#!/bin/bash

for score_file in `ls /proc/*/oom_score 2>/dev/null`;
do
    score=$(cat $score_file 2>/dev/null);

    if [[ x$score != 'x' ]]; then
        if [[ $score > 100 ]]; then
            pid=$(echo $score_file 2>/dev/null | awk -F'/' '{print $3}')
            if [[ x$pid != 'x' ]]; then
                cmdline=$(cat /proc/$pid/cmdline 2>/dev/null | tr '\000' ' ')
                if [[ x$cmdline != 'x' ]]; then
                    echo $pid, $score, $cmdline >> /tmp/cmdline
                fi
            fi
        fi
    fi
done

# 怎么用呢？
# 排序目前 oom score 最大的 pid，也就是被 oom-killer 风险最大的进程：cat /tmp/cmdline | sort -rnk2