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Date: Tue, 01 Mar 2016 18:17:53 +0100
From: Miroslav Lachman <000.fbsd@quip.cz>
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To: Steven Hartland <killing@multiplay.co.uk>, freebsd-fs@freebsd.org
Subject: Re: abnormally high CPU load after zfs destroy
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Steven Hartland wrote on 02/29/2016 22:21:
> Its likely churning through the actual delete, show system processes in
> top and you'll see it.

Yes, there are about 300 kernel thread doing ZFS work, but should it 
really bomb the system that way? The system is heavilly lagging for 
about 10 minutes. Are there any sysctl to control this behavior?

Miroslav Lachman