High memory utilization on Workspace hosts

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The RAM for each host is 256GB RAM and the allocated for each VM is 16GB RAM, host 3 only have 8VMs and only 3 is running but the RAM usage exist 80% in each host which is 30% more.

1. Execute free -g to check the host memory usage and determine whether it matches the memory utilization of the frontend;

Found that the memory utilization display in the backend is consistent with the frontend

2. Execute top, sort by M to view the memory usage. 8 virtual machines with 16G memory have been created on the on-site host, and the memory usage of the remaining processes will not occupy so much memory.

3. 3. Check whether the host is configured with memory HugePages, virtualization finds the host, check the HugePages configuration in the advanced settings-startup item configuration, and find that the function is enabled. After confirmation, it was found that the HugePages configuration had been enabled when testing GPU applications before. HugePages will occupy a lot of memory.

After closing HugePages, memory utilization returned to normal.