ZFS Evil Tuning Guide

The more arcane tuning techniques for ZFS are now collected on a central page in the solarisinternals.com-Wiki: ZFS Evil Tuning Guide. Before applying the tricks, please read the foreword:

First, consider that the default values are set by the people who know most things about the effects of the tuning. If a better value exists, it would be the default. While alternative values might help a given workload, it could quite possibly degrade some other aspects of performance. Maybe, catastrophically so.