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Diffstat (limited to 'Documentation/admin-guide/mm/idle_page_tracking.rst')
| -rw-r--r-- | Documentation/admin-guide/mm/idle_page_tracking.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/admin-guide/mm/idle_page_tracking.rst b/Documentation/admin-guide/mm/idle_page_tracking.rst index 6f7b7ca1add3..df9394fb39c2 100644 --- a/Documentation/admin-guide/mm/idle_page_tracking.rst +++ b/Documentation/admin-guide/mm/idle_page_tracking.rst @@ -65,6 +65,11 @@ workload one should: are not reclaimable, he or she can filter them out using ``/proc/kpageflags``. +The page-types tool in the tools/vm directory can be used to assist in this. +If the tool is run initially with the appropriate option, it will mark all the +queried pages as idle. Subsequent runs of the tool can then show which pages have +their idle flag cleared in the interim. + See :ref:`Documentation/admin-guide/mm/pagemap.rst <pagemap>` for more information about ``/proc/pid/pagemap``, ``/proc/kpageflags``, and ``/proc/kpagecgroup``. |