Date: Mon, 15 Jul 2024 23:35:22 -1000 From: ax disroo <ax61@disroot.org> To: Jim Long <freebsd-questions@umpquanet.com> Cc: Dan Langille <dan@langille.org>, RW via freebsd-questions <freebsd-questions@freebsd.org>, freebsd questions <freebsd-questions@freebsd.org> Subject: Re: Unable to limit memory consumption with vfs.zfs.arc_max Message-ID: <4A8DDEA3-CD0A-4294-BFEE-155E07B8EA18@disroot.org> In-Reply-To: <ZpWWPh/16gVfJmx4@sfo.umpquanet.com>
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[-- Attachment #1 --] > On Jul 15, 2024, at 11:36 AM, Jim Long wrote: … > The ARC used frequently sails right past > the 4G limit. It seems the daily periodic job is one task which can > push the kernel to violate the vfs.zfs.arc_max limitation. … Have you tried these MIBs (set in loader.conf(5) or via sysctl(8), check that) … - vfs.zfs.arc.free_target: Desired number of free pages below which ARC triggers reclaim; - vfs.zfs.arc.sys_free https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Module%20Parameters.html#zfs-arc-sys-free … ? - Anubhav [-- Attachment #2 --] <html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"><blockquote type="cite">On Jul 15, 2024, at 11:36 AM, Jim Long wrote:<br></blockquote>…</div><blockquote type="cite"><div dir="ltr"><span>The ARC used frequently sails right past</span><br><span>the 4G limit. It seems the daily periodic job is one task which can</span><br><span>push the kernel to violate the vfs.zfs.arc_max limitation.</span><br></div></blockquote>…<div><br></div><div>Have you tried these MIBs (set in loader.conf(5) or via sysctl(8), check that) …</div><div><br></div><div>- vfs.zfs.arc.free_target: Desired number of free pages below which ARC triggers reclaim;</div><div><br></div><div>- vfs.zfs.arc.sys_free <a href="https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Module%20Parameters.html#zfs-arc-sys-free">https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Module%20Parameters.html#zfs-arc-sys-free</a></div><div><br></div><div>… ?</div><div><br></div><div>- Anubhav</div></body></html>home | help
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