From owner-freebsd-stable@FreeBSD.ORG  Wed Nov 17 07:47:06 2010
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Date: Wed, 17 Nov 2010 08:47:05 +0100
Message-ID: <AANLkTi=XwO0RrU9uY5CF5p+b9co1yneXX7UR2JsF55bL@mail.gmail.com>
From: Christer Solskogen <christer.solskogen@gmail.com>
To: Jeremy Chadwick <freebsd@jdc.parodius.com>
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Cc: freebsd-stable@freebsd.org, Ivan Voras <ivoras@freebsd.org>
Subject: Re: "High" cpu usage when using ZFS cache device
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On Wed, Nov 17, 2010 at 7:46 AM, Christer Solskogen
<christer.solskogen@gmail.com> wrote:
> On Tue, Nov 16, 2010 at 5:55 PM, Christer Solskogen
> <christer.solskogen@gmail.com> wrote:
> <snip>
>
> Yesterday I installed 8.1-RELEASE on another machine, made a zpool and
> added the same usb device as cache. That machine does not have same
> issue as my other machine.

I also tried adding a SSD as a cache device to the machine that gets
the high load. Same symptoms as if I added a USB stick.
Will try to reboot server now to se if that has any impact.

-- 
chs,