title: 1GB pages and Transparent Huge Pages (Linux)
body: <p>The <em>Transparent Huge Pages(THP)</em> support in recent Linux kernels allows automatic promotion/demotion between different page sizes (e.g., 4KB and 2MB in x86-64).</p>
  <p>But I am not sure if THP can also promote/demote page sizes between 4KB and 1GB pages or between 2MB and 1GB pages.</p>
  <p>Can somebody comment on this?</p>