Thing is i have 3 separate mounts divided by content. On normal 720p/1080p content it is ok, its downloading way more than old cache but under control, 1 gbit link is not full.
But on 4K movies..things are out of control, downloading is fully utilized with any options i tried, without buffersize, or with small buffersize, or with read ahead. 4k when i play 1gbit line is fully utilized, even i after i close the stream for 30 seconds or more downloading to cache is still ongoing and 1gbit line fully utilized. Seems i don't know how to limit the 4k files to download only what emby client needs.