published by whitemice on Tue, 05/29/2018 - 15:30    
  
  
    The THP (Transparent Huge Pages) feature of modern LINUX kernels is a boon for on-metal servers with a sufficiently advanced MMU.  However they can also result in performance degradation and inefficiently memory use when enabled in a virtual machine [depending on the hypervisor and hosting provider].  See, for example "Use of large pages can cause memory to be fully allocated".