Date: Fri, 13 Oct 2023 21:20:22 +0100 From: Graham Perrin <grahamperrin@gmail.com> To: freebsd-current@freebsd.org Subject: vfs.zfs.arc.min (was: how to set vfs.zfs.arc.max in 15-current ?) Message-ID: <ab7e564b-cbc9-4ea3-8463-704d2acbe56b@gmail.com> In-Reply-To: <65CDDDE1-42E4-4DA7-B331-E721E9FBF1C1@me.com> References: <ZSgtvuWSpRKxIE9N@int21h> <20231012182749.AA34F185@slippy.cwsent.com> <ZSh6YHLphkO2u-Ea@int21h> <695E4868-EF98-4CBE-A0CE-CEF10A009D65@FreeBSD.org> <ZSjlI-spP0RfYVoK@int21h> <65CDDDE1-42E4-4DA7-B331-E721E9FBF1C1@me.com>
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On 13/10/2023 07:46, Toomas Soome wrote: > >> On 13. Oct 2023, at 09:35, void <void@f-m.fm> wrote: >> >> On Fri, Oct 13, 2023 at 08:12:47AM +0200, Juraj Lutter wrote: >> >>> Set also vfs.zfs.arc.min to some value higher than zero. >> aha! that worked!!! :D >> >> root@beer:/root# sysctl vfs.zfs.arc.min=1073741824 >> vfs.zfs.arc.min: 0 -> 1073741824 >> root@beer:/root# sysctl vfs.zfs.arc.max=8589934592 >> vfs.zfs.arc.max: 0 -> 8589934592 >> root@beer:/root# >> thank you! >> -- >> > That is a bit odd, arc min used to be 64MB as lowest value - that is, it should never be 0. > > rgds, > toomas 0 here, when not set. <https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Module%20Parameters.html#zfs-arc-max>; describes the effect of 0, <https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Module%20Parameters.html#zfs-arc-min>; on the same page does not. A gap in documentation upstream?
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