lt) is overkill; any rotating HDD should easily be able to max
> out its consecutive write IOPs with 128kB operation size.  I'll add a
> read-only sysctl for g_eli_alloc_sz too.  Thanks Mark.
>
> -Alan
>
> Setting this on one of my production machines that uses zfs behind geli d=
rops the load average quite materially with zero impact on throughput that =
I can see (thus far.)  I will run this for a while but it certainly doesn't=
 appear to have any negatives associated with it and does appear to improve=
 efficiency quite a bit.

Great news!  Also, FTR I should add that this advice only applies to
people who use HDDs.  For SSDs zfs uses a different aggregation limit,
and the default value is already low enough.
-Alan