On Sun, Mar 11, 2018 at 10:43:58AM -1000 I heard the voice of Jeff Roberson, and lo! it spake thus: > > First, I would like to identify whether the wired memory is in the > buffer cache. Can those of you that have a repro look at sysctl > vfs.bufspace and tell me if that accounts for the bulk of your wired > memory usage? I'm wondering if a job ran that pulled in all of the > bufs from your root disk and filled up the buffer cache which > doesn't have a back-pressure mechanism.
If by "root disk", you mean the one that isn't ZFS, that wouldn't touch anything here; apart from a md-backed UFS /tmp and some NFS mounts, everything on my system is ZFS. I believe vfs.bufspace is what shows up as "Buf" on top? I don't recall it looking particularly interesting when things were madly swapping. I'll uncork arc_max again for a bit and see if anything odd shows up in it, but it's only a dozen megs or so now. -- Matthew Fuller (MF4839) | fulle...@over-yonder.net Systems/Network Administrator | http://www.over-yonder.net/~fullermd/ On the Internet, nobody can hear you scream. _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
