Changes in vfs.zfs.arc_max on 13

Miroslav Lachman 000.fbsd at
Wed May 12 16:50:32 UTC 2021

On 12/05/2021 18:06, Pete Wright via freebsd-fs wrote:


> Ah interesting, the examples certainly refer to loader.conf knobs. I had 
> mistakenly assumed that the sysctl values would take the same form. 
> Section 20.6.1 of the handbook isn't clear on this distinction:
> "This value can be adjusted at runtime with sysctl(8) 
> <> 
> and can be set in /boot/loader.conf or /etc/sysctl.conf."
> zfs-module-parameters(5) is a bit more clear on this it looks like. Is 
> it common for loader variables to accept different formatted values for 
> the same knob?

It is really user-unfriendly to accept 2048M in the loader.conf but not 
in sysctl.conf / sysctl command. I think it always should accept the 
same format. And human formatted is the preferred way.

Just my $0.02

Miroslav Lachman

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