Just for the tally, yes I've noticed similar patterns on a Ryzen 2400G and an AMD A6. The usage appeared to be relative to yours given my system's memory (16GB on the Ryzen and 8GB on the A6). Unfortunately I don't have NetBSD installed on anything at the moment and cannot provide actual numbers.
On Thu, Oct 29, 2026 at 2:57 PM Greg Troxel <[email protected]> wrote: > > I have a pretty normal system, 9th generation i7 with 32 GB of RAM. The > only semi-odd thing is that I run ZFS. Less odd, the nextcloud sync > client and syncthing. It was crashy on NetBSD 10, but was solid on > NetBSD 11 as soon as I updated. (11 has fixes for flushing dirty mmap'd > pages and some other locking issues, so this is not surprising.) I've > been updating every month or so along NetBSD 11. > > I was rebuilding NetBSD on various branches, one at a time with -j2 > (should be not really noticeable). I noticed firefox was very laggy, > and then I noticed in top that the system was io bound and paging hard. > Wired memory had begun to consume 75% of RAM. > > Memory: 307M Act, 121M Inact, 24G Wired, 52M Exec, 306M File, 343M Free > Swap: 40G Total, 660M Used, 39G Free / Pools: 6949M Used / Network: 4K In, > 3K Out > > After rebooting, it was "only" a few hundred MB. > > Just now, after not particularly hard use > > 5:43PM up 1 day, 8:13, 27 users, load averages: 0.38, 0.65, 0.52 > > Memory: 12G Act, 777M Inact, 2070M Wired, 523M Exec, 9301M File, 3701M Free > Swap: 40G Total, 40G Free / Pools: 12G Used / Network: 10K In, 6K Out > > which is not trouble yet but heading in the wrong direction. I had not > started syncthing, trying to simplify. > > I was the first time, I think, running kernel from September 29, and now > am on sources from October 28 about 12Z. > > I do not remeber this happneing before. I suspect that I updated to > NetBSD 11 in May or June; I can't remember my last zfs lockup. > > I do have 12 GB in pools, but I suspect that's a lot of ZFS ARC that > does get freed under memory pressure. > > Another 11 system that is my dom0 for pkg builders, also ZFS, after 24h > of uptime (it's stable; I've just done a build/update/reboot pass.) > > Memory: 2199M Act, 1097M Inact, 19M Wired, 110M Exec, 1948M File, 413M Free > Swap: 40G Total, 40G Free / Pools: 5818M Used / Network: 74K In, 150K Out > > A NetBSD 10 system that's been up 30 days: > > Memory: 2476M Act, 1355M Inact, 17M Wired, 192M Exec, 1662M File, 311M Free > Swap: / Pools: 639M Used / Network: 40G In, 39G Out > > which is starting to be a pattern. > > So: > > Is anyone else seeing excessive/growing wired memory? > > Other than vmstat -s to see the wired page count, anything I should be > watching? >
