Hi Joseph,
> I built a test kernel with the requested commit.
> The test kernel can be downloaded from:
> http://kernel.ubuntu.com/~jsalisbury/lp1792957
>
> Can you test this kernel and see if it resolves this bug?
I tested this kernel in the following scenarios:
- Booted the host on a P9 machine and started an 18.04 guest using the default
parameters.
- Removed the kvm_hv module and reinstalled it using the 'one_vm_per_core'
parameter, shut down the 18.04 guest and restarted it.
➜ ~ sudo virsh destroy breno-1804
➜ ~ sudo rmmod kvm_hv
➜ ~ sudo modprobe kvm_hv one_vm_per_core=1
➜ ~ sudo virsh start --console breno-1804
On both guests I ran sysbench, as:
breno@ubuntu:~$ sysbench --threads=16 cpu run
sysbench 1.0.11 (using system LuaJIT 2.1.0-beta3)
Running the test with following options:
breno@ubuntu:~$ sysbench --threads=16 cpu run
Number of threads: 16
Initializing random number generator from current time
Prime numbers limit: 10000
Initializing worker threads...
Threads started!
CPU speed:
events per second: 33648.49
.....
Everything worked fine. I think this patch is good to get accepted.
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https://bugs.launchpad.net/bugs/1792957
Title:
Provide mode where all vCPUs on a core must be the same VM
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