On Sunday, July 19, 2020 1:47:23 AM MST Alexey A. wrote:
>Killing users' programs needlessly is not welcome
Setting limits for cgroup (MemoryMax, MemorySwapMax) leads to "Killing
users' programs needlessly": system-wide available memory may be not
exhausted, but OOM killer will be invoked in this cgroup.
I'm sure we can all agree that only killing off the software that people
complain causes these events is better than killing off everything else just
because the system doesn't have a ton of RAM available.
>The goal is to ensure the kernel can keep doing its job,
it's
>not going to try to figure out what you intend for userspace, as well it
>shouldn't.
The goal is to ensure the kernel can keep doing its job *and userspace*
doing its job. I don't need a system where the kernel is alive, but
userspace is dead.
Userspace isn't dead when a system is thrashing. Your software is still
running. If it gets killed, you're most likely going to lose your data.
--
John M. Harris, Jr.