I've spent months testing performance from esxi to kvm and single core and disk performance is a good chunk worse and I have tried everything, it's a a shame.  I tried the same workload on aws though and it's even worse than local kvm so there is that.
	
		
			
		
		
	
				
			 
	 
  
 
		 
 
		 
 
		 
 
		
 
 
		