mm/damon/design.rst

202 This scheme, however, cannot preserve the quality of the output if the
480 regions that the scheme is having an interest in.
494 region having the access pattern of interest is found, applying the scheme's
522 scheme action.  In contrast, the colder regions would be deprioritized for huge
523 page collapse scheme action.  Hence, the prioritization mechanisms for each
549 aggressiveness (the quota) of the corresponding scheme.  For example, if DAMOS
581 memory is guaranteed, running a scheme for proactive reclamation would only
589 high watermark or below the low watermark, the scheme is deactivated.  If the
590 metric becomes below the mid watermark but above the low watermark, the scheme
614 number of filters for each scheme.  Each filter specifies
620   the scheme's action to the memory (``allow``).
626 filter are not counted as the scheme has tried to the region.  In contrast, if
628 counted as the scheme has tried.  This difference affects the statistics.
636 scheme's action to it depends on the last filter's allowance type.  If the last
641 of a region that eligible to apply the scheme's action is an anonymous page,
642 the scheme's action will be applied to the page regardless of whether it is
644 not anonymous but young, the scheme's action will not be applied, since the
665           scheme.
683 DAMOS accounts below statistics for each scheme, from the beginning of the
684 scheme's execution.
686 - ``nr_tried``: Total number of regions that the scheme is tried to be applied.
687 - ``sz_trtied``: Total size of regions that the scheme is tried to be applied.
690 - ``nr_applied``: Total number of regions that the scheme is applied.
691 - ``sz_applied``: Total size of regions that the scheme is applied.
692 - ``qt_exceeds``: Total number of times the quota of the scheme has exceeded.
694 "A scheme is tried to be applied to a region" means DAMOS core logic determined
695 the region is eligible to apply the scheme's :ref:`action
705 "A scheme is applied to a region" means the :ref:`operation set