by Brendon » Thu Feb 25, 2016 1:26 pm
With respect to RAM, its really up to you. Less RAM ~= less performance, more ~= More performance. Most of the memory is used for caching (ARC). You can tune it up and down to taste.
For home use and in particular streaming, you wont need 8GB of RAM IMO, although it would use it.
I should also add that if you leave o3x in its default configuration, it will utilise nearly all of your computers memory, until such time as the machine experiences memory pressure e.g. a new application is opened. At which point o3x will release memory in accordance with the load. This mechanism is not 100% perfect, but is generally good enough.
Some people cant get over the idea that ZFS is using most of the computers memory, however in many ways its not really different from the OS filesystem cache. If you look at the memory usage graph, we show up as "wired" memory, whereas the OS cache does not feature on the graph itself.
Brendon