PS: it doesn't necessarily matter if free memory lies, because it's often been said that free memory (by some definition of the term) is wasted memory - memory not being used for anything useful.
Even with zfs not in the picture, there's free memory that's actually cached pages that are not being used by anything, and then there's free memory that's held in reserve to quickly respond to allocations. The former could quickly be converted to the latter if it were depleted. So even if free memory were a little more meaningful than it now is, it still wouldn't give a good picture of what's going on unless you understand all the differences between (a particular version of) [Open]Solaris and whatever else (e.g. Linux) you're used to. [Open]Solaris usually does a pretty good job of memory management and allocation; as one example, see http://en.wikipedia.org/wiki/Slab_allocation pointing out that some ideas that Linux adopted later were first used in Solaris. -- This message posted from opensolaris.org
