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Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/vm/ksm.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/vm/ksm.txt b/Documentation/vm/ksm.txt index b392e496f816..25cc89ba811b 100644 --- a/Documentation/vm/ksm.txt +++ b/Documentation/vm/ksm.txt @@ -58,6 +58,13 @@ sleep_millisecs - how many milliseconds ksmd should sleep before next scan e.g. "echo 20 > /sys/kernel/mm/ksm/sleep_millisecs" Default: 20 (chosen for demonstration purposes) +merge_across_nodes - specifies if pages from different numa nodes can be merged. + When set to 0, ksm merges only pages which physically + reside in the memory area of same NUMA node. It brings + lower latency to access to shared page. Value can be + changed only when there is no ksm shared pages in system. + Default: 1 + run - set 0 to stop ksmd from running but keep merged pages, set 1 to run ksmd e.g. "echo 1 > /sys/kernel/mm/ksm/run", set 2 to stop ksmd and unmerge all pages currently merged, |