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Date: Thu, 20 Mar 2025 07:58:36 +0100
From: hch <hch@lst.de>
To: Dave Chinner <david@fromorbit.com>
Cc: Hans Holmberg <Hans.Holmberg@wdc.com>,
	"linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>,
	"Darrick J . Wong" <djwong@kernel.org>, hch <hch@lst.de>
Subject: Re: [RFC PATCH] xfs: add mount option for zone gc pressure
Message-ID: <20250320065836.GA14071@lst.de>
References: <20250319081818.6406-1-hans.holmberg@wdc.com> <Z9qKUt1iPsQTTKu-@dread.disaster.area>
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On Wed, Mar 19, 2025 at 08:11:46PM +1100, Dave Chinner wrote:
> It seems to me that this is runtime workload dependent, and so maybe
> a tunable variable in /sys/fs/xfs/<dev>/.... might suit better?
> 
> That way it can be controlled by a userspace agent as the filesystem
> fills and empties rather than being fixed at mount time and never
> really being optimal for a changing workload...

Yes.  In theory a remount could also change the paramter, but that
is very heavy handed.