From 871769a6f62cb260caa11368d4604c6ff1a1ce55 Mon Sep 17 00:00:00 2001 From: Petr Holasek Date: Fri, 22 Feb 2013 16:35:02 -0800 Subject: [PATCH] --- yaml --- r: 356583 b: refs/heads/master c: f00dc0ee5a8e7fd513b05a2446c26be203c05004 h: refs/heads/master i: 356581: 6480b742ea04ec317e24ca9db927f09f149fc8e6 356579: 0194d63dd9783e6645730764945c5aa64a1c3e82 356575: d7d0fcfe31e4d02473fc0027b35d09143bb5fbe1 v: v3 --- [refs] | 2 +- .../ABI/testing/sysfs-kernel-mm-ksm | 52 +++++++++++++++++++ 2 files changed, 53 insertions(+), 1 deletion(-) create mode 100644 trunk/Documentation/ABI/testing/sysfs-kernel-mm-ksm diff --git a/[refs] b/[refs] index f750147a6d74..4c3ccd2fc345 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 90bd6fd31c8097ee4ddcb74b7e08363134863de5 +refs/heads/master: f00dc0ee5a8e7fd513b05a2446c26be203c05004 diff --git a/trunk/Documentation/ABI/testing/sysfs-kernel-mm-ksm b/trunk/Documentation/ABI/testing/sysfs-kernel-mm-ksm new file mode 100644 index 000000000000..73e653ee2481 --- /dev/null +++ b/trunk/Documentation/ABI/testing/sysfs-kernel-mm-ksm @@ -0,0 +1,52 @@ +What: /sys/kernel/mm/ksm +Date: September 2009 +KernelVersion: 2.6.32 +Contact: Linux memory management mailing list +Description: Interface for Kernel Samepage Merging (KSM) + +What: /sys/kernel/mm/ksm/full_scans +What: /sys/kernel/mm/ksm/pages_shared +What: /sys/kernel/mm/ksm/pages_sharing +What: /sys/kernel/mm/ksm/pages_to_scan +What: /sys/kernel/mm/ksm/pages_unshared +What: /sys/kernel/mm/ksm/pages_volatile +What: /sys/kernel/mm/ksm/run +What: /sys/kernel/mm/ksm/sleep_millisecs +Date: September 2009 +Contact: Linux memory management mailing list +Description: Kernel Samepage Merging daemon sysfs interface + + full_scans: how many times all mergeable areas have been + scanned. + + pages_shared: how many shared pages are being used. + + pages_sharing: how many more sites are sharing them i.e. how + much saved. + + pages_to_scan: how many present pages to scan before ksmd goes + to sleep. + + pages_unshared: how many pages unique but repeatedly checked + for merging. + + pages_volatile: how many pages changing too fast to be placed + in a tree. + + run: write 0 to disable ksm, read 0 while ksm is disabled. + write 1 to run ksm, read 1 while ksm is running. + write 2 to disable ksm and unmerge all its pages. + + sleep_millisecs: how many milliseconds ksm should sleep between + scans. + + See Documentation/vm/ksm.txt for more information. + +What: /sys/kernel/mm/ksm/merge_across_nodes +Date: January 2013 +KernelVersion: 3.9 +Contact: Linux memory management mailing list +Description: Control merging pages across different NUMA nodes. + + When it is set to 0 only pages from the same node are merged, + otherwise pages from all nodes can be merged together (default).