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Date: Fri, 18 Jan 2013 11:33:40 -0600
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Subject: Re: absurd I/O perf with ZFS: hangs on zfs->cv)
From: Adam Vande More <amvandemore@gmail.com>
To: Eitan Adler <lists@eitanadler.com>
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On Tue, Jan 15, 2013 at 10:57 PM, Eitan Adler <lists@eitanadler.com> wrote:

> Hi all.
>
>
> Running FreeBSD 9.1-Release, I am seeing some absurd hangs (10 minutes
> or more to open a file) with SIGINFO informing me that the process is
> stuck on zio->io_cv.
>
> Does anyone have any suggestions for what I want to look at to tune
> this?
>

https://wiki.freebsd.org/ZFSTuningGuide  Even has a section on laptop
settings.  Also the ZFS Evil Tuning Guide



-- 
Adam Vande More