4 ms·

PSI polling is also good, but there’s no substitute for knowing for sure that the OOM killer is awake and hunting.

• man8alexd 3mo ago
  You can't know when the OOM killer is awake and hunting. The kernel doesn't know that.
  • zbentley 3mo ago
    The approach I originally described provides a useful early warning system for that condition. It’s not perfect, but has proven useful and better than nothing many times.