2 ms·

Can you elaborate on how this comment is connected to the article?

• blibble 11mo ago
  did you read it the article? there's a large section on redis the author says it's bad design, but has entirely missed WHY it wants overcommit
  • loeg 11mo ago
    You haven't made a connection, though. What does fork have to do with overcommit? You didn't connect the dots.
    • Spivak 11mo ago
      If you turn overcommit off then when you fork you double the memory usage. The pages are CoW but for accounting purposes it counts as double because writes could require allocating memory and that's not allowed to fail since it's not a malloc. So the kernel has to count it as reserved.