Lösung gefunden damit Dual Core im ESXI unterstützt wird:
To implement this feature:
Power off the virtual machine.
Right-click on the virtual machine and click Edit Settings.
Click Hardware and select CPUs.
Choose the number of virtual processors.
Click the Options tab.
Click General, in the Advanced options section.
Click Configuration Parameters.
Include cpuid.coresPerSocket in the Name column.
Enter a value (try 2, 4, or 8) in the Value column.
Note: Ensure that the number of vCPUs is divisible by the number of cpuid.coresPerSocket in the virtual machine. That is, when you divide the number of vCPUs by the number of cpuid.coresPerSocket, it must return an integer value. For example, if your virtual machine is created with 8 vCPUs, coresPerSocket can only be 1, 2, 4, or 8.
The virtual machine now appears to the operating system as having multi-core CPUs with the number of cores per CPU given by the value that you provided in step 9.
Click OK.
Power on the virtual machine.
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