Date: Sat, 04 May 2024 07:56:39 -0400 From: "Dan Langille" <dan@langille.org> To: "Jim Long" <freebsd-questions@umpquanet.com>, "mike tancsa" <mike@sentex.net> Cc: "RW via freebsd-questions" <freebsd-questions@freebsd.org> Subject: Re: Unable to limit memory consumption with vfs.zfs.arc_max Message-ID: <3d2f7913-b91d-4d00-a9b4-f37cf1032fc0@app.fastmail.com> In-Reply-To: <ZjVLxKH5LDBZjakR@sfo.umpquanet.com> References: <ZjUYzdiz01GgnbX/@sfo.umpquanet.com> <4299f196-1fbe-4590-8668-d023d7044e8d@sentex.net> <ZjVLxKH5LDBZjakR@sfo.umpquanet.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, May 3, 2024, at 4:40 PM, Jim Long wrote: > Thank you, Mike. It looks like they're both getting set, so sadly no > progress, but I have updated my sysctl.conf to keep up with the times. > > Jim > > # sysctl -a | grep vfs.*arc.max > vfs.zfs.arc_max: 4294967296 > vfs.zfs.arc.max: 4294967296 > > # grep vfs.*arc.max /etc/sysctl.conf > #vfs.zfs.arc_max=4294967296 > vfs.zfs.arc.max=4294967296 This is from FreeBSD 14 on an Dell R730 in the basement (primary purpose, poudriere, and PostgreSQL, and running four FreshPorts nodes): >From top: ARC: 34G Total, 14G MFU, 9963M MRU, 22M Anon, 1043M Header, 9268M Other 18G Compressed, 41G Uncompressed, 2.28:1 Ratio % grep arc /boot/loader.conf vfs.zfs.arc_max="36000M" Looks like the value to set is: % sysctl -a vfs.zfs.arc | grep max vfs.zfs.arc.max: 37748736000 Perhaps not a good example, but this might be more appropriate: % grep vfs.zfs.arc.max /boot/loader.conf vfs.zfs.arc_max="1200M" with top showing: ARC: 1198M Total, 664M MFU, 117M MRU, 3141K Anon, 36M Header, 371M Other 550M Compressed, 1855M Uncompressed, 3.37:1 Ratio -- Dan Langille dan@langille.org
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3d2f7913-b91d-4d00-a9b4-f37cf1032fc0>