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1What: /sys/kernel/mm/ksm2Date: September 20093KernelVersion: 2.6.324Contact: Linux memory management mailing list <linux-mm@kvack.org>5Description: Interface for Kernel Samepage Merging (KSM)6 7What: /sys/kernel/mm/ksm/full_scans8What: /sys/kernel/mm/ksm/pages_shared9What: /sys/kernel/mm/ksm/pages_sharing10What: /sys/kernel/mm/ksm/pages_to_scan11What: /sys/kernel/mm/ksm/pages_unshared12What: /sys/kernel/mm/ksm/pages_volatile13What: /sys/kernel/mm/ksm/run14What: /sys/kernel/mm/ksm/sleep_millisecs15Date: September 200916Contact: Linux memory management mailing list <linux-mm@kvack.org>17Description: Kernel Samepage Merging daemon sysfs interface18 19 full_scans: how many times all mergeable areas have been20 scanned.21 22 pages_shared: how many shared pages are being used.23 24 pages_sharing: how many more sites are sharing them i.e. how25 much saved.26 27 pages_to_scan: how many present pages to scan before ksmd goes28 to sleep.29 30 pages_unshared: how many pages unique but repeatedly checked31 for merging.32 33 pages_volatile: how many pages changing too fast to be placed34 in a tree.35 36 run: write 0 to disable ksm, read 0 while ksm is disabled.37 38 - write 1 to run ksm, read 1 while ksm is running.39 - write 2 to disable ksm and unmerge all its pages.40 41 sleep_millisecs: how many milliseconds ksm should sleep between42 scans.43 44 See Documentation/mm/ksm.rst for more information.45 46What: /sys/kernel/mm/ksm/merge_across_nodes47Date: January 201348KernelVersion: 3.949Contact: Linux memory management mailing list <linux-mm@kvack.org>50Description: Control merging pages across different NUMA nodes.51 52 When it is set to 0 only pages from the same node are merged,53 otherwise pages from all nodes can be merged together (default).54 55What: /sys/kernel/mm/ksm/general_profit56Date: April 202357KernelVersion: 6.458Contact: Linux memory management mailing list <linux-mm@kvack.org>59Description: Measure how effective KSM is.60 general_profit: how effective is KSM. The formula for the61 calculation is in Documentation/admin-guide/mm/ksm.rst.62