OOM-killer
1. OOM-killer简介
2. 如何防止程序被oom-killer杀掉
sudo bash -c "echo '-15' | tee /proc/5641/oom_adj"
3. Reference
https://stackoverflow.com/questions/35791416/how-to-disable-the-oom-killer-in-linux 介绍oom_adj
https://askubuntu.com/questions/291378/do-we-still-need-swap-partitions-on-servers 介绍swap分区和oom的关系