We have dual processor, dual core hosts. (2.6 amd with 16 gb ram) In the past I was suggested/told not to do a dual proc vm because if it took both cpu's then it could have an effect on the host. this is back before dual core. Does that still exist today?
I am about to move my accounting app to a vm and was going to give it dual cpu's for max performance.
Please help!
OK, thanks for the input! I will stick with single procs for our servers, unless they are Oracle servers and will benefit from the multi-processor configurations. If it is simple to upgrade to the multi-processor HAL, then I will just do that if needed. Thanks again!
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Hi, guys this has been a discussion idled for a while. Is this still a good practice with ESXi V5? I have read so many post suggest using single cpu against multiple cpu. what how should I respond to the end user when they see the vm cpu utilization is 100%. when they see the 100 % cpu utilization, is that a indicator this vm has a performance issue? and we should give more cpu to this VM? if not, how can we make this vm faster?
Thanks!
Joy
Welcome to the VMware Communities forums.
The same suggestions would also apply to ESXi 5. It's not neccessarily an issue to use multi-vCPU VMs, but I wouldn't grant vCPUs if the VM is not going to use them. With your VM it sounds like it would benefit from an additional vCPU. That said, I would still briefly investigate the cause of the CPU usage. If it's a problem process that is chewing up CPU cycles, then adding a vCPU might aleviate the issue but not really solve it.
A Vm showing 100% utilization may be a candidate for multi vCPU, but then again not. Unless the apps are multi threaded, more cores won't help.