Peeks in processor cores PowerEdge R640

Hi,
We have 2 dell poweredges which are used as hosts in a vmware enviroment with 24 Vmachines. We also host 8 Citrix VM's 

1 of the 2 hosts is showing a starnage behaviour in his processors graph. I Get 100 procen peeks every 2 or 3 minutes in every time a differen core  it looks like a big disturbing Graph

i cannot detect any vm to be "in the red" and the performance of the Vmachines look ok. But this graph is totally of the chart for a few monts now ?

i put an image on my own website, dont mind my website but there you can see the chart of the processor:

https://3dbooster.nl/grafisch-design/

Can anyone help me to resolve this issue please?

• Hypervisor:VMware ESXi, 6.7.0, 15160138
  
• Model:PowerEdge R640
  
• Processor Type:Intel(R) Xeon(R) Gold 6134 CPU @ 3.20GHz
  
• Logical Processors:32
  
• NICs:4
  
• Virtual Machines:15
  
• State:Connected
  
• Uptime:41 days