From: Jan-Frode Myklebust 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//oom_adj and /proc//oom_score. Signed-off-by: Jan-Frode Myklebust Signed-off-by: Andrew Morton --- 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//oom_adj - Adjust the oom-killer score + 2.13 /proc//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//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//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 . Use it together with /proc//oom_adj to tune which +process should be killed in an out-of-memory situation. ------------------------------------------------------------------------------ Summary _