[Bug 269503] docs.freebsd.org: default vfs.zfs.arc.meta_limit

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From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 12 Feb 2023 13:15:45 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=269503

Graham Perrin <grahamperrin@freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |maintainer-feedback?(fs@Fre
                   |                            |eBSD.org)
                 CC|                            |fs@FreeBSD.org,
                   |                            |grahamperrin@freebsd.org
           Keywords|                            |needs-qa

--- Comment #1 from Graham Perrin <grahamperrin@freebsd.org> ---
I don't know about ZFS in 12.4-RELEASE. 

----

For OpenZFS in 13.0-RELEASE and greater, take care to not confuse these two: 

vfs.zfs.arc.meta_limit_percent: 75
vfs.zfs.arc.meta_limit: 0

fs@ please, can you advise? 


References: 

<https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Module%20Parameters.html#zfs-arc-meta-limit>

<https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Module%20Parameters.html#zfs-arc-meta-limit-percent>

----

From
<https://openzfs.github.io/openzfs-docs/Developer%20Resources/OpenZFS%20Exceptions.html?highlight=6914>: 

> 6914    •    Under Linux the arc_meta_limit can be tuned with the 
> zfs_arc_meta_limit_percent module option.

Is Linux still exceptional?

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