The patch titled
oom_adj/oom_score documentation
has been added to the -mm tree. Its filename is
oom_adj-oom_score-documentation.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: oom_adj/oom_score documentation
From: Jan-Frode Myklebust <mykleb@xxxxxxxxxx>
I was looking for the a way around an OOM-problem, and found a couple of
undocumented new features for tuning the OOM-score of individual processes.
Here's a small documentation patch for /proc/<pid>/oom_adj and
/proc/<pid>/oom_score.
Signed-off-by: Jan-Frode Myklebust <mykleb@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
Documentation/filesystems/proc.txt | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff -puN Documentation/filesystems/proc.txt~oom_adj-oom_score-documentation Documentation/filesystems/proc.txt
--- a/Documentation/filesystems/proc.txt~oom_adj-oom_score-documentation
+++ a/Documentation/filesystems/proc.txt
@@ -39,6 +39,8 @@ Table of Contents
2.9 Appletalk
2.10 IPX
2.11 /proc/sys/fs/mqueue - POSIX message queues filesystem
+ 2.12 /proc/<pid>/oom_adj - Adjust the oom-killer score
+ 2.13 /proc/<pid>/oom_score - Display current oom-killer score
------------------------------------------------------------------------------
Preface
@@ -1962,6 +1964,22 @@ a queue must be less or equal then msg_m
maximum message size value (it is every message queue's attribute set during
its creation).
+2.12 /proc/<pid>/oom_adj - Adjust the oom-killer score
+------------------------------------------------------
+
+This file can be used to adjust the score used to select which processes
+should be killed in an out-of-memory situation. Giving it a high score will
+increase the likelihood of this process being killed by the oom-killer. Valid
+values are in the range -16 to +15, plus the special value -17, which disables
+oom-killing altogether for this process.
+
+2.13 /proc/<pid>/oom_score - Display current oom-killer score
+-------------------------------------------------------------
+
+------------------------------------------------------------------------------
+This file can be used to check the current score used by the oom-killer is for
+any given <pid>. Use it together with /proc/<pid>/oom_adj to tune which
+process should be killed in an out-of-memory situation.
------------------------------------------------------------------------------
Summary
_
Patches currently in -mm which might be from mykleb@xxxxxxxxxx are
oom_adj-oom_score-documentation.patch
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