tatay188 opened a new issue, #11050:
URL: https://github.com/apache/cloudstack/issues/11050

   ### problem
   
   I accounted for all memory, of turned off VM's and online VM, VR, and 
SystemVM memory, should be 104GB RAM why is using 256GB more - It shows 384GB 
RAM being used of the 768GB RAM
   
   This problem did not exist on 4.20.0
   
   
![Image](https://github.com/user-attachments/assets/8bd23e54-15df-4a52-9653-c222653a7744)
   
   
   HTOP is showing QEMU using 10GB per any transaction
   
   
![Image](https://github.com/user-attachments/assets/9eb00379-11d9-4ee2-9d01-d58e913a4548)
   
   
![Image](https://github.com/user-attachments/assets/c9de0a75-5cf0-4d72-91ad-defebb7072fb)
   
   ~# free
                     total               used              free                 
   shared  buff/cache   available
   Mem:       792484040   416579128   374594724        6220     1310188   
373661560
   Swap:       67108860           0    67108860
   
   
   
   
   ### versions
   
   Upgraded to 4.20.1
   Primary storage CEPH
   Secondary Storage EMC NFS
   Guest VXLAN
   Public VLAN
   all isolated networks.
   
   ### The steps to reproduce the bug
   
   1. Upgrade from 4.20.0 to 4.20.1
   2. reboot Hypervisor
   3. Restart SystemVMs
   
   Utilization jumps immediately to 384GB+
   ...
   
   
   ### What to do about it?
   
   Memory consumption should be close what is being allocated, and reserved 
should show the sum of all systems running on the server.


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