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| author | Ebru Akagunduz <[email protected]> | 2015-11-05 18:47:32 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2015-11-05 19:34:48 -0800 |
| commit | 80f73b4b71f767f7fcd85f68be18af7795904484 (patch) | |
| tree | aef70a488868e4d169e5c2bdc9f18ce1ef8b0346 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 3608de0787e51d3d826656e105524b48ade7b16f (diff) | |
Documentation/vm/transhuge.txt: add information about max_ptes_swap
max_ptes_swap specifies how many pages can be brought in from swap when
collapsing a group of pages into a transparent huge page.
/sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_swap
A higher value can cause excessive swap IO and waste memory. A lower
value can prevent THPs from being collapsed, resulting fewer pages being
collapsed into THPs, and lower memory access performance.
Signed-off-by: Ebru Akagunduz <[email protected]>
Acked-by: Rik van Riel <[email protected]>
Acked-by: David Rientjes <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Kirill A. Shutemov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions