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If the number of CPU-cores per processor socket is increased in an ESXi physical host, then ESXi will require more time to complete certain tasks. (2006081)
On some server platforms, the number of CPU-cores per processor socket that is visible to software can be adjusted through BIOS configuration options. As this number increases, ESXi running on such a server will require more time to complete the following tasks:
- Boot the host machine.
- Adding host to a HA cluster.
- Collecting vm-support diagnostic data.
The additional required time for the above tasks becomes more noticeable as the number of cores is increased to 8 or more per processor socket. Note that correct operation of ESXi is not impacted by this effect.
This issue is fixed in 4.1U2 release.
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