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| author | Davidlohr Bueso <dave@gnu.org> | 2012-10-08 16:29:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:22:24 +0900 |
| commit | 01dc52ebdf472f77cca623ca693ca24cfc0f1bbe (patch) | |
| tree | 2d0f35f2aff418d52a84fb50974ad3bacf68d4bd /Documentation/ABI | |
| parent | d5dc0ad928fb9e972001e552597fd0b794863f34 (diff) | |
| download | linux-01dc52ebdf472f77cca623ca693ca24cfc0f1bbe.tar.gz | |
oom: remove deprecated oom_adj
The deprecated /proc/<pid>/oom_adj is scheduled for removal this month. Signed-off-by: Davidlohr Bueso <dave@gnu.org> Acked-by: David Rientjes <rientjes@google.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/obsolete/proc-pid-oom_adj | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/Documentation/ABI/obsolete/proc-pid-oom_adj b/Documentation/ABI/obsolete/proc-pid-oom_adj deleted file mode 100644 index 9a3cb88ade47..000000000000 --- a/Documentation/ABI/obsolete/proc-pid-oom_adj +++ /dev/null @@ -1,22 +0,0 @@ -What: /proc/<pid>/oom_adj -When: August 2012 -Why: /proc/<pid>/oom_adj allows userspace to influence the oom killer's - badness heuristic used to determine which task to kill when the kernel - is out of memory. - - The badness heuristic has since been rewritten since the introduction of - this tunable such that its meaning is deprecated. The value was - implemented as a bitshift on a score generated by the badness() - function that did not have any precise units of measure. With the - rewrite, the score is given as a proportion of available memory to the - task allocating pages, so using a bitshift which grows the score - exponentially is, thus, impossible to tune with fine granularity. - - A much more powerful interface, /proc/<pid>/oom_score_adj, was - introduced with the oom killer rewrite that allows users to increase or - decrease the badness score linearly. This interface will replace - /proc/<pid>/oom_adj. - - A warning will be emitted to the kernel log if an application uses this - deprecated interface. After it is printed once, future warnings will be - suppressed until the kernel is rebooted. |