Wired memory consumes almost all my memory recently
Mateusz Piotrowski
0mp at FreeBSD.org
Tue Mar 3 10:24:20 UTC 2020
Hi current@,
I'm experiencing some problems with memory on r358410.
I'm building a lot of ports in poudriere for testing purposes, which is
very a resource-intensive operation. After a couple of hours of such a
workload, the machine starts to become much less responsive (e.g., it
takes a couple seconds to start a new tmux pane). When I run top I would
always see that almost all my memory is wired (15G), swap reports a
couple of hundreds megabytes being used, and the free memory is less
than 100M.
If I kill all my desktop processes like Firefox and Thunderbird (it
takes a couple of minutes to complete this task!) then the machine
becomes responsive again, still having maybe a couple hundreds of
megabytes of free memory for me.
I thought that maybe this is an ARC problem (I'm using ZFS) but it
didn't help to restrict ARC to 8G by setting sysctl
vfs.zfs.arc_max=8517738496.
I think that I've never experienced similar problems before.
Cheers,
Mateusz Piotrowski
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