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From: Andriy Gapon <avg@FreeBSD.org>
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To: Freddie Cash <fjwcash@gmail.com>
Subject: Re: Strange slowdown when cache devices enabled in ZFS
References: <CAOjFWZ6Q=Vs3P-kfGysLzSbw4CnfrJkMEka4AqfSrQJFZDP_qw@mail.gmail.com>
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on 14/03/2013 20:13 Freddie Cash said the following:
> the l2arc_feed_thread of zfskern will spin until it takes up 100%
> of a CPU core

If you see a thread taking 100% where it shouldn't, then just profile it and
actually see what it's doing.

-- 
Andriy Gapon