This is always an issue for me: Streaming music from FreeNAS stutters and requires a reboot when memory is maxing out my 16GB. Every couple of weeks I check when this happens and CPU is nada (< 2%), Storage is 41% full in the pool, and Memory is maxed out.
Any way to control this? I'm usually running only PlexPass plugin (though not when music is playing), or streaming music from FreeNAS and mostly it's mp3 320k songs and those are not a heavy tax.
Services seem to be the core issue and I believe SMB is a huge problem.