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Add vcpupin support (#1007)

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Support tuning to pin which host CPUs the vCPUs will be pinned to.
This commit is contained in:
Who? Me?!
2022-10-08 05:14:08 -05:00
committed by GitHub
parent 629ead3140
commit 35e3730abf
6 changed files with 40 additions and 5 deletions
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13
docs/configuration.markdown
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@@ -105,7 +105,6 @@ end
* `cpus` - Number of virtual cpus. Defaults to 1 if not set.
* `cpuset` - Physical cpus to which the vcpus can be pinned. For more details see [documentation](https://libvirt.org/formatdomain.html#elementsCPUAllocation).
* `cputopology` - Number of CPU sockets, cores and threads running per core. All fields of `:sockets`, `:cores` and `:threads` are mandatory, `cpus` domain option must be present and must be equal to total count of **sockets * cores * threads**. For more details see [documentation](https://libvirt.org/formatdomain.html#elementsCPU).
* `nodeset` - Physical NUMA nodes where virtual memory can be pinned. For more details see [documentation](https://libvirt.org/formatdomain.html#elementsNUMATuning).
```ruby
Vagrant.configure("2") do |config|
@@ -117,6 +116,18 @@ end
end
```
* `cpuaffinitiy` - Mapping of vCPUs to host CPUs. [See `vcpupin`](https://libvirt.org/formatdomain.html#cpu-tuning).
```ruby
Vagrant.configure("2") do |config|
config.vm.provider :libvirt do |libvirt|
libvirt.cpus = 4
libvirt.cpuaffinitiy 0 => '0-4,^3', 1 => '5', 2 => '6,7'
end
end
```
* `nodeset` - Physical NUMA nodes where virtual memory can be pinned. For more details see [documentation](https://libvirt.org/formatdomain.html#elementsNUMATuning).
* `nested` - [Enable nested virtualization](https://docs.fedoraproject.org/en-US/quick-docs/using-nested-virtualization-in-kvm/).
Default is false.
* `cpu_mode` - [CPU emulation mode](https://libvirt.org/formatdomain.html#elementsCPU). Defaults to