4 ms·

> reduces the performance for nothing Does the code in question ever run in a tight loop (e.g. on file operations after the filesystem is mounted), or just at

• alerighi 5y ago
  We are talking about systemd, that is a core software. I would like systemd to do as few memory allocations as possible. The reason is that memory can run out, especially on embedded devices where you have for example 32Mb of RAM, and you have to properly manage the case that you run out of memory. Most programmers don't, and the program does crash in case you don't have memory available. That is bad for PID 1, because that would mean a kernel panic, that you don't want. If PID 1 does need to do that kind of stuff (as it seems), I would prefer it to fork a process and do the memory allocation in that, so if that process crashes because you are out of memory the kernel doesn't panic.