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.

one thing i've noticed is growing swap usage but plenty of free and inactive memory as well as a GB or so of memory in the Laundry state according top.  my understanding is that seeing swap usage grow over time is expected and doesn't necessarily indicate a problem.  but what concerns me is the system locking up while seeing quite a bit of disk i/o (maybe from paging back in?).

in order to help chase this down i've setup the prometheus_sysctl_exporter(8) to send data to a local prometheus instance.  the goal is to examine memory utilizaton over time to help detect any issues. so my question is this:

what OID's would be useful to help see to help diagnose weird memory issues like this?

i'm currently looking at:
sysctl_vm_domain_0_stats_laundry
sysctl_vm_domain_0_stats_active
sysctl_vm_domain_0_stats_free_count
sysctl_vm_domain_0_stats_inactive_pps


thanks in advance - and i'd be happy to share my data if anyone is interested :)
-pete

--
Pete Wright
p...@nomadlogic.org
@nomadlogicLA


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