9.1-current disk throughput stalls ?

[Jeremy Chadwick]

On Mon, Jun 03, 2013 at 03:34:26PM -0700, Jeremy Chadwick wrote:
> 7. ZFS setup is a mirror (RAID-1-like),

Should have referenced [2].

> 12. Rolling back to 8.4-STABLE (date/build unknown) apparently fixes
> your issue (I would appreciate you running the system for 72 hours
> before making this statement, and doing the *exact same things* on it
> that cause the problem with 9.1-STABLE) [2]

I should have used the word "exacerbate" instead of "cause".

> v) I really wish you would not have rolled this system back to
> 8.4-STABLE.  For anyone to debug this, we need the system in a
> consistent state.  Changing kernels/etc. 

User error while using vim (I have an awful tendency to nuke entire
lines when switching between input mode vs. navigation mode); last line
should read "Changing kernels/etc. in the middle of troubleshooting a
problem you ask for assistance with makes things very difficult".  (And
I say that knowing that rolling back as a form of testing is good, since
it can help narrow things down to a specific version or release, i.e. a
software problem).

-- 
| Jeremy Chadwick                                   jdc at koitsu.org |
| UNIX Systems Administrator                http://jdc.koitsu.org/ |
| Making life hard for others since 1977.             PGP 4BD6C0CB |