Re: Chasing OOM Issues - good sysctl metrics to use?

Hi,

On Thu, Apr 21, 2022 at 07:16:42PM -0700, Pete Wright wrote:
>hello -
>
>on my workstation running CURRENT (amd64/32g of ram) i've been running
>into a scenario where after 4 or 5 days of daily use I get an OOM event
>and both chromium and firefox are killed.  then in the next day or so
>the system will become very unresponsive in the morning when i unlock my
>screensaver in the morning forcing a manual power cycle.

I have the following set in /etc/sysctl.conf on a stable/13 workstation. 
Am using zfs with 32GB RAM.

vm.pageout_oom_seq=120
vm.pfault_oom_attempts=-1
vm.pageout_update_period=0

Since setting these here, OOM is a rarity. I don't profess to exactly know
what they do in detail though. But my experience since these were set
is hardly any OOM and big users of memory like firefox don't crash.
-- 
J.