Hi,

Most of our VMs are SLES SP15 and also few are CentOS 7. But the problem looks 
to be same for any type of VM.
Today, I tried to clear the "buff/cache" memory manually for one of the VM 
using "sync; echo 3 > /proc/sys/vm/drop_caches" linux command and then I 
noticed in ovirt GUI that VM's memory usage dropped to 54% from 98%.
So, it is clear that ovirt is not considering the actual "available" memory but 
is considering "free" + "buff/cache" and is reporting the same in ovirt GUI as 
memory usage %.

Isn't this a bug?


/Kishore
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