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Commit c67350bc authored by Suren Baghdasaryan's avatar Suren Baghdasaryan Committed by Gerrit Code Review
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Merge changes from topic "default_psi_kill_mode" 

* changes:
  lmkd: Prevent killing foreground processes due to thrashing
  lmkd: Add optional kill reason description into kill reports
  lmkd: Enable new kill strategy, add and adjust required system properties
  lmkd: Use aggregate zone watermarks as low memory threshold
  lmkd: Introduce kill strategy based on zone watermarks, swap and thrashing
  lmkd: Support variable polling intervals set by event handlers
  lmkd: Change zoneinfo parsing to retrieve zone watermarks
  lmkd: Change procfs read routine to handle files larger than 1 page in size
parents 7709bcf8 4b750888

lmkd/README.md

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@@ -60,6 +60,31 @@ properties: 
                             any eligible task (fast decision). Default = false



  ro.lmk.kill_timeout_ms:    duration in ms after a kill when no additional

                             kill will be done, Default = 0 (disabled)

                             kill will be done. Default = 0 (disabled)



  ro.lmk.debug:              enable lmkd debug logs, Default = false



  ro.lmk.swap_free_low_percentage: level of free swap as a percentage of the

                             total swap space used as a threshold to consider

                             the system as swap space starved. Default for

                             low-RAM devices = 10, for high-end devices = 20



  ro.lmk.thrashing_limit:    number of workingset refaults as a percentage of

                             the file-backed pagecache size used as a threshold

                             to consider system thrashing its pagecache.

                             Default for low-RAM devices = 30, for high-end

                             devices = 100



  ro.lmk.thrashing_limit_decay: thrashing threshold decay expressed as a

                             percentage of the original threshold used to lower

                             the threshold when system does not recover even

                             after a kill. Default for low-RAM devices = 50,

                             for high-end devices = 10



  ro.lmk.psi_partial_stall_ms: partial PSI stall threshold in milliseconds for

                             triggering low memory notification. Default for

                             low-RAM devices = 200, for high-end devices = 70



  ro.lmk.psi_complete_stall_ms: complete PSI stall threshold in milliseconds for

                             triggering critical memory notification. Default =

                             700

lmkd/lmkd.c

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