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vm's are getting deployed exceeding cpu allocation in ACS 4.20.2.0 #13464
Description
problem
We are experiencing an issue with the cpu overprovisioning factor in ACS. Although the parameter cpu.overprovisioning.factor is set to 1, VMs are still being deployed on hosts even after reaching full CPU allocation. This is resulting in allocation exceeding 100%.
Refer the attached snippet
CPU: 2 processors, Intel(R) Xeon(R) Gold 6148 CPU (2.40 GHz / 20-core). Hyperthreading is enabled. (80 * 2.4 = 192 GHZ )
Memory: 768 GB
cpu.overprovisioning.factor is set to 1 globally and at cluster level.
versions
ACS Version: 4.20.2.0
DB : Maria DB 10.3.39
ACS and KVM host : RHEL 8
The steps to reproduce the bug
...
What to do about it?
Activity
boring-cyborg commentedon Jun 22, 2026
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[-][SHORT PROBLEM DESCRIPTION][/-][+]vm's are getting deployed exceeding cpu allocation in ACS 4.20.2.0 [/+]gvaishya commentedon Jun 23, 2026
We are using mixed hardware in sinlge cluster and vm.allocation.algorithm global setting set to "firstfitleastconsumed"
cpu.overprovisioning.factor = 1
Below are the HW types
2 processors, Intel(R) Xeon(R) Gold 6154 CPU (3.00 GHz / 18-core)
2 processors, Intel(R) Xeon(R) Gold 6254 CPU (3.10 GHz / 18-core)
2 processors, Intel(R) Xeon(R) Gold 6148 CPU (2.40 GHz / 20-core)