Ryzen + KVM very slow vilrtualization
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I want to switch form my old Intel platform to new Ubuntu 18.04 LTS + Ryzen 2700 + Asus X470 F Gaminng mobo. Virtualization is a must for me. So after installing clean Ubuntu I've installed KVM + QEMU.
When I run Ubuntu 16.04 just live CD in virtual machine it is painfully slow. It turns on in about 5 minutes.
But running Ubuntu 18.04 live CD in virtual machine works as I expect it to be - super fast.
I have enabled IOMMU and SVM in bios and command kvm-ok says:
KVM acceleration can be used
I've tried to change Video to different modes (QLX, VGA etc) - nothing changes.
I've tried to change emulated CPU to Broadwell, Haswell, and few other options - nothing changes.
Any suggestions where to look to resolve this issue?
64-bit virtualization kvm
asked Apr 30 at 6:37
netCreate
11
 |Â
show 1 more comment
up vote
0
down vote
favorite
I want to switch form my old Intel platform to new Ubuntu 18.04 LTS + Ryzen 2700 + Asus X470 F Gaminng mobo. Virtualization is a must for me. So after installing clean Ubuntu I've installed KVM + QEMU.
When I run Ubuntu 16.04 just live CD in virtual machine it is painfully slow. It turns on in about 5 minutes.
But running Ubuntu 18.04 live CD in virtual machine works as I expect it to be - super fast.
I have enabled IOMMU and SVM in bios and command kvm-ok says:
KVM acceleration can be used
I've tried to change Video to different modes (QLX, VGA etc) - nothing changes.
I've tried to change emulated CPU to Broadwell, Haswell, and few other options - nothing changes.
Any suggestions where to look to resolve this issue?
64-bit virtualization kvm
asked Apr 30 at 6:37
netCreate
11
Doesinfo kvmsay hardware virtualization is in use?
– dsstorefile1
Apr 30 at 6:38
I'm not sure what your'e asking me for. But kvm-info saysINFO: /dev/kvm exists KVM acceleration can be usedalsolscpushows:Virtualization: AMD-V
– netCreate
Apr 30 at 8:08
I was asking you to run a command in the QEMU monitor so the emulator itself tells you directly whether it's using the available hardware acceleration. kvm-info tells you whether acceleration is available but not whether QEMU is using it.
– dsstorefile1
Apr 30 at 8:09
1
I got into monitor and I got:kvm support: enabled
– netCreate
Apr 30 at 13:17
You could take a look if you are cpu bound and if so in which of qemu's threads that is viapidstat -t -p <pid-of-qemu>- the share between guest/user/sys in that would often also indicate where to look next.
– Christian Ehrhardt
Apr 30 at 14:08
 |Â
show 1 more comment
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I want to switch form my old Intel platform to new Ubuntu 18.04 LTS + Ryzen 2700 + Asus X470 F Gaminng mobo. Virtualization is a must for me. So after installing clean Ubuntu I've installed KVM + QEMU.
When I run Ubuntu 16.04 just live CD in virtual machine it is painfully slow. It turns on in about 5 minutes.
But running Ubuntu 18.04 live CD in virtual machine works as I expect it to be - super fast.
I have enabled IOMMU and SVM in bios and command kvm-ok says:
KVM acceleration can be used
I've tried to change Video to different modes (QLX, VGA etc) - nothing changes.
I've tried to change emulated CPU to Broadwell, Haswell, and few other options - nothing changes.
Any suggestions where to look to resolve this issue?
64-bit virtualization kvm
asked Apr 30 at 6:37
netCreate
11
I want to switch form my old Intel platform to new Ubuntu 18.04 LTS + Ryzen 2700 + Asus X470 F Gaminng mobo. Virtualization is a must for me. So after installing clean Ubuntu I've installed KVM + QEMU.
When I run Ubuntu 16.04 just live CD in virtual machine it is painfully slow. It turns on in about 5 minutes.
But running Ubuntu 18.04 live CD in virtual machine works as I expect it to be - super fast.
I have enabled IOMMU and SVM in bios and command kvm-ok says:
KVM acceleration can be used
I've tried to change Video to different modes (QLX, VGA etc) - nothing changes.
I've tried to change emulated CPU to Broadwell, Haswell, and few other options - nothing changes.
Any suggestions where to look to resolve this issue?
64-bit virtualization kvm
asked Apr 30 at 6:37
netCreate
11
asked Apr 30 at 6:37
netCreate
11
asked Apr 30 at 6:37
netCreate
11
asked Apr 30 at 6:37
netCreate
11
11
Doesinfo kvmsay hardware virtualization is in use?
– dsstorefile1
Apr 30 at 6:38
I'm not sure what your'e asking me for. But kvm-info saysINFO: /dev/kvm exists KVM acceleration can be usedalsolscpushows:Virtualization: AMD-V
– netCreate
Apr 30 at 8:08
I was asking you to run a command in the QEMU monitor so the emulator itself tells you directly whether it's using the available hardware acceleration. kvm-info tells you whether acceleration is available but not whether QEMU is using it.
– dsstorefile1
Apr 30 at 8:09
1
I got into monitor and I got:kvm support: enabled
– netCreate
Apr 30 at 13:17
You could take a look if you are cpu bound and if so in which of qemu's threads that is viapidstat -t -p <pid-of-qemu>- the share between guest/user/sys in that would often also indicate where to look next.
– Christian Ehrhardt
Apr 30 at 14:08
 |Â
show 1 more comment
Doesinfo kvmsay hardware virtualization is in use?
– dsstorefile1
Apr 30 at 6:38
I'm not sure what your'e asking me for. But kvm-info saysINFO: /dev/kvm exists KVM acceleration can be usedalsolscpushows:Virtualization: AMD-V
– netCreate
Apr 30 at 8:08
I was asking you to run a command in the QEMU monitor so the emulator itself tells you directly whether it's using the available hardware acceleration. kvm-info tells you whether acceleration is available but not whether QEMU is using it.
– dsstorefile1
Apr 30 at 8:09
1
I got into monitor and I got:kvm support: enabled
– netCreate
Apr 30 at 13:17
You could take a look if you are cpu bound and if so in which of qemu's threads that is viapidstat -t -p <pid-of-qemu>- the share between guest/user/sys in that would often also indicate where to look next.
– Christian Ehrhardt
Apr 30 at 14:08
Does
info kvm say hardware virtualization is in use?– dsstorefile1
Apr 30 at 6:38
Does
info kvm say hardware virtualization is in use?– dsstorefile1
Apr 30 at 6:38
I'm not sure what your'e asking me for. But kvm-info says
INFO: /dev/kvm exists KVM acceleration can be used also lscpu shows: Virtualization: AMD-V– netCreate
Apr 30 at 8:08
I'm not sure what your'e asking me for. But kvm-info says
INFO: /dev/kvm exists KVM acceleration can be used also lscpu shows: Virtualization: AMD-V– netCreate
Apr 30 at 8:08
I was asking you to run a command in the QEMU monitor so the emulator itself tells you directly whether it's using the available hardware acceleration. kvm-info tells you whether acceleration is available but not whether QEMU is using it.
– dsstorefile1
Apr 30 at 8:09
I was asking you to run a command in the QEMU monitor so the emulator itself tells you directly whether it's using the available hardware acceleration. kvm-info tells you whether acceleration is available but not whether QEMU is using it.
– dsstorefile1
Apr 30 at 8:09
1
1
I got into monitor and I got:
kvm support: enabled– netCreate
Apr 30 at 13:17
I got into monitor and I got:
kvm support: enabled– netCreate
Apr 30 at 13:17
You could take a look if you are cpu bound and if so in which of qemu's threads that is via
pidstat -t -p <pid-of-qemu> - the share between guest/user/sys in that would often also indicate where to look next.– Christian Ehrhardt
Apr 30 at 14:08
You could take a look if you are cpu bound and if so in which of qemu's threads that is via
pidstat -t -p <pid-of-qemu> - the share between guest/user/sys in that would often also indicate where to look next.– Christian Ehrhardt
Apr 30 at 14:08
 |Â
show 1 more comment
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Does
info kvmsay hardware virtualization is in use?– dsstorefile1
Apr 30 at 6:38
I'm not sure what your'e asking me for. But kvm-info says
INFO: /dev/kvm exists KVM acceleration can be usedalsolscpushows:Virtualization: AMD-V– netCreate
Apr 30 at 8:08
I was asking you to run a command in the QEMU monitor so the emulator itself tells you directly whether it's using the available hardware acceleration. kvm-info tells you whether acceleration is available but not whether QEMU is using it.
– dsstorefile1
Apr 30 at 8:09
1
I got into monitor and I got:
kvm support: enabled– netCreate
Apr 30 at 13:17
You could take a look if you are cpu bound and if so in which of qemu's threads that is via
pidstat -t -p <pid-of-qemu>- the share between guest/user/sys in that would often also indicate where to look next.– Christian Ehrhardt
Apr 30 at 14:08