/proc/pid/oom_score - OOM-killer score
- /proc/pid/oom_score (since Linux 2.6.11)
- This file displays the current score that the kernel gives to this process
for the purpose of selecting a process for the OOM-killer. A higher score
means that the process is more likely to be selected by the OOM-killer.
The basis for this score is the amount of memory used by the process, with
increases (+) or decreases (-) for factors including:
- •
- whether the process is privileged (-).
- Before Linux 2.6.36 the following factors were also used in the
calculation of oom_score:
- •
- whether the process creates a lot of children using fork(2)
(+);
- •
- whether the process has been running a long time, or has used a lot of CPU
time (-);
- •
- whether the process has a low nice value (i.e., > 0) (+); and
- •
- whether the process is making direct hardware access (-).
- The oom_score also reflects the adjustment specified by the
oom_score_adj or oom_adj setting for the process.