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What will happen if you decreased number of CPUs on a Virtual machine?

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Question added by Ali Siddiqui , IT Manager , TLD Arabia
Date Posted: 2014/06/11
Hesham Allam
by Hesham Allam , Technical Manager, Business Automation , Advansys-ESC

decreasing CPUs may or may not affect your VM based on the traffic and load , so i think this is a very generic question as long as there is  best practice almost for most solutions now a days so please share with us the configuration and setup you use 

Anas Jalal Yahya
by Anas Jalal Yahya , Service Delivery Manager - Project Manager , Diyar Middle East

Hi,

 

If you decrease the number of VCPUs for a machine, the performance of this machine will decraese depending on the servies and applications running on this machine.

 

HTH

Best Regards,

Nicholas Cooper
by Nicholas Cooper , System Administrator , Altech ISIS

Depending on your environment and how the other virtual machines are setup you might see a performance increase. As there will be less wait for CPU allocation from the hypervisor. Your cpu wait time should come down. 

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