alias name='ide0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01'
function='0x1'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:db:d1:3e'/>
<source bridge='br0'/>
<target dev='vnet0'/>
<model type='virtio'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
</interface>
<serial type='pty'>
<source path='/dev/pts/5'/>
<target port='0'/>
<alias name='serial0'/>
</serial>
<console type='pty' tty='/dev/pts/5'>
<source path='/dev/pts/5'/>
<target type='serial' port='0'/>
<alias name='serial0'/>
</console>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</source>
<alias name='hostdev0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06'
function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x01' slot='0x00' function='0x1'/>
</source>
<alias name='hostdev1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07'
function='0x0'/>
</hostdev>
<memballoon model='virtio'>
<alias name='balloon0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02'
function='0x0'/>
</memballoon>
</devices>
<qemu:commandline>
<qemu:arg value='-cpu'/>
<qemu:arg value='host,kvm=off'/>
<qemu:arg value='-vga'/>
<qemu:arg value='none'/>
</qemu:commandline>
</domain>
2015-09-15 11:04 GMT+02:00 francesco dicarlo <evilsephiroth at gmail.com>:
> hmm a pretty new installation with only installed nvidia drivers and steam
> ? it's an image from a reliable source. just checking with malwarebytes
> tool.
>
> I inspected the task manager but nothing came up
>
> 2015-09-15 10:58 GMT+02:00 BugMaze <bugmaze at networkbreak.net>:
>
>> Then check your Windows for malware. Most of them are bitcoin mining
>> proccess that hog the CPU in the background.
>>
>>
>> ---- francesco dicarlo كتب ----
>>
>> 60 degree under gaming. pretty normal for that shitty intel cooler... I
>> use sensors from ubuntu repository.
>>
>>
>>
>> 2015-09-15 10:45 GMT+02:00 BugMaze <bugmaze at networkbreak.net>:
>>
>>> Just a wild guess: Maybe your CPU is throttling, do you monitor your
>>> CPU's temps? I used to have a similar experience to yours, reseating the
>>> cooler with new thermal compound was the magic solution.
>>>
>>>
>>> ---- francesco dicarlo كتب ----
>>>
>>>
>>> Hi to all, this is my current hardware:
>>>
>>> Cpu: I5 3330
>>> Ram: 12GB DDR3
>>> HD: 3 x 4TB(NAS) + 1x120GB (Ubuntu 14.04)
>>> GPU:Nvidia gtx 970 directCu mini
>>> DVB-S :Dvb-Sky S952 pci express
>>>
>>> I'm currently using my host for these operations:
>>> -Rtorrent + filebot + irssi + Rutorrent
>>> - Kodi 14 Client
>>> - Vdr Server
>>> - Mysql server for Kodi central repository
>>> - NFS server for exposing my nas drives
>>> - Some cron jobs to update kodi repository
>>>
>>> Usually, cpu usage stays 10 - 15% also with kodi reproducing media with
>>> ram almost free (890MB on 12GB)
>>>
>>> I've got a windows 8.1 OVMF virtual machine. No problem with 970
>>> passthrough.
>>> Removed hyperV enlightenments,kvm=off with latest nvidia drivers.
>>>
>>> Assigned 3vcpus pinning 0-2 with virt-manager ui.
>>> Assigned a raw image of 100GB for testing. Virtio for disk and network.
>>> There's a bridge br0 on the host machine to provide connectivity.
>>> Using huge pages also.
>>> Latest ovmf from git.
>>>
>>> I use it as a steam streaming server by using only wired ethernet
>>> gigabit.
>>>
>>> My problem is only performance.
>>>
>>> When I fire up a game,qemu process use 90% of 3 cpus and I have
>>> framerate by 15 20 fps while gaming on bare metal goes always at 60fps.
>>> Tried with various games(Borderlands,KOF 13, Child of Light). Client is at
>>> 90% cpu.
>>>
>>> I used in the past proxmox for my kvm needs with a i5 3470 and
>>> performance was much more(60 fps) that with kvm-qemu on my current distro.
>>> I can't think that there's so much difference between i5 3330 and i5
>>> 3470.
>>>
>>> Is there something I'm missing? I'm willing to post configuration or any
>>> other file that you need to do an analysis.
>>>
>>> The last thing that I'm going to do is to use a empty installation of
>>> Ubuntu with nothing installed aside kvm packages to see performance...
>>>
>>
>>
>
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