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Subject: [Bug 212269] ZFS ARC appears to ignore vfs.zfs.arc_max
Date: Tue, 30 Aug 2016 19:34:49 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D212269

            Bug ID: 212269
           Summary: ZFS ARC appears to ignore vfs.zfs.arc_max
           Product: Base System
           Version: 10.2-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: conf
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: scratch65535@att.net
                CC: freebsd-amd64@FreeBSD.org
                CC: freebsd-amd64@FreeBSD.org

ZFS was grabbing all but 1G of my server-of-all-work's 32G memory (the list=
ed
default behavior, which seems ridiculous). To afford other jobs memory in w=
hich
to run, I put=20

vfs.zfs.arc_max=3D"8G"=20

into /boot/loader.conf and rebooted.  But tops and zfs-stats continue to re=
port
that ZFS still claims 28G for itself.=20=20

Thinking it might be a regression to when "M" and "G" weren't being
interpreted, I tried entering the limit in bytes (8796093022208) instead bu=
t it
made no difference.

--=20
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