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CNV#35107: bugfix in VM memory overhead section

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Pan Ousley
2023-12-11 15:39:57 -05:00
committed by openshift-cherrypick-robot
parent a2f82c7ad5
commit b0cbe888ff
1 changed files with 12 additions and 7 deletions
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19
modules/virt-cluster-resource-requirements.adoc
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@@ -34,14 +34,19 @@ Additionally, {VirtProductName} environment resources require a total of 2179 Mi
.Virtual machine memory overhead
----
Memory overhead per virtual machine ≈ (1.002 * requested memory) + 146 MiB \
+ 8 MiB * (number of vCPUs) \ <1>
+ 16 MiB * (number of graphics devices) <2>
Memory overhead per virtual machine ≈ (1.002 × requested memory) \
+ 218 MiB \ <1>
+ 8 MiB × (number of vCPUs) \ <2>
+ 16 MiB × (number of graphics devices) \ <3>
+ (additional memory overhead) <4>
----
<1> Number of virtual CPUs requested by the virtual machine
<2> Number of virtual graphics cards requested by the virtual machine
If your environment includes a Single Root I/O Virtualization (SR-IOV) network device or a Graphics Processing Unit (GPU), allocate 1 GiB additional memory overhead for each device.
<1> Required for the processes that run in the `virt-launcher` pod.
<2> Number of virtual CPUs requested by the virtual machine.
<3> Number of virtual graphics cards requested by the virtual machine.
<4> Additional memory overhead:
* If your environment includes a Single Root I/O Virtualization (SR-IOV) network device or a Graphics Processing Unit (GPU), allocate 1 GiB additional memory overhead for each device.
* If Secure Encrypted Virtualization (SEV) is enabled, add 256 MiB.
* If Trusted Platform Module (TPM) is enabled, add 53 MiB.
[discrete]
[id="CPU-overhead_{context}"]