https://github.com/lukeshirnia/oom-killer-score

Python and bash scripts to analyze all system process oom_scores and sort by the highest value (most likely to get killed)
https://github.com/lukeshirnia/oom-killer-score

bash linux oom out-of-memory python

Last synced: 2 months ago
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Python and bash scripts to analyze all system process oom_scores and sort by the highest value (most likely to get killed)

• Host: GitHub
• URL: https://github.com/lukeshirnia/oom-killer-score
• Owner: LukeShirnia
• Created: 2016-04-26T19:42:28.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2023-02-14T14:38:00.000Z (almost 2 years ago)
• Last Synced: 2024-02-14T21:25:25.134Z (12 months ago)
• Topics: bash, linux, oom, out-of-memory, python
• Language: Python
• Homepage:
• Size: 5.86 KB
• Stars: 7
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# OOM-Killer

Here are 2 scripts designed to asses the systems processes and their oom_score. 


The oom score will dictate which process is most likely to be killed next by the kernel when oom-killer is invoked (due to low memory (ram))

 

  

Safest way to run the script: 


`git clone https://github.com/LukeShirnia/OOM-Killer-score.git` 


`cd OOM-Killer-score` 


`python score_check.py` 


To run script:

Note: the python script runs faster than the bash script. 


`curl -s https://raw.githubusercontent.com/LukeShirnia/OOM-Killer-score/master/score_check.sh | bash` 


`curl -s https://raw.githubusercontent.com/LukeShirnia/OOM-Killer-score/master/score_check.py | python`

Or you can use the following bash one-liner (but again, python is quicker):

 `for i in $(find /proc -maxdepth 1 -type d); do if [ -f "$i"/oom_score ]; then printf "$(cat "$i"/oom_score) "; pid=$(echo "$i" | awk -F'/' '{print $3}';); if [ "$(cat "$i"/oom_score)" -ge 1 ];then printf "$(ps -p "$pid" -o comm=) "; fi; printf "$i/oom_score \n"; fi; done | awk '$1 > 1' | sort -nr -k1 `

 

## Example output:

```

121 mysqld /proc/24828/oom_score

103 rackspace-monit /proc/15168/oom_score 

94 varnishd /proc/13528/oom_score 

84 varnishd /proc/13527/oom_score 

45 php-fpm /proc/25685/oom_score 

44 php-fpm /proc/25686/oom_score 

42 php-fpm /proc/6820/oom_score 

42 php-fpm /proc/25687/oom_score 

41 php-fpm /proc/25684/oom_score 

40 php-fpm /proc/25683/oom_score 

39 php-fpm /proc/26555/oom_score 

36 php-fpm /proc/2879/oom_score 

36 php-fpm /proc/2868/oom_score 

19 php-fpm /proc/25681/oom_score 

17 firewalld /proc/529/oom_score 

16 driveclient /proc/21200/oom_score 

13 python /proc/10338/oom_score 

10 tuned /proc/871/oom_score 

9 polkitd /proc/4899/oom_score 

8 fail2ban-server /proc/13549/oom_score 

6 php-fpm /proc/25692/oom_score 

6 php-fpm /proc/25691/oom_score 

6 php-fpm /proc/25690/oom_score 

6 php-fpm /proc/25689/oom_score 

6 php-fpm /proc/25688/oom_score

```