vfs.zfs.arc.free_target and vfs.zfs.arc.sys_free (was: RFC: How ZFS handles arc memory use)

In reply to: Rick Macklem : "Re: RFC: How ZFS handles arc memory use"
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From: Graham Perrin <grahamperrin_at_gmail.com>
Date: Wed, 04 Mar 2026 02:19:44 UTC

On 03/03/2026 22:25, Rick Macklem wrote:

> On Tue, Mar 3, 2026 at 12:33 PM Doug Ambrisko <ambrisko@ambrisko.com> wrote:
>> …
> Have any of you guys tried increasing vfs.zfs.arc.free_target?
>
>
> …

Also FYI

vfs.zfs.arc.sys_free

I never used it, never needed to. I'm regurgitating words from 
<https://wiki.freebsd.org/Myths#ZFS_will_use_too_much_memory>, part of 
which might be incorrect (I edited, but lost track of things – sorry).