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Subject: Re: Changes in vfs.zfs.arc_max on 13
To: Pete Wright <pete@nomadlogic.org>, freebsd-fs@freebsd.org
References: <0961dfe0-922e-8a6f-0bf9-c0685e3ec3d1@nomadlogic.org>
From: Andriy Gapon <avg@FreeBSD.org>
Message-ID: <dcf63f50-5ea6-8524-37b3-577bda3ba06f@FreeBSD.org>
Date: Wed, 12 May 2021 09:40:23 +0300
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On 11/05/2021 20:09, Pete Wright via freebsd-fs wrote:
> The next issue I am seeing is that when setting this variable the example from 
> the handbook states you can do something similar to this (section 20.6.2.3):
> 
> vfs.zfs.arc_max="40M"
> 
> This throws an error on my system:
> $ sudo sysctl vfs.zfs.arc_max=2048M
> sysctl: invalid unsigned long '2048M'
> $ sudo sysctl vfs.zfs.arc_max=2G
> sysctl: invalid unsigned long '2G'
> 
> Using the human unfriendly form works though:
> $ sudo sysctl vfs.zfs.arc.max="2000000000"
> vfs.zfs.arc.max: 0 -> 2000000000
> $
> 
> Is this a bug, or would it be best to also update the documentation accordingly 
> to reflect this?  Personally I like the old behavior as it's easier on my eyes.

Are you sure that that is a recipe for sysctl?
It looks like it was for loader.conf.

-- 
Andriy Gapon