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| author | David Rientjes <rientjes@google.com> | 2011-09-22 14:11:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-09-22 14:27:14 -0700 |
| commit | e369fde1af20c7c67acff3bc4a36e451f38ae7d0 (patch) | |
| tree | 7918d78ffafc79ea020ffb2115522ecfaef81945 /Documentation/vm/transhuge.txt | |
| parent | a7f4d00a82feb5b311f765bf9522bc55bee0684f (diff) | |
| download | op-kernel-dev-e369fde1af20c7c67acff3bc4a36e451f38ae7d0.zip op-kernel-dev-e369fde1af20c7c67acff3bc4a36e451f38ae7d0.tar.gz | |
thp: fix khugepaged defrag tunable documentation
Commit e27e6151b154 ("mm/thp: use conventional format for boolean
attributes") changed
/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
to be tuned by using 1 (enabled) or 0 (disabled) instead of "yes" and
"no", respectively.
Update the documentation.
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/vm/transhuge.txt')
| -rw-r--r-- | Documentation/vm/transhuge.txt | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/vm/transhuge.txt b/Documentation/vm/transhuge.txt index 0924aac..29bdf62 100644 --- a/Documentation/vm/transhuge.txt +++ b/Documentation/vm/transhuge.txt @@ -123,10 +123,11 @@ be automatically shutdown if it's set to "never". khugepaged runs usually at low frequency so while one may not want to invoke defrag algorithms synchronously during the page faults, it should be worth invoking defrag at least in khugepaged. However it's -also possible to disable defrag in khugepaged: +also possible to disable defrag in khugepaged by writing 0 or enable +defrag in khugepaged by writing 1: -echo yes >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag -echo no >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag +echo 0 >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag +echo 1 >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag You can also control how many pages khugepaged should scan at each pass: |
