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vmware esxi and processor core

Posted on 2010-09-08
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Last Modified: 2012-05-10
hi experts,
for a server with a quad-core processor, can we configure one core per vmware image in VMWARE ESXi? Will each guest OS detect as one core?

Removed the "VB Script Zone".

rindi,
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Question by:kenny_klbn
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rverdam earned 500 total points
ID: 33624578
Think this article might be of help to you, if it doesn't please clarify your question, cause by default when using 1 vCPU the VM will detect it as one CPU:

http://www.boche.net/blog/index.php/2010/07/25/vsphere-4-1-multicore-virtual-cpus/
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by:coolsport00
ID: 33625921
Keep in mind that CPU allocation is not dispersed to VMs as memory (1 to 1). In general, you can have appx. 4 VMs per core. So, on your single quad-core host, you can have about 16 VMs that can run pretty much without issue. Also, in general, you should almost never need to allocate more than 1 vCPU per VM, unless you have a known high CPU app within the VM, such as SQL, Exchg, or other app whose sys req's state the server needs more than 1 CPU.

Regards,
~coolsport00
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