absurd I/O perf with ZFS: hangs on zfs->cv)

[Eitan Adler]

On 15 January 2013 23:57, Eitan Adler <lists at 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?   This is on a newly bought laptop with large amounts of RAM and
> almost nothing else running.

It is taking me 45 minutes to make 5 commits to git.  Something is
wrong here but I have no idea what I should be looking at.  Any ideas?

-- 
Eitan Adler