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Date: Mon, 18 Jun 2018 18:01:11 +0100
From: Frank Leonhardt <frank2@fjl.co.uk>
To: freebsd-questions@freebsd.org
Subject: Re: Limiting ZFS ARC =?UTF-8?Q?Size=3F?=
Organization: FJL Microsystems
In-Reply-To: <20180618162419.GA41031@rancor.immure.com>
References: <20180618162419.GA41031@rancor.immure.com>
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On 2018-06-18 17:24, Bob Willcox wrote:
> Is there a way to limit the size of the ZFS ARC cache? I am running a
> 12-current system with 32GB of memory and the ZFS ARC grows to a hughe 
> size,
> to the point where my running processes (such as firefox) start page
> thrashing.

The sysctl variables vfs.zfs.arc_min and vfs.zfs.arc_max may very well 
be what you're looking for.

Regards, Frank.